KNOWLEDGE IS POWER Technicians who share their experiences of faults and fixes within the workshop are a valuable resource to peers – helping to reduce downtime and head scratching, confirming correct process and instilling confidence in those less experienced. Here, Clive Atthowe of CAT in Norwich, details the problems affecting an Audi S7 that was brought into this workshop and highlights the importance of initially checking for Technical Bulletins. On page 61 & 62, we revisit Steve Scott, founder of the SimplyDiag Network, with Edward Grigg at his Swanley garage, who detail a couple of faults & fixes as part of Steve’s mobile training offer. On page 64, Andy Crook outlines Oscilloscope Basics: Setting voltage, timebase & triggers. From page 68, Peter Melville, founder of the Hybrid and Electric Vehicle Repair Alliance, provides an overview of regenerative braking and the implications on servicing.
CASE STUDY: Audi S7 – engine stalling
Turbos removed, old turbos
By Clive Atthowe
After allowing the engine to warm up at idle we then increased engine RPM, it was then that we heard an alarming noise
"After allowing the engine to warm up at idle we then increased engine RPM, it was then that we heard an alarming noise..."
CASE STUDY
We had a customer bring in their Audi S7 V8 twin turbo recently, complaining that the engine was stalling and was then difficult to start. He also mentioned that on starting, an unusual noise was heard. The vehicle had been recovered to the workshop and after checking visually for any signs of issues, alongside basic levels, we started the car with no apparent issues.
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