AutoStatsIQ
Data through Oct 2026
Model year

2018 Mercedes-Benz CLS 550

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (1)Complaints (0)Investigations (1)Bulletins (64)
Recall campaigns covering this model year11.29M vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2018 Mercedes-Benz CLS 550 by year filed

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

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

Complaints by component

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

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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

One recall campaign covers the 2018 Mercedes-Benz CLS 550

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 2018 Mercedes-Benz CLS 550
CampaignFiledSubjectComponentVehiclesRemedy
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.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2018 Mercedes-Benz CLS 550

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.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    1 NHTSA investigation on file

    • EA21002 Engineering analysis, Airbags
      Desiccated Air Bag Inflator Rupture
      Opened Sep 17, 2021, still open
    Source: NHTSA ODI investigations file.
    All investigations
    Service bulletins

    64 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 …
    • 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…
    • 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…
    • 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…
    • EW - HVAC Service Oct 29, 2020 · Warranty Program/Extension
      This NCU replaces the prior NCUs issued on May 18, June 25, 2020 and October 1, 2020 and contains important workshop instructions on how the HVAC Service Warranty repair must be carried out. To enhance the satisfaction of our customers, avoid further costs …
    • 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…
    • 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 …
    • 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…
    • 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…
    • LI54.65-P-066284 Dec 18, 2025 · Service Bulletin/Repair Instructions
      Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The reversing camera or the 360° system functions normally when activated manually or …
    • 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…
    • LI27.10-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…
    • 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…
    • 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…
    • LI82.10-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…
    • LI27.35-P-079039 Mar 24, 2025 · Service Bulletin/Repair Instructions
      Complaint A clicking/ticking/taping noise from underneath the vehicle with engine off during ECO stop event or after parking See video for example Cause Noise originates within the transmission valvebody Remedy Take a video from underneath vehicle recording…
    • LI82.70-P-077433 Mar 5, 2025 · Service Bulletin/Repair Instructions
      Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. C…
    • LI54.65-P-066284 Feb 24, 2025 · Service Bulletin/Repair Instructions
      Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The reversing camera or the 360° system functions normally when activated manually or b…
    • LI54.65-P-066284 Feb 24, 2025 · Service Bulletin/Repair Instructions
      Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The reversing camera or the 360° system functions normally when activated manually or b…
    • LI35.30-P-058566 Jan 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 noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is elimina…
    • LI33.30-P-056665 Jan 16, 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). Cause If the complaint is eliminated by experimentally loose…
    • LI54.65-P-066284 Nov 25, 2024 · Service Bulletin/Repair Instructions
      Complaint The flap of the reversing camera opens and closes by itself during forward travel. This happens several times during the trip. The customer notices the sound of opening and closing. No camera image is displayed in the head unit. The reversing came…
    • LI27.19-P-072588 Nov 20, 2024 · 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 It is important that LI54.15-P-057373 is processe…
    • LI27.10-P-075869 Nov 12, 2024 · Service Bulletin/Repair Instructions
      Complaint Only vehicles with a variable transfer case are affected. 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 Cause Modified oil qual…
    • LI82.35-P-078467 Oct 23, 2024 · Service Bulletin/Repair Instructions
      Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1. Distributor housing leaks. 3.2. Pump fitting leaks. 3.3. Washer fluid hose c…
    • LI54.71-P-078498 Oct 16, 2024 · Service Bulletin/Repair Instructions
      Complaint "Active Emergency Stop Assist Currently Unavailable" and "Active Steering Assist Inoperative" instrument cluster messages along with Tire Pressure Light on in Instrument Cluster. Cause Both systems are temporarily unavailable due to low tire press…
    • LI82.10-P-078302 Sep 10, 2024 · Service Bulletin/Repair Instructions
      Complaint Headlamps fogged or droplets forming. Cause Due to its outlet openings, the headlamp is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate into the headlamp. This can lead to the formation of condensatio…
    • LI82.70-P-077433 Sep 28, 2024 · Service Bulletin/Repair Instructions
      Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. C…
    • CL - 2022080005 Aug 9, 2024 · Other
      In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you that on certain Model Year 2011-2018 C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE, GLS, GLC, SL, and AMG GT vehicles with 6 and …
    • LI82.10-P-078307 Sep 21, 2024 · 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 Sep 10, 2024 · Service Bulletin/Repair Instructions
      Complaint Headlamp or 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. Headlamps comply with all applicabl…
    • LI27.00-P-075630 Sep 9, 2024 · Service Bulletin/Repair Instructions
      Complaint To insure vehicle down time is kept at a minimum and all required information is available when case is escalated, as well as assist technicians with checks that may help lead in resolving issue without case creation. THIS LI IS NOT TO BE USED AS …
    • NCU - 2022080005 Aug 10, 2024 · Service Campaign
      Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE, GLS, GLC, SL, and AMG GT (204, 205, 207, 212, 213, 217, 221, 222, 463, 216, 218…
    • LI27.00-P-073124 Jul 9, 2024 · 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 …
    • LI27.10-P-075869 Jul 9, 2024 · Service Bulletin/Repair Instructions
      Complaint Only vehicles with a variable transfer case are affected. 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 Cause Modified oil qual…
    • LI82.10-P-078069 Jul 23, 2024 · Service Bulletin/Repair Instructions
      Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing …
    • NCU-OTAcommNoMMC Jan 18, 2024 · Service Bulletin/Repair Instructions
      Mercedes-Benz AG (âMBAGâ), the manufacturer of Mercedes-Benz, has determined that in certain MY 2017-2021 C-Class, CLA, CLS, E-Class, GLC, GLE, GLS, AMG GT, S-Class, SL, and SLC (205, 117, 257, 213/238, 253, 166/292, 190/290,217/222, 231, 172) vehicles, the…
    • LI91.18-P-077075 Dec 4, 2023 · Service Bulletin/Repair Instructions
      Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats for extended periods of time (pressure marks). ⢠Objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle). ⢠Light init…
    • LI82.85-P-076800 Oct 10, 2023 · Service Bulletin/Repair Instructions
      The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. The message occurs in particular after the vehicle has been non-operational for an extended period of t…
    • LI82.85-P-076799 Aug 18, 2023 · Service Bulletin/Repair Instructions
      The Mercedes me connect services cannot be activated. The remote status data does not update. Error in N112/9 - control unit for telematics services (HERMES). In the HERMES control unit log, under the "URL" tab, the value DEFAULT is stored for "atpServ…
    • NCU-HU SW Update Aug 28, 2023 · Service Bulletin/Repair Instructions
      Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2018-2023 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and 223 platform) vehicles, the communication mod…
    • ELW - M278 Cat Jul 27, 2023 · Service Bulletin/Repair Instructions
      This NCU replaces the prior NCU issued on May 11, 2023, and clarifies replacement part information. In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz AG (“MB…
    • ELW-M278Catalyst May 11, 2023 · Service Bulletin/Repair Instructions
      This extended warranty applies to the following condition that may necessitate the repair or replacement of the catalytic converter system and is related to: • A check engine Malfunction Indicator Lamp (‘MIL’) may illuminate due to sulfur contamination in …
    • LI68.05-P-060307 Jan 9, 2022 · Service Bulletin/Repair Instructions
      Complaint The range of the integrated garage door opener (GTO) is too short. Cause 1. Vehicles equipped with infrared windows and/or a heated windshield may suffer from complaints involving low transmission power. 2. When comparing the range between the…
    • LI68.05-P-060306 Jan 27, 2022 · Service Bulletin/Repair Instructions
      Complaint The garage door hand transmitter cannot be initialized with the integrated garage door opener in the inside rearview mirror. Cause 1. The integrated garage door opener (GDO) is not compatible with the opening system installed in the garage. 2…
    • LI09.00-P-074093 Dec 8, 2021 · Service Bulletin/Repair Instructions
      "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
    • LI8285P0647651 Aug 25, 2016 · Service Bulletin/Repair Instructions
      Traffic information service and posibly the voice control, nonfunctional after navigation software update.
    • LI8285P055695 Aug 5, 2013 · Service Bulletin/Repair Instructions
      The COMAND unit does not start or the display remains dark.
    Source: NHTSA manufacturer communications files.
    About service bulletins