Our independent garage is located in Cardiff pictured below.

We are a reputable automotive service provider specialising in comprehensive engine diagnostics and repair solutions. Our company is well-regarded for its use of advanced diagnostic equipment and highly trained technicians, enabling us to accurately identify and resolve a wide range of engine-related issues.

Our engine services at A1 Diagnostics cover both petrol and diesel engines, catering to private car owners, fleet operators, and light commercial vehicles. Our diagnostic process involves connecting vehicles to sophisticated diagnostic tools that monitor engine performance, and detect any underlying faults. This enables our team to pinpoint problems such as misfires, sensor failures, fuel system issues, and much more.

Beyond diagnostics, we offer a full suite of engine repair and maintenance services. These include engine fault code clearing, component replacements (such as sensors, injectors, and turbochargers), engine tuning, and performance optimisation. The service is designed to be both thorough and transparent, with technicians providing detailed explanations and cost estimates before any work is undertaken.
We pride ourself on fast turnaround times and a customer-focused approach. We strive to minimise vehicle downtime and ensure that repairs are completed efficiently without compromising on quality.

With a strong reputation for reliability and technical expertise, we are one of the best independent garages in Cardiff and are a trusted choice for motorists seeking professional engine diagnostics and repairs. Our commitment to up-to-date technology and customer satisfaction ensures that vehicles are returned to peak performance with minimal disruption.

Contact us

If you need any further information get in touch and speak with our experienced customer service advisers. We have over 20 years’ experience in the trade and when you leave your car with us it is in the safest of hands. Use the contact details below or form to get in touch. We are happy to help.

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

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

Opening Times

Mon – Fri: 8:00am – 6:00pm

Email: info@a1-diagnostics.com