Yes we have been talking about how we are so good at repairing engines and servicing them. But we don’t just take on big jobs we also service small jobs. In our over twenty-year existence, our motto has always been there is no job too big or too small for us. So, lets prove it!

Next up we look at a Volkswagen Passat pictured below in our electrical bay.

This car’s electric door handle became faulty; the mechanism would not work. Why? Because moisture had contaminated the wire and would not allow power to run through it. We replaced the wire and found the source of where the moisture was coming from and repaired the door. The door is now working perfectly.

We do not just invest in mechanics who have heavy mechanical experience. We also invest in electrical technicians who have the very best experience in repairing vehicle electrical faults. So, if you need a garage that can diagnose faults on your vehicle whether electrical or more mechanical, we are the garage to turn to.

Not only do we have the best experience we have also won awards. Just late last year we won an award at the Cardiff Business Awards 2025 for the category “Innovative Business of the Year”.

This just goes to show the recognition we are receiving is another indicator that we are a trusted independent garage that can service all the faults on your vehicle.

Contact us

We are an award-winning independent garage. Whatever problem you’re experiencing with your vehicle get in touch we can help. Whether you need a tyre change, wire replacement, brakes change or a complete engine overhaul we are the garage to turn boasting over twenty years’ experience in the trade. Use the contact details below 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