Audi Q7 oil consumption problems

Filed Nov 7, 2026 · Engine · IL

Progressive oil consumption between late 2021 thru early 2026 with ultimate engine failure. Each year the vehicle required more non-routine oil "top offs". There was reportedly no visible oil under the hood so I reassured by the dealership that it was normal oil consumption for a European vehicle. I had not seen any oil on my garage floor or on my driveway. I was unaware that VW-Audi vehicle had an issue with excessive oil consumption and the dealership did not disclose it nor address my concerns with an oil consumption test. The vehicle seemed to run fine otherwise. In January of 2026, the vehicle chocked up driving no more than 20-25 miles per hour while I was on the expressway. I made it home without incident. The car is has not been drivable since this time. Independent inspection revealed piston and engine failure most likely due to excessive oil consumption.

Filed Oct 25, 2026 · Engine · NC

In XXX, my 2017 Audi Q7 3.0T unexpectedly lost engine power while traveling approximately 70 mph on a highway in [XXX]. A "Drive System Malfunction" warning appeared. The driver pulled over, shut off the engine, and restarted it; the vehicle then drove normally. The sudden reduction in power at highway speed created a risk of collision with surrounding traffic. The precise cause is UNKNOWN. I reported the highway-speed loss of power and warning to Audi Wilmington. At its XXX visit (102,255 miles), the dealership documented the warning and multiple engine misfire codes. It identified a vacuum leak at a broken oil-fill pipe neck, replaced the pipe, cleared codes, and reported no issue during its test drive. The intermittent power loss did not recur during that visit. The vehicle also had recurring excessive oil consumption. In XXX (104,261 miles), Audi Wilmington found it approximately 1.5 quarts low and documented possible piston-and-ring replacement if proposed treatments failed. Those proposed repairs were not performed. In XXX (approximately 109,320 miles), the vehicle again showed a Drive System Malfunction warning and check engine light. Maguire Audi documented multiple misfires and a persistent cylinder #2 misfire after service, and suspected internal engine damage. The vehicle has been out of service since then. Independent testing in XXX confirmed cylinder #2 had 35 PSI compression and 100% leak-down, with part of an exhaust valve missing and oil on the piston. The connection, if any, between the XXX power loss and later engine damage is UNKNOWN. Authorized Audi dealers and an independent shop have inspected the vehicle; I am unaware of any inspection by police, insurers, or the manufacturer. The vehicle remains in my possession and is available for inspection. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 7, 2026 · Engine · VA

Our 2015 Audi Q7 start using a lot of oil under 100,000 miles. Dealership replace turbocharger oil seals but that didn't fix the issue. The engine failed oil consumption test and was told the vehicle is safe to drive but will need to add oil every 1,000 miles. Engine failed three months later. Contact Audi of North American about the problem and ask about replacement engine because a vehicle of that type quality should not be having those type of issuea with low mileage.

Filed Sep 12, 2026 · Engine · IL

Vehicle began displaying low engine oil level warnings between scheduled oil changes beginning in 2021, at approximately 50,000 miles. Condition was reported to the authorized Audi dealer on multiple occasions. Dealer added oil each time and stated there was no visible oil leak. No oil consumption test was performed and no repair order documenting the concern was provided. Oil loss worsened progressively through 2024. Engine failed in January 2026 at approximately 101,000 miles. Estimated repair cost $18,000–$22,000.

Filed Aug 29, 2026 · Engine · PA

The 2017 Audi Q7 Prestige was purchased on November 7,2016. Since the purchase, all service was provided by one or the other of two Audi dealerships. During this period, the Audi recommended 10K, 20K,30K, 40K, 50K, 60K, 70K, and 80K mile services had all been performed. In the almost ten years that I owned the car, the oil and oil filter were changed 11 times at one or the other of the two dealerships. The mileage interval between oil changes was 6,383 miles on average with a maximum interval on 8,177 miles; the time interval between oil changes was 320 days on average with a maximum of 399 days. The engine oil cooler valve had shorted out internally and was replaced in April 2025 at 58,225 miles. By the end of August 2026, the car had travelled 71,375 miles. From 60,000 miles on, oil consumption has gradually increased to alarming levels:1-quart every 700 miles. On August 22, while driving at highway speed on the Pennsylvania turnpike near Pittsburgh, I experienced a sudden loss of power, rapid deceleration, rough running of the engine, and a “Drive System Malfunction “indicator. Fortunately, I was able to slow the vehicle and safely move off the highway. The car was towed ($396) to an Audi dealership. The technician reported that the diagnostic scan showed a misfire code for cylinder #2; and, upon inspection, the #2 spark plug was found to be excessively oil-fouled. When the technician swapped the coils and spark plugs from cylinders #2 and #3, the misfire remained on cylinder #2. A compression test on cylinder #2 showed 120 psi – below normal, but not low enough by itself to definitively condemn the engine. The cost for this analysis was $500. I declined to invest in further teardown of the engine. Audi purchased the vehicle for $4,000. My experience appears similar to others with the 2017 Audi Q7 with the 3.0 engine. Exceptionally poor engineering and total lack of customer care!

Filed Jul 31, 2026 · Electrical, Engine · CA

My 2017 Audi Q7 with the 3.0T engine has experienced repeated engine/ignition system failures. The vehicle displays a "System Malfunction" warning light accompanied by shaking and stalling. This same malfunction has occurred at least 3 separate times over the past few years. Each time, a repair shop diagnosed and replaced faulty ignition coils, and the vehicle ran normally for a period of time before the identical malfunction returned. The vehicle is currently inoperable due to the most recent occurrence. This creates a safety risk because the stalling and shaking can occur while driving, with no clear warning beyond the malfunction light appearing at the same time as the symptoms begin. A stall or loss of power while in motion, especially in traffic or on a highway, could lead to a collision. The problem has been confirmed and repaired multiple times by an independent European auto repair specialist, who stated this is a known, recurring issue with this engine/model. The vehicle has not yet been inspected by the manufacturer directly. Separately, the vehicle has also developed excessive oil consumption, requiring approximately 2 gallons of oil added roughly every 6 weeks, with the frequency increasing over the last 2 months. I am uncertain whether the oil consumption and the recurring coil/ignition failures share a common root cause, but both issues are ongoing and unresolved. The vehicle and its components are available for inspection upon request.

Filed Jul 1, 2026 · Engine, Fuel system · TX

My 2018 Audi Q7 3.0T Quattro is experiencing extreme oil consumption — dropping from full to minimum level in approximately 230 miles. This is approximately 14x beyond Audi's own threshold for excessive oil consumption of 0.5 quarts per 1,000 miles. Documented timeline: May 2026 (88,692 miles): Oil change required 2.2 extra quarts beyond standard 7.2qt fill. Low oil light triggered during highway travel. June 27, 2026 (90,200 miles): Authorized Audi dealer formally documented "oil consumption is very high" in their service system and scheduled an official oil consumption test. June 28, 2026 (90,351 miles): Audi MMI system showed oil near minimum after only 151 miles. June 30, 2026 (90,397 miles): Audi MMI showed oil at Stage 2 warning after 197 miles. June 30, 2026 (90,430 miles): Audi MMI showed oil at minimum line after 230 miles total. All readings documented with timestamped photographs from Audi's own MMI system. The authorized Audi dealer has documented repeated oil top-offs in their service system. Audi USA Customer Care was contacted on June 30, 2026 and denied goodwill repair citing no active recall and vehicle out of warranty. An open case has been filed with Audi USA. The engine lubrication system appears defective. Oil dropping to minimum in under 230 miles without adequate warning poses serious safety risk of catastrophic engine failure while driving at highway speeds. The authorized Audi dealer has scheduled an official oil consumption test and inspection for July 2, 2026. Results will be available upon request. Vehicle is available for inspection upon request.

Filed May 14, 2026 · Engine · WI

the first indication of an issue was oil consumption. It was using more oil than usual around the 70K mile mark. Then it started misfiring, and soon after a knocking noise coming from the engine. There are no check engine light on, after bringing it in for diagnostics, it read that it was a spark plug, once they got into the engine they discovered the cylinder had been stripped from the piston. Yes the diagnostics came from our foreign car mechanic. no, it has not been inspected by the manufacturer or police. Just the symptoms. sometimes the light would come on, and then it would go off. At this point it is off. All of this started in the fall of 2025.

Filed Feb 9, 2026 · Engine · CA

The car has always (including during warranty period) required addition of engine oil in between scheduled maintenance interval, and problem got worse as function of age/miles. Audi has diagnosed this issue and it has been determined that the engine consumes excessive oil and requires new piston skirt. The cost of the labor is not something Audi is willing to pay for and there is a class action lawsuit. Audi has sent an email/letter to certain owners of the vehicle. My VIN for some reason wasn't included but now Audi has verified, but not willing to pay for the cost to replace the engine or fix it.

Filed Feb 4, 2026 · Engine · CA

Excessive oil consumption and potential for engine to blow up