Audi A5

Came from another garage with heaterblower trouble.

It was quickly found that the motor itself was open circuit. Most garages would then just fit a motor and send customer on there way. But here we have specialist tools and training to check the whole system in case of other faults.

To check the signals from the control panel you need an osiliscope that can detect wave patterns as the signals are on Canbus nowadays and would be undetectable using a multimeter.

Through experience we know that when the motors go on these they can overload the control module causing that to fail prematurely. Again something we can check, saving the customer the inconvenience of future work and time off the road.