Book an ECU Repair for your Mercedes| RAC

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.

Quality work

Any work done will meet the high standards set by the RAC.

Exceptional customer service

We’re friendly, straightforward and jargon-free

A mechanic inspecting the underside of a vehicle.

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.

Diagnostic check

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.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

View all garages

AEC Motors (Mallusk)

4.7/5

We at AEC Motors have been working on Audi and Volkswagen vehicles for over 15 years, however we have over 30 years of experience in the motor trade and have worked on most makes and models by now. We use state of the art Snap-on car diagnostic equipment which can read the fault codes in your ECU’s memory. Our fully trained technicians are then able to produce a report and inform you of any necessary repairs, to get you back on the road quickly and safely. BEST GARAGE Northern Ireland By WCFMC on its annual Awards 4 years running. We are happy to provide a free collection and delivery service for vehicles within 4 miles of our garage depending car is drivable & roadworthy. ( pickup any where in Carrickfergus & Newtownabbey Area Free ) **Note If car needs recovered there will be a recovery fee applicable**

Mallusk Road, Newtownabbey, BT36 4PX

A30 Auto Service Centre

4.7/5

RAC Approved Car and Van specialist Service Centre with over 75 years of experience, We also offer MOT, Servicing, and light repair for all other vehicle types. Our highly skilled technicians are dedicated to ensuring your vehicle is running smoothly and efficiently. Contact us today to schedule your appointment and experience the best in automotive care. SERVING ALL AREAS OF CORNWALL INCLUDING ST AUSTELL, BODMIN, WADEBRIDGE, TRURO & VICTORIA CONTACT US TODAY TO SCHEDULE YOUR APPOINTMENT AND EXPERIENCE THE A30 AUTO SERVICE CENTRE DIFFERENCE.

Unit 4B Victoria Industrial Estate, Victoria, St Austell, PL268LX

BPS Garage Services

5.0/5

BPS Garage Services was established over 20 years ago in Uttoxeter, we're a family-run business, specialising in all makes and models. Whatever the issue, we'll be able to help - including cars, motorbikes and vans. We also collect and deliver across the WHOLE of the UK! -TYRES -SERVICING -EXHAUSTS -BRAKES -TRACKING -RECOVERY -COMPUTER DIAGNOSTICS -ECU REMAPPING -TERRACLEAN

Unit 25, Bramshall Industrial Estate, Uttoxeter, ST14 8TD

Slaters Motor Group

4.2/5

We are an established local independent garage and are proud to be members of Autofirst Network – a nationwide network of independent garages operating to the Network’s 6 core values of Capability, Consistency, Care, Clarity, Cost Effectiveness and Customer Focus. For your added peace of mind we are members of the Motor Ombudsman service which is approved by The Trading Standards Institute.

Unit 5-7, The Parade, Sunderland, SR28NT

Turner Brothers

4.8/5

Established in 2000, Turner Brothers has grown in to one of the most comprehensive and forward thinking garages in the area. Services include anything from bulb replacement to full engine rebuilds and body shop facilities. We are a recommended Bosch Service Centre.

Turner Brothers Limited, Bottoms Mill, Woodhead Road, Holmfirth, HD9 2PX

Frequently asked questions about ECU repairs

Can my damaged ECU be repaired?

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.

Can I fix the ECU myself?

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

What are the signs of a failing ECU?

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

How long will my ECU repair take?

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

Is my ECU repair covered by car insurance?

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.