Mercedes-Benz electrical line that supplies power to the engine coolant pump may contact the engine fan and chafe, possibly causing a malfunction of the coolant pump or a deactivation of the 48V on-board electrical system.
The short version
Mercedes-Benz USA, LLC. reported a problem with the electrical system wiring. Here is what owners need to know.
The electrical line that supplies power to the engine coolant pump may contact the engine fan and chafe, possibly causing a malfunction of the coolant pump or a deactivation of the 48V on-board electrical system.
A malfunctioning engine coolant pump can increase coolant temperatures, possibly leading to an engine stall. Deactivation of the 48V on-board electrical system can cause the vehicle to not restart after using the ECO start/stop function or "Glide" mode.
MBUSA will notify owners, and dealers will inspect the coolant pump electrical line for damage, repairing it and rerouting it as necessary, free of charge.
Affected vehicles
These model years are included in NHTSA campaign 19V-605.
| YEAR RANGE | MODEL |
|---|---|
| 2019 | Mercedes-Benz CLS-Class |
What changed
Newest first. The record shows both when the recall began and what has changed since.
- Recall reported to NHTSA. LATEST
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Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.
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