Mercedes Benz recall: Faulty control unit may cause vehicle to perform outside specification
Yes – some of these vehicles are being recalled
- What's wrong
- Where a control unit coding was updated in a workshop between 3 December 2016 and 5 December 2016 the coding may not correspond to the specification and may trigger unplanned action in the vehicle. The safety and emissions systems may not react as design intent.
- What to do
- Contact a Mercedes Benz dealer to book the free repair. Recall the vehicles that are likely to be affected and update the software in the corresponding control units.
Source: Driver and Vehicle Standards Agency (DVSA)
Check your reg on DVSA ↗
What’s wrong
Where a control unit coding was updated in a workshop between 3 December 2016 and 5 December 2016 the coding may not correspond to the specification and may trigger unplanned action in the vehicle. The safety and emissions systems may not react as design intent.
The fix
Recall the vehicles that are likely to be affected and update the software in the corresponding control units.
Vehicles affected
| Model | Built from | Built to | Vehicles |
|---|---|---|---|
| E-class | 1 Jan 2004 | 31 Mar 2017 | 42 |
| M Class | 1 Jan 2004 | 31 Mar 2017 | 42 |
| C-class | 1 Jan 2004 | 31 Mar 2017 | 42 |
| CLA | 1 Jan 2004 | 31 Mar 2017 | 42 |
| Cl Class | 1 Jan 2004 | 31 Mar 2017 | 42 |
| GLA | 1 Jan 2004 | 31 Mar 2017 | 42 |
| CLS | 1 Jan 2004 | 31 Mar 2017 | 42 |
| S Class | 1 Jan 2004 | 31 Mar 2017 | 42 |
| SLK | 1 Jan 2004 | 31 Mar 2017 | 42 |
| GLC | 1 Jan 2004 | 31 Mar 2017 | 42 |
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 19 April 2017. This page summarises an official notice. Details can change – always follow the official notice.