More happy reviews from happy customers

We have had more great reviews from happy customers who have had their cars and vehicles serviced from our Cardiff based car garage pictured below.

Here are the latest reviews gained over the last few months.

Dee said.

“Just wanted to say thank you for such great service this week – MOT and annual service undertaken, really quick and professional, with a car clean and air freshener supplied too! Excellent. I’ll be recommending A1 to all my friends and family. Thanks again.”

Nigel said.

“Took my Vauxhall insignia in yesterday lol.
Very good service by all of the team. They solved the problem straight away. It was not even the same problem that I was told by another garage which would have cost me cost me £££.
Thanks to all the team.”

Sharon said.

“I had my air conditioning on my Yaris serviced today, with a full diagnostic check and re-gas, excellent service, good honest help and advice throughout, at last my A.C. doesn’t smell like mouldy bread. Thank you so much A1 Diagnostics some honest people, who don’t rip you off because you are female. Definitely worth the drive from Bridgend.”

We are a car garage that cares about our customers

We are a car garage that cares about our customers. We want to service your vehicle at the best prices that are affordable to you. We invest in all of the latest vehicle technology ensuring good reliable car servicing. We ensure your car is fixed at the first point of contact and you don’t have to keep coming back to the garage.

If you need more reasons to give our car garage a go here in Cardiff check out the certificate we were given by BOSCH recently. They awarded us this certificate pictured below after passing their service audit with flying colours.

We are a BOSCH service garage and we are specialists in all makes of vehicles. We do service all brands of vehicles but we are specifically specialists in servicing German manufactured cars from Mercedes cars, Audi cars, Volkswagen cars, Skoda cars and BMW cars.

We are also known for saving motorists money, here is an example.

Pictured below we have a Nissan vehicle. The ABS pump had become faulty and needed replacing. The owner of the vehicle went to the main dealers and was quoted £2500 a high price which included fitting. With this being a high price the owner looked about and thankfully came to our car garage. We ordered in a new ABS pump and fitted it for £1000. This saved the vehicle owner £1500.

Here is the vehicle pictured below with the faulty ABS pump which we replaced.



If you have any problems with your car or vehicle then why not get in touch with us. We have all the facilities and mechanics with years of experience that can help get your car fixed, reliably and at great prices, become a happy customer with A1 Diagnostics.

Contact A1 Diagnostics

For any further information or to book your car in for a service at our car garage pictured below 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


Read more:
Be safe don’t wait if you think your car needs a service

We are an MOT test centre and can MOT vehicles of all brand types from our garage workshop pictured below....