Technical Service Bulletin LI83.20-P-079911 — 2026 MERCEDES-BENZ CLA 350 4MATIC (EV)
VISIBILITY/WIPER
Bulletin Details
| TSB ID | LI83.20-P-079911 |
| Manufacturer | |
| Vehicle | 2026 MERCEDES-BENZ CLA 350 4MATIC (EV) |
| Component | VISIBILITY/WIPER |
| Communication Date |
Bulletin Summary
Complaint High-frequency cheeping or ticking when heating is requested in the instrument panel area. Cause Variable switching frequencies in the high-voltage on-board electrical system can cause vibrations that lead to noise complaints on the HV-PTC N33/16 (air heater). Remedy Note: Replacing the hardware does not solve the problem at present! Modified hardware for the HV-PTC (air heater) will be available from the beginning of 2026.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2026 MERCEDES-BENZ CLA 350 4MATIC (EV)
LI54.30-P-080136
ELECTRICAL SYSTEM