Mercedes-Benz C-Class Service Bulletins (2019)

237 manufacturer communications on file.

• November 12, 2020•Document ID: 10186134

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI35.31-P-072107

  Date Added:

  February 1, 2021

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Communication errors with control unit AWD_M- FA2 - N15/17 - All-wheel drive (transfer case)

  Associated Products (10)

  2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLA-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz GLA-Class
  Associated Documents

  • DownloadMC-10186134-0001.pdf↗
• October 29, 2020•Document ID: 11031594

  Warranty Program/Extension
  VISIBILITY/WIPER

  Mfr Comm. #:

  EW - HVAC Service

  Date Added:

  April 28, 2026

  Manufacturer:

  MERCEDES-BENZ

  Summary

  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 of litigation, and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold and mildew odors originating from the HVAC system in certain Mercedes-Benz vehicles. As part of the settlement, MBUSA has agreed to offer sliding-scale warranty coverage for certain vehicles diagnosed as having mold or mildew odors originating from the HVAC system. Although the settlement has received court approval, warranty coverage will not take effect until December 7, 2020, when the appeal period for class members will have expired. If the settlement takes effect, warranty coverage will include cleaning of the evaporator and replacement of the HVAC filters.

  Associated Products (58)

  2019 Mercedes-Benz C-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz GLA-Class2019 Mercedes-Benz GLC-Class2019 Mercedes-Benz GLE-Class2019 Mercedes-Benz GLS-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz CLS-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz GLA-Class2018 Mercedes-Benz GLC-Class2018 Mercedes-Benz GLE-Class2018 Mercedes-Benz GLS-Class2017 Mercedes-Benz C-Class2017 Mercedes-Benz CLS-Class2017 Mercedes-Benz E-Class2017 Mercedes-Benz GLA-Class2017 Mercedes-Benz GLC-Class2017 Mercedes-Benz GLE-Class2017 Mercedes-Benz GLS-Class+ 38 more
  Associated Documents

  • DownloadMC-11031594-0001.pdf↗
• September 16, 2020•Document ID: 10181128

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  LI46.15-P-071669

  Date Added:

  October 19, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Cracking/Creaking Noises Coming From The Area Of The Mechanical Steering Column

  Associated Products (16)

  2020 Mercedes-Benz CLS-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz EQC-Class2020 Mercedes-Benz GLC-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLS-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz GLC-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz GLC-Class2017 Mercedes-Benz C-Class2017 Mercedes-Benz E-Class2017 Mercedes-Benz GLC-Class2016 Mercedes-Benz C-Class2016 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-10181128-0001.pdf↗
• August 26, 2020•Document ID: 10179950

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.50-P-071658

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Harsh engagement when changing gear range from P to D or R

  Associated Products (8)

  2020 Mercedes-Benz C-Class2020 Mercedes-Benz S-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz S-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz S-Class2017 Mercedes-Benz S-Class2015 Mercedes-Benz C-Class
  Associated Documents

  • DownloadMC-10179950-0001.pdf↗
• August 24, 2020•Document ID: 10179949

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.00-P-060741

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Shifting complaints and transmission fault codes in vehicles with transmission 725.0

  Associated Products (16)

  2020 Mercedes-Benz C-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz EQC-Class2020 Mercedes-Benz S-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz S-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz S-Class2017 Mercedes-Benz E-Class2017 Mercedes-Benz S-Class2016 Mercedes-Benz E-Class2015 Mercedes-Benz C-Class2015 Mercedes-Benz E-Class2014 Mercedes-Benz E-Class
  Associated Documents

  • DownloadMC-10179949-0001.pdf↗
• August 14, 2020•Document ID: 10179973

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE; ENGINE

  Mfr Comm. #:

  NCU-2020080005

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz, has determined that on certain MY19-20 C-Class, GLC-Class, and AMG GT (205, 253, and 290 platform) vehicles, the software for the AMG drive unit control unit does not correspond to the current series production configuration. As a result, noise may occur from the engine mounts. An authorized Mercedes-Benz dealer will update the software as necessary.

  Associated Products (5)

  2020 Mercedes-Benz AMG GT2020 Mercedes-Benz GLC-Class2019 Mercedes-Benz AMG GT2019 Mercedes-Benz C-Class2019 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-10179973-0001.pdf↗
• July 31, 2020•Document ID: 10179966

  Service Bulletin/Repair Instructions
  COMMUNICATION; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

  Mfr Comm. #:

  LI82.85-P-071453

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional

  Associated Products (84)

  2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2021 Mercedes-Benz GLE-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz AMG GT2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz CLS-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz GLA-Class2020 Mercedes-Benz GLC-Class2020 Mercedes-Benz GLE-Class2020 Mercedes-Benz S-Class2020 Mercedes-Benz SLC-Class2020 Mercedes-Benz SL-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz AMG GT2019 Mercedes-Benz B-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz CLS-Class+ 64 more
  Associated Documents

  • DownloadMC-10179966-0001.pdf↗
• July 20, 2020•Document ID: 10178732

  Service Bulletin/Repair Instructions
  EQUIPMENT:APPLIANCE:AIR CONDITIONER

  Mfr Comm. #:

  LI83.30-P-071494

  Date Added:

  August 24, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Air Conditioning Intermittently Does Not Cool

  Associated Products (11)

  2020 Mercedes-Benz C-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz CLS-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz EQC-Class2020 Mercedes-Benz SLC-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz CLS-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz SLC-Class
  Associated Documents

  • DownloadMC-10178732-0001.pdf↗
• July 10, 2020•Document ID: 10178743

  Service Bulletin/Repair Instructions
  SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY; ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  NCU-2020060019

  Date Added:

  August 24, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz, has determined that the active engine mounts in certain C-Class (model series 205), E-Class (model series 213), GLC (model series 253), and AMG GT (model series 290) vehicles cannot be energized after a failure of the acceleration sensors. As a result, noises from the rear axle differential would be noticeable. This is why a software update of the AMG drive unit control unit must be performed in the affected vehicles. The work required for this purpose can be found in the attached work description.

  Associated Products (5)

  2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz CLS-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-10178743-0001.pdf↗
• July 2, 2020•Document ID: 10178712

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, OTHER

  Mfr Comm. #:

  LI18.40-P-070746

  Date Added:

  August 24, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Message in the Instrument Cluster "Refill 1L Oil at the Next Fuel Stop"

  Associated Products (6)

  2020 Mercedes-Benz C-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz CLS-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz CLS-Class
  Associated Documents

  • DownloadMC-10178712-0001.pdf↗
• June 30, 2020•Document ID: 10178715

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING:HEADLIGHTS

  Mfr Comm. #:

  LI82.10-P-063239

  Date Added:

  August 24, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Headlamps fogged

  Associated Products (8)

  2020 Mercedes-Benz C-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz CLS-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz CLS-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz CLA-Class
  Associated Documents

  • DownloadMC-10178715-0001.pdf↗
• June 30, 2020•Document ID: 10177571

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; EQUIPMENT; EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES

  Mfr Comm. #:

  LI82.10-P-064766

  Date Added:

  July 27, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  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. This can result in deposits on the diffuser and lens. Check housing cover of lamp unit for natural fogging or dew as per GI82.10-P-009047. . 1. If a reduction in the degree of fogging is visible, the desiccant packs can be used once the condensation has completely evaporated. 1.1. Order the required service covers by referring to the variant overview. 1.2. Remove lamp unit 1.3. Remove all grommets from vent openings. 1.4. Seal vent openings with sealing profile. Important: All openings must be sealed carefully for the pressure compensation membrane to work properly! 1.5. Remove existing service cover 1.6. Place desiccant packs in new service covers and bolt down 1.7. Stick new diaphragm onto specified surface on service cover [picture of service cover] Note: The bonding surface must be clean and dry. 06

  Associated Products (80)

  2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz GLB-Class2020 Mercedes-Benz S-Class2020 Mercedes-Benz SLC-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz B-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz S-Class2019 Mercedes-Benz SLC-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz CLA-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz S-Class2018 Mercedes-Benz SLC-Class2017 Mercedes-Benz C-Class2017 Mercedes-Benz CLA-Class+ 60 more
  Associated Documents

  • DownloadMC-10177571-0001.pdf↗
• April 30, 2020•Document ID: 10175245

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  LI82.85-P-071023

  Date Added:

  May 18, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  NTG5.5 Audio 20 with codes 355 and 357: Vehicle positioning inaccurate / implausible, route guidance not possible

  Associated Products (5)

  2020 Mercedes-Benz C-Class2019 Mercedes-Benz C-Class2018 Mercedes-Benz C-Class2017 Mercedes-Benz C-Class2016 Mercedes-Benz C-Class
  Associated Documents

  • DownloadMC-10175245-0001.pdf↗
• February 19, 2020•Document ID: 10172681

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.30-P-070902

  Date Added:

  March 23, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Event memory in the instrument cluster mileage readings intermittently inaccurate

  Associated Products (29)

  2019 Mercedes-Benz C-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz GLA-Class2019 Mercedes-Benz GLC-Class2019 Mercedes-Benz SLC-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz GLA-Class2018 Mercedes-Benz GLC-Class2018 Mercedes-Benz GLE-Class2018 Mercedes-Benz GLS-Class2018 Mercedes-Benz S-Class2018 Mercedes-Benz SLC-Class2017 Mercedes-Benz C-Class2017 Mercedes-Benz E-Class2017 Mercedes-Benz GLA-Class2017 Mercedes-Benz GLC-Class2017 Mercedes-Benz GLE-Class2017 Mercedes-Benz GLS-Class2017 Mercedes-Benz S-Class+ 9 more
  Associated Documents

  • DownloadMC-10172681-0001.pdf↗
• February 7, 2020•Document ID: 10172683

  Service Bulletin/Repair Instructions
  TIRES; EQUIPMENT:OTHER:LABELS

  Mfr Comm. #:

  P-SC-2020020001

  Date Added:

  March 23, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Information Label on Tire Sealant

  Associated Products (76)

  2020 Mercedes-Benz A-Class2020 Mercedes-Benz AMG GT2020 Mercedes-Benz C-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz CLS-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz EQC-Class2020 Mercedes-Benz G-Class2020 Mercedes-Benz GLA-Class2020 Mercedes-Benz GLB-Class2020 Mercedes-Benz GLC-Class2020 Mercedes-Benz GLE-Class2020 Mercedes-Benz GLS-Class2020 Mercedes-Benz S-Class2020 Mercedes-Benz SLC-Class2020 Mercedes-Benz SL-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz AMG GT2019 Mercedes-Benz B-Class2019 Mercedes-Benz C-Class+ 56 more
  Associated Documents

  • DownloadMC-10172683-0001.pdf↗
• January 13, 2020•Document ID: 10171635

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  LI82.85-P-064727

  Date Added:

  February 24, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  NTG5.5, NTG6: Vehicle positioning inaccurate / implausible, route guidance not possible

  Associated Products (6)

  2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLS-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz B-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLS-Class
  Associated Documents

  • DownloadMC-10171635-0001.pdf↗
• December 5, 2019•Document ID: 10170535

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  SC-2019100022

  Date Added:

  January 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Update Powertrain Control Unit (PTCU) Software

  Associated Products (7)

  2019 Mercedes-Benz AMG GT2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLS-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz G-Class2019 Mercedes-Benz S-Class2019 Mercedes-Benz SLC-Class
  Associated Documents

  • DownloadMC-10170535-0001.pdf↗
• November 21, 2019•Document ID: 10169605

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  SC-2018100001

  Date Added:

  December 23, 2019

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Replace center rear underfloor paneling

  Associated Products (1)

  2019 Mercedes-Benz C-Class
  Associated Documents

  • DownloadMC-10169605-0001.pdf↗
• November 15, 2019•Document ID: 10169591

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  LI07.61-P-070559

  Date Added:

  December 23, 2019

  Manufacturer:

  MERCEDES-BENZ

  Summary

  All MY18/19 AMG Vehicles Equipped with STAR2.3: Engine May Not Automatically Restart

  Associated Products (19)

  2019 Mercedes-Benz AMG GT2019 Mercedes-Benz C-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz G-Class2019 Mercedes-Benz GLC-Class2019 Mercedes-Benz GLE-Class2019 Mercedes-Benz S-Class2019 Mercedes-Benz SLC-Class2019 Mercedes-Benz SL-Class2018 Mercedes-Benz AMG GT2018 Mercedes-Benz C-Class2018 Mercedes-Benz CLA-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz G-Class2018 Mercedes-Benz GLC-Class2018 Mercedes-Benz S-Class2018 Mercedes-Benz SLC-Class2018 Mercedes-Benz SL-Class
  Associated Documents

  • DownloadMC-10169591-0001.pdf↗
• November 14, 2019•Document ID: 10169584

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  P-SC-2019100020

  Date Added:

  December 23, 2019

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Update sound system control unit software

  Associated Products (1)

  2019 Mercedes-Benz C-Class
  Associated Documents

  • DownloadMC-10169584-0001.pdf↗