• ECU Repairs Cardiff

    ECU Repairs Cardiff

    ECU Repairs Cardiff are able to rebuild, test and remanufacture ECU units on our test bench in Cardiff

ECU Repairs Cardiff

ECU Repairs Cardiff
Contact A1 Diagnostics

With years’ of experience in the motor trade, we have serviced cars and commercial vehicles with some of the very first engine control units (ECUs). In that time, we have become an industry leader and specialist in ECU testing and repairs, offering the highest standard of work backed by excellent customer service from our garage workshop pictured below.

We have the latest state-of-the-art technology that allows us to test ECUs and identify persistent faults, as well as finding the intermittent faults you may not be aware of.

We are able to test and repair all engine control units, including:


• Air bag ECUs

• Engine ECUs

• Dashboard ECUs

A fraction of the price of a new unit

ECU repairs at A1 Diagnostics are a fraction of the price of a new unit, and can help you make a big saving on the cost of going to the main dealer. We perform ECU testing and repairs on all major vehicle types, from family cars to vans and commercial vehicles.

We also hold a large number of ECU units and replacement parts in stock, and constantly update our range to meet our customers’ needs. That means in many cases, our ECU specialists can get you back on the road quickly without having to order parts in.

Book your car in with the ECU specialists

With years of experience, our professional technicians have the expertise to work on any ECU job, from small repairs to complete overhauls. Importantly, our pricing is completely transparent, so no hidden charges are added after the work is done. If we do identify any further faults when testing your ECU, you will be advised of the cost of the repair before we start the work.

Contact us to book your vehicle in with Cardiff’s best ECU repair specialists, please use the contact details below.


A1-Diagnostics and ECU Repairs
64 Sloper Road
CF11 8AB

Tel: (029 20) 220380
Fax: (029 20) 223172

Opening Times

Mon – Fri: 8:00am – 6:00pm

Email: info@a1-diagnostics.com