We are a Mercedes garage carrying out repairs and vehicle maintenance on Mercedes cars and Mercedes vehicles

We are an Independent Mercedes Garage


If you are an Mercedes car owner and need help with maintenance, repair work or vehicle diagnostics then you have found the right garage. We have one rule at our Mercedes garage, our customers always come first and always receive the highest standards of customer service, sorry that was two rules, but listen, our main goals are to get Mercedes car owners back out on the road quickly, reliably and at the best most affordable prices.

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There is no job too big or too small carried out from our Mercedes garage


We service many types of problems from our Mercedes garage. It could be that you have an electrical window fault or an engine problem. We service vehicles from one end of the spectrum to the other from complex work to less complex vehicle service work.

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We are an Mercedes garage and have been established for 10 years


We have been established for 10 years and have been servicing hundreds of Mercedes vehicles from our Mercedes garage. The photo below shows just how busy it is at our Mercedes garage with vehicles waiting to be serviced inside the garage.

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We have excellent testimonials from happy customers


We have excellent testimonials from happy customers happy with the services and prices received from our Mercedes garage. Here is a recent testimonial from a happy customer of ours Dave Bennett pictured below.

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This testimonial is a little long but worth the read, Dave went on to say.

“I visited many garages in and around Cardiff leaving disappointed on many occasions as every garage said they could not help with the work on my vehicle.

I decided to try and seek out one last garage and thankfully this garage was A1 Diagnostics. From the word go I knew I had found a fantastic garage as everything I mentioned I wanted done to my vehicle they said YES THEY CAN DO, a fantastic positive attitude and solution to every given problem! I will be recommending their vehicle car garage to anyone.”

We invest in Mercedes mechanics with years of experience in the vehicle servicing trade


At our Mercedes garage we all work together as a team. We have 30 years of Mercedes servicing experience under our belts but we also invest in Mercedes mechanics who have lots of experience under their belts, this only ensures you receive the very best vehicle servicing. A few of our experienced mechanics are shown below.

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We invest in all of the latest Mercedes vehicle technology


All of the major brands including Mercedes are continually adding new technology to their cars and vehicles. It is important that an independent garage we stay up-to-date with the new technology. To demonstrate our commitment in staying up-to-date with technology in the last year we have invested in over £50,000 in vehicle diagnostics equipment. This ensures that we have all of the facilities to always offer reliable vehicle servicing, photos of some of the Mercedes technology are shown below.

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Contact A1 Diagnostics

If you have any requirements or need any advice on any Mercedes car dilemmas then get in touch with us. We are an Mercedes garage with 10 years experience getting Mercedes motorists back out on the road quickly, reliably and at the best most affordable prices.

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A1-Diagnostics and ECU Repairs
64 Sloper Road
Leckwith,
Cardiff
CF11 8AB

Tel: (029 20) 220380
Fax: (029 20) 223172

Opening Times

Mon – Fri: 9:00am – 6:00pm
Sat: 9:00am – 1:00pm