aoleks
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- Jul 10, 2016
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Hi all,
2008 2.0 TDI 143hp CAGA engine code
132k miles, well maintained (castrol edge only once every 6 months or 10000 miles, whichever comes first, mann filters, all fluids replaced yearly, brand new sachs DMF + clutch + bearing + slave cylinder, new timing belt + water pump + tensioner + pulleys (dayco), shell v-power only!!! etc.)
car pulls like a train and the fuel mileage is great. exhaust is like new even though I'm on the original DPF. no errors in computer, last time I took it to the Audi specialist in Harrow they said injectors had very good values.
the only problem is that I have an increasing vibration at idle. needle is perfectly stable, car always idles at 800rpm (except for regen), but there's a vibration that can be felt in the cabin, along with an irritating whine when accelerating.
I looked at the engine at the auxiliary belt tensioner seems to be dancing. also, the crankshaft damper seems to be uncentered. power steering vibrates at very low speeds + idle. can't see anything suspicious on engine mounts, but haven't looked really well.
auxiliary belt + tensioner + idle pulleys are brand new (dayco) and have been installed correctly, crank damper and alternator clutch are old.
I suspect alternator clutch + crank damper OR engine mounts. what do you think? how do I test?
thanks
2008 2.0 TDI 143hp CAGA engine code
132k miles, well maintained (castrol edge only once every 6 months or 10000 miles, whichever comes first, mann filters, all fluids replaced yearly, brand new sachs DMF + clutch + bearing + slave cylinder, new timing belt + water pump + tensioner + pulleys (dayco), shell v-power only!!! etc.)
car pulls like a train and the fuel mileage is great. exhaust is like new even though I'm on the original DPF. no errors in computer, last time I took it to the Audi specialist in Harrow they said injectors had very good values.
the only problem is that I have an increasing vibration at idle. needle is perfectly stable, car always idles at 800rpm (except for regen), but there's a vibration that can be felt in the cabin, along with an irritating whine when accelerating.
I looked at the engine at the auxiliary belt tensioner seems to be dancing. also, the crankshaft damper seems to be uncentered. power steering vibrates at very low speeds + idle. can't see anything suspicious on engine mounts, but haven't looked really well.
auxiliary belt + tensioner + idle pulleys are brand new (dayco) and have been installed correctly, crank damper and alternator clutch are old.
I suspect alternator clutch + crank damper OR engine mounts. what do you think? how do I test?
thanks