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Fuel systemPart report

2020 Audi A6 Allroad Fuel system Problems

Complaints
1about this part
Share
13%of 8 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the fuel system of the 2020 Audi A6 Allroad, 13% of the 8 complaints for this model year.

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.

“While driving on the interstate, I received a warning about an electrical system malfunction. As I neared my home, I received warnings about transmission failure, suspension malfunction, steering malfunction, sensor failure, and more. After a tow to the dealership I was told it is a generator/alternator (?) failure and the part is on national backorder and may be 3 months or more.”

NHTSA complaint #11508031, filed 2023-02

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2021222%
2020113%

Other parts of the 2020 Audi A6 Allroad

Electrical system
6 complaints
Transmission and drivetrain
2 complaints
Forward collision avoidance
1 complaints
Lane departure
1 complaints
Other or unknown
1 complaints
Body and structure
1 complaints
Suspension
1 complaints

← All problems reported for the 2020 Audi A6 Allroad

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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