Car and Van Services in Cardiff

A1 Diagnostics is an award-winning independent garage on Sloper Road in Cardiff, opposite Cardiff City Stadium. We service and repair all makes and models, from routine servicing and MOT testing through to complex engine, gearbox and electrical work. Everything below is carried out in our own workshop by our own technicians.

Open Monday to Friday, 8am to 6pm. Call 02920 220 380 to book.

Servicing and MOT

Car servicing in Cardiff — interim and full servicing for every make and model
MOT testing in Cardiff — MOT tests with any repairs carried out on site
Engine servicing and repairs — from oil services to engine rebuilds

Diagnostics and auto electrics

Vehicle diagnostics — full system scanning and fault finding on all makes
ECU repairs
Electrical fault finding
Key coding
Immobiliser repairs
ADAS calibration in Cardiff

Mechanical repairs

Recovery

Car recovery in Cardiff

Every make and model

We are an independent all-makes garage. Whatever you drive, we can service and repair it, with dedicated equipment for Audi, BMW, Mercedes-Benz, Volkswagen, Land Rover and Range Rover. You can see the full list of makes we service.

To book any of the above, call 02920 220 380 or contact us. We are at 64 Sloper Road, Leckwith, Cardiff, CF11 8AB.

How booking works

Call 02920 220 380 and tell us what the car is doing. We will tell you what it is likely to be, roughly what it costs and how long we need the car for — before you commit to anything.

Nothing gets done that has not been agreed. If we find something else once the car is on the ramp, we ring you and explain it, and you decide. If a repair turns out not to be worth doing, we will tell you that too.

Why use an independent garage

We are not a franchise, so we are not working to a manufacturer’s price list. That usually means a lower bill for the same job, using parts of matching quality.

It does not mean a gap in your service history. We upload every service to the manufacturer’s digital service record and stamp the book, so the car’s history stays complete and visible to any future dealer or buyer. Servicing with an independent does not affect a manufacturer warranty, provided the work follows the manufacturer schedule and uses parts of matching quality.

And we are a full workshop rather than a diagnostic-only unit or a test-only centre. Whatever we find, we can fix here.

Where to find us

64 Sloper Road, Leckwith, Cardiff, CF11 8AB — opposite Cardiff City Stadium. Open Monday to Friday, 8am to 6pm. Call 02920 220 380 or contact us.