Vehicle recall R/2020/277

Mercedes-Benz B-Class and others recall: An electrical contact inside the engine control unit may not meet the specification

DVSA recall R/2020/277 names the Mercedes-Benz B-Class, Mercedes-Benz A-Class, Mercedes-Benz GLC and Mercedes-Benz CLA. It was launched 27 October 2020. It covers vehicles built 11 December 2019 to 9 January 2020.

Recall data updated 22 September 2026

Recall: R/2020/277
Launched: 27 October 2020
Issued by: MERCEDES-BENZ CARS UK LTD
Manufacturer reference: SRPC2033
Vehicles: DVSA lists 37 on each model line

What can go wrong

An electrical contacting inside the engine control unit might not meet the specification

The fix

Replace the engine control unit on the affected vehicles

Models and build dates

As listed in the DVSA recall file. DVSA lists the same vehicle number on each line: 37. It may be a figure per line or for the whole recall.
Model	Built	Vehicles
Mercedes-Benz A-Class	11 December 2019 to 9 January 2020	37
Mercedes-Benz B-Class	11 December 2019 to 9 January 2020	37
Mercedes-Benz CLA	11 December 2019 to 9 January 2020	37
Mercedes-Benz GLC	11 December 2019 to 9 January 2020	37

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/2020/237 VEHICLES MAY BE FILLED WITH THE REFRIGERANT R-134a INSTEAD OF R-1234yf 13 October 2020, Mercedes-Benz CLA, Mercedes-Benz A-Class
R/2020/262 The oil supply line of the turbocharger may leak 12 October 2020, Mercedes-Benz GLB, Mercedes-Benz GLA, Mercedes-Benz CLA and others
R/2020/239 The software of the ESP control unit may not meet the specifications 9 October 2020, Mercedes-Benz GLC, Mercedes-Benz C-Class, Mercedes-Benz AMG GT
R/2020/236 THE EMERGENCY CALL SYSTEM (eCall) DOES NOT MEET THE SPECIFICATION 6 October 2020, Mercedes-Benz E-Class, Mercedes-Benz G-Class, Mercedes-Benz C-Class and others
R/2020/243 Engine control unit software to be updated 6 October 2020, Mercedes-Benz E-Class, Mercedes-Benz S-Class, Mercedes-Benz GLS and others
R/2020/221 The air conditioning drain hose may be incorrectly installed 30 September 2020, Mercedes-Benz A-Class

Found one you might buy?

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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