Diesel Fuel System Problems of Audi Q7

Audi Q7 owners have reported 7 diesel fuel system related problems since 1996. Table 1 shows the 1 most common diesel fuel system problems. The number one most common problem is related to the vehicle's diesel fuel system (7 problems). For details of each of the problem category, use the links in the table.

Table 1. Diesel Fuel System related problems of Audi Q7

Problem Category Number of Problems
Diesel Fuel System problems
7

Diesel Fuel System problem #1

The contact owns a 2011 Audi Q7. The contact stated while driving 45 mph, the vehicle lost motive power and stalled without warning. The contact was unable to restart the vehicle and had the vehicle towed to an independent mechanic to be diagnosed. The independent mechanic stated that the high-pressure fuel pump had failed. The contact was informed that the fuel pump, fuel injectors, fuel tank, and fuel filter needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The manufacturer was contacted and stated that the vehicle needed to be diagnosed by the dealer. No additional assistance was provided. The failure mileage was 114,000.

Diesel Fuel System problem #2

Hpfp has atomized. . . Again!!. . . . Yes, again!!. . . Steering locked up while vehicle had shut down and was still moving . . . . Aprox. 15 mph. . . Almost hit another vehicle !!! my 3 children,9,12,14, were in the vehicle this time!! very dangerous!! please see first complaint. . .

Diesel Fuel System problem #3

Car stalled in the middle of a busy road. Power steering stopped working. Metal particles all over the fuel system. Car needs a new engine and fuel system.

Diesel Fuel System problem #4

Tdi high pressure fuel pump failure while accelerating from red light. This resulted in loss of power steering, power brakes and steering wheel locked while pulling car over. Had car been traveling at high speed or less experienced driver it would have resulted in an accident.

Diesel Fuel System problem #5

Ignition coil light came on and vehicle engine began sputtering. Pulled over to the side of the highway to attempt to turn around and take vehicle home. Car stalled out and would not restart. Had to get it towed to Audi dealer.

Diesel Fuel System problem #6

Filled Audi Q7 tdi 2010 model on 5/4/2011 with diesel fuel and made it about 3/4 of a mile and the vehicle started to rattle and shake hard, felt almost like a flat tire. . . . . But then started to sputter and gurgle and then shut down completely, this took all but about 60 seconds once I felt the shaking, to the shutdown. . . . . . . Steering locked. . . . Not good. . . . Almost hit a parked car on the side of the road. Vehicle died and stalled in the slow lane (for an hour) and would not restart. . . . What could have happened on a freeway. . . . I hate to think. . . . Flatbed tow truck to dealership and was advised (3) three days later that the hpfp atomized into the fuel system and the system would have to be replaced. . . . Injectors, fuel lines, fuel tank, gas filler nozzle, etc. Etc. , I have an invoice 5 pages thick for this!! well, 28 days later suzie q, as we called her, was back. Now. . Now. . Now. . . Again!! yes, again, this has happened. . . . . Wed. , January 8, 2014. . . . Almost an identical situation occurred. . . . . Filled Audi Q7 tdi 2010 model with diesel fuel and made it approx. 3/4 mile. . . . (geese what a surprise!!) and sounding so familiar. . . Yes?? just read again the previous paragraph and place it here. . . . Identical, identical, situation to the "t" this time around, except a different gas station. Dealer today, January 10, 2014 has informed me that, yes, indeed the hpfp has atomized again,. . . . Again,. . Really. I want to lemon this pos that I paid $78,510. 38 for and was touted by the dealership as almost bullet proof!! hah lol. . . I was a fool. Never again buying an Audi. . . Unless this is made right. Trade in for full value minus a little. . . . Sound ok??.

Diesel Fuel System problem #7

Audi 2010 Q7 tdi fuel filler problems. On several occasions, approximately 1 in 4 fuel stops (current mileage 9,200 miles), I have been unable to insert a fuel pump nozzle into the fuel filler neck on the vehicle due to a vertical bar just inside the filler opening. If fuel is dispensed, its is rejected onto the outside of the vehicle and ground. Possible fire risk. In addition, using the vehicle in urban and rural settings all over the western us, I have been low on fuel and unable to refuel the vehicle risking running out of fuel far from another station. Personal safety risk. Audi does not have any explanation for the problem yet it should be corrected. I have called the dealer and searched the web for information and/or a solution to the problem. Most recently, at a station at west yellowstone national park, I was able to overcome the locking bar with a knife and the fuel filler nozzle combined so I could release the bar and insert the fuel filler nozzle. Audi says it is due to damaged fuel pump nozzles at fuel stations but this does not hold true since it occurs at stations where nozzles are nearly new and perfectly round.



Safety Ratings of Q7 Cars
Fuel Economy of Q7 Vehicles
Q7 Service Bulletins
Q7 Safety Recalls
Q7 Defect Investigations