Hi guys,

I'm at a bit of a loose end as to whats wrong with my 2003 (new shape) A3, and the dealer cant find the fault either.

At idle, the car sometimes not always misses a beat and jerks the engine forward, then puts itself right, misses a beat and so on and so on - it seems to do it more when its warming up.

The car has recently (for an oil leak) had the cylinder head and gasket, and throttle body replaced by the audi centre and i had the timing belt changed at the same time, but the fault occured before that was changed.

Guided diagnostics always come back as "no fault found"

Tonight however, when i stopped the car and took the key out, the engine lamp, handbrake lamp and battery lamp remained illuminated for approx 15-20 seconds then went out, however they operate as normal the next time i turn the key.

Has anyone experienced this problem or have any ideas as to what it might be, all help appreciated

PS. i'm told that the ecu is at the latest version

Thanks!

 

as for a tdi. not many of us know much about them cus they don't have them in the states. I would run a good fuel treatment through it. Other than that, I'm at a loss.

 

hi i also have the same problem dealer said it was an injector but made no difference then tried injector seals still the same. 4weeks later dealer says they have found fault its the ecu fitted that gave them 1200 hundred pounds and have to take it back to them as it is still not running right