Service, Repairs & MOT

ECU repair for your Mercedes

Book a local RAC Approved Garage that you can trust.

  • 12-months parts guarantee
  • Honest pricing
  • Exceptional customer service

Why choose the RAC for an ECU repair?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running. We'll give you results you can rely on at a price you can afford.

Close up of an RAC Mobile Mechanic underneath a car

Book an ECU repair

The Engine Control Unit (ECU) is the brain of your vehicle and works to keep it running smoothly. If it's acting up, it can mean poor performance, increased fuel consumption, or trouble starting your car.

Any work done will meet the high standards set by the RAC.
We’re friendly, straightforward and jargon-free

Book a diagnostic

A mechanic will check your car for faults and talk you through any repairs you might need. There are various ways to check for faults, which could include a physical examination or plugging in to check your car’s onboard engine management system.

We’ll look for any mechanical or electrical problems. If we need to, we’ll also check your car’s onboard engine management system. Depending on your car and issue, this will usually include: – Engine – Power steering – Brakes – Transmission – Exhaust system – Fuel injection system – Cooling system and air flow – Sensors

And it’s not just ECU repairs that we do for Mercedes

RAC Approved Garages offer MOTs and services. Our professional mechanics have the expertise and experience to make sure your vehicle is operating safely and efficiently – results you can rely on at a price you can afford.

Try one of our RAC Approved Garages

Witney Vehicle Repairs Ltd

4.6/5

Here at Witney Vehicle Repairs we have over 30+ years of experience, pride ourselves on our commitment to give the very best in car repairs, servicing, diagnostics, & customer satisfaction. Our pricing is very competitive with no hidden surprises, We look forward to earning your trust & gaining your custom. And now we are proud to announce we have become an RAC approved garage offering RAC inspections, repairs and other RAC products. Also we are part of the RMI & and trust my garage network, We are now offering a Shell / Forte vehicle service, parts & preventative solutions package please contact us for more information.
Witney Road, Standlake Business Park, Witney, OX297PR

Lushington Motors Ltd

4.8/5

Lushington Motors are an established local independent family run garage and are proud to be members of the LKQ-ECP 1 Tec Network. For your added peace of mind, we are members of the Motor Ombudsman service which is approved by The Trading Standards Institute. We are also members of the Independant Garage Association (IGA) and Trust My Garage network. In short, we are a local garage you can trust offering you the support and service guarantees of a national network, giving you complete peace of mind. We cover Hailsham, Polegate and surrounding Eastbourne area. We will only supply and fit quality O.E parts, so parts with the same quality, that were originally fitted to your vehicle at the factory. For added piece of mind we only use Shell engine oil.
Unit 10 Westham Business Park, Eastbourne Road, Westham, BN24 5NP

Auto Motor Solutions

4.6/5

We are a Independant garage what pride ourselves on the high standards of our work and customer satisfaction. We are RAC approved garage and a SHELL oil stockist. We always use quality parts and provide free no obligation quotes. We also offer 4 Monthly Finance Payment Plan at 0% interest. All work is considered and can be quoted for from standard services to engine rebuilds.
33 Wiltshire Road, Hull, HU46PA

Car M.D. (Mossley) LTD

4.8/5

Car M.D. (Mossley) LTD in Mossley.
Car M.D (Mossley) Ltd, Mossley, OL59BG

A1 Tyres and Exhausts

5.0/5

With over 30 years experience of automotive repairs in Coventry, A1 Tyres and Exhausts is a name that you can rely on to deliver a professional, high quality, and reliable service, that will meet all of your car needs. And above all, we are a name you can trust again and again.
Unit 12-13, Relton Mews, Coventry, CV65HE

Frequently asked questions about ECU repairs

Yes, a damaged ECU can often be repaired. Whether it can be depends on the amount of damage and how easy it is to find replacement parts.

It's usually best to leave ECU repairs to the experts. This is because as they require special tools and knowledge of car electronics.

Look out for a check engine light being on, the engine stalling or misfiring, poor fuel economy and difficulty starting the car.

It can take anywhere from a few hours to a couple of days. This depends on the issue and how available the parts are.

ECU repairs may be covered if the damage is caused by something that is insurable, like an accident. Talk to your insurance provider to find out more.

There is no set interval for ECU checks, but it’s a good idea to have it looked at, if you see symptoms.