Mercedes-Benz A Class (177) Recall R/2021/401: The Corrosion Protection Of The High Voltage Battery Housing Might Not Be Ensured Over The…, Who Is Affected And What To Do
- Urgent
- How serious
- 11 Jan 2022
- Launched
- 2
- vehicles in the UK
- SRPC2151
- Manufacturer’s campaign code
Mercedes-Benz recalled A Class (177) vehicles built between 4 June 2019 and 6 June 2019. The corrosion protection of the high-voltage battery housing might not be ensured over the lifetime of the vehicle. The dealer will check the high-voltage battery of the affected vehicles and if necessary carry out rework measures. You won't usually pay for it.1
What’s Wrong
The corrosion protection of the high-voltage battery housing might not be ensured over the lifetime of the vehicle.
DVSA's Original Wording
Concern: THE CORROSION PROTECTION OF THE HIGH VOLTAGE BATTERY HOUSING MIGHT NOT BE ENSURED OVER THE LIFETIME OF THE VEHICLE Defect: On certain vehicles the corrosion protection of the high-voltage battery housing might not be ensured over the lifetime of the vehicle. Remedy: Check the high-voltage battery of the affected vehicles and if necessary carry out rework measures.
Contains public sector information licensed under the Open Government Licence v3.0.
The Risk
The recall notice describes the concern as: the corrosion protection of the high voltage battery housing might not be ensured over the lifetime of the vehicle.
The Fix
The dealer will check the high-voltage battery of the affected vehicles and if necessary carry out rework measures.
Are You Affected?
A Class (177) built between 4 June 2019 and 6 June 2019 may be included. Mercedes-Benz estimates 2 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 SRPC2151 or the DVSA reference R/2021/401. 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 |
|---|---|---|---|
| A Class (177), A CLASS(176), AMG GT, B Class (246) and 20 moreThe behaviour of the emergency call system might not meet specifications | Book soon | R/2021/376 | |
| A Class (177), CLA(118)The bolting of a side crash sensor might not meet specifications | Low | R/2021/246 | |
| A Class, A Class (177), AMG GT, B Class (246) and 16 moreThe behaviour of the emergency call system might not meet specifications | Book soon | R/2021/110 | |
| A Class (177)The behaviour of the emergency call system might not meet specifications | Book soon | R/2021/119 | |
| A Class (177), A CLASS(176), AMG GT, B Class (246) and 20 moreThe behaviour of the emergency call system might not meet specifications | Book soon | R/2021/120 |
This is one of 833 Mercedes-Benz recalls in DVSA’s data. The Mercedes-Benz recall launched before it was R/2021/384 on 11 Jan 2022, for mounting screws of front axle brake callipers might not meet specifications. The one launched after it was R/2021/434 on 12 Jan 2022, for the configuration of the mbux system might not meet specifications. You can also see every Mercedes-Benz recall, all recalls launched in 2022 and high-voltage battery recalls across every make.
Source: DVSA recall R/2021/401, launched 11 January 2022. 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.