Hi all,
Our 2004 tdi 90 A2 recently reached 60,000 miles and we had its timing belt changed a few weeks ago by a reputable ex-Audi mechanic.
A few days later the car began to idle roughly after a 5 minute journey from being left overnight. If it makes any difference the car had just had a full tank of diesel after being run low the day before.
The rough idle resolved itself after a few minutes, but the A2 now has an occasional engine stutter or misfire. This happens in 2nd or 3rd at around 2000rpm and lasts for a few seconds. It can happen a few minutes after the car has been started or after a long motorway journey. Since the rough idle there have been no warning lights or error messages on the dash. I've run some diesel redex through the tank, but it has made no difference. The A2 was serviced around 10,000 miles ago, including a new fuel filter. It is used for regular 100 mile motorway runs and has so far had the full 25,000 or miles between variable services.
I am wondering if it is likely that something which had to be removed or disconnected to reach the timing belt may have been 'upset'. eg. a wiring harness or hose.
I haven't yet investigated beyond visually checking that there was nothing obvious wrong under the bonnet.
Any ideas where to start? I am guessing a diagnostic code read.
Thank you
Andrew
Our 2004 tdi 90 A2 recently reached 60,000 miles and we had its timing belt changed a few weeks ago by a reputable ex-Audi mechanic.
A few days later the car began to idle roughly after a 5 minute journey from being left overnight. If it makes any difference the car had just had a full tank of diesel after being run low the day before.
The rough idle resolved itself after a few minutes, but the A2 now has an occasional engine stutter or misfire. This happens in 2nd or 3rd at around 2000rpm and lasts for a few seconds. It can happen a few minutes after the car has been started or after a long motorway journey. Since the rough idle there have been no warning lights or error messages on the dash. I've run some diesel redex through the tank, but it has made no difference. The A2 was serviced around 10,000 miles ago, including a new fuel filter. It is used for regular 100 mile motorway runs and has so far had the full 25,000 or miles between variable services.
I am wondering if it is likely that something which had to be removed or disconnected to reach the timing belt may have been 'upset'. eg. a wiring harness or hose.
I haven't yet investigated beyond visually checking that there was nothing obvious wrong under the bonnet.
Any ideas where to start? I am guessing a diagnostic code read.
Thank you
Andrew