• Independent German Car Specialists

    Independent German Car Specialists

    Welcome to A1 Diagnostics. We are a BOSCH vehicle service garage based in the heart of Cardiff offering professional vehicle servicing from our garage workshop.
  • MOT Service Cardiff

    MOT Service Cardiff

    A1 Diagnostics provide MOTs In Cardiff to the Public and Private Sectors. With our highly qualified MOT team your car is in safe hands
  • About A1 Diagnostsics

    About A1 Diagnostsics

    Read more about the services we offer here at A1 Diagnostics.
  • We service all brands of vehicles

    We service all brands of vehicles

    We specialise and service all makes of vehicles especially German manufactured vehicles.
  • Professional Mechanics

    Professional Mechanics

    Our mechanics are trained on the latest technologies and have the most up-to-date diagnostic equipment to pinpoint any faults. Our mechanics work together as a team and have years of combined experience in the motor trade.
  • Car Servicing Cardiff

    Car Servicing Cardiff

    Get your car serviced efficiently and quickly at A1 Diagnostics in Cardiff
  • ABS Repairs Cardiff

    ABS Repairs Cardiff

    Anti-Lock Breaking System (ABS) can also be a costly repair to your car in Cardiff
  • Air Conditioning Servicing Cardiff

    Air Conditioning Servicing Cardiff

    Having the state of the art air conditioning unit means looking after it and having it checked once a year
  • ECU Repairs Cardiff

    ECU Repairs Cardiff

    ECU Repairs Cardiff are able to rebuild, test and remanufacture ECU units on our test bench in Cardiff
  • Electrical fault service Cardiff

    Electrical fault service Cardiff

    Electrical fault service Cardiff can help diagnose your electrical fault problems in Cardiff
  • Engines and Gearboxes Cardiff

    Engines and Gearboxes Cardiff

    We can repair, rebuild and offer many engine and gearbox services from our Cardiff based vehicle service garage. Contact us for any advice needed we are happy to help.
  • Immobiliser Repairs Cardiff

    Immobiliser Repairs Cardiff

    A1 Diagnostics and ECU repairs can fix your immobiliser repair problems quickly
  • Key Coding Cardiff

    Key Coding Cardiff

    Key Coding Cardiff can be done at A1 Diagnostics Cardiff
  • Car Recovery Cardiff

    Car Recovery Cardiff

    Broken down in the Cardiff, South Wales area? Choose Car Recovery Cardiff at A1Diagnostics
  • We have a state of the art vehicle electronics bay

    We have a state of the art vehicle electronics bay

    We have our own electronics bay to diagnose electronic related vehicle problems. From electrical engine faults to ECU repairs we have all the equipment needed to repair electrical faults in your vehicle.
  • Cosmetics vehicle service

    Cosmetics vehicle service

    If you have scrapes and scratches in the interior we can repair them for you leaving your vehicle looking as good as new.
  • We are experts in gearbox rebuilds and repairs

    We are experts in gearbox rebuilds and repairs

    We have extensive experience in gearbox rebuilds, reconditioning and repairs at competitive prices.
  • We are experts in engine rebuilding and repairs

    We are experts in engine rebuilding and repairs

    We rebuild and repair hundreds of engines every year. Contact us if you have any engine issues we can help.
  • MOT vehicle testing

    MOT vehicle testing

    We have two MOT test lanes and offer affordable MOT servicing. Contact us if you have any queries.
  • Brake servicing at affordable prices

    Brake servicing at affordable prices

    We service brakes of many vehicle brands and types. Contact us for any advice on brake problems you may be having.
  • We do breakdown recovery

    We do breakdown recovery

    If you do not have breakdown cover don't worry we can pick your vehicle up repair it and return it to you. Contact us for any advice needed.
  • Air conditioning vehicle servicing

    Air conditioning vehicle servicing

    We can help you stay cool and ensure your vehicles air conditioning is working perfectly. Contact us for any advice needed.

News & Offers

The Bible of Mercedes vehicle fault codes

The Bible of Mercedes vehicle fault codes

We have put together the ultimate list of Mercedes fault codes for you to use to help fault find the problem with your Mercedes vehicle. When you are experiencing a problem with your Mercedes vehicle the vehicles computer will often…read more →

A1 Diagnostics can fix fault code P261F71

A1 Diagnostics can fix fault code P261F71

A1 Diagnostics have all of the equipment needed to diagnose fault codes in Mercedes vehicles from our garage workshop pictured below. When you experience a fault with your Mercedes vehicle you will get a fault code. This fault code will…read more →

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

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. The government has given a six-month extension on vehicles needing to get their MOT, that means you can MOT your…read more →

Let us maintenance your vehicles engine at affordable prices

Let us maintenance your vehicles engine at affordable prices

During lockdown we were still open with limited staff, that did not stop us from taking on all the big engine jobs while implementing full social distancing rules. We have mechanics that have years of experience when it comes to…read more →

A recap on how A1 Diagnostics save motorists money on vehicle repair

A recap on how A1 Diagnostics save motorists money on vehicle repair

A1 Diagnostics have been established for over 10 years servicing thousands of vehicles from our garage pictured below. Throughout our blog you will see how we pass price advantages on to motorists saving them money, for example, we have had…read more →

Keep your family safe when out travelling on your summer holidays

Keep your family safe when out travelling on your summer holidays

The summer holidays are fast approaching and if you’re taking the family on a holiday then make sure that your vehicle is safe and ready to go the distance. We have had many motorists coming to our vehicle garage pictured…read more →

We are specialists in sourcing gearboxes for our customers

We are specialists in sourcing gearboxes for our customers

We are gearbox maintenance and repair specialists. If your gearbox is beyond repair then don’t worry we can source gearboxes in from all over the UK, in-fact we can source them in from all over the world. We work closely…read more →

Deciding on which car garage to use here are a few tips

Deciding on which car garage to use here are a few tips

It has been a busy summer for us and we have gained many new happy customers. Check out the latest five star review we gained from a customer happy with the services received from the garage pictured below. Leighton said…read more →

12345»
Page 1 of 19