Hi,
I own a 2001 s 500 and i am facing vibration while throttling and knocking while it's parked. i have got it checked through a mechanic and they said me the pulley is broken get it replaced but i don't think that can be the case as i feel it while the car is running even. Can someone suggest is it the pulley alone or can be a mixture of issue like Drive shaft, Pulley & Plugs or coil.
thanks,
Naved