Model year

2020 Mercedes-Benz CLS 450

Coupe, gasoline, built in Germany. Owner complaints on file from Nov 4, 2020 to Mar 24, 2024.

Recall campaigns covering this model year51.68M vehicles or units across those campaigns
Owner complaints52.5 times the median 2020 coupe
Severity index0.02020 coupes average 10.2
First 24 months1Complaints in its first two years
Complaints over time

Complaints about the 2020 Mercedes-Benz CLS 450 peaked in 2022, with 3 filed

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

012320202021202232023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

80% of complaints about the 2020 Mercedes-Benz CLS 450 name electrical system

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

Electrical system
4
Engine and cooling
1
Wheels
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

5 recall campaigns cover the 2020 Mercedes-Benz CLS 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 2020 Mercedes-Benz CLS 450
CampaignFiledSubjectComponentVehiclesRemedy
22V-733Sep 30, 202212-Volt battery in the trunk may not be properly secured, which, in the event of a crash, can cause electrical connection failure, disabling…Electrical system19,968Repair or modification
22V-365May 20, 2022Error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) systemCommunication242,722Software update
22V-232Apr 8, 2022Rearview camera may not display the rearview image due to a software errorBack-over prevention126,443Software update
21V-072Feb 12, 2021On June 18, 2021, an additional 9 vehicles were added, including certain 2021 GLA250, GLC300, 2018 S450, E400, and 2017 CLA250 vehiclesCommunication67Inspection
21V-058Feb 5, 2021Software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the…Communication1,292,258Software update
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2020 Mercedes-Benz CLS 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.

5 complaints on file, page 1 of 1.

  1. Filed Mar 24, 2024Failure Mar 24, 2024Benton, ARWheels

    I purchased my 2020 Mercedes-Benz CLS 450 with approximately 12,000 miles on 08/16/2022. Throughout the course of my ownership the vehicle has had multiple sets of tires replaced due to them either being prematurely bald, developing multiple bubbles, or shredding due to cracked rims. Along with the tires being constantly replaced, I have had to replace 8 rims that have cracked under normal driving conditions. Upon doing research into why my rims crack so frequently, I discovered that this is a common occurrence with my model of Mercedes, as well as several other models. The online forums state, “This is not as a result of your driving, potholes, etc. but due to a design defect with some Mercedes vehicle. This is due to the fact that the factory installed cast aluminum rims coupled with low profile stiff run-flat tires and a relatively stiff suspension result in the rims momentarily exceeding their yield strength during typical driving conditions and failing by cracking, bending and so on which usually also causes the run-flat tires to be damaged as well. This will continue to happen over and over several times per year because this is a design defect.” According to several sources, Mercedes-Benz is aware of this situation and has done little to counteract this situation, only offering a comprehensive tire and wheel package to drivers, at an extra cost of course and paying a few settlements under the table to those who threaten to expose this situation to the public. Mercedes- Benz has ultimately developed, and put into circulation, several models of vehicles with wheels that cannot support the vehicles weight while the vehicle is stationary, let alone while in operation. This flaw in their design is not only costly to replace or an inconvenience to try to resolve, but deadly if the right combination of failures were to occur.

    NHTSA complaint 11579206
  2. Filed Dec 8, 2022Failure Sep 1, 2022Malvern, ARElectrical system

    ******* DELETE VOQ ******* THIS COMPLAINT IS BEING MARKED FOR DELETION BECAUSE IT IS AN INADVERTENT DUPLICATE OF ODI# 11496545*DJR ******* DELETE VOQ *******

    NHTSA complaint 11496546
  3. Filed Dec 8, 2022Failure Sep 30, 2022Malvern, ARElectrical system

    The contact owns a 2020 Mercedes-Benz CLS450. The contact received notification of NHTSA Campaign Number: 22V733000 (Electrical System) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms remedy not available.

    NHTSA complaint 11496545
  4. Filed Aug 24, 2022Failure Apr 21, 202222,000 milesCarson, CAElectrical system

    The contact owns a 2020 Mercedes-Benz CLS450. The contact received notification of NHTSA Campaign Number: 22V533000 (Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had experienced the failure listed in the recall. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 22,000. VIN tool confirms parts not available.

    NHTSA complaint 11481015
  5. Filed Nov 4, 2020Failure Aug 24, 20202,000 milesScottsdale, AZElectrical system, Engine

    THE 2020 MERCEDES CLS HAS A KNOWN DEFECT IN THEIR 48V SYSTEM THAT TURNS THE ENGINE OFF IN LOCATIONS WITH HIGH HET ZONES. I WAS TOLD BY THE MERCEDES SERVICE DEPARTMENT THIS HAS BEEN OCCURRING IN ARIZONA, NEW MEXICO, FLORIDA, NEVADA AND SAUDI ARABIA. IT'S A KNOW ISSUE THAT THEY ARE UNABLE TO FIX CURRENTLY. I HAD MY CHILDREN IN THE CAR WHEN I WAS MAKING A LEFT HAND TURN IN A MAJOR INTERSECTION AND THE CAR JUST STALLED ON ME, LEAVING ME IN A PANIC TO TRY TO START THE CAR AGAIN BEFORE GETTING INTO AN ACCIDENT. MERCEDES PROVIDED ME A LOANER WHILE THEY TRIED TO FIX MY CAR. I WAITED 9 WEEKS TO SEE IF THEY CAN FIX IT, BUT THEY ARE NOT ABLE TO. I HAVE CONTACTED THE MERCEDES DEALERSHIP AS WELL AS THE LOCAL DEALERSHIP AND TOLD THEM I NO LONGER WANT TO LEASE TIS VEHICLE AS IT IS A DANGER TO MY FAMILY. THEY WOULD NOT TAKE THE CAR BACK NOR OFFER A BUYBACK OPTION. THE ONLY OPTION GIVEN WAS A TRADE IN LEASE, BUT THE OPTIONS FOR A CAR COMPARABLE WAS NON EXISTENT IN THE UNITED STATES AS THEIR INVENTORY IS EXTREMELY LIMITED. I ASKED AGAIN SINCE THEY HAD NO CARS TO OFFER ME TO GET MY MONEY BACK AND LOOK FOR ANOTHER COMPANY. I WAS TOLD NO SO I HAD VERY LITTLE OPTIONS AND TOOK THAT CAR BACK LAST WEEK. MICHAEL FAUL THE GENERAL MANAGER THAT I HAVE BEEN WORKING WITH TOLD ME IN OUR FIRST MEETING THAT OF COURSE THEY WILL REIMBURSE ME FOR THE 2 MONTHS OF LEASES I PAID WHEN I DIDN'T HAVE MY CAR. TODAY I RECEIVED AN EMAIL FROM THIS MERCEDES THAT HAS A LETTER ATTACHED TO THIS EMAIL THAT SAID THEY WILL PAY BACK THE TWO MONTH'S OF LEASES IF I SIGN THIS RELEASE THAT THEY ARE NOT LIABLE FOR ANY DAMAGES OR IF ME OR MY FAMILY GET HURT THEY ARE NOT RESPONSIBLE. (I HAVE ATTACHED LETTER FOR YOUR REVIEW) I HAVE TRIED VERY MUCH TO WORK WITH MERCEDES CORPORATE IN ATLANTA AS WELL AS THE LOCAL DEALERSHIP IN SCOTTSDALE, AZ. I FEEL THIS IS BLACKMAIL AND A TERRIBLE WAY OF HIDING A DANGEROUS CAR.

    NHTSA complaint 11373086
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

181 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…
  • LI82.62-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…
  • LI46.10-P-078012 Jul 17, 2026 · Service Bulletin/Repair Instructions
    Complaint Hand detection system – malfunction / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" "Active steering assist not available" Cause Possible causes:…
  • 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…
  • 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…
  • 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…
  • 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…
  • 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 - 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…
  • 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…
  • 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…
  • LI27.35-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…
  • NCU - 2025100006 Nov 7, 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 the current series production configuration. Some customers may notice a noise from the ra…
  • 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…
  • 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…
  • 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…
  • NCU - 2025070002 Jul 18, 2025 · Service Campaign
    Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the 48V battery control unit software might not meet current production specifications. In rare cases, the engine malfunction indicator lamp might…
  • NCU - 2025070003 Jul 18, 2025 · Service Campaign
    Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the 48V battery control unit software might not meet current production specifications. In rare cases, the engine malfunction indicator lamp might…
  • LI83.20-P-079559 Jul 18, 2025 · Service Bulletin/Repair Instructions
    Complaint No cooling output, compressor inoperative. Cause Currently under analyzed. Remedy Please create a TIPS case and provide the following information: -Provide the refrigerant filling capacity -Current actual values from XENTRY (compressor values) -Ha…
  • OTA - 25P5497847 Jul 11, 2025 · Over The Air
    Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the MBUX system software does not correspond with the latest series production configuration. The MBUX system will receive an OTA update that incl…
  • LI46.15-P-063353 Jun 9, 2025 · Service Bulletin/Repair Instructions
    Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function), noise (breakaway noise) when leaving the limit stops of the height adjustment. Cause Height adjustment moves to …
  • LI33.30-P-056665 May 21, 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…
  • CL - 05012025 May 30, 2025 · Other
    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 detection (“DMTL”) on your…
  • LI82.85-P-079271 May 22, 2025 · Service Bulletin/Repair Instructions
    Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS - Service not activated" is displayed in the instrument cluster. Cause The message "SOS - Service not activated" tells the …
  • EW - Tank Leakage May 15, 2025 · Warranty Program/Extension
    In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is extending the warranty coverage on the Diagnostic Module for Tank Leakage detection (D…
  • NCU-2025050001 May 8, 2025 · Emissions
    Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that certain Model Year (“MY”) 2019 – 2022 C-Class, CLS, E-Class, E-Class Coupe/Convertible, GLE/GLS-Class and AMG GT vehicles (206, 257, 213, 238,167 and 290 platforms) are potent…
  • LI54.10-P-071499 May 2, 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…
  • LI46.10-P-078012 May 2, 2025 · Service Bulletin/Repair Instructions
    Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the …
  • LI46.10-P-078012 Apr 11, 2025 · Service Bulletin/Repair Instructions
    Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the …
  • LI82.10-P-078896 Apr 28, 2025 · 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 Apr 28, 2025 · 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. Remedy NOTE: If a pressure compensati…
Source: NHTSA manufacturer communications files.