A1, German Car & BMW Bike Specialists

German Car & Bike Specialists

Independent BMW, Mercedes, Audi, VW Service and Parts Centre in Stevenage

Vehicle Diagnostics

Diagnostics and Fault Finding

Whether you need a repair from a simple light bulb change to the most complex gearbox rebuilds, our team of highly skilled technicians can first diagnose the problem with your Audi, BMW, VW, Seat, Skoda or Mercedes and then provide you with a competitive quote to undertake the work. A1 German Car & Bike Specialists are big enough to cope yet small enough to care about your and your car's needs. We offer everything you would expect from a large main dealership, including Servicing, Mechanical Repairs, Performance Upgrades and more...

New ISTA Diagnostics Kit for Audi, BMW, VW, Seat, Skoda & Mercedes


At A1, we now use the same professional BMW diagnostic system equipment as main dealers to diagnose faults and run resets/fixes. The BMW AG ISTA BMW Diagnostics Kit system automatically updates from the BMW AG central server to ensure all the latest updates are available.


Diagnostics is our key area, and with more electrical and computer-controlled items being fitted to cars, we see an increasing number of faults.

Fault-finding and rectification require expensive dedicated test equipment and well-trained technicians, of which we have both. This places us in a solid position to provide "Diagnostic Services" to the general public and trade alike.

Have a Fault with your vehicle?

Diagnostic Work for Audi, BMW, Volkswagen, Seat, Skoda, Mercedes etc includes:

  • Engine Management
  • Fuel Injection
  • ABS brakes
  • Airbag
  • General Electrics
  • MAF (Mass Air Flow) Issues
  • Diesel Pumps
  • and much more...

Diagnostic work can be time-consuming and expensive. It is for this reason that it is best to use a specialist to ensure a cost-effective solution to your vehicle faults.

VAG, Mercedes and BMW Mechanical and Electrical Repairs

A specialised mechanic is required when it comes to BMW, Volkswagen, Skoda, Seat, Audi, and Mercedes repairs of mechanical parts like brake pads and discs or even your iDrive system. The staff at A1 are experienced and highly qualified BMW service specialists. What's more is that we only use Original BMW Parts for repairs, guaranteeing the highest levels of quality and performance. Original BMW Parts are tailored to your BMW - each component is highly reliable and made to last, ensuring long-term good value...