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Service, Repairs & MOT

ECU repair in Hertford

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
A mechanic standing inside a garage

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
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.

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 in Hertford

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

D & B AUTO CARE

Welcome to D&B Autocare in Hertford, we are car repair specialists carrying out all your car servicing needs, we provide a wide range of services. Car servicing in Hertford Major engine repairs Clutches/Gearbox Batteries Timing belt/Chain replacement Exhaust Brakes and many more
Unit 12, Mimram Road, Hertford, SG141NN

Herts And Essex Commercials

Car & Van Servicing & Repairs 24 Hour Breakdown Recovery Service
Rennesley Works Anchor Lane, Wadesmill, Herts, SG120TE

JN Tyres Autocare Ltd.

JN Tyres Autocare Ltd 7 Swallow End, off Swallowfields Welwyn Garden City Herts AL7 1JA
Swallow End, Welwyn, Hertfordshire, AL71JA

SpinFix Tyres & Auto Services Welwyn Garden

At Spinfix, we pride ourselves on being more than just a tyre service – we’re your complete autocare partner. Our team of skilled and experienced technicians ensures that every job, from emergency tyre fitting to full MOT servicing, is carried out with precision and care. We combine professional expertise with affordable pricing, offering transparent costs and excellent value without compromising on quality. With a wide range of services available under one roof – including tyres, brakes, diagnostics, and complete workshop solutions – we make it easy and convenient to keep your vehicle in top condition. Whether you visit our fully equipped workshop or call us for mobile tyre fitting, our goal is always the same: fast, reliable service and complete customer satisfaction. Choosing Spinfix means choosing trust, efficiency, and peace of mind on every journey.
Unit D 27 Bridge Rd East, Welwyn Garden City, AL71JE

Collect Service Go

We are a professional reliable garage. Customer satisfaction and vehicle safety is an our main priority! All repair work comes with 1 years parts and labour warranty, we also only use OE quality parts, this guarantees any manufactures warranty you may have. Meaning even the newest Cars can be brought to Collect Service Go. Specialise In Car servicing and maintenance, MOT Testing, Brakes, Tyres, Clutches, and General Repairs. Collection and delivery available please contact for more details.
Unit 2 East Burrowfield, Welwyn Garden City, AL74TB

Frequently asked questions on 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.