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Fuel systemPart report

2021 Audi Q8 Fuel system Problems

Complaints
6about this part
Share
20%of 30 total for the year
Median mileage
60,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the fuel system of the 2021 Audi Q8, 20% of the 30 complaints for this model year. Where a mileage was given, the median is 60,000 miles. 1 recall campaign on record is filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“At approximately 52,000 miles, on August 11,2026 (or earlier), my vehicle developed a coolant leak that was traced to a failed coolant shut off valve. The coolant shut-off valve failure allowed coolant to migrate into the vacuum harness, vacuum reservoir which contaminated the water pump. This resulted in the vacuum system becoming filled with coolant, compromising components that rely on vacuum pressure to function correctly. …”

NHTSA complaint #11757601, filed 2026-08

“The contact owns a 2021 Audi Q8. The contact stated that while driving at various speeds, the instrument panel failed to operate. The contact stated that while driving 70 MPH, the failure recurred. The contact received notification of NHTSA Campaign Number: 25V201000 (Electrical System), and the vehicle was taken to the dealer, where the recall repair was performed; however, the failure recurred the same day while driving from the dealer. Additionally, the contact stated that the vehicle stalled while driving at various speeds. …”

NHTSA complaint #11687263, filed 2025-09, 60,000 miles

“The contact owns a 2021 Audi Q8. The contact received notification of the NHTSA Campaign Number: 22V516000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the issue. The contact had not experienced a failure. Parts distribution disconnect.”

NHTSA complaint #11499018, filed 2022-12

“The contact owns a 2021 Audi Q8. The contact received notification of NHTSA Campaign Number: 22V516000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.”

NHTSA complaint #11495244, filed 2022-11

“The contact owns a 2021 Audi Q8. The contact received notification of NHTSA Campaign Number: 22V516000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The dealer was made aware of the issue and the contact was informed that the recall could not be serviced for several months. The manufacturer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.”

NHTSA complaint #11503676, filed 2023-01

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2021620%
2020621%
20191211%

Other parts of the 2021 Audi Q8

Electrical system
13 complaints
Engine
6 complaints
Transmission and drivetrain
5 complaints
Back-over prevention (rear camera)
3 complaints
Forward collision avoidance
3 complaints
Other or unknown
3 complaints
Steering
3 complaints
Lane departure
2 complaints
Brakes
1 complaints
Exterior lighting
1 complaints
Seat belts
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2021 Audi Q8

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology