One problem related to other fuel system has been reported for the 2004 Audi A6. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Audi A6 based on all problems reported for the 2004 A6.
When engine is cold, usually below 0 degrees fuel sprays from injectors. This could ignite on exhaust manifolds causing car fire.
| Other Fuel System Tank Assembly problems | |
| Other Fuel System Pump problems | |
| Other Fuel System problems |