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Fuel systemPart report

2015 Audi A4 Fuel system Problems

Complaints
1about this part
Share
5%of 19 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 2015 Audi A4, 5% of the 19 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.

“Spark plug for damaged due to oil seeping into it. This could lead to overheating of engine or cylinders getting damaged potentially leading to vehicle malfunction when I drive. Audi inspected the part and recommended to reseal the top of the engine. There was a warning for check engine which led to identifying the problem”

NHTSA complaint #11643290, filed 2025-02

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2019220%
2018613%
2017611%
201619%
201515%
2014413%
201328%
2012316%
2011218%
201069%
200987%
2008116%
2007116%
2006103%
2005125%
20045630%
20035124%
200274%
200132%
200011%
199942%
199810%
199711%
199611%

Other parts of the 2015 Audi A4

Engine
10 complaints
Electrical system
3 complaints
Exterior lighting
2 complaints
Other or unknown
2 complaints
Air bags
1 complaints
Engine cooling
1 complaints
Forward collision avoidance
1 complaints
Body and structure
1 complaints
Transmission and drivetrain
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2015 Audi A4

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