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Electrical systemPart report

2020 Audi A6 Allroad Electrical system Problems

Complaints
6about this part
Share
75%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 6 complaints about the electrical system of the 2020 Audi A6 Allroad, 75% of the 8 complaints for this model year. 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.

“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

“While driving I received two messages to contract service first that the “electrical system malfunction” and then a “starting malfunction” which was fallowed by a battery light and a check engine light. I contacted my local dealer they advised I have it towed in immediately. The car was towed in and it’s a “starter generator” and is back ordered with no eta. The car is not drivable and is at the dealer for an unknown amount of time.”

NHTSA complaint #11559037, filed 2023-12

“I have a 2020 All Road. Received message driving close to my home to contact service due to electrical malfunction and made it to my driveway. This was on a Sunday and no service center was available. Car lost its HVAC and auto stop mechanism on the way home and parked it in the driveway away to be towed. This morning able to start vehicle but received numerous warnings as above to also include low battery due to no charging and finally a message (while placing it on a flat bed tow truck) to stop immediately and not drive the vehicle. …”

NHTSA complaint #11526617, filed 2023-06

“My electrical system failed and the car died on the freeway. This is now recognized as a chronic problem- a software bug in the 48 volt mild hybrid system- with several Audi models, including this A6 Allroad. The bug apparently damages the vehicles alternator, which must then be replaced. There is a several month backorder on this part, so hundreds if not thousands Audis remain unrepaired on the lots. They are dying on roads across the USA on a daily basis.”

NHTSA complaint #11503455, filed 2023-01

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2021444%
2020675%

Other parts of the 2020 Audi A6 Allroad

Transmission and drivetrain
2 complaints
Forward collision avoidance
1 complaints
Fuel system
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 29, 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