TSB: MERCEDES-BENZ AMG CLA35, AMG CLA45, AMG GLA35, AMG GLA45S, AMG GLB35, AMG GLE53, AMG GLE63, AMG GLE63 S, AMG GLS63, AMG GT, AMG GT43, AMG GT53E, AMG GT55, AMG GT63, CLA250, EQB250+, EQB300, EQB350, GLA250, GLB250, GLE350, GLE400E, GLE450, GLE450 E, GLS450, GLS580 (2016–2024)
Bulletin NCU-2024020004 — February 23, 2024
Bulletin Details
| Bulletin ID | NCU-2024020004 |
| Manufacturer | MERCEDES-BENZ |
| Models | AMG CLA35, AMG CLA45, AMG GLA35, AMG GLA45S, AMG GLB35, AMG GLE53, AMG GLE63, AMG GLE63 S, AMG GLS63, AMG GT, AMG GT43, AMG GT53E, AMG GT55, AMG GT63, CLA250, EQB250+, EQB300, EQB350, GLA250, GLB250, GLE350, GLE400E, GLE450, GLE450 E, GLS450, GLS580 |
| Model Years | 2016–2024 |
| Date Issued | February 23, 2024 |
| Date Added to NHTSA | March 4, 2024 |
| Component | ELECTRICAL SYSTEM |
| Vehicles Affected | 26 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
This is to notify you of the Service Campaign Launch to update MBUX Control Unit software in 12,941 Model Year (??A?A?MY??A?A?) 2024-2025 CLA, EQB, GLA, GLB, GLE, GLS, and AMG GT 4-door (118, 243, 247, 167, and 290 platform). The vehicles w
Affected Vehicles
| Make | Model | Year | Component |
|---|---|---|---|
| MERCEDES-BENZ | AMG CLA35 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG CLA45 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GLA35 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GLA45S | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GLB35 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GLE53 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GLE63 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GLE63 S | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GLS63 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GT43 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GT53E | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GT55 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GT63 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | CLA250 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | EQB250+ | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | EQB300 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | EQB350 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | GLA250 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | GLB250 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | GLE350 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | GLE400E | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | GLE450 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | GLE450 E | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | GLS450 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | GLS580 | 2024 | 110000 ELECTRICAL SYSTEM |
| MERCEDES-BENZ | AMG GT | 2016 | 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-2024020004) 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.