TSB: MERCEDES-BENZ A220, AMG A35, AMG A45, AMG CLA35, AMG CLA45, AMG E53, AMG G63, AMG GLA35, AMG GLA45, AMG GLA45 S, AMG GLB35, AMG GLC43, AMG GLC63, AMG GLC63 S, AMG GLE43, AMG GLE53, AMG GLE63, AMG GLE63 S, AMG GLS63, AMG GLS63E, AMG S63, CLA250, E450, G550, G63, GLA250, GLB200, GLB250, GLC300, GLC350, GLC350E, GLC63, GLC63S AMG, GLE 550E, GLE350, GLE350 E, GLE350E, GLE400, GLE400E, GLE450, GLE580, GLS450, GLS550, GLS580, GLS600, MAYBACH GLS600, S450, S550, S560, S560E, S65 AMG, S650 (2019–2023)

Bulletin NCU-OTA Comm Mod — January 29, 2024

Bulletin Details

Bulletin IDNCU-OTA Comm Mod
ManufacturerMERCEDES-BENZ
ModelsA220, AMG A35, AMG A45, AMG CLA35, AMG CLA45, AMG E53, AMG G63, AMG GLA35, AMG GLA45, AMG GLA45 S, AMG GLB35, AMG GLC43, AMG GLC63, AMG GLC63 S, AMG GLE43, AMG GLE53, AMG GLE63, AMG GLE63 S, AMG GLS63, AMG GLS63E, AMG S63, CLA250, E450, G550, G63, GLA250, GLB200, GLB250, GLC300, GLC350, GLC350E, GLC63, GLC63S AMG, GLE 550E, GLE350, GLE350 E, GLE350E, GLE400, GLE400E, GLE450, GLE580, GLS450, GLS550, GLS580, GLS600, MAYBACH GLS600, S450, S550, S560, S560E, S65 AMG, S650
Model Years2019–2023
Date IssuedJanuary 29, 2024
Date Added to NHTSAFebruary 1, 2024
ComponentELECTRICAL SYSTEM
Vehicles Affected159 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

Mercedes-Benz AG (??A?A?MBAG??A?A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2019-2023 A-Class, CLA, E-Class, G-Class, GLA, GLB, GLC, GLE, GLS, and S-Class (177, 118, 238, 463, 247, 253, 167, and 222 pl

Affected Vehicles

MakeModelYearComponent
MERCEDES-BENZ AMG CLA35 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLA45 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG G63 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA35 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA45 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLB35 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE53 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE63 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE63 S 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLS63 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLS63E 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLA250 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ G550 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLA250 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLB250 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE350 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE450 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE580 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS580 2023 110000 ELECTRICAL SYSTEM
MERCEDES-MAYBACH GLS600 2023 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS600 2023 110000 ELECTRICAL SYSTEM
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 G63 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA35 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA45 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLB35 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 AMG GLE53 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE63 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE63 S 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLS63 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLA250 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ G550 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLA250 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLB250 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE350 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE350 E 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE580 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2022 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS580 2022 110000 ELECTRICAL SYSTEM
MERCEDES-MAYBACH GLS600 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 E53 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG G63 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA35 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA45 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA45 S 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLB35 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 AMG GLE43 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE53 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE63 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE63 S 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLS63 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLA250 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ G550 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLA250 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLB250 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC300 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLC350E 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE350 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE350E 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE400E 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE580 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS580 2021 110000 ELECTRICAL SYSTEM
MERCEDES-MAYBACH GLS600 2021 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ MAYBACH GLS600 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 E53 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG G63 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA45 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLB35 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 AMG GLE43 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE63 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLS63 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG S63 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLA250 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ G550 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ G63 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLA250 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLB200 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLB250 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 GLE350 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE350 E 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE580 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS580 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S450 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S550 2020 110000 ELECTRICAL SYSTEM
MERCEDES-MAYBACH S560 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S560E 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S65 AMG 2020 110000 ELECTRICAL SYSTEM
MERCEDES-MAYBACH S650 2020 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ A220 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG CLA45 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG E53 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG G63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLA45 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC43 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLC63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE43 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLE63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG GLS63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ AMG S63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ CLA250 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ E450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ G550 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ G63 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLA250 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 GLE 550E 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE350 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLE400 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ GLS550 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S450 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S550 2019 110000 ELECTRICAL SYSTEM
MERCEDES-MAYBACH S560 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S560E 2019 110000 ELECTRICAL SYSTEM
MERCEDES-BENZ S65 AMG 2019 110000 ELECTRICAL SYSTEM
MERCEDES-MAYBACH S650 2019 110000 ELECTRICAL SYSTEM

Related MERCEDES-BENZ Recalls

CampaignModelYearComponentSummary
GLC 300 2026 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...
E 450 4MATIC 2026 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...
AMG GT43 2026 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...
AMG GLC63 S E 4MATIC+ COUPE 2026 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...
E 450 4MATIC 2024 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2024-2026 AMG GT, C-Class...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized MERCEDES-BENZ dealer. Bring this bulletin ID (NCU-OTA Comm Mod) 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.