Mercedes-Benz recall: Coolant pump might have a leakage between the vacuum system and the coolant circuit
Yes – some of these vehicles are being recalled
- What's wrong
- On certain vehicles with a Diesel engine the coolant pump which is controlled by vacuum might have a leakage between the vacuum system and the coolant circuit.
- What to do
- Contact a Mercedes-Benz dealer to book the free repair. Update the software of the coolant pump and replace the electrical switch valve on the affected vehicles.
Source: Driver and Vehicle Standards Agency (DVSA)
Check your reg on DVSA ↗
What’s wrong
On certain vehicles with a Diesel engine the coolant pump which is controlled by vacuum might have a leakage between the vacuum system and the coolant circuit.
The fix
Update the software of the coolant pump and replace the electrical switch valve on the affected vehicles.
Vehicles affected
| Model | Built from | Built to | Vehicles |
|---|---|---|---|
| E-class | 4 Apr 2017 | 12 Oct 2021 | 35,624 |
| CLS | 4 Apr 2017 | 12 Oct 2021 | 35,624 |
| S-class | 4 Apr 2017 | 12 Oct 2021 | 35,624 |
| GLC | 4 Apr 2017 | 12 Oct 2021 | 35,624 |
| E-class Coupe/convertible | 4 Apr 2017 | 12 Oct 2021 | 35,624 |
| C-class | 4 Apr 2017 | 12 Oct 2021 | 35,624 |
| G Class | 4 Apr 2017 | 12 Oct 2021 | 35,624 |
| GLE/GLS(167) | 4 Apr 2017 | 12 Oct 2021 | 35,624 |
| E-class | – | – | 35,624 |
How to check your vehicle
Use the official DVSA checker with your registration number to see if your exact vehicle is included. If it is, the manufacturer should have written to the registered keeper. The repair is free, even if you bought the vehicle second-hand.
Updated 21 January 2022. This page summarises an official notice. Details can change – always follow the official notice.