We have reached 1000 likes on our Facebook page

We have reached over 1000 likes on our Facebook page showing we have 1000’s of happy customers.

Our garage pictured below pride ourselves on price, service, vehicle technology facilities, reliability and speed of service.



This latest trust factor receiving over 1000 likes show’s we are a garage worth visiting. We use the most technical vehicle services using the latest vehicle technology in Cardiff fixing the simplest problems to the most complicated.

Our 5 star Facebook reviews

We have received some great feedback through our Facebook page. Check out the five star reviews we have gained from our happy customers outlined below.


“Been going to A1 for about 6 years now – can’t recommend them highly enough – staff are always friendly and helpful – brilliant job!”


“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.”


“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.”


“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.”

The reason people trust our garage and we are able to pull in 5 star reviews is because we offer reliable vehicle services. We invest in the very best vehicle technology for our mechanics to use ensuring reliability in our services.

Over the last 18 months we have invested in over £100,000 in new vehicle technology. We invested £25,000 in a new state of the art electrical bay containing all of the latest technical vehicle diagnosis technology. Photos of our brand new electrical bay are shown below.

The advantage of having our own electrical bay is we can diagnose electrical faults with your vehicle more quickly and reliably. We can also diagnose electrical engine faults quickly and reliably. Here are photos of our specialist mechanics diagnosing an engine electrical fault from our electrical bay.

In our electrical bay we also have invested £5,000 in a brand new ADAS system. The ADAS system stands for Advanced Driver Assist Systems, these are things like camera sensors on the car that help you park, or systems that help you stay in cruise control when out on the motor way. When ADAS systems fail overtime we can help put them right for you, we can reconfigure ADAS systems and have all the technology to do so unlike a lot of main dealers.

The ADAS technology we have in our electrical bay is shown below.

We know just how important it is to invest in technology, we want to get to the very heart of a problem with your vehicle. That is why last year we invested £25,000 in a new autologic computer which can diagnose problems with your vehicle in an instant. The autologic computer we have invested in is shown below.

We can plug the autologic computer system into your car or vehicle and it will diagnose the problem and give us a complete description of the fault. The Autologic computer is specialist and state of the art, the system is updated with the latest information and the latest error codes. Having the latest updated information on vehicle faults only helps us service your car more reliably, this makes us one of the most reliable service garages in Cardiff.

Lastly we look at a new MOT test bay and service ramp. This investment cost us £50,000. What is special about this new ramp and MOT test lane is it is specialist for German manufactured cars. We can service other continental cars on this ramp however it is especially geared up to service Audi, BMW, Skoda, Volkswagen, Seat and Mercedes vehicles. Because we have this ramp means once again we can service your cars and vehicles more reliably. The ramp is pictured below.

The other specialist thing about this ramp is we can also reconfigure the tracking and wheel alignment on your vehicle. When the tracking and wheel alignment go out of sync over time we can put this right on your vehicle. Here are photos of us servicing a Volkswagen vehicle realigning the wheels and tracking on the car.

We win work because we price work competitively and offer reasonable prices compared with main dealers. Below we have a Nissan vehicle on one of our specialist ramps.


The problem with this Nissan vehicle is the cam belt on the engine had failed. The owner of the vehicle went to the main dealer and to replace the cam belt and carry out the engine repair work the main dealer quoted £6000. This being another chunk of change, the owner shopped around and luckily found us. We replaced the cam belt on the engine and carried out all of the necessary engine repairs and did so for £1800, this being a £4200 saving for the Nissan vehicle owner.

So, stay tuned and follow our Facebook page. We regularly let you know what is happening at our garage from vehicle service work being carried out, to developments such as opening new branches in Bridgend and Swansea. We would like to thank all of our customers and the people who make our Facebook page a success.

Contact A1 Diagnostics

Get in touch today for expert advice or to book your vehicle in for an appointment we are happy to help you with any vehicle or car queries you have.


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

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More recent car service work from our car garage

It has been a busy month once more at our garage pictured below. We have been carrying out a whole...