Power Train Problems of Audi Q7 - part 2

I have a 2009 Audi Q7 diesel bought from dealership March 2019 after it had been sold to the public once Audi did emissions recalls , after I bought this vehicle had issues with it 10 days after I bought it I took it back dealership wants to have nothing to do with helping me even though it still has an extended warranty for 4 years more from the manufacturer, I have a flashing glowplug and limp mode vehicle that when driving it and glow plug goes on while I am on the road vehicle slows down from going 65mph to approximately under 15mph in just seconds engine loses power and its a safety hazard while on the freeway . Audi dealer claims I have fuel contamination but when asked to prove to me this through fuel being sent to the lab they have no such lab results . They just claim I had this in order not to honor my warranty which is very fishy since I bought vehicle once they sold it out to the public after recall had been supposively fixed for emissions. I had fuel pumps replaced fuel pressure regulators and injectors as well all paid out of pocket vehicle still states code poo88 and code p0087 changed fuel filter also and now catalyc converter code is on also I feel they need to honor my warranty since fuel was never tested through a lab and its just by word of mouth that they claim I had contamination . Vehicle still being worked on but all costs out are out of my pocket eventhough my warranty booklet from the manufacturer states I should be covered for fuel rails, pumps, catalyc converte etc. .

See all problems of the 2009 Audi Q7 🔎.

After just merging to i695 w from traveling south on i95 vehicle continued to accelerate after going full throttle and would not respond to the brake override. It appeared that the throttle pedal was somehow stuck and would not come back up on its own. The pedal appeared to have gone past its 'normal' motion range and had sunk quite low into the floor. This forced me to have to stand with full force on the brake and unto the shoulder with a full emergency stop required. Which in turn caused to brakes to smoke for a few minutes. I have confirmed that it was not the floor mats or any object impeding the travel of the pedal that could have caused the issue. After turning the car off I was able to force-ably return the throttle back to its 'normal' position. I have not since gone wot since this incident happened.

See all problems of the 2015 Audi Q7 🔎.

When car is placed in reverse a "p" or park is still displayed in the instrument panel. This has happed several times. Audi service was provided pictures and video of occurrences and they said they would get back to me. They never did. Also now have sos malfunction warning displayed. Car only has 7k miles on it.

See all problems of the 2018 Audi Q7 🔎.

I have a 2014 Audi Q7 tdi and have just had the diesel gate recall fix to improve emissions. The fix has reduced mpg's and significant power to my car. I was told the car would only lose about 2mpg but it's more like 4-5mpg. The power loss is significant and makes the car dangerous to drive especially when pulling out into traffic. The hesitation puts all passengers in danger. The biggest safety issue has to do with the car was sold with a tow package. Nobody tested the diesel gate fix for owners who paid extra for a tow package. The car is down at least 10mpg with a light trailer and the shifting and power loss has made this Q7 almost useless to tow. That was not told prior to the diesel gate fix. Putting and Audi/vw/Porsche on the road with a light trailer after the diesel gate fix is a safety issue for everyone on the road.

See all problems of the 2014 Audi Q7 🔎.

Within 300 miles of the diesel recall modification the engine lost power at 70 mph and slowly drifted to lower speed. Additionally the transmission did not respond to manual shift to a lower gear (it stayed in 8th). After stopping the car and turning it off a "reset accoured" and the car operated normally for another 300 miles. The car again lost power and the transmission did not respond to manual shift to a lower gear. The car was taken to Audi and they "cleaned" the erg valve. The loss of power and lack of transmission accrued again at about 300 ,450 and 600 miles past the event of Audi working on the ergt. All of these events have taken place at interstate speeds and when the car is being operated on trips in excess of 300 miles.

See all problems of the 2013 Audi Q7 🔎.

While in motion on the highway, this vehicle intermittently loses power. A warning on the dash shows "gearbox malfunction" and the vehicle goes into limp mode. Once over so the side of the road, the vehicle can be turned off, and then restarted. Once restarted, no warning lights are visible and the vehicle drives as normal. This seems to happen in the summer months rather then winter and is sporadic. Sometimes it won't happen for a month. Other times it will happen 3 times in the same trip. It is dangerous to try and get over to the side of the road in high traffic traveling 60+mph. Internet searches on issues with Audi gearbox malfunctions shows that this is a problem, but no recall has been done.

If the vehicle is in neutral gear, it cannot be placed into drive gear, unless you depress the brake. When you place this vehicle in a car wash that pushes the vehicle in the neutral gear, we are unable to shift gear to drive unless you depress the brake. Applying the brakes in a moving car wash line is dangerous. If you do not quickly change gears, the vehicle could slip the rollers and potentially cause the vehicle behind it to strike the Q7.

My 2010 Audi Q7 has a serious braking issue. When the engine is started, if you put the vehicle into drive, it will roll forward and the brake will not stop the rolling. You must wait roughly 1 minute for the vehicle to not roll. The time is shorter in the summer, and longer in the winter. The brakes do not work, and it is as if the computer has a glitch. I will depress the brake, and the vehicle will roll forward about 10 feet. This happens in both reverse and forward. My concern is that one could start the car, immediately put it into gear, and hit a pendestrian, child, or other property and not be able to stop the car unless they intuitively know to put the car in neutral or park, which most drivers will not do. I am willing to show this to an NHTSA representative. I believe this needs to be investigated and Audi needs to recall these cars for a proper fix. I called Audi's north american hotline to report this, and the receptionist did not put me in touch with a manager or a safety representative. She said the car needs to go to the shop and be repaired. My auto mechanics say they can't repair this, and it is a manufacturer problem. Audi north America staff should have taken my information, passed it to a manager, and contacted me, but they refused to, saying it was a mechanical issue with my vehicle. I have no other options but to contact NHTSA. I have owned this car since 2014, I first noticed the problem then, and adapted to this problem. I should have told you much sooner than now. I apologize. I know how to deal with this problem, but if it is in any other Audis, there may be pedestrian injuries or deaths.

See all problems of the 2010 Audi Q7 🔎.

This is a tdi version of the Q7. The high pressure fuel pump failed during normal use and sent metal parts through the fuel lines, through the fuel filter and into the combustion chambers. As a result, the engine ceased and we were left stranded in the middle of the road on a winding canyon road. The engine block was damaged; the crank shaft bent, the pistons damaged the heads and many other parts were destroyed. The car was repaired by an Audi dealer and required all new fuel components (bumper to bumper) and a new engine. The car was in the shop for over a month.