2011 Mercedes-Benz C300 service bulletins & manufacturer communications
105 manufacturer communications are on file with NHTSA for the 2011 Mercedes-Benz C300. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.
Technical service bulletin 102Warranty extension 2Service campaign 1
- 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 contin…LI82.62-P-078631 · Technical service bulletin · Structure · issued Aug 6, 2026
- 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 trave…LI35.30-P-058566 · Technical service bulletin · Power Train · issued Jul 14, 2026
- 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 bearin…LI33.20-P-078406 · Technical service bulletin · Suspension · issued Jul 7, 2026
- 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 …LI82.30-P-059239 · Technical service bulletin · Visibility/wiper · issued May 19, 2026
- Complaint Potential corrosion on the rear axle carrier Cause Due to market-specific conditions such as moisture, ingress of dirt and/or environmental influences, corrosion can occu…LI35.10-P-078931 · Technical service bulletin · Suspension · issued May 13, 2026
- 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 bearin…LI33.20-P-078406 · Technical service bulletin · Suspension · issued May 12, 2026
- 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 bearin…LI33.20-P-078406 · Technical service bulletin · Suspension · issued Apr 17, 2026
- 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 a…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Apr 16, 2026
- 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 an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Mar 9, 2026
- 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 an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Feb 24, 2026
- 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 (…LI33.30-P-056665 · Technical service bulletin · Power Train · issued Nov 15, 2025
- Complaint Commissioning not possible after replacement of TRANSMISSION 722.9 or of electrohydraulic controller unit (EHS) or of repair kit controller unit (VGS). Cause The wrong ol…LI27.19-P-074985 · Technical service bulletin · Electrical System · issued Jul 16, 2025
- 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 (…LI33.30-P-056665 · Technical service bulletin · Power Train · issued May 21, 2025
- 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, …LI82.10-P-078896 · Technical service bulletin · Exterior Lighting · issued Apr 28, 2025
- 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 an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Apr 28, 2025
- Complaint Potential corrosion on the rear axle carrier Cause Due to market-specific conditions such as moisture, ingress of dirt, and environmental influences, corrosion may be pre…LI35.10-P-078931 · Technical service bulletin · Suspension · issued Apr 21, 2025
- 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…LI82.85-P-079087 · Technical service bulletin · Electrical System · issued Apr 21, 2025
- Complaint Vehicle with atypical reduced heat output. Cause Silicate granulate may have escaped from a damaged bag in the expansion reservoir (not visible), reducing the coolant flo…LI83.20-P-051802 · Technical service bulletin · Engine · issued Apr 1, 2025
- 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 …LI82.70-P-077433 · Technical service bulletin · Electrical System · issued Mar 5, 2025
- Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering functionality …LI33.20-P-078406 · Technical service bulletin · Suspension · issued Jan 28, 2025
- 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 (…LI33.30-P-056665 · Technical service bulletin · Power Train · issued Jan 16, 2025
- 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 directio…LI35.30-P-058566 · Technical service bulletin · Power Train · issued Jan 15, 2025
- 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…LI27.19-P-072588 · Technical service bulletin · Power Train · issued Nov 20, 2024
- 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 …LI82.10-P-078069 · Technical service bulletin · Exterior Lighting · issued Nov 13, 2024
- 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.…LI82.35-P-078467 · Technical service bulletin · Visibility/wiper · issued Oct 23, 2024
- Complaint Tension-releasing impact of the propeller shaft with the force-free in D "KID" function, after vehicle has stopped. Cause The tension-releasing jolt in the drivetrain ori…LI27.00-P-074450 · Technical service bulletin · Power Train · issued Oct 1, 2024
- 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 …LI82.70-P-077433 · Technical service bulletin · Electrical System · issued Sep 28, 2024
- 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, …LI82.10-P-078307 · Technical service bulletin · Exterior Lighting · issued Sep 21, 2024
- 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 c…LI82.10-P-078302 · Technical service bulletin · Exterior Lighting · issued Sep 10, 2024
- 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 …LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Sep 10, 2024
- 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, GL…NCU - 2022080005 · Service campaign · Electrical System · issued Aug 10, 2024
- 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,…CL - 2022080005 · Technical service bulletin · Engine · issued Aug 9, 2024
- 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 …LI82.10-P-078069 · Technical service bulletin · Exterior Lighting · issued Jul 23, 2024
- As previously reported, to enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has …NCU - 24240304 · Technical service bulletin · Structure · issued Mar 12, 2024
- Crease formation on genuine leather seat covers in vehicles with low mileage â ¢ Objects left on the seats for extended periods of time (pressure marks). â ¢ Objects wedged b…LI91.18-P-077075 · Technical service bulletin · Seats · issued Dec 4, 2023
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (â  MBUSAâ  ) is exte…ELW-Fuel Filter · Technical service bulletin · Equipment · issued Nov 3, 2023
- 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 …CL-Fuel Filter Unit PZEV · Technical service bulletin · Fuel/propulsion System · issued Oct 24, 2023
- 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…EW-Fuel Filter Unit(PZEV) · Warranty extension · Fuel/propulsion System · issued Oct 20, 2023
- Mercedes-Benz USA, LLC (MBUSA) has extended the warranty for the rear subframe on the vehicles listed below, from the original New Vehicle Limited Warranty of 4 years/50,000 miles …CL-ELWSubframe · Technical service bulletin · Equipment · issued Mar 31, 2023
- Mercedes-Benz USA, LLC (MBUSA) has extended the warranty for the rear subframe on the vehicles listed below, from the original New Vehicle Limited Warranty of 4 years/50,000 miles …ELW-RearSubframe · Technical service bulletin · Structure · issued Mar 10, 2023
- Mercedes-Benz USA, LLC (MBUSA) has extended the warranty for the rear subframe on the vehicles listed below, from the original New Vehicle Limited Warranty of 4 years/50,000 miles …ELW-RearSubframe · Technical service bulletin · Structure · issued Feb 10, 2023
- 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 (G…LI68.05-P-060306 · Technical service bulletin · Electrical System · issued Jan 27, 2022
- 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 …LI68.05-P-060307 · Technical service bulletin · Electrical System · issued Jan 9, 2022
- After starting the engine, the instrument cluster shows the "EBD not available, diagnosis/test stand" message in yellow.LI4245P073405 · Technical service bulletin · Electrical System · issued Aug 2, 2021
- NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clockLI54.30-P-072145 · Technical service bulletin · Electrical System · issued Dec 10, 2020
- If the customer brakes sharply from a speed of > 30mph, without ABS intervention, there is a single cracking noise from the area of the ESP hydraulic unitLI42.47-P-067502 · Technical service bulletin · Service Brakes, Hydraulic · issued Dec 9, 2020
- 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 ca…EW - HVAC Service · Warranty extension · Visibility/wiper · issued Oct 29, 2020
- Harsh engagement when changing gear range from P to D or RLI27.50-P-071658 · Technical service bulletin · Power Train · issued Sep 30, 2020
- Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. …LI82.10-P-064766 · Technical service bulletin · Equipment · issued Jun 30, 2020
- To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlemen…NCU - HVAC Warra · Technical service bulletin · Equipment · issued May 21, 2020
- All MB cars with code 234 (Blind Spot Assist) or code 237 (Active Blind Spot Assist)LI54 71-P-056477 · Technical service bulletin · Visibility · issued Aug 7, 2019
- Throttle lift-off clunking noises at drive shafts of rear axleLI35 30-P-058566 · Technical service bulletin · Power Train · issued Aug 5, 2019
- Throttle lift-off clunking noises at drive shafts of front axleLI33 30-P-056665 · Technical service bulletin · Suspension · issued Aug 5, 2019
- Seat belt extender toothed rack sluggish or makes noisesLI91 45-P-066075 · Technical service bulletin · Seat Belts · issued Jul 23, 2018
- Check Engine Light is on with DTC P030185/ P030685 for misfire cylinder 1 and 6.LI07 70-P-066276 · Technical service bulletin · Engine and Engine Cooling · issued Mar 12, 2018
- Oil in engine wiring harnessLI05 20-P-067123 · Technical service bulletin · Engine · issued Oct 9, 2017
- Headlamps fogged.LI8210P0647661 · Technical service bulletin · Exterior Lighting · issued Aug 26, 2016
- "Anti-theft protection activated".LI8285P0581859 · Technical service bulletin · Equipment · issued Aug 16, 2016
- Additional information around the recent recall announcement affecting approximately 705,983 Mercedes-Benz passenger vehicles involving Takata driver-side airbags containing PSDl-5…TakataRecall · Technical service bulletin · Air Bags · issued Feb 26, 2016
- Recall Campaign announcement for Takata driver airbags.RecallUpdate · Technical service bulletin · Air Bags · issued Feb 11, 2016
- Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damperLI32.25-P-061137 · Technical service bulletin · Suspension · issued Mar 24, 2015
- Red display message in instrument cluster "Power Steering Malfunction - See Owner's Manual"LI46.35-P-059989 · Technical service bulletin · Steering · issued Oct 16, 2014
- Red display message in instrument cluster "Power Steering Malfunction - See Owner's Manual"LI46.35-P-059989 · Technical service bulletin · Steering · issued Oct 10, 2014
- Noises from flat spring core in backrestLI91.10-P-059387 · Technical service bulletin · Seats · issued Jul 12, 2014
- The pneumatic 4-way lumbar support fails. Lumbar support pockets cannot be filled up or they drain.LI91.10-P-048411 · Technical service bulletin · Seats · issued Jul 12, 2014
- Pneumatic comfort systems with insufficient performance, entirely inoperative or leaky.LI91.25-P-059380 · Technical service bulletin · Seats · issued Jul 10, 2014
- Xentry (mercedes): after engine has started, several issues occurs, an acoustic warning sounds is heard, the instrument cluster displays warning message power steering malfunction,…LI46-35P059241 · Technical service bulletin · Electrical System · issued Jun 20, 2014
- A production fault means that the telematics DVD A 166 827 14 00 cannot be used. Because of this the previous telematics DVDs A 204 827 03 65 and A 204 827 10 65 must continue to b…P-B-82.85-703 · Technical service bulletin · Equipment · issued Mar 10, 2014
- Apple products (iPhone or iPod) are not charged via the serial USB interface of the COMAND Online control unit (A40/3) in the stowage compartment of the center console.LI82.85-P-058582 · Technical service bulletin · Equipment · issued Mar 3, 2014
- The vehicle cannot be started The vehicle may start by itself shortly after the startup attempt with a delay, as the relay can be late closing. and/or The gear selection is display…LI54.15-P-057373 · Technical service bulletin · Power Train · issued Feb 28, 2014
- Battery discharged, vehicle does not start.LI54.10-P-054089 · Technical service bulletin · Electrical System · issued Feb 25, 2014
- Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.LI49.20-P-056353 · Technical service bulletin · Electrical System · issued Feb 25, 2014
- Creaking noise when making vertical or longitudinal adjustment to electrical steering columnLI46.15-P-058505 · Technical service bulletin · Steering · issued Feb 25, 2014
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). Heard once when changing from forward to reverse (and vice versa)LI35.30-P-058566 · Technical service bulletin · Power Train · issued Feb 25, 2014
- Fault code U41600 logged in 'ES' (electric steering) control unit after software update or steering gear replacement. Note: Fault code U41600 means: Implausible data were received …LI46.35-P-058063 · Technical service bulletin · Steering · issued Feb 18, 2014
- Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.LI49.20-P-056353 · Technical service bulletin · Electrical System · issued Feb 12, 2014
- This Customer 1 Action has been initiated because certain mbrace subscribers were recently contacted by mbrace informing them that they need to have an i-button call performed to e…C1A140101 · Technical service bulletin · Equipment · issued Feb 11, 2014
- The key is not recognized in the electronic ignition switch, the vehicle cannot be started and/or the automatic transmission may perform an "Automatic P function" at speeds below 6…LI54.25-P-056472 · Technical service bulletin · Electrical System · issued Feb 10, 2014
- Engine diagnosis warning lamp lights up - Fault code entry (FC) 14A600 or 14A700LI14.20-P-052079 · Technical service bulletin · Engine and Engine Cooling · issued Feb 6, 2014
- This Service Campaign has been initiated because Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that the mbrace software does not correspond to curren…S-SC- 2013090008 · Technical service bulletin · Electrical System · issued Feb 1, 2014
- This Service Campaign has been initiated because Daimler AG (DAG), manufacturer of Mercedes-Benz vehicles, has determined that the seam seal at the spare tire well may not be to sp…P-SC-2014020003 · Technical service bulletin · Structure · issued Feb 1, 2014
- The Parktronic system switches to malfunction. The driver notices a fault message (4 red LEDs and 2 sec continuous signal). The following fault codes are stored in the PTS control …LI54.65-P-058105 · Technical service bulletin · Electrical System · issued Dec 12, 2013
- Xentry (mercedes): with steering at full lock, noise can be heard, like knocking and/or creaking, coming from area of front axle when maneuvering. Models 203 (c240, 320, 32, 230), …LI33-15-P047471 · Technical service bulletin · Suspension · issued Dec 4, 2013
- Software update of COMAND Online control unit.LI8270P056963 · Technical service bulletin · Electrical System · issued Aug 21, 2013
- Xentry (mercedes): check engine light (cel) is activated; stored in engine control unit is very fine leak. Automatic fuel tank leak test software is sensitive and can produces an e…LI-47-40-P053871 · Technical service bulletin · Engine · issued Aug 13, 2013
- The COMAND unit does not start or the display remains dark.LI8285P055695 · Technical service bulletin · Electrical System · issued Aug 5, 2013
- Mobile phone cotacts are not transferred completely.LI8270P055572 · Technical service bulletin · Electrical System · issued Aug 5, 2013
- FC 2783 (Friction power of torque converter lockup clutch is too high) or FC 0741 (Actuation of torque converter lockup clutch not possible) stored in transmission control unit. On…LI27.20-P-055758 · Technical service bulletin · Power Train · issued Jul 30, 2013
- Single, throttle lift-off, clunking noise from the side shaft when starting off (audible at the wheel). The clunk is heard once when changing from forward to reverse (and vice vers…LI33.30-P-056665 · Technical service bulletin · Steering · issued Jul 18, 2013
- Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement.LI82.95-P-056655 · Technical service bulletin · Electrical System · issued Jul 12, 2013
- Engine diagnosis warning lamp activated. Fault code P045600 "Very fine leak" or P044200 "Fine leak" stored in engine control unit.LI47.40-P-053871 · Technical service bulletin · Engine and Engine Cooling · issued Jul 10, 2013
- The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after inter…LI82.85-P-055695 · Technical service bulletin · Electrical System · issued Jul 8, 2013
- Fault message in display - Right rear turn signal light inoperativeLI82.10-P-053604 · Technical service bulletin · Exterior Lighting · issued Jul 8, 2013
- Outside mirror fogged.LI8870P056690 · Technical service bulletin · Visibility · issued Jul 3, 2013
- Model X204 (GLK 250 BT) with AMG Styling Package 321. Model Year 2013 Install Tire Fit Kit, Replace Monroney LabelC1A-130501 · Technical service bulletin · Tires · issued Jul 1, 2013
- Engine does not start, or various fault messages in instrument cluster immediately after engine start and servo assistance is reduced. The following display messages may appear: - …LI46.35-P-055485 · Technical service bulletin · Electrical System · issued Jun 28, 2013
- Summary to be provided on a future date.S-B-54.10/243A · Technical service bulletin · Equipment · issued May 30, 2013
- Summary to be provided on a future date.2012120002 · Technical service bulletin · Engine · issued Apr 18, 2013
- Xentry (mercedes): displayed in multifunction "lane keeping assist is inoperative and active lane keeping assist is inoperative" when driving over lane marking. Models 204 (c300, 3…LI54-71-P055558 · Technical service bulletin · Electrical System · issued Jan 22, 2013
- Mercedes: camshaft adjustment solenoid may leak oil due to settling properties of seal and the engine wiring harness will be retrofitted with four adapter harnesses as a precaution…SC-2012070002 · Technical service bulletin · Electrical System · issued Nov 1, 2012
- Mercedes benz: front or rear seat belt does not roll up correctly. Dirt deposits on the seat belt guide due to soiled seat belt. Also included models 169, f cell, 246, and 231. No …40-P-052794 · Technical service bulletin · Seat Belts · issued Apr 20, 2012
- Xentry (mercedes): the signal light for right rear turn is inoperative. Fault message displayed. *peLI-72-19-P053604 · Technical service bulletin · Exterior Lighting · issued Apr 18, 2012
- Xentry: mercedes benz: vehicle does not perform automatic engine stop although the eco function was activated via the eco button. No model years given. Also included model 169 and …10-P-053538 · Technical service bulletin · Electrical System · issued Apr 5, 2012
- Xentry: display message 'tire pressure monitor inoperative' the signal level difference between front and rear axles is marginal. Therefore no permanent assignment can be made. No …15-P-053382 · Technical service bulletin · Tires · issued Mar 15, 2012
- Xentry: rattling/thumping noises from the area of the steering on rough roads or when driving over road undulations. No model years given. Also included models 168 and 172. *js20-P-053398 · Technical service bulletin · Steering · issued Mar 12, 2012