Vehicle recall R/2023/148

Mercedes-Benz S-Class recall: On affected vehicles the voltage converter software of the secondary on-board electrical system (R/2023/148)

DVSA recall R/2023/148 names the Mercedes-Benz S-Class. It was launched 4 August 2023. It covers vehicles built 6 July 2020 to 27 May 2021.

Recall data updated 22 September 2026

Recall: R/2023/148
Launched: 4 August 2023
Issued by: MERCEDES-BENZ CARS UK LTD
Manufacturer reference: SRPC2310 / 5497104 / 5490207
Vehicles: 363 across the lines below

What can go wrong

On affected vehicles the voltage converter software of the secondary on-board electrical system might not meet specifications.

The fix

Update the voltage converter software of the secondary on-board electrical system via an over-the-air update in accordance with the Mercedes me terms of use or alternatively via its Mercedes-Benz service partners should the over-the-air update not be possible.

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	6 July 2020 to 27 May 2021	363

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/2023/149 On affected vehicles the voltage converter software of the secondary on-board electrical system might not meet specifications. 4 August 2023, Mercedes-Benz S-Class
R/2023/245 On affected vehicles a bolt connection in the engine compartment main fuse box might not meet specifications and the torque of the bolt connection may not be sufficient. 25 August 2023, Mercedes-Benz S-Class
R/2023/173 THE MONITORING SOFTWARE OF THE ELECTRONIC STABILITY PROGRAM (EPS) MIGHT NOT MEET SPECIFICATIONs. 14 July 2023, Mercedes-Benz S-Class
R/2023/223 On affected vehicles the fuel pump impeller might not meet specifications and may deform. 29 August 2023, Mercedes-Benz E-Class, Mercedes-Benz S-Class, Mercedes-Benz C-Class and others
R/2023/259 A 12V ground connection bolt in the boot might not meet specifications 2 October 2023, Mercedes-Benz S-Class
R/2023/120 On affected vehicles the firewall seal may not satisfy leak tightness requirements. Water may enter into the vehicle causing corrosion on electrical contacts function of the PreSafe system may be impaired and it may not be possible to restart a parked vehicle. 28 April 2023, Mercedes-Benz S-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