Here’s another successful Audi service by the team at Pace Auto Werks. Recently a client presented their lovely Audi TT to us with an engine misfire.
After we performed a compression test and a cylinder leak-down test it was conclusive that the fourth cylinder was virtually inoperative and sitting at 90% leak-down. Up to 15% is considered within normal specification.
The cylinder bore was then inspected using a laparoscope to determine its condition, and mild scoring damage was found.
Our Pace technicians also removed the engine from the vehicle in order to strip it down. This revealed the fourth piston had suffered catastrophic failure in the ring land area, breaking apart the compression rings, oil control ring and piston itself.
However, the engine cylinder bore had only suffered minor damage, so all four cylinders were re-honed. The engine was then rebuilt with all new pistons, new bearings, and all gasket and seals were replaced.
The cause of this type of failure is difficult to pinpoint. However, the most likely cause is detonation, a nasty effect from the fuel burning unevenly in the combustion chamber, a result of running on regular 91 RON fuel.
We recommend always using 98 RON or 95RON at the very least for all German cars in order to maintain optimum standards.
The engine is now in new condition and running beautifully. It will be good for several thousand kms and many years to come. The total cost was around $14,000 saving the client thousands in the process.
If your Audi is experiencing any issues, such as sputtering noises from your engine, banging sounds from your exhaust or shaking car when accelerating – bring your vehicle to the experts for a service. Pace Auto Werks is Perth’s German auto specialist, we offer comprehensive Audi servicing and repair using specialised tools. Contact us today to book!
