Vehicle recall R/2021/309

Mercedes-Benz S-Class recall: The communications module might not meet specifications

DVSA recall R/2021/309 names the Mercedes-Benz S-Class. It was launched 20 September 2021. It covers vehicles built 20 June 2020 to 2 July 2021.

Recall data updated 22 September 2026

Recall: R/2021/309
Launched: 20 September 2021
Issued by: MERCEDES-BENZ CARS UK LTD
Manufacturer reference: SRPC2145
Vehicles: 339 across the lines below

What can go wrong

The communication module might not meet specifications.

The fix

Update the software including a correct configuration of the communication module on the affected vehicles.

Models and build dates

As listed in the DVSA recall file. Vehicle numbers are DVSA figures for each line.
Model	Built	Vehicles
Mercedes-Benz S-Class	20 June 2020 to 2 July 2021	339

Is a specific car affected? A recall lists models and build dates, not individual vehicles, so these pages cannot tell you whether one car is included. Enter the registration on the DVSA vehicle recall checker on GOV.UK, or give the vehicle identification number (VIN) to the manufacturer or one of its dealers. Buying used? Ask the seller for proof that any recall work was done.

Other recalls for these models

R/2021/308 The communication module might not meet specifications 20 September 2021, Mercedes-Benz S-Class
R/2021/280 The bolting of the 48v wiring harness on a body sided support point might not meet specifications 20 August 2021, Mercedes-Benz S-Class
R/2021/274 Vehicles with a panoramic sunroofthe polycarbonate panel may not have been bonded correctly during a prior service repair 20 August 2021, Mercedes-Benz C-Class, Mercedes-Benz GLC, Mercedes-Benz GLA and others
R/2021/340 A nozzle inside the suction jet pump in the fuel tank might not have been installed or fixed inside the pump according to specifications 5 November 2021, Mercedes-Benz S-Class, Mercedes-Benz C-Class
R/2021/379 The software of the air bag control unit might not meet specifications 19 November 2021, Mercedes-Benz S-Class
R/2021/382 The fuel level might not be displayed correctly 26 November 2021, Mercedes-Benz S-Class

Found one you might buy?

A recall is one part of the picture. See how often it fails its MOT at each age, or what the VetTheCar Buying Report tells you about a specific car.

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Source

Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA vehicle recall records (RecallsFile.csv), recalls launched 1992 to 2026. Recall data updated 22 September 2026.

Recall wording is DVSA's, with capitals and punctuation tidied and American spellings such as tire, center and windshield given in British English. We list a recall when its make and model match a car or van family with at least 1,000 DVSA MOT tests from 2022 to 2025, and when the maker of the vehicle issued it.

Not affiliated with or endorsed by DVSA. Methodology · Data sources