Model year

2023 Mercedes-Benz E 450

Sedan, gasoline, AWD/All-Wheel Drive, built in Germany. Owner complaints on file from Jun 20, 2023 to Jun 2, 2026.

Recall campaigns covering this model year4236k vehicles or units across those campaigns
Owner complaints172.4 times the median 2023 sedan
Severity index0.02023 sedans average 11.6
First 24 months7Complaints in its first two years
Complaints over time

Complaints about the 2023 Mercedes-Benz E 450 peaked in 2025, with 6 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

024620232024202562026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

35% of complaints about the 2023 Mercedes-Benz E 450 name engine and cooling

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Engine and cooling
6
Powertrain
4
Tires
4
Electrical system
3
Fuel system
3
Back-over prevention
1
Speed control
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

4 recall campaigns cover the 2023 Mercedes-Benz E 450

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2023 Mercedes-Benz E 450
CampaignFiledSubjectComponentVehiclesRemedy
24V-100Feb 9, 202448-volt ground cable connection located in the engine compartment may not be tightened properly and may result in the ground cable overheatingElectrical system12,191Repair or modification
23V-880Dec 21, 2023Fuel pump may shutdown, causing a loss of drive powerFuel system79,676Part replacement
23V-574Aug 11, 2023Due to a software error, the exit warning system audio and visual warnings may fail to alert occupants about approaching vehiclesElectrical system880Software update
23V-445Jun 26, 2023Fuel pump may shutdown, which can result in a loss of drive powerFuel system143,551Part replacement
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2023 Mercedes-Benz E 450

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

17 complaints on file, page 1 of 1.

  1. Filed Jun 2, 2026Failure May 20, 202625,000 milesBoca Raton, FLEngine

    The contact owns a 2023 Mercedes-Benz E-Class. The contact stated while driving at an undisclosed speed, the engine seized. The contact stated that the failure occurred while making a left turn. In addition, a malfunction error message illuminated. The contact stated while attempting to start the vehicle, the vehicle failed to start with the push to start. However, the vehicle did start using the key fob. The vehicle was taken to the dealer, however the failure was not duplicated. The manufacturer was not made aware of the failure. The failure mileage was approximately 25,000.

    NHTSA complaint 11741489
  2. Filed Apr 22, 2026Failure Sep 1, 202515,500 milesPalm Coast, FLElectrical system, Cruise control

    The contact owns a 2023 Mercedes-Benz E450. The contact stated that while driving at various speeds with the cruise control activated, a yellow "Active Lane Keeping Assistance is Inoperable" message was displayed, followed by a red "Emergency Braking to Begin" message displayed on the instrument panel. To prevent the failure, the contact immediately deactivated the cruise control. The dealer was notified about the failure on several occasions, and two separate cases were filed with the manufacturer. The dealer replaced the steering wheel, replaced several fuses, and performed several software updates to correct the failure under warranty; however, the failure persisted after each repair. The vehicle was not repaired. The failure mileage was approximately 15,500.

    NHTSA complaint 11732925
  3. Filed Oct 29, 2025Failure Aug 14, 2025Lyndhurst, OHTires, Pressure monitoring and regulating systems

    RE: Continental Pro Contact GX SSR MOE 245/40 R19 98 H M+S Original factory installed Mercedes E450 tires. I had 3 blowouts from hitting small potholes on 3 different tires in 1.5 years. These are complete immediate blowout going completely flat on impact. It could have very dangerous if I were driving a little faster and fortunately there was no other damage to the car or other persons. In each case, I hit a small pothole, and the tire blew out, flat to the ground. Because these are run flat tires, on the first 2 incidents I was able to drive home and to the dealer for tire repair/replacement. The third one was so bad that I could not drive all the way home and had to get towed. But all 3 incidents were scary and dangerous because of the sudden blowouts. The tires were not repairable and had to be replaced. I believe that the Mercedes Tire inflation instructions is unsafe and they should put more air in the tires to protect from the rim cutting into the tire when hitting a pothole. The driver's door "B" pilar placard says the "cold tire pressure: Front 41 psi Rear 47 psi". Mercedes repair shop inflates the tires according to the Fuel Filler Door decal that says " Front 36 psi, Rear 36 psi." That is a big difference in pressure -- as much as possible 11 psi under pressure. I believe these run flat tires failed because of too low of tire pressure when hitting the pothole. If the tires were inflated with the higher pressures as on the door pilar, the wheel rim would not have been able to cut into and through the tire wall because the higher tire pressure would prevent the impact of the rim cutting through the tire sidewall. I believe this a serious safety issue and Mercedes should be inflating this type run flat MOE tires to a much higher pressure and should not use the low-pressure instructions that are on the fuel door label. There should be a recall and repair instructions to increase run flat tire pressure on Mercedes E class vehicles.

    NHTSA complaint 11696449
  4. Filed Oct 29, 2025Failure Apr 2, 2024Lyndhurst, OHTires, Pressure monitoring and regulating systems

    RE: Continental Pro Contact GX SSR MOE 245/40 R19 98 H M+S Original factory installed Mercedes E450 tires. I had 3 blowouts from hitting small potholes on 3 different tires in 1.5 years. These are complete immediate blowout going completely flat on impact. It could have very dangerous if I were driving a little faster and fortunately there was no other damage to the car or other persons. In each case, I hit a small pothole, and the tire blew out, flat to the ground. Because these are run flat tires, on the first 2 incidents I was able to drive home and to the dealer for tire repair/replacement. The third one was so bad that I could not drive all the way home and had to get towed. But all 3 incidents were scary and dangerous because of the sudden blowouts. The tires were not repairable and had to be replaced. I believe that the Mercedes Tire inflation instructions is unsafe and they should put more air in the tires to protect from the rim cutting into the tire when hitting a pothole. The driver's door "B" pilar placard says the "cold tire pressure: Front 41 psi Rear 47 psi". Mercedes repair shop inflates the tires according to the Fuel Filler Door decal that says " Front 36 psi, Rear 36 psi." That is a big difference in pressure -- as much as possible 11 psi under pressure. I believe these run flat tires failed because of too low of tire pressure when hitting the pothole. If the tires were inflated with the higher pressures as on the door pilar, the wheel rim would not have been able to cut into and through the tire wall because the higher tire pressure would prevent the impact of the rim cutting through the tire sidewall. I believe this a serious safety issue and Mercedes should be inflating this type run flat MOE tires to a much higher pressure and should not use the low-pressure instructions that are on the fuel door label. There should be a recall and repair instructions to increase run flat tire pressure on Mercedes E class vehicles.

    NHTSA complaint 11696446
  5. Filed Oct 29, 2025Failure Feb 25, 2024Lyndhurst, OHTires, Pressure monitoring and regulating systems

    RE: Continental Pro Contact GX SSR MOE 245/40 R19 98 H M+S Original factory installed Mercedes E450 tires. I had 3 blowouts from hitting small potholes on 3 different tires in 1.5 years. These are complete immediate blowout going completely flat on impact. It could have very dangerous if I were driving a little faster and fortunately there was no other damage to the car or other persons. In each case, I hit a small pothole, and the tire blew out, flat to the ground. Because these are run flat tires, on the first 2 incidents I was able to drive home and to the dealer for tire repair/replacement. The third one was so bad that I could not drive all the way home and had to get towed. But all 3 incidents were scary and dangerous because of the sudden blowouts. The tires were not repairable and had to be replaced. I believe that the Mercedes Tire inflation instructions is unsafe and they should put more air in the tires to protect from the rim cutting into the tire when hitting a pothole. The driver's door "B" pilar placard says the "cold tire pressure: Front 41 psi Rear 47 psi". Mercedes repair shop inflates the tires according to the Fuel Filler Door decal that says " Front 36 psi, Rear 36 psi." That is a big difference in pressure -- as much as possible 11 psi under pressure. I believe these run flat tires failed because of too low of tire pressure when hitting the pothole. If the tires were inflated with the higher pressures as on the door pilar, the wheel rim would not have been able to cut into and through the tire wall because the higher tire pressure would prevent the impact of the rim cutting through the tire sidewall. I believe this a serious safety issue and Mercedes should be inflating this type run flat MOE tires to a much higher pressure and should not use the low-pressure instructions that are on the fuel door label. There should be a recall and repair instructions to increase run flat tire pressure on Mercedes E class vehicles.

    NHTSA complaint 11696441
  6. Filed Jun 17, 2025Failure Jun 17, 202550 milesHighland Park, ILTires

    The contact owns a 2023 Mercedes-Benz E450 Convertible equipped with Continental Tires, Tire Line: ProContact GX SSR, Tire Size: 245/40/R19, DOT Number: 16YOF989F4623. The contact stated that while driving at an undisclosed speed over a bumpy road surface, the front driver's side tire experienced a blowout several times, requiring the vehicle to be towed to the dealer, where the front driver's side tire was replaced four times by the dealer. Additionally, the contact stated that the failure recurred while driving, and a tire was replaced. The vehicle manufacturer was notified of the failure, but no assistance was provided. The tire manufacturer was not notified of the failure. The vehicle failure mileage was approximately 50. The tire failure mileage was approximately 50. The VIN was not available.

    NHTSA complaint 11667542
  7. Filed May 23, 2025Failure Nov 7, 2024Madisonville, LAElectrical system

    I am submitting this complaint regarding serious and repeated electronic failures in my 2023 Mercedes-Benz E 450 that pose a significant safety risk to myself and other drivers on the road. The vehicle has experienced complete dashboard failures on multiple occasions, including the loss of speedometer, fuel gauge, and gear shift indicators. Most critically, the vehicle recently shut down while in motion, displaying a “malfunction” warning and disabling the electronic steering system. I was unable to maneuver the vehicle off the road, creating an extremely dangerous situation. This vehicle has been brought to the dealership three or more times for the same issue, with no permanent resolution. I believe this constitutes a serious safety defect. I respectfully request that the NHTSA investigate this matter as a potential recall issue.

    NHTSA complaint 11662824
  8. Filed Feb 4, 2025Failure Feb 3, 2025Warren, NJCamera

    My vehicle is equipped with a camera system which, when in reverse gear, displays objects/people behind the vehicle and, when going forward to park, displays objects/vehicles ahead. For the first 11 months of ownership, the system has worked properly. For the last 6 months the system has worked intermittently. The vehicle, purchased new, is under warranty and has been returned to the dealership 4 times for software updates and and part replacements. Two weeks after the last visit, the camera system was inoperative again. Shortly after I returned home and went out again the camera system worked properly. Several years ago, Mercedes recalled 347,000 vehicles for a similar problem. My vehicle was purchased after the recall and did not fall into the category of vehicles that were recalled but it seems that, with the Mercedes brand, the problem still persists. To the extent the camera system will alert you to the presence of a person when backing up, this is a safety issue which needs to be addressed. Thank you

    NHTSA complaint 11640561
  9. Filed Nov 30, 2024Failure Nov 27, 2024Dallas, TXEngine, Power train

    While driving, malfunction warning flashed on dash, followed by 48v malfunction warning, then engine coolant overheat warning. The car then went into limp mode and finally stopped completely. Luckily this occurred on a residential street and not on a high speed freeway - the car gave very little warning before drastically reduced speed and shutting down systems. A 48 volt battery problem should have a redundant system to prevent the engine from overheating and not shutting down the vehicle at speed. Very dangerous!

    NHTSA complaint 11628074
  10. Filed Sep 12, 2024Failure Jun 19, 2024Fishers, INFuel/propulsion system

    The fuel pump on my vehicle failed multiple times, including coming off start / stop at traffic lights, as well as when being started. When at a stop light turning from red to green, my car did not respond, putting me in danger of being hit from behind. The vehicle is being repaired under warranty at a manufacturer dealership. It appears this is a known issue under NHTSA recall 23V445000, although my vehicle is not currently included in the recall after a VIN search of the NHTSA check for recalls page. My vehicle exhibited the same signs as others affected by this recall, including flashing "malfunction" when it occurred.

    NHTSA complaint 11614216
  11. Filed Jun 4, 2024Failure Jun 4, 2024Davis, CAEngine

    This has happened once before and I reported it then. This time I was stopped at a stop light and when I pressed the accelerator to go when the light turned green, the engine was off and would not go. The screen only said "malfunction" and no error codes (as before). I pressed the start button to turn the car off and then restarted it. It was fine after that. I have left a message with my service agent at my Mercedes dealership. I had previously told them that this had happened before. I am concerned about the safety of a car the stalls like this. Please investigate. I see other reports about this from E class car owners on line in various forums.

    NHTSA complaint 11592511
  12. Filed Mar 21, 2024Failure Mar 16, 2024New Orleans, LAEngine, Fuel/propulsion system

    I purchased an E450 Mercedes before reaching my first service appointment while driving my two daughters home from school the car began to shake uncontrollably, lost power, and then the engine light and oil lights came on. The car was towed to the manufacturer dealership for repair. It was determined that the piston number four was broken and the engine needed to be completely replaced. Less than two months after having the entire engine replaced the car broke down again with a similar shaking. This time one of my children and their friend were in the vehicle with me. The car was towed back to the dealership where they said the fuel pump went out and needed to be replaced. When I arrived to pick up the car, the technician pulling the car around noticed the shaking and the engine light on again. I did not leave in the car. The dealer kept the car to further investigate why the engine light was on again. Two days later they called to say they’d been driving the car around to “air it out” as air must have been trapped in the fuel system and that nothing further needed to be done. I am not confident that this vehicle is safe to drive or properly repaired. I’m also not confident that this vehicle doesn’t have other unknown issues that will arise overtime. It’s unsafe to drive children in this car. I still have not even reached 10,000 miles on this car.

    NHTSA complaint 11578771
  13. Filed Feb 12, 2024Failure Nov 20, 2023600 milesPalm City, FLFuel system, Gasoline

    The contact owns a 2023 Mercedes-Benz E450. The contact received notification of NHTSA Campaign Number: 23V880000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. While the contact’s wife was driving and then stopped at a traffic light, the vehicle independently turned off. The contact stated that several unknown warning lights were illuminated. In addition, the contact stated that the failure caused a traffic back up on a busy roadway. The contact stated that after several attempts, the vehicle restarted. The vehicle was driven to the residence. The contact informed the dealer by phone of the failure and that the parts were not available. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 600.

    NHTSA complaint 11571451
  14. Filed Dec 2, 2023Failure Jul 6, 2023Golden Beach, FLElectrical system, Engine, Power train

    My 2023 Mercedes 450E car was purchased on June 11, 2023 and has 1,750 miles. On 2 to 3 different occasions, I was stopped at a light waiting to make a left turn, fortunately my light was red and not a green permitting turning, which would have meant I would have pulled up and into the cross section to prepare to turn; I pushed the gas in the drive position and large red malfunction letters displayed across the dashboard and the car just revved. I put it in park and then drive postion a few times and had the same result. Finally, I turned the car off and back on, put it in drive, pushed the gas and it went. I live in Miami, with the serious traffic congestion. The issues that my stalled car caused blocking other drivers’ passage through a few lights, can only be imagined Fortunately, no accidents happened as other drivers attempted to get around my vehicle. The car was taken into service on October 9, 2023, many tests were performed, a diagnosis of the stalling problem was provided, however, I was told there no solution to the problem at this time, “maybe in the future” I was told. Turn off the Economy button, I was told. What if I forget? What if someone else is driving the car? As one can clearly read from the service record, attached hereto, the car is irreparable.The car was released to me anyway on October 28, 2023. After complaining to Mercedes corporate, they offered to repurchase my car. I said I wanted a replacement. They said my model had this problem and a replacement would not solve my problem. I asked about the safety of all other owners and drivers coming into contact with this model on the road and why a recall hadn't been issued and there was no response, nor concern from Mercedes. This model can stall in stop and go traffic on the nation's interstate highways and there will be fatalities. Mercedes, fix the car and give notice to owners of this model about the defect.

    NHTSA complaint 11558119
  15. Filed Oct 23, 2023Failure Oct 20, 2023Winter Harbor, Maine, MEPower train

    My first incident was on July 17, 2023, the transmission shifted from drive to neutral, with out me touching the gear shift lever in any way. My safety and any passengers I have in this car, could be at risk, at this point I was going about 40 MPH, going into a gradual curve, entering a Entrance to 95 north, I had slowed down to the entrance ramp speed, this is when the transmission went from Drive to Neutral, with out me touching the gear shift lever. I had a appointment at Quirk Auto Park, there service dept. in Bangor, Maine, no warning lamps came on the dashboard, they proceeded to put the diagnostic tool on the car, they came out maybe 15or20 minutes later, they didn’t find anything. The first incident I also reported to the NHTSA. The second incident took place on 10/20/23, I was going under 25 MPH, I was into a left hand turn, the transmission came out of drive, and went into neutral, I did not touch the gear shift lever at all. There was no warning lamps that came on after this second incident either.

    NHTSA complaint 11551450
  16. Filed Oct 22, 2023Failure Oct 21, 2023Davis, CAEngine

    I had just left home and was about two blocks from my house when the engine stopped running and the word “malfunction” appeared on the display. It would not restart until I hit the off button and then I restarted it. Definite safety issue if I had been on the freeway or a busy street.

    NHTSA complaint 11551242
  17. Filed Jun 20, 2023Failure Jun 19, 2023300 milesWinter Harbor, MEPower train

    The contact owns a 2023 Mercedes-Benz E450. The contact stated that while driving at an undisclosed speed and merging into traffic, the gear shifter inadvertently shifted into neutral (N). There was no warning light illuminated. The contact stated that the RPM was fluctuating. The vehicle was taken to the dealer to be diagnosed; however, the mechanic was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 300.

    NHTSA complaint 11527944
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

168 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

  • LI27.00-P-073124 Sep 4, 2026 · Service Bulletin/Repair Instructions
    Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G‑TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G‑TRONIC automatic transmission facelift) For faster, more effective and more targeted diagnosis, Intelligent …
  • LI46.35-P-067339 Aug 28, 2026 · Service Bulletin/Repair Instructions
    Complaint During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time. OR Rattling, humming, dry sliding/gravel noise from the electric steering system when steering (see attachment). Complaint does not imp…
  • CL - Tank Leak Detection Aug 15, 2026 · Warranty Program/Extension
    Dear Mercedes-Benz Owner: In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA is extending the warranty coverage for the Diagnostic Module for Tank Leakage …
  • LI72.20-P-075746 Aug 24, 2026 · Service Bulletin/Repair Instructions
    Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so…
  • LI82.85-P-079087 Aug 6, 2026 · Service Bulletin/Repair Instructions
    Complaint A popup is seen on the HU with the message "data connection temporarily not available". Potentially affected functionalities in NTG4.5, NTG5 1.Weather 2.Local Search 3.IP Radio 4.Send2Car 5.Speech Detection Service 6.Navigation 7.iHeartRadio 8.Tra…
  • LI82.62-P-078631 Aug 6, 2026 · Service Bulletin/Repair Instructions
    Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis wor…
  • LI27.00-P-075630 Aug 5, 2026 · Service Bulletin/Repair Instructions
    Complaint This document is intended as a pre-case diagnostic reference for transmission related concerns. It will also ensure that if a case is necessary, all supporting documentation is available. This should not be used on its own as justification for cre…
  • LI27.00-P-080840 Aug 4, 2026 · Service Bulletin/Repair Instructions
    Complaint Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L (PNs: A002989060312 and A002989060313) bottles are out of stock or in limited s…
  • EW - DMTL Jul 31, 2026 · Warranty Program/Extension
    This NCU replaces the prior NCU issued on May 15, 2025, and contains additional MY 2023 and MY 2024 vehicles which are highlighted below. In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of…
  • LI35.30-P-058566 Jul 14, 2026 · Service Bulletin/Repair Instructions
    Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by exp…
  • LI33.20-P-078406 Jul 8, 2026 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comp…
  • LI33.20-P-078406 Jul 7, 2026 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comp…
  • PSL-NCU Return Parts 6/19 Jun 19, 2026 · Other
    Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, July 9, 2026. After July 9th…
  • LI00.20-P-080703 Jun 12, 2026 · Service Bulletin/Repair Instructions
    Complaint Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop menu, e.g., 505 or 550A, which includes a service A. Cause The root cause is currently being investigated. Remedy To determine the cause, the…
  • LI82.85-P-080507 May 26, 2026 · Service Bulletin/Repair Instructions
    Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument cluster. In addition, the following two conditions are also met: • HERMES (N1…
  • PSL-NCU Return Parts 5/22 May 22, 2026 · Other
    Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, June 11, 2026. After June 11…
  • LI82.85-P-080559 May 26, 2026 · Service Bulletin/Repair Instructions
    Complaint The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the HERMES control unit (N112/9) is not supported for gray-market vehicles. Cause Before deactivating the HERMES control unit (N112/9), it must be c…
  • LI82.30-P-059239 May 19, 2026 · Service Bulletin/Repair Instructions
    Complaint There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper blades squeaking, chattering, shuddering B: The windshield is not wiped completely (streaking) C: During the downward movement water is pulled …
  • PSL-NCU Return Parts 5/15 May 15, 2026 · Other
    The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, June 4, 2026. After June 4th, returns of these parts will no…
  • LI33.20-P-078406 May 12, 2026 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comp…
  • PSL-NCU Return Parts 4/17 Apr 17, 2026 · Other
    The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, May 7, 2026. After May 7th, returns of these parts will no l…
  • LI82.10-P-078301 Apr 16, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamp, front fog lamp leaky or fogged. Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm…
  • LI00.01-P-078887 Apr 24, 2026 · Service Bulletin/Repair Instructions
    Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numbers, and how to identify. • Network/wiring architecture groups to baumuster q…
  • LI33.20-P-078406 Apr 17, 2026 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comp…
  • LI72.20-P-075746 Apr 2, 2026 · Service Bulletin/Repair Instructions
    Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so…
  • LI72.40-P-071889 Apr 7, 2026 · Service Bulletin/Repair Instructions
    Complaint When closing the door, the side window may remain slightly open (short stroke position). Automatic window raising function of side window inoperative. NOTE: Window is fully operational while holding the switch Cause Software in door control unit (…
  • LI00.01-P-078887 Mar 25, 2026 · Service Bulletin/Repair Instructions
    Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numbers, and how to identify. • Network/wiring architecture groups to baumuster q…
  • LI82.00-P-080029 Mar 9, 2026 · Service Bulletin/Repair Instructions
    Complaint The seat may no longer be adjustable using the electric seat adjustment switch on the door module. No related error is stored in the quick test. Cause Under certain conditions, the electric seat adjustment switch may remain in sleep mode. It is th…
  • LI82.10-P-078301 Mar 9, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm …
  • LI54.10-P-073164 Mar 4, 2026 · Service Bulletin/Repair Instructions
    Complaint Yellow information message in driver display (instrument cluster): "Switch on motor to charge the 12V battery" Cause The state of charge (SOC) of the 12V battery has dropped to 45% or less. Remedy This warning message appears as soon as the state …
  • LI54.10-P-069698 Feb 27, 2026 · Service Bulletin/Repair Instructions
    Complaint This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206. For 223 with fault code B1FCB97 follow LI54.10-P-076026. Various causes are possible. The faults lis…
  • LI72.20-P-075746 Feb 25, 2026 · Service Bulletin/Repair Instructions
    Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so tha…
  • LI82.10-P-078307 Feb 25, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A…
  • LI82.10-P-078301 Feb 24, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm …
  • LI82.10-P-078896 Feb 24, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A…
  • LI27.19-P-080219 Feb 13, 2026 · Service Bulletin/Repair Instructions
    Complaint Check engine light on with the following fault is current in the VGS Control Unit: P084300 Oil pressure sensor 'A' has a short circuit to positive stored in VGS control unit. Cause Electrical failure of oil pressure sensor integrated into VGS Cont…
  • NCU - 2025090001 Feb 13, 2026 · Service Campaign
    Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the TIREFIT sealant bottle may not meet specifications. The possibility exists that the sealant bottle may leak or may have otherwise been removed…
  • NCU - 2024090007 Feb 14, 2026 · Service Campaign
    Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control unit software does not correspond to current production specifications. As a consequence, the functionality of the post-catalys…
  • LI54.71-P-080236 Feb 3, 2026 · Service Bulletin/Repair Instructions
    Complaint Red ring displayed around vehicle when front or rear camera door actuates. Please also see LI54.65-P-080132 for additional listed red ring causes. Cause EMF interference. Remedy Camera functionality is not affected. Cameras and displays operate no…
  • LI27.10-P-075869 Feb 3, 2026 · Service Bulletin/Repair Instructions
    Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistak…
  • LI00.01-P-078887 Jan 21, 2026 · Service Bulletin/Repair Instructions
    Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numbers, and how to identify. • Network/wiring architecture groups to baumuster q…
  • LI83.30-P-079850 Jan 16, 2026 · Service Bulletin/Repair Instructions
    Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy *Note - This Li does not apply if there are other Li's that apply to your concern OR you have a fault and/or guided te…
  • LI83.30-P-079850 Jan 15, 2026 · Service Bulletin/Repair Instructions
    Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy AC Diagnosis (General) Initial Steps Verify Customer Concern • Confirm the issue reported by the customer. Compare to …
  • LI83.30-P-079850 Jan 7, 2026 · Service Bulletin/Repair Instructions
    Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy AC Diagnosis (General) Initial Steps Verify Customer Concern • Confirm the issue reported by the customer. Compare to …
  • LI27.35-P-080160 Dec 20, 2025 · Service Bulletin/Repair Instructions
    Complaint (Original LI document #: LI27.35-P-079039) Clicking noises from the electro-hydraulic control unit (EHS) when the vehicle is stationary and ECO Start/Stop is active (combustion engine is off). The noise is more noticeable outside the vehicle and i…
  • LI54.18-P-067550 Dec 6, 2025 · Service Bulletin/Repair Instructions
    Complaint <p>ESP®, BAS, PRE-SAFE®, HOLD function, Hill-Start Assist, ESP® trailer stabilization, Adaptive Brake Lights, Lane Keeping Assist, Blind Spot Assist, Adaptive Brake Assist, and/or ATTENTION ASSIST may be temporarily unavailable. The brake system c…
  • LI33.30-P-056665 Nov 15, 2025 · Service Bulletin/Repair Instructions
    Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eli…
  • LI27.60-P-079967 Nov 17, 2025 · Service Bulletin/Repair Instructions
    Complaint The shift from 1st to 2nd gear may be uncomfortable under light load. Cause Vehicles with engine M264 and transmission 725.0 may be equipped with specific software versions. Remedy Update Transmission Software (VGSNAG3). 1. Perform IPR and update …
  • LI27.35-P-079971 Nov 10, 2025 · Service Bulletin/Repair Instructions
    Complaint Possible complaints about shift quality, issues with learning the park lock, and slipping/rinse entries in the EEPROM or Transmission Health system following the replacement of the below components: - The electrohydraulic control unit (EHS valve b…
  • LI27.10-P-075869 Nov 3, 2025 · Service Bulletin/Repair Instructions
    Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistak…
  • LI42.10-P-079904 Oct 20, 2025 · Service Bulletin/Repair Instructions
    Complaint At low speeds and light brake pressure, brakes will make a groaning or honking noise. Cause Frictional vibrations with very light brake pressure/modulations. Remedy This condition can be duplicated on most vehicles. To validate, use a like for lik…
  • NCU - 2024090007 Oct 11, 2025 · Service Campaign
    Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control unit software does not correspond to current production specifications. As a consequence, the functionality of the post-catalys…
  • LI54.10-P-071499 Sep 25, 2025 · Service Bulletin/Repair Instructions
    Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt battery. The XENTRY batt…
  • LI54.10-P-069698 Sep 19, 2025 · Service Bulletin/Repair Instructions
    See Attachment
  • LI54.10-P-079772 Sep 16, 2025 · Service Bulletin/Repair Instructions
    Complaint After a software update from campaign 2025050001 of component LIB48_222 - G1/3 (48 V on-board electrical system battery) from software release A 000 902 50 48 to software release A 000 902 15 89, the fault code B183319 may be output. B183319 "The …
  • LI27.19-P-072588 Sep 17, 2025 · Service Bulletin/Repair Instructions
    Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission control unit Y3/8n4 Remedy For vehicles with 722.9 transmission: Ensure LI54…
  • LI54.10-P-079772 Sep 11, 2025 · Service Bulletin/Repair Instructions
    Complaint After a software update of component LIB48_222 - G1/3 (48 V on-board electrical system battery) from software release A 000 902 50 48 to software release A 000 902 15 89, the fault code B183319 may be output. B183319 "The battery for the 48V on-bo…
  • LI80.20-P-078308 Sep 5, 2025 · Service Bulletin/Repair Instructions
    Complaint One of the flush door handles (Also referred to as Seamless Door Handles) does not extend/retract (and/or) the KeylessGo sensor surfaces do not respond. Cause Multiple possible causes can be inferred from the table, see remedy (additionally as ref…
  • LI82.85-P-079723 Aug 29, 2025 · Service Bulletin/Repair Instructions
    Complaint Users report that the browser no longer supports search queries entered directly into the address bar. Cause This update is due to Microsoft discontinuing the Bing Search API, which previously supported this feature. Remedy This behavior is consid…
  • LI33.20-P-078406 Jul 25, 2025 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comp…
Source: NHTSA manufacturer communications files.