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Fuel systemPart report

2009 Audi A4 Fuel system Problems

Complaints
8about this part
Share
7%of 120 total for the year
Median mileage
37,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the fuel system of the 2009 Audi A4, 7% of the 120 complaints for this model year. Where a mileage was given, the median is 37,000 miles. 1 a fire, according to the filers.

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.

“Two faulty mis fires caused car to misfire and run rough and jolt. Car was towed to the closest Audi dealership for repairs. Subsequently, within the next 9 months, the care again exhibited close to the same symptoms and the car was again towed to the closest Audi dealership. This time, the intake manifold was cracked and was replaced. With a service bulletin out on this vehicle on these exact issues, I was still charged a $250 deductible per incident ($500 total) on my extended warranty to replace both the injectors and the intake manifold. …”

NHTSA complaint #10748380, filed 2015-08, 39,000 miles

“Since the moment I purchased this vehicle in 2012, I've had nothing but constant issues. This vehicle has stopped in the middle of the street on the freeway (surprised I was not hurt because of this). I've had engine lights on, check oil level lights on, alternator going bad, esp lights on, bearings replacement. You name it, its happened. I took my Audi in for an appraisal and turns out the transmission is going bad, had warranty and Audi services did not mention any issues with my transmission, wasn't until my warranty had expired when I found this out. This vehicle should be recalled.”

NHTSA complaint #10886168, filed 2016-07, 35,000 miles

“I was driving my new 2009 Audi A4 which had less than 3500 miles on it at the time when first the transmission changes began to be very abrupt. I thought nothing of it at first and traffic on the westside highway in new york city was fairly congested so the speeds were not that high. Suddenly, the transmission stops shifting all together and all the lights car's dashboard turn on before the engine simply shuts off I roll to a halt in the center lane of the westside highway and use the battery to turn on my hazard lights. …”

NHTSA complaint #10345120, filed 2010-07, 3,413 miles

“Recently done oil change with synthetic oil (Audi recommended) which should last for 10,000 miles before another oil change is needed. Unfortunately after a month and half of driving oil levels are showing half of the oil gone. Engine is making noise and lot of co2 being clogged up. Running heavy causes to use lot of fuel. Feels as if engine may get too hot after eating up excess amount of oil.”

NHTSA complaint #10561556, filed 2014-01, 34,500 miles

“My car has a leaking high pressure fuel leak from the high pressure hose right at the top of the engine block at the rear of the engine. The steel line connects directly to the filter and is leaking from the stainless steal line. The power steering metal hose lines are incorrect from the factory and do not supply enough pressure in the line to keep the steering wheel from a very harsh low speed shudder when turning. The lower control arm bushings fail at very low mileage. None of these issues have been acknowledged on this year car. …”

NHTSA complaint #10888525, filed 2016-07, 96,546 miles

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 2009 Audi A4

Engine
44 complaints
Air bags
33 complaints
Steering
15 complaints
Other or unknown
7 complaints
Body and structure
6 complaints
Transmission and drivetrain
6 complaints
Visibility (wipers, defrost, mirrors)
6 complaints
Engine cooling
5 complaints
Suspension
5 complaints
Exterior lighting
4 complaints
Electrical system
3 complaints
Vehicle speed control
3 complaints

← All problems reported for the 2009 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