Mercedes-Benz S Class Recall R/2021/365: To Achieve An Improvement In The Emissions, Who Is Affected And What To Do
- Low
- How serious
- 11 Jan 2022
- Launched
- 1
- vehicles in the UK
- SRPC2144
- Manufacturer’s campaign code
Mercedes-Benz recalled S Class vehicles built between 23 October 2012 and 23 October 2012. Daimler AG has come to an understanding with the (KBA) to achieve an improvement in the emissions. The dealer will update the diesel engine control unit software. You won't usually pay for it.1
What’s Wrong
Daimler AG has come to an understanding with the (KBA) to achieve an improvement in the emissions.
DVSA's Original Wording
Concern: TO ACHIEVE AN IMPROVEMENT IN THE EMISSIONS Defect: Daimler AG has come to an understanding with the (KBA) to achieve an improvement in the emissions. Remedy: Update the diesel engine control unit software.
Contains public sector information licensed under the Open Government Licence v3.0.
The Risk
The recall notice describes the concern as: to achieve an improvement in the emissions.
The Fix
The dealer will update the diesel engine control unit software. The fix is a software update, which usually takes under an hour at the dealer.
Are You Affected?
S Class built between 23 October 2012 and 23 October 2012 may be included. Mercedes-Benz estimates 1 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 SRPC2144 or the DVSA reference R/2021/365. 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 |
|---|---|---|---|
| S ClassWindshield bonding | Low | R/2026/191 | |
| AMG GT, GLC, S Class, SLProcessor Starter/Generator | Urgent | R/2025/124 | |
| AMG GT, C Class, CLE, E Class and 5 moreSystem protection | Low | R/2024/130 | |
| A Class, C Class, CLA(117), GLA and 2 moreOn affected vehicles the panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior service repair | Low | R/2024/024 | |
| S ClassA 12V ground connection bolt in the boot might not meet specifications | Low | R/2023/259 |
This is one of 833 Mercedes-Benz recalls in DVSA’s data. The Mercedes-Benz recall launched before it was R/2021/302 on 11 Jan 2022, for the window air bags might not meet specifications. The one launched after it was R/2021/384 on 11 Jan 2022, for mounting screws of front axle brake callipers might not meet specifications. You can also see every Mercedes-Benz recall and all recalls launched in 2022.
Source: DVSA recall R/2021/365, 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.