Used Mercedes ECUs & Modules ⁽⁷⁷⁾

Genuine used Mercedes ECUs and modules removed from cars we dismantled ourselves in Doncaster. Every ECU comes from a known donor vehicle, so you can see which car it came off, the mileage and the registration before you buy, and the photos show the exact item you will receive.

Mercedes ECUs and modules in stock now: Mercedes E-Class W212 (19 in stock, 2009 to 2016); Mercedes B-Class W245 (13 in stock, 2005 to 2011); Mercedes CLS X218 (12 in stock, 2011 to 2018); Mercedes ML W164 (10 in stock, 2009 to 2011); Mercedes B-Class W246 (10 in stock, 2005 to 2018); Mercedes R-Class W251 (7 in stock, 2006 to 2013). Stock changes as cars come in, so if the model you need is not listed, message us with your registration.

What we check on a used Mercedes ECU

Engine ECUs, body modules, gateway units and control modules, all photographed so the part number and hardware version are readable. Engine ECUs, immobiliser units and key sets are matched to the donor car and may need coding or a matched set to run; the listing tells you which. If you are not sure, message us the part number from your own unit and we will check.

Will it fit my Mercedes?

Every part is guaranteed to fit the donor vehicle shown on its listing. Add your registration to My Garage and each ECU on this page shows a fits or does not fit verdict for your car. Where a manufacturer part number is shown, match it to the number on your own part for other models and years.

Tracked UK delivery, 30-day returns and a trade discount for garages and bodyshops. Browse all used Mercedes parts, everything in Electrical & Electronics, or collect from us in Doncaster.