Mercedes-Benz C Class, E Class, GLC And 1 More Recall R/2020/334: The High Voltage Wiring Harness Shield May Not Permanently Withstand The Electrical Loads…, Who Is Affected And What To Do
- Urgent
- How serious
- 2 Dec 2020
- Launched
- 2,377
- vehicles in the UK
- SRPC2036
- Manufacturer’s campaign code
Mercedes-Benz recalled C Class, E Class, GLC and 1 more vehicles built between 15 January 2018 and 29 February 2020. The shield for the high-voltage wiring harness may not permanently withstand the electrical loads that are induced under certain driving profiles. The dealer will replace the high-voltage wiring harness on the affected vehicles. You won't usually pay for it.1
What’s Wrong
The shield for the high-voltage wiring harness may not permanently withstand the electrical loads that are induced under certain driving profiles.
DVSA's Original Wording
Concern: THE HIGH VOLTAGE WIRING HARNESS SHIELD MAY NOT PERMANENTLY WITHSTAND THE ELECTRICAL LOADS THAT ARE INDUCED UNDER CERTAIN DRIVING PROFILES Defect: The shield for the high-voltage wiring harness may not permanently withstand the electrical loads that are induced under certain driving profiles Remedy: Replace the high-voltage wiring harness on the affected vehicles
Contains public sector information licensed under the Open Government Licence v3.0.
The Risk
The recall notice describes the concern as: the high voltage wiring harness shield may not permanently withstand the electrical loads that are induced under certain driving profiles.
The Fix
The dealer will replace the high-voltage wiring harness on the affected vehicles.
Are You Affected?
C Class, E Class, GLC and 1 more built between 15 January 2018 and 29 February 2020 may be included. Mercedes-Benz estimates 2,377 vehicles in the UK. Enter your registration to check, then confirm by VIN with Mercedes-Benz, because not every car in the date range may be included.
Which Car Is It?
Choose the make and model so we can match recalls to your car.
What To Do Now
- Check your car by registration above, then by VIN with Mercedes-Benz.
- Book with any franchised Mercedes-Benz dealer, quoting the campaign code SRPC2036 or the DVSA reference R/2020/334. See how to get a Mercedes-Benz recall fixed.
- Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
Related Recalls
| Launched | Vehicle and fault | Severity | Reference |
|---|---|---|---|
| CLS, E Class, GLCDrive shaft joint | Low | R/2026/148 | |
| E ClassCoolant pump control software | Low | R/2026/201 | |
| E ClassRouting of transmission wiring harness | Book soon | R/2025/534 | |
| C Class, EQE, GLCBolting of steering coupling | Urgent | R/2025/333 | |
| GLCMounting of Multi-Purpose camera & interior mirror | Book soon | R/2025/216 |
This is one of 833 Mercedes-Benz recalls in DVSA’s data. The Mercedes-Benz recall launched before it was R/2020/333 on 2 Dec 2020, for the wiring harness of the steering control unit may not have been manufactured to…. The one launched after it was R/2020/339 on 4 Dec 2020, for the oil level in the dual clutch transmission might noot meet specifications. You can also see every Mercedes-Benz recall, the Mercedes-Benz C Class recall history, all recalls launched in 2020 and high-voltage battery recalls across every make.
Source: DVSA recall R/2020/334, launched 2 December 2020. Data updated 15 October 2026. How we grade urgency.
Sources
- The Code does not itself say repairs are free. GOV.UK guidance says "You will not usually have to pay for any repairs or parts under a safety recall." gov.uk Checked 15 Oct 2026.