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 ID | NCU-OTA Comm Mod |
| Manufacturer | MERCEDES-BENZ |
| Models | 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 |
| Model Years | 2019–2023 |
| Date Issued | January 29, 2024 |
| Date Added to NHTSA | February 1, 2024 |
| Component | ELECTRICAL SYSTEM |
| Vehicles Affected | 159 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
| Make | Model | Year | Component |
|---|---|---|---|
| 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
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.