Audi Q7 owners have reported 5 problems related to oil pump (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Audi Q7 based on all problems reported for the Q7.
Oil pump bolt lose timing chain rattling lose oil pressure.
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The contact owns a 2007 Audi Q7. While the vehicle was serviced by a certified mechanic, the oil pump bolt detached and damaged the engine. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 65,000.
The oil pump bolt vibrated loose causing timing gear and chain to fall out inside engine causing catastrophic engine failure and loss of brakes and power steering. Was in motion on a city street moving with traffic and suddenly the engine silently fails causing loss of power assist breaks and steering. The car is almost silent so I did not realize until I came up to a stop light and needed to brake almost causing a serious accident. If you google "oil pump bolt issues" you will see there are hundreds of passats and Audi 's with 3. 6 liter engines manufactured at the same factory with this issue. Most of them failed while the cars were under warranty and were fixed quietly by the dealers. Those of us who were unlucky enough to buy one that has not had the "strengthened bolt' installed or engine failure prior to the warranty are driving ticking time bombs. The big problem for this part is that it is located behind a cover in such a way that the engine needs to be pulled in order to reach it this is an extremely expensive preventative step close to 2 k or more just to check for a bolt. I wish I had known prior to this happening as every place I've spoken to wants 15000 dollars to install another engine. I could have easily been killed if I was going a little faster and needed to stop fast.
Driving my car when I heard pop and car stalled. Engine would not turn over and had to have it towed to dealer. Dealer said oil pump went and caused the engine to seize. Know I have to replace engine. Car was at dealer two weeks prior and issue not addressed.
The contact owns a 2007 Audi Q7. The contact heard a rattling noise and the oil pressure light illuminated when he started the vehicle. The dealer stated that the valve that connects the oil pump to the engine failed. The vehicle was repaired. The current mileage was 1,400 and failure mileage was 500.