Mercedes-Benz CLA-Class Service Bulletins (2020)

321 manufacturer communications on file.

• November 12, 2020•Document ID: 10186133

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI35.31-P-072106

  Date Added:

  February 1, 2021

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Fault code for short circuit to ground stored in AW- D_MFA2 - N15/17 - all-wheel drive (transfer case)

  Associated Products (9)

  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 CLA-Class2019 Mercedes-Benz GLA-Class
  Associated Documents

  • DownloadMC-10186133-0001.pdf↗
• August 28, 2020•Document ID: 10179976

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS

  Mfr Comm. #:

  NCU-2020080023

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that certain MY 2019-2021 A-Class (177 platform), CLA-Class (118 platform), GLA-Class (247 platform), and GLB-Class (247 platform) vehicles might not be equipped with a means to check the wear status of the brake pads on the rear axle. Furthermore, information regarding the brake gauge and its operation might not be included in the owner's manual.

  Associated Products (9)

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

  • DownloadMC-10179976-0001.pdf↗
• August 28, 2020•Document ID: 10179904

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI00.20-P-070791

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Implausible "service due" instrument cluster message, head unit pop-up, or Mmc message

  Associated Products (17)

  2021 Mercedes-Benz CLA-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class2020 Mercedes-Benz GLE-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz CLA-Class2018 Mercedes-Benz CLA-Class2018 Mercedes-Benz GLE-Class2017 Mercedes-Benz CLA-Class2017 Mercedes-Benz GLE-Class2016 Mercedes-Benz CLA-Class2016 Mercedes-Benz GLE-Class2015 Mercedes-Benz CLA-Class2014 Mercedes-Benz CLA-Class2013 Mercedes-Benz CLA-Class2012 Mercedes-Benz CLA-Class
  Associated Documents

  • DownloadMC-10179904-0001.pdf↗
• August 10, 2020•Document ID: 10179961

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

  Mfr Comm. #:

  LI82.70-P-071372

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mobile phone Apple iPhone 11/11Pro/11ProMax/SE 2020: The Bluetooth connection between the MBUX multimedia system and the mobile phone is briefly lost

  Associated Products (13)

  2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLE-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class2020 Mercedes-Benz GLC-Class2020 Mercedes-Benz GLE-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz GLC-Class2019 Mercedes-Benz GLE-Class2018 Mercedes-Benz GLC-Class2017 Mercedes-Benz GLC-Class2016 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-10179961-0001.pdf↗
• August 10, 2020•Document ID: 10179956

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER

  Mfr Comm. #:

  LI54.10-P-071499

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Xentry Battery Tester results disagree with workshop assessment

  Associated Products (26)

  2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLE-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz CLS-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz GLC-Class2020 Mercedes-Benz GLE-Class2020 Mercedes-Benz S-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz B-Class2019 Mercedes-Benz CLS-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz GLC-Class2019 Mercedes-Benz GLE-Class2019 Mercedes-Benz S-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz GLC-Class2018 Mercedes-Benz S-Class2017 Mercedes-Benz E-Class+ 6 more
  Associated Documents

  • DownloadMC-10179956-0001.pdf↗
• August 3, 2020•Document ID: 10179907

  Service Bulletin/Repair Instructions
  LANE DEPARTURE

  Mfr Comm. #:

  LI20.10-P-060902

  Date Added:

  September 21, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Engine diagnosis warning lamp activated - Fault code P012800

  Associated Products (31)

  2021 Mercedes-Benz CLA-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz EQC-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz GLA-Class2018 Mercedes-Benz B-Class2018 Mercedes-Benz CLA-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz GLA-Class2017 Mercedes-Benz B-Class2017 Mercedes-Benz CLA-Class2017 Mercedes-Benz E-Class2017 Mercedes-Benz GLA-Class2016 Mercedes-Benz B-Class2016 Mercedes-Benz CLA-Class2016 Mercedes-Benz E-Class2016 Mercedes-Benz GLA-Class2015 Mercedes-Benz B-Class+ 11 more
  Associated Documents

  • DownloadMC-10179907-0001.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 23, 2020•Document ID: 10178737

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  LI82.85-P-071529

  Date Added:

  August 24, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  MBUX multimedia system: "Favorites" and "Recent destinations" not available

  Associated Products (9)

  2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class2020 Mercedes-Benz GLC-Class2019 Mercedes-Benz CLA-Class2019 Mercedes-Benz GLC-Class2018 Mercedes-Benz CLA-Class2018 Mercedes-Benz GLC-Class2017 Mercedes-Benz CLA-Class2017 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-10178737-0001.pdf↗
• July 23, 2020•Document ID: 10178736

  Service Bulletin/Repair Instructions
  VISIBILITY:SUN/MOON ROOF ASSEMBLY

  Mfr Comm. #:

  LI68.69-P-071522

  Date Added:

  August 24, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Rollerblind or panoramic roof do not actuate as expected

  Associated Products (4)

  2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz CLA-Class
  Associated Documents

  • DownloadMC-10178736-0001.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 17, 2020•Document ID: 10178744

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  NCU-2020060021

  Date Added:

  August 24, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  The operator's manual for the above vehicles does not comply with current specifications. "Daimler AG" may be documented as the manufacturer in the operator's manual. The new manufacturer is "Mercedes-Benz AG." We thus ask that you place the supplementary booklet into the vehicle. The work required for this purpose can be found in the attached work description.

  Associated Products (3)

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

  • DownloadMC-10178744-0001.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↗
• July 1, 2020•Document ID: 10178711

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, OTHER; ELECTRICAL SYSTEM:SOFTWARE

  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 (3)

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

  • DownloadMC-10178711-0001.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↗
• June 30, 2020•Document ID: 10177569

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

  Mfr Comm. #:

  LI82.85-P-071394

  Date Added:

  July 27, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17). Internal hard drive defect. Replacement of internal hard drive. The MBUX multimedia system (A26/17) hard drive is now available separately as a replacement part.

  Associated Products (5)

  2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class2020 Mercedes-Benz GLC-Class2020 Mercedes-Benz GLE-Class
  Associated Documents

  • DownloadMC-10177569-0001.pdf↗
• June 29, 2020•Document ID: 10177568

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

  Mfr Comm. #:

  LI54.30-P-070030

  Date Added:

  July 27, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  After starting the engine, the instrument cluster display (A40/16) may show "4MATIC inoperative" erroneously.Notes: Vehicles not equipped with 4MATIC are predominantly affected. However, in some circumstances a 4MATIC vehicle can also display this message. Previous software release of the instrument cluster control unit (N133/1) Ensure that no complaints exist regarding the 4MATIC system. If no other complaints exist, perform a software update of the instrument cluster control unit (N133/1).

  Associated Products (3)

  2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class
  Associated Documents

  • DownloadMC-10177568-0001.pdf↗
• June 29, 2020•Document ID: 10177567

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

  Mfr Comm. #:

  LI27.00-P-071367

  Date Added:

  July 27, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  When leaving gliding mode, the transmission can shift to neutral by itself. The complaint only occurs in drive program E. Check software release of transmission control unit and perform a software update.

  Associated Products (3)

  2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class
  Associated Documents

  • DownloadMC-10177567-0001.pdf↗
• June 26, 2020•Document ID: 10177566

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

  Mfr Comm. #:

  LI47.50-P-070263

  Date Added:

  July 27, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Check engine light active and FC P146264 Temp. and pressure sensor B4/7 is stored in engine control unit and tank control unit. Software parameter in Fuel pump control unit. Update SW in FSCU control unit.

  Associated Products (4)

  2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class2020 Mercedes-Benz GLE-Class
  Associated Documents

  • DownloadMC-10177566-0001.pdf↗
• June 25, 2020•Document ID: 10177565

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  LI82.70-P-071024

  Date Added:

  July 27, 2020

  Manufacturer:

  MERCEDES-BENZ

  Summary

  The mobile phone address book is not transferred completely to the multimedia system (COMAND or MBUX). In some cases, the call list shows just the telephone numbers but no names. The problem only occurs in conjunction with the iPhone and software version iOS 13.x.

  Associated Products (18)

  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 Metris2020 Mercedes-Benz S-Class2020 Mercedes-Benz SLC-Class2020 Mercedes-Benz SL-Class2020 Mercedes-Benz Sprinter
  Associated Documents

  • DownloadMC-10177565-0001.pdf↗