Vehicle recall R/2021/241

Mercedes-Benz C-Class recall: Diodes on the rectifier bridge of the alternator might fail

DVSA recall R/2021/241 names the Mercedes-Benz C-Class. It was launched 27 July 2021. It covers vehicles built 20 March 2014 to 28 February 2018.

Recall data updated 22 September 2026

Recall: R/2021/241
Launched: 27 July 2021
Issued by: MERCEDES-BENZ CARS UK LTD
Manufacturer reference: SRPC2044
Vehicles: 18,050 across the lines below

What can go wrong

Diodes on the rectifier bridge of the alternator might fail.

The fix

Update the engine control unit software with an optimised alternator control strategy 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 C-Class	20 March 2014 to 28 February 2018	18,050

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/2021/223 The fixation of the rear headrests might not meet specifications 20 July 2021, Mercedes-Benz C-Class, Mercedes-Benz E-Class
R/2021/249 The bolting of the high voltage battery to the vehicle body in the luggage compartment might not meet specifications 16 July 2021, Mercedes-Benz C-Class
R/2021/277 The driver's air bag may have a chemical change to its propellant over time 17 August 2021, Mercedes-Benz A-Class, Mercedes-Benz R-Class, Mercedes-Benz C-Class and others
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/2021/304 The belt tensioner arm may have been manufactured with borderline tolerance 23 September 2021, Mercedes-Benz C-Class, Mercedes-Benz E-Class, Mercedes-Benz GLE and others
R/2021/145 The bonding between the glass panel and the sliding roof frame might not meet specifications 28 May 2021, Mercedes-Benz E-Class, Mercedes-Benz C-Class, Mercedes-Benz CLK and others

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