Starting problems


Asked by Apr 15, 2016 at 08:40 PM about the 2005 Audi A4 2.0T quattro

Question type: Maintenance & Repair

I fill my tank and then go to turn on the car and it
won't turn on unless I push the gas pedal and it
won't do it ever again until I put in gas again.
What's wrong with it?

3 Answers


It could be the quality of the gas you put in the tank. Audi's prefer high grade fuel. If you put cheap and/ or low grade fuel, you may cause engine or fuel injection issues. Another option is there could be moisture in your fuel tank. Cheap gas can have higher levels of moisture. Auto part stores have fuel tank, fuel line, and fuel injector cleaners. That would be the least expensive avenue to try first. Then start putting only top quality and high grade fuel in your car. If it doesn't work, take it to a mechanic.

Tom Demyan

Not normal to push the accelerator pedal down to start. Any lights lit up on the dash? If not might be the spark plugs need replacing, or you have a vacuum line problem in the fuel system. Have your local garage inspect it for you.


Sounds to me like the vapor purge valve is clogged. Usually when this happens its one of two things. The purge valve which is behind the fender is clogged blocked or stuck from old age or debree. The second cause is often a break in the emissions line. Mine did this not as bad before but i found the pipe behind the drivers side rear wheel for the emissions system had rotted out for nearly 7-10 feet of the pipe and it was split right in two. Sure sign is the smell of gas when the car is running near that wheel.

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