AutoStatsIQ
Data through Oct 2026
Model year

2018 Mercedes-Benz GLC 350

SUV, plug-in hybrid, built in Germany. Owner complaints on file from Dec 28, 2023 to Mar 31, 2024.

Recalls (1)Complaints (2)Investigations (1)Bulletins (86)
Recall campaigns covering this model year11.29M vehicles or units across those campaigns
Owner complaints2Below the median 2018 suv
Severity index0.02018 suvs average 5.2
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2018 Mercedes-Benz GLC 350 peaked in 2023, with 1 filed

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

00.250.50.75120231202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

50% of complaints about the 2018 Mercedes-Benz GLC 350 name engine and cooling

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

Engine and cooling
1
Fuel system
1
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 GLC 350

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 GLC 350
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 GLC 350

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.

2 complaints on file, page 1 of 1.

  1. Filed Mar 31, 2024Failure Mar 26, 2024Alpharetta, GAEngine

    P052E Error in the control panel appears a light engine

    NHTSA complaint 11580321
  2. Filed Dec 28, 2023Failure Nov 16, 2022Scottsdale, AZFuel/propulsion system

    There is a problem with the fuel pressure sensor or wiring to the fuel pump control unit. This causes the fuel bay door to malfunction, meaning sometimes it won't open and sometimes it opens on its own. Today, my local Mercedes dealer (Mercedes of Seattle) quoted $5081.00 to repair this. See attached electronic quote that I rejected and then it disappeared but I saved a screenshot of it. The car has less than 20,000 miles on it. This issue first appeared about a year ago, indicated by a solid yellow warning light (vehicle icon) on the dashboard.

    NHTSA complaint 11562425
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

86 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.

  • 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…
  • 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…
  • LI82.30-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 …
  • EW- Accelerator Wiring Aug 5, 2022 · Warranty Program/Extension
    Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has extended the warranty for the accelerator pedal wiring harness and connectors from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 10 years/120,000 miles for cer…
  • EW-Low Pressure Fuel Hose Aug 20, 2021 · Warranty Program/Extension
    This NCU replaces the prior NCU issued on July 30, 2021 and includes an additional population (33) of certain MY 2018 Baumusters covered under this extended warranty. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has extended the wa…
  • 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…
  • 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…
  • 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…
  • LI54.71-P-078802 May 30, 2025 · Service Bulletin/Repair Instructions
    Complaint MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all chassis use Xentry to update head unit (A26/17). Target boot software number sho…
  • LI68.50-P-079347 May 29, 2025 · Service Bulletin/Repair Instructions
    Complaint Load compartment cover generates a creaking noise during driving when pulled out to covering position. Cause Aluminum cassette scrapes on the inside of the end cap. The contact point causes creaking noises. Remedy Disassemble end caps of load comp…
  • 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…
  • 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…
  • LI82.10-P-079175 Apr 21, 2025 · Service Bulletin/Repair Instructions
    Complaint Instrument cluster message for rear turn signal lamp despite functioning rear lamp. Fault code in N10/8 - rear signal acquisition and actuation module in the quick test: B164B49 The rear right turn signal lamp has malfunctioned. There is an intern…
  • LI54.71-P-079104 Apr 7, 2025 · Service Bulletin/Repair Instructions
    Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a speed limit ("- -"). • Flashing when current vehicle speed is under speed limit…
  • LI54.71-P-078802 Mar 28, 2025 · Service Bulletin/Repair Instructions
    Complaint MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all chassis use Xentry to update head unit (A26/17). Target boot software number sho…
  • 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…
  • LI54.71-P-078802 Feb 3, 2025 · Service Bulletin/Repair Instructions
    Complaint MBUX headunit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Under analysis. Remedy For chassis 118, 167, 177, 213, 238, 243, 247, 253, and 293 use Xentry to update headunit (A26/17). T…
  • 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…
  • LI88.60-P-072093 Jan 24, 2025 · Service Bulletin/Repair Instructions
    Complaint Fuel door may require several attempts to open. Please note that if the complaint "Fuel filler flap not opening" occurs, it is important to check the fuel filler flap before replacing the central locking actuator. For gasoline hybrid vehicles wher…
  • LI72.00-P-071544 Jan 24, 2025 · Service Bulletin/Repair Instructions
    Complaint Paint damage on door paneling in area of door handle (see picture 1). Cause Alignment of door handle bearing bracket is not correct. Remedy 1. Paint the affected area of the door paneling using the spot repair procedure in accordance with the manu…
  • LI54.10-P-077250 Dec 11, 2024 · Service Bulletin/Repair Instructions
    Complaint Customer states CEL is on. Cause Quick test shows FC P0A7F00 The state of health limit of the hybrid/high-voltage battery module has been reached. No drivability concerns occurred and vehicle drives as normal. Remedy Do not replace any parts!! 254…
  • 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…
  • 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…
  • LI01.20-P-078446 Oct 4, 2024 · Service Bulletin/Repair Instructions
    Complaint Check engine light on. One of the below fault codes is current in the engine control module (N3/10). P04DB29, P04DB31, P04DB79 Cause Open circuit or high resistance to crankcase vent line contact Remedy 1. Check the electrical connector for the re…
  • 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…
  • 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…
  • 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 …
  • LI46.35-P-073051 May 8, 2024 · Service Bulletin/Repair Instructions
    Complaint Noticeable vibrations at the steering wheel: • At speeds between 40mph and 75mph • On straight stretches of road and in long corners • With driver assistance systems switched on Cause Control oscillations in the electric power steering. Remedy Per…
  • NCU - 2024020008 Mar 1, 2024 · Service Bulletin/Repair Instructions
     Always use the latest XENTRY Diagnosis software release with all available add-ons.  Make sure to follow the operation steps exactly as described in XENTRY Diagnosis.  Use a battery charger to ensure sufficient power supply of the vehicle on-board ele…
  • 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…
  • NCU-EW Pressure Jan 18, 2024 · Service Bulletin/Repair Instructions
    In our continuing efforts to assure 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 for the pressure sensor in certain Model Year (MY) hybri…
  • 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…
  • ELW -Intake Line Sep 22, 2023 · Service Bulletin/Repair Instructions
    In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (“MBUSA”) is extending the coverage for the intake line assembly on your vehicle from the original New V…
  • 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…
  • ELW- Intake Line Aug 24, 2023 · Service Bulletin/Repair Instructions
    In our continuing efforts to assure 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 intake line assembly in certain Model Year (“MY…
  • 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…
  • NCU-2023060003 Jun 15, 2023 · Service Bulletin/Repair Instructions
    Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (“MY”) 2016 – 2021 C-Class (205 platform), E-Class (213 platform) and GLC (253 platform) vehicles, the air conditioning control unit software may not mee…
  • LI82.85-P-075375 Jun 9, 2023 · Service Bulletin/Repair Instructions
    In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of °C, or vice versa). Temperature setting in Mmc mobile application settings incorrect Remedy Adjust the setting in the Mercedes me connect app via mobile ph…
  • LI32.33-P-070817 Jan 9, 2023 · Service Bulletin/Repair Instructions
    Complaint - AIRMATIC fault message in instrument cluster - Compressor inoperative, 40A compressor fuse possibly triggered. - Vehicle level is not adjusted correctly, the vehicle possibly leans at an angle Cause Moisture in the compressor freezes at tem…
  • LI72.00-P-075481 Nov 17, 2022 · Service Bulletin/Repair Instructions
    Complaint Staining on door trim strips and top and bottom trim elements on rear side windows Cause Damage to protective coating (due to poor original optimization of coating) of door beltline trim strips, door upper trim strips and side window trim elem…
  • LI46.35-P-062791 Nov 7, 2022 · Service Bulletin/Repair Instructions
    Complaint 1. Vibrations noticeable at steering wheel when front axle is excited when driving at a speed between 65 km/h and 130 km/h over an obstacle. • Driving over deeply recessed manhole covers • Driving over cross joints • Driving over extreme surf…
  • LI72.00-P-075481 Oct 24, 2022 · Service Bulletin/Repair Instructions
    Complaint Staining on door trim strips and top and bottom trim elements on rear side windows Cause Damage to protective coating of door beltline trim strips, door upper trim strips and side window trim element due to strong alkaline detergent in car was…
  • LI82.60-P-075292 Sep 8, 2022 · Service Bulletin/Repair Instructions
    Complaint Customer states after a bus sleep the SiriusXM category changes from "My Favorites" to "All Stations" or a different category. Sometimes, the "My Favorites" category will be unavailable for the entire drive cycle. Cause …
  • LI46.15-P-075284 Sep 12, 2022 · Service Bulletin/Repair Instructions
    Complaint Malfunction of the electric steering column adjustment. The adjustment application by the driver does not correspond to the adjustment direction of the steering column. Cause Polarity reversal of the lines M20/1 (steering column adjustment mot…
  • LI46.15-P-063353 Sep 12, 2022 · 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). Cause Height adjustment moves to the top/bottom limit stop and jams. Remedy There are 2 repair procedures t…
  • LI82.85-P-075223 Aug 26, 2022 · Service Bulletin/Repair Instructions
    Complaint In an initial quick test, DTC B238A00 "Fan 2 of the control unit has malfunctioned" may be active and/or stored in the MBUX Multimedia System (A26/17) Cause Current MBUX Multimedia System (A26/17) software release Remedy If there is …
  • ELW-AccelPedal Jul 1, 2022 · Service Bulletin/Repair Instructions
    Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has extended the warranty for the accelerator pedal wiring harness and connectors from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 10 years/120,000 miles for c…
  • LI46.15-P-063353 Jul 14, 2022 · 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). Cause Height adjustment moves to the top/bottom limit stop and jams. 1. Steering column height adjustment tr…
  • LI32.25-P-066246 Jul 11, 2022 · Service Bulletin/Repair Instructions
    Complaint Thumping noise on rear axle shock absorber on rough road. Cause Until now the rear axle shock absorber support bushing was only available together with the rear axle shock absorber as a replacement part. In future, the rear axle shock absorber…
  • LI46.35-P-062791 Jun 13, 2022 · Service Bulletin/Repair Instructions
    Complaint 1. Vibrations noticeable at steering wheel when front axle is excited when driving at a speed between 65 km/h and 130 km/h over an obstacle. • Driving over deeply recessed manhole covers • Driving over cross joints • Driving over extreme surf…
  • LI46.35-P-062791 Apr 29, 2022 · Service Bulletin/Repair Instructions
    Complaint 1. Vibrations noticeable in steering wheel when front axle is excited while driving at a speed above 40 mph over an obstacle. • Driving over deeply recessed manhole covers • Driving over cross joints • Driving over extreme surface undulations…
  • LI54.10-P-071499 Mar 31, 2022 · 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 …
  • SC-202203005 Mar 11, 2022 · Service Bulletin/Repair Instructions
    Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2015-2018 C-Class and GLC-Class (205 and 253 platform) vehicles, the software for the powertrain control unit may not correspond to the current production spe…
Source: NHTSA manufacturer communications files.
About service bulletins