TSB: MERCEDES BENZ A220, AMG A35, AMG A45, AMG CLA35, AMG CLA45, AMG CLS53, AMG E43, AMG E53, AMG E53 S, AMG E63, AMG E63S, AMG GLC43, AMG GLC63, AMG GLC63 S, B180, B200, B220, CLA, CLA250, CLS450, E300, E350, E350E, E400, E43 AMG, E450, E550, E63, E63 AMG, E63S, GLC, GLC300, GLC350, GLC350E, GLC63, GLC63S AMG (2016–2022)

Bulletin LI8285P073418 — August 24, 2021

Bulletin Details

Bulletin IDLI8285P073418
ManufacturerMERCEDES BENZ
ModelsA220, AMG A35, AMG A45, AMG CLA35, AMG CLA45, AMG CLS53, AMG E43, AMG E53, AMG E53 S, AMG E63, AMG E63S, AMG GLC43, AMG GLC63, AMG GLC63 S, B180, B200, B220, CLA, CLA250, CLS450, E300, E350, E350E, E400, E43 AMG, E450, E550, E63, E63 AMG, E63S, GLC, GLC300, GLC350, GLC350E, GLC63, GLC63S AMG
Model Years2016–2022
Date IssuedAugust 24, 2021
Date Added to NHTSAJanuary 3, 2022
ComponentELECTRICAL SYSTEM
Vehicles Affected98 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

On vehicles with code 077 HERMES dummy module the following functions are restricted, unavailable.

Affected Vehicles

MakeModelYearComponent
MERCEDES-BENZ A220 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLA35 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLA45 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63S 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 S 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLA 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLS450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ A220 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG A35 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLA35 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLA45 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLS53 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 S 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63S 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 S 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLA250 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLS450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E350 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E350E 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC350E 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ A220 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG A35 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG A45 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLA35 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLA45 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLS53 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63S 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 S 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLA250 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLS450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E350 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E63 AMG 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC350 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC350E 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC63 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ A220 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLS53 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63S 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ B180 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ B200 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ B220 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLS450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E300 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E63S 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC350 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC350E 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC63S AMG 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E43 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E63S 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E300 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E400 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E43 AMG 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E63S 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC350 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC350E 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC63 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC63S AMG 2018 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E43 2017 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2017 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E300 2017 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E350 2017 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E400 2017 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E550 2017 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC 2017 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2017 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2016 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC 2016 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2016 110000 ELECTRICAL SYSTEM

Related MERCEDES BENZ Recalls

CampaignModelYearComponentSummary
GLS 450 4MATIC 2026 AIR BAGS:PASSENGER SIDE FRONTAL:CUSHION Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2026 GLE 350 4MATIC, GLE ...
GLE 580 4MATIC 2026 AIR BAGS:PASSENGER SIDE FRONTAL:CUSHION Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2026 GLE 350 4MATIC, GLE ...
AMG GLS63 4MATIC 2026 AIR BAGS:PASSENGER SIDE FRONTAL:CUSHION Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2026 GLE 350 4MATIC, GLE ...
AMG GLE63 S 4MATIC 2026 AIR BAGS:PASSENGER SIDE FRONTAL:CUSHION Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2026 GLE 350 4MATIC, GLE ...
GLE 450E 4MATIC 2026 AIR BAGS:PASSENGER SIDE FRONTAL:CUSHION Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2026 GLE 350 4MATIC, GLE ...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized MERCEDES BENZ dealer. Bring this bulletin ID (LI8285P073418) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.