2017 Audi Q7 Engine Problems

Car has a burnt cylinder from excessive oil consumption due to poor piston ring design. These engines are prone to failure to do carbon buildup on the cylinders which leads to poor PCV performance to exacerbate the problem. Audi dealership has confirmed my cylinder 3 has a burnt valve and requires a new engine.

I am submitting this complaint regarding a serious safety issue I experienced with my vehicle. Shortly after starting to drive, about 2 miles from my home, while traveling at approximately 25 mph, the vehicle suddenly began to shake violently and came to a complete stop at the intersection of Crescent Street and Astoria Boulevard. At that moment, I lost all control over the steering wheel—it completely locked up. The dashboard displayed the message: “Drive System Malfunction – Contact Service.” These diagnostic trouble codes (DTCs) appeared: •P2179 •P025C •P0087 •P0306 This incident posed a major safety risk, as I was unable to steer or move the vehicle in a high-traffic area. I am very concerned that this could happen again or to other drivers under more dangerous conditions. Please investigate this matter as it may indicate a serious defect that could affect others.

The issue is related to Audi TSB 2048402/3. 2017 Audi Q7 3.0T. First the an engine light appears, then get Drive System Malfunction Warning appears, then car misfires, then car goes into limp mode causing the car to rapidly slow down (while driving on a highway!!!!!). This is is common issue on the 2017 Audi Q7, code is P05A000 Active Grill Shutter "A" Stuck on. Which then triggers the Drive System Malfunction, misfire, and limp mode. Audi will not repair due to mileage on vehicle. Concern is this is a know issue and a safety concern.

The gasket seals and the seals on the cylinder are not sealed causing fuel to peak from fuel injectors

My engine just failed after over a year of having to put oil in. The car has 77K miles and has been regularly maintained. Audi used this as a "demo car" and after purchase we immediately had to put oil in and were told verbally this is not an issue. The excessive engine oil consumption caused this catastrophic engine failure our an independent and trusted mechanic reports the engine has failed and cylinder number five only has 30 pounds of pressure. Please advise on what I can do with Audi for repair. We also have a 2019 and are fearful this will happen to that car as well. Thank you.

According to the dealer’s diagnosis, a burnt and broken valve caused the car to shake violently while I was driving on the highway with my family, including our three children. Prior to this incident, there were no warning lights or error messages. Only after the shaking began did a “Drive System Malfunction” alert appear on the dashboard.

2017 Audi Q7 with approximately 112K miles consuming oil at a rate of approximately 1qt per 500-700 miles. Misfire occurred on highway and then cleared overnight. Took to dealer and had them swap all coil packs and spark plugs. Approximately 500 miles later, multiple misfires in cylinders 3,5, and 6 and loss of compression while driving on highway at 70 mph. Vehicle taken to dealership where they completed diagnostics. 0 psi compression in cylinder 6, damaged cylinder walls, and broken valve. Cost of repair estimated at $25K.

Drive system malfunction warning while driving on the highway at 75 mph and the car began sputtering, lugging, jerking and had to be manually shifted to get it safely off the highway. If we had been in traffic we would have been rear ended as the car drastically lost speed on the highway. Dealership initial diagnosis was a misfire in cylinder 4. Upon further inspection we were told that a piece of the exhaust manifold had broken off resulting in catastrophic engine failure and we needed to replace the long block at a quote of $32,000. Car had been serviced only at the Audi dealer and all Audi care maintenance had been completed. We had informed the dealer that the car was burning oil on two previous service visits and we were adding a quart every 1000 miles or so and we were told that was normal for a 2017 Q7 with over 80,000 miles on it. Last service inspection and Audi care package in September 2024 we were told the car was in great shape. Catastrophic engine failure in December 2024.

Oil consumption issue began June 2021 with my 2017 Audi Q7 with the 3.0 engine, we were at 78,841 miles. Our vehicle was always serviced at the dealer on the recommended schedule. The dealer stated high oil consumption of 1 quart per 1,000-2,000 miles was normal. The high oil consumption issues continued. At 99,559 miles the car began shaking on the way home from a routine oil change. They found cylinder 3 spark plug covered in oil and replaced all spark plugs to clear misfires. At 104,002 miles the N428 oil pressure regulation valve was replaced, which seemed to improve oil consumption temporarily, but gradually got worse with frequent top offs. On 1 December 2024 at 123,616 miles the car started to shake while traveling at 70mph on the interstate, with the engine lights on. The dealer found crusted spark plugs and identified that cylinder 1 had a burnt/broken exhaust valve due to excessive oil consumption and residue buildup. The required long block replacement would exceed the value of the car. Clearly a defect in the 3.0 Audi engine.

Driving with the family on interstate 81South when suddenly the car went from riding smoothly to a rough rumbling sensation. Then all sorts of alarms sounded and the engine light, oil light and system malfunction indicator light came on simultaneously. We pulled over immediately and turned the car off. We looked in the manual to check the severity of the indication lights. We wanted to determine if we could drive to the nearest exit. We started it back up to see if it was some sort of glitch. It remained so thankfully we were right near an exit and exited and called for roadside service. It was towed from Christiansburg, VA back to Roanoke Audi at 2006 Peterscreek Rd Roanoke, VA 24017 on Nov 9th. The dealership concluded that cylinder 1 was burned out with a possible damaged long block assy. I have had all services and taken great care of the car. However, in between services the car would always require an additional 1qt of oil.

Oil consumption issue began June 2021 with my 2017 Audi Q7 with the 3.0 engine. Dealer advised this was normal for high performance engines, and it could continue where every 1,000-1,500 miles would need a quart of oil. Vehicle was serviced at the dealer on their regular recommended schedule. With continued oil consumption issues this past year they did part 1 of their oil consumption test September of 2024. A few weeks later the car started to shake when started and the start/stop system malfunction light came on. In cylinder 3 they found oil on the spark plug and changed out the spark plug and ignition coil. A week later the car began shaking again and they performed part 2 of their oil consumption test. It showed oil consumption a 3.61 quarts per 1,000 miles. They then performed a flush of the engine, and said that cylinder 3 was burned up and the engine had to be replaced. The Service manager after seeing how the car was serviced over the 6 years that there has to be a defect in the 3.0 Audi engine.

The contact owns a 2017 Audi Q7. The contact stated while driving at an undisclosed speed, the low oil level warning light illuminated with a message that the engine was 1-quart low on engine oil. The contact added 1-quart of engine oil. However, after driving 1,000 miles, a message indicated that the engine was 1-quart low on engine oil. The contact became aware that the vehicle was consuming an excessive amount of engine oil. The low oil warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic to be diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 111,000.

Engine malfunctioned with 126,292 miles on it after always servicing it at dealer. Diagnosis was "broken valve". This was after communicating with dealer regarding excessive oil consumption and "drive system malfunction". Dealer repaired spark plugs.

Oil consumption increased over time to 1qt per 400 miles causing engine misfire in cyclinder 5 then 2,3. Engine now requires exhaust valve replacement and or complete replacement or overhaul at 140k mileage. Problem started at 90k miles.

My 2017 Audi Q7 3.0T with 99k miles and it consumes oil excessively. I am having to add a quart of oil about every 500-600 miles. My local german auto repair shop has told me, in my case that it is extreme & I should be worried. I’ve seen many other people with the same engine with oil consumption & I know it can cause the engine to fail. This needs to be addressed by someone due to how common this problem is with these engines.

PCV valve and PCV solenoid failure. Covered under an Audi extended warranty for 2013-2016, but not 2017. Exactly same failure.

Cylinder 2 began to misfire at highway speeds. Diagnosed with a burnt exhaust valve in the engine. Possibly also due to the high oil consumption of greater than 1 quart of oil every 1000 miles.

Engine mounts are leaking at 118,000 mi

Engine mounts are failing on Audi Q7's at high rates just out of warranty. This is resulting in costly repairs to owners at extremely low mileage. On mine the engine mounts were shot at 54k miles and results in clunking from the engine moving around and shifting issues in the transmission. Audi is aware of the issues and is choosing to ignore it.

Car issued an alert for Low Coolant, I checked next morning only to find that the coolant tank was empty. This warning could have alerted long back when the level fell below "Min" marker. Owners cannot notice this leak because the coolant doesn't drip on the floor. Took it to an independent service center who alerted me about this issue. I researched and noticed that there's been a lot of complaints on forums for 2017 Audi Q7 3.0 for coolant leak cause by the water pump, which always needs replacement. The replacement costs by AUDI are upwards of US $1300. This issue seems like a regular pattern and can cause an engine failure. AUDI should take responsibility and fix these cars.