2018 Audi Q7

143 complaints on file, page 1 of 8.

1. Filed Sep 25, 2026Failure Sep 1, 2026Canfield, OHSuspension

   I have a 2018 Audi Q7 3.0L with 86K miles on it. I discovered 1 of the rear coil springs was broke and both rear perches were very rusted. I had a local mechanic, who specializes in AUDIs, replace both rear springs and perches with OEM parts. After replacing everything, the mechanic went to take the car on a test drive. He said one of the new springs broke right away. The spring that broke was in the exact same location as the one that originally broke and it broke in the EXACT same way.

   NHTSA complaint 11766848
2. Filed Sep 12, 2026Failure Jan 14, 2026Frankfort, ILEngine

   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.

   NHTSA complaint 11763767
3. Filed Jul 22, 2026Failure Jan 2, 2026Montgomery, VTEngine

   Start/stop malfunction failed; yes it is available for inspection. Driving down highway vehicle stopped with 2 adult passengers and 2 children. Yes 3 mechanics completed a diagnostic. Vehicle has not been inspected by insurance, manufacturer or police but by VW dealer, and two registered mechanics. No other warnings or symptoms.

   NHTSA complaint 11752232
4. Filed Jul 13, 2026Failure Jul 12, 2026New Canaan, CTSeats

   The right rear passenger heated seat in my 2018 Audi Q7 overheated and burned through the leather and foam. Fortunately, my disabled [XXX] daughter, who normally sits in that seat, was not in the vehicle at the time. The failure occurred without warning and during normal use. This defect presents a serious safety risk and could have caused injury or fire. Request: Please investigate this issue in the 2018 Audi Q7 rear heated seats and determine whether a recall or repair campaign is necessary. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11750098
5. Filed Jul 1, 2026Failure Jun 30, 2026Frisco, TXEngine, Fuel/propulsion system

   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.

   NHTSA complaint 11747856
6. Filed May 23, 2026Failure May 23, 2026Santa Maria, CAExterior lighting

   I AM GETTING FRONT LEFT SIDE MARKER LIGHT FAULTY PROBLEM. I WAS TOLD THIS IS VERY COMMON FOR 2018 AUDI Q7. PLEASE INVESTIGATE THIS ISSUE AND SEE IF I AM QUALIFIED TO GET THIS REPLACED BY AUDI. APPARENTLY, THE REPLACING THE LAMP ISN'T EASY BUT WOUDL REQUIRE TO REPLACE THE WHOLE LIGHTING FIXTURE WHICH COULD COST OVER $2K. THANK YOU.

   NHTSA complaint 11739746
7. Filed May 19, 2026Failure May 13, 2026Portland, MEExterior lighting

   Parking light defective message on dash board. Looked at the light and all lights present. Talked to a dealer and the headlight assembly to replace is 6K plus. For a small yellow side light inside of headlight that is still on, but the message on dashboard says otherwise. Was told that it isn't outputting enough light power.

   NHTSA complaint 11738684
8. Filed Apr 13, 2026Failure Jun 13, 2025Alexandria, VAEngine, Unknown or other

   I am reporting suspected odometer fraud on my 2018 Audi Q7 3.0T Prestige (VIN: [XXX] ). Between May 8 and June 13, 2025, while I was the sole driver of the vehicle, Audi dealership service records show an odometer increase of 5,282 miles (from 78,260 to 83,542). However, independently verified GPS trip data from the Audi Connect system confirms I drove only approximately 2,103 miles during this period — a discrepancy of approximately 3,178 miles. The vehicle was serviced at two Penske-owned dealerships: Audi of Arlington (3200 Columbia Pike, Arlington, VA 22204) and Audi of Chantilly (14839 Stonecroft Center Ct, Chantilly, VA 20151). Only authorized dealer diagnostic equipment can alter odometer values. This manipulation resulted in the wrongful denial of my extended warranty coverage and a $37,567.16 out-of-pocket engine replacement. I have a fully documented demand letter with ten supporting exhibits including service records, Audi Connect trip data, and a detailed timeline. The dealerships did not respond to my demand letter. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11730885
9. Filed Apr 7, 2026Failure Mar 29, 2026Blaine, MNSuspension

   I’m reporting a serious safety issue with my 2018 Audi Q7. Both rear suspension springs failed suddenly while I was driving at highway speeds 70 MPH, with no warning at all. This was extremely dangerous—I almost lost control of the vehicle when it happened. The rear of the car dropped and handling became unstable immediately. There were no prior signs, noises, or issues leading up to the failure. This kind of failure should not happen under normal driving conditions, especially on a vehicle like this. Having both springs fail at the same time creates a major safety risk not only for me but for others on the road. I had to replace both rear springs at my own expense. Based on what I’ve seen, this may be a known issue and not just a one-time occurrence. I’m asking NHTSA to look into this problem and determine if there’s a defect with the suspension system on the 2018 Audi Q7 that could require a recall or further action.

   NHTSA complaint 11729693
10. Filed Feb 12, 2026Failure Dec 2, 2025El Portal, FLExterior lighting

    ALERT " Left Front side marker light defective" see owner manual. That is the message

    NHTSA complaint 11717586
11. Filed Feb 9, 2026Failure Feb 13, 2020Rancho Mission Viejo, CAEngine

    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.

    NHTSA complaint 11716861
12. Filed Feb 4, 2026Failure Jan 16, 2020Rancho Mission Viejo, CAEngine

    Excessive oil consumption and potential for engine to blow up

    NHTSA complaint 11715434
13. Filed Jan 8, 2026Failure Oct 3, 2025Brooklyn, NYElectrical system, Exterior lighting

    Left Front side marker light faulty. is the warning on the dashboard - I have noticed there is a recall I believe 2017 2018 for the same part and this is on a 2019 so it's obviously the part it actually says if there's a software fix

    NHTSA complaint 11709667
14. Filed Dec 18, 2025Failure Dec 17, 2025Lancaster, PAFuel/propulsion system

    The crankcase ventilation valve is malfunctioning resulting in excessive oil consumption and unsafe idling. The Extended Warranty dated 5/24/19 with Number AWA-19-03 should be extended to other model years.

    NHTSA complaint 11705971
15. Filed Nov 28, 2025Failure Nov 27, 2025Auburn, MEExterior lighting

    Right Front Parking Light Defective

    NHTSA complaint 11701912
16. Filed Nov 22, 2025Failure Nov 1, 2025Manchester, NHEngine

    2018 Audi Q7 piston melting diagnosed by a certified mechanic due to excessive oil consumption due to defective pistons. A class action suit was filed. And a warranty extension extension issued. There is no record of a warranty extension and should be. Please advise

    NHTSA complaint 11700992
17. Filed Nov 20, 2025Failure Oct 6, 2025Fairview, PAEngine

    This vehicle developed low oil alerts within 6 weeks of me receiving it with normal city driving. Multiple testing visits and comprehensive consumption testing later, it continued to have the low oil alerts very frequently and various random malfunction alerts like parking brake alert etc. For each complaint I took it to the dealership and did whatever they recommended but no eventual resolution was found. Early October this year, in the middle of traffic multiple alerts came on including drive system malfunction, parking brake malfunction and start stop malfunction. So many that the whole console just lit up and the car started rocking in the middle of traffic and I had to slow down to keep the vehicle in control. The car was rocking visibly and I had difficulty in maneuvering it to a safe location . I contacted the dealership and they gave me an appointment 4 weeks out saying that since the lights were solid and not flashing I could choose to drive the car. However it didn’t look safe to drive so I didn’t use it thereafter. They later told me after a diagnostic evaluation that the engine needed to be replaced as the slapping piston rings had scraped the cylinder walls.

    NHTSA complaint 11700557
18. Filed Nov 19, 2025Failure Nov 12, 2025South Orange, NJEngine

    Catastrophic engine failure, this occurred 2 weeks after a service appointment where nothing was detected. The car only had 86,000 miles and it is unrepairable. We have now found that this could be due to a design flaw in this model which we were unaware of.

    NHTSA complaint 11700458
19. Filed Nov 18, 2025Failure Oct 31, 2025Spring Grove, PAEngine

    I am reporting a progressive oil consumption defect that led to a catastrophic engine failure in my 2018 Audi Q7. The vehicle was purchased Certified Pre-Owned (CPO). I reported the excessive oil use to an Audi dealer. The dealer attempted to address the issue by performing an engine cleaning/flush, but the engine failed shortly afterwards. Over time, the vehicle required frequent top-offs between service intervals. Eventually, the engine suffered a mechanical failure, resulting in a broken exhaust valve and internal engine damage while driving on the highway. The Audi dealer provided a repair estimate of approximately $12,000. Audi of America offered 40% assistance to make the repair, but does not recognize the underlying excessive oil consumption issue. Furthermore, the proposed repair only replaces the damaged valve and related components, but does not address the underlying excessive oil consumption that caused the failure. This means the vehicle may still: •unexpectedly run low on oil, •lose power while driving, •suffer additional internal damage, or •again experience sudden engine failure while driving. These conditions can cause dangerous drivability issues, including loss of acceleration and potential stalling at highway speeds. This appears to be a serious safety-related defect involving lubrication failure, component breakage, and potential loss of power. I am requesting that NHTSA review this issue to determine whether similar failures are occurring in other Audi Q7 vehicles with the 3.0T engine.

    NHTSA complaint 11700218
20. Filed Nov 11, 2025Failure Oct 30, 2025Cary, NCExterior lighting

    The console displays side marker light defective warning, but both the side marker lights are working

    NHTSA complaint 11698838