Check a vehicle VIN check Latest recalls Latest complaints Common problems Rankings Compare vehicles Recall roundups All makes Guides Share your experience
Theme

Engine & cooling

2004 Audi A6 Engine problems

Owners have filed 4 complaints about the 2004 Audi A6's engine & cooling with NHTSA - 11% of all its complaints, most recently on June 8, 2015. They describe 1 crash, 1 fire and 1 injury. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Complaints
4
Recalls
0
Crashes
1
Fires
1
Injuries
1
Deaths
0

Engine complaints

Engine & coolingFire

Tl* the contact owned a 2004 audi a6. While driving at 20 mph, smoke appeared from the engine compartment and the vehicle caught fire. A police report was filed and there were no injuries reported. The vehicle was destroyed. The vehicle was not included in nhtsa campaign number: 06v198000 (electrical system). The manufacturer was not made aware of the failure. The failure mileage was 103,000.

Filed Incident EngineNHTSA 10724137
Engine & cooling

REPLACED CYLINDER BANK 1 RIGHT SIDE! *TR

Filed Incident Engine and engine coolingNHTSA 10447875
BrakesEngine & coolingAirbagsCrash1 injury

Tl*the contact owns a 2004 audi a6 avant. The contact stated that the check engine light had been illuminating intermittently. The dealer stated that the contact should not worry about the light. While driving 65 mph, the contact swerved to miss a deer and lost control of the vehicle. It began to rock back and forth and the brakes were inoperative. The contact hit guardrails on both the driver and passenger sides. The vehicle then tipped on its side and went into a ravine. The engine was still running and the...

Read the full complaint

wheels were still spinning. The air bags did not deploy. The contact suffered injuries to the collar bone, ribs, a concussion, and lost teeth. The dealer stated that there could have been a problem with the computer. The vehicle was destroyed. The current and failure mileages were approximately 190,000. Updated 04/08/11

Filed Incident Service brakes, hydraulic · Engine and engine cooling · Air bagsNHTSA 10377974
Engine & cooling

I am writing about my 2004 a6 avant, which has 78,000 miles. At a recent oil service at an independent garage, it was suggested that there was a problem with the catalytic converters. Exhaust was leaking from both sides, I was told. I took the car to my audi dealer, where they checked the exhaust system. The mechanic who examined the car concurred that the catalytic converters needed to be replaced. Under a federally mandated warranty, the catalytic converters are covered for eight years or 80,000 miles. Yet the dealer has declined to cover replacement because the "check engine" light was not on. I was given a repair estimate of $2,400. *Tr

Filed Incident Engine and engine coolingNHTSA 10356542

Audi A6 engine complaints by year

A6 engine problems, every year

Had a engine problem with your 2004 A6? Tell other owners.

Your experience goes live straight away and helps every owner and buyer who checks this vehicle. Anonymous, free, no account.

Overall, how would you rate it? *

0/4000 · Please leave out names, phone numbers and your full VIN.

By posting you confirm it's your own, honest experience and agree to the rules. Safety defect? Also report it to NHTSA - that's how recalls start.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

Owners helping owners

Know before you drive.

Every experience you share - good or bad - shows on that vehicle's page and helps the next owner and buyer. Two minutes, anonymous.

Share your experience