A1 Diagnostics – Cardiff’s number 1 MOT test centre

A1 Diagnostics is a VOSA approved MOT test centre which has tested thousands of cars over the years, helping to get family and commercial vehicles roadworthy for the right price.


VOSA are the organisation responsible for giving test centres like A1 Diagnostics a license to carry out MOT testing. This official certification along with the dozens of testimonials we have received from happy customers over the years is proof that your vehicle is in the safest of hands.

When should you MOT your vehicle?

It is the owner’s responsibility to ensure their vehicle is roadworthy. To do this you must have the vehicle’s lights, electrical equipment, brakes, suspension, steering, tyres, seatbelts, exhaust and chassis tested every 12 months.


What makes A1 Diagnostics so effective at MOT testing?

A1 Diagnostics has the state-of-the-art equipment to test your vehicle’s road-worthiness and pinpoint problems other garages could miss.

The quality of our MOT service will save you money from the off, as we can identify and repair faults straight away. Any underlying problems that go undetected could lead to more expensive problems further down the line.

MOT testing at the right price

We also have a class 4 and class 7 MOT test lane to ensure a comprehensive level of service, which is just one of the reasons we have so many testimonials from happy customers. We are also able to offer MOT testing at the right price, delivering a cost efficient service without compromising on quality. Our MOT testing costs £54.85 for cars, and £58.60 for vans and trucks.


There’s no need to worry if your vehicle does not pass the MOT test. We will find the fault and repair your vehicle quickly and efficiently to get you back on the road in the shortest possible time.


Contact A1 Diagnostics

Please use the contact details below to book your MOT: 


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

Read more:
Five symptoms your car or vehicle needs a brake service ensuring safety out on the road

It is important that your brakes are working correctly when out on the road ensuring safety. Overtime the brakes on...