This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
full bulletin at NHTSA ↗2016 Audi A6 fuel system problems
moderate 3 complaints filed with NHTSA · avg repair $1,200 · see fuel system across all vehicles →
Complaints
3
Recalls
0
Avg fix
$1,200
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering fuel system on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin contains repair instructions for when the customer has problems filling the fuel tank and DTC P045100, P044100, P202500, and/or P045300 is present.
full bulletin at NHTSA ↗This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
full bulletin at NHTSA ↗The informational bulletin explains why during COVID-19 there is winter-blend fuel during a warmer season and causing some issues.
full bulletin at NHTSA ↗This bulletin contains repair instructions for when the customer has problems filling the fuel tank and DTC P045100, P044100, P202500, and/or P045300 is present.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 0 most recent
Had fuel system trouble with your 2016 Audi A6?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the fuel system problem on the 2016 Audi A6?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
At what mileage does the fuel system typically fail?
Based on the 3 complaints filed, fuel system issues most often appear around 59,120 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2016/Audi/A6.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.