Nufab
Registered User
Hello all...
I have a 2005 A4 Avant, 2.0 TDi 140 PD (BLB engine), with 177,000 on the clock. I've had it for nearly 5 years and it's been great, but 6 months ago it developed a really rough idle. It now takes a while to start, runs rough for the first 30secs or so, and settles down to a smooth idle. Once it warms up, its rough enough when idling to shake the car.
It then will shudder under load in 4th, 5th or 6th when the engine is doing under 2000rpm. Its really violent if you accelerate hard. Above that it's smooth again. Again, this only happens when the engine is warm, when its cold it's fine.
Power is fine, car pulls really well to the redline.
I've had the flywheel and clutch changed in January as I'd thought this was the problem (and it did need doing, clutch was slipping a lot..) but it's not solved this side of things.
Basically the car is really nice but this is driving me mad.
I've read various causes, but not sure what it'll be. Any ideas are welcome! It's not been on VCDS, but I was intending to get hold of a cable and do a scan and check the cam timings.
Thanks,
Chris
I have a 2005 A4 Avant, 2.0 TDi 140 PD (BLB engine), with 177,000 on the clock. I've had it for nearly 5 years and it's been great, but 6 months ago it developed a really rough idle. It now takes a while to start, runs rough for the first 30secs or so, and settles down to a smooth idle. Once it warms up, its rough enough when idling to shake the car.
It then will shudder under load in 4th, 5th or 6th when the engine is doing under 2000rpm. Its really violent if you accelerate hard. Above that it's smooth again. Again, this only happens when the engine is warm, when its cold it's fine.
Power is fine, car pulls really well to the redline.
I've had the flywheel and clutch changed in January as I'd thought this was the problem (and it did need doing, clutch was slipping a lot..) but it's not solved this side of things.
Basically the car is really nice but this is driving me mad.
I've read various causes, but not sure what it'll be. Any ideas are welcome! It's not been on VCDS, but I was intending to get hold of a cable and do a scan and check the cam timings.
Thanks,
Chris