Hi folks, its been a while. I have trawled the archives but not found a definitive answer to my query.
I'm not much of a home mechanic nowadays, - prefer to leave it to the experts, however, the car has cost an arm and a leg recently so thought I would fit a new oil separator myself - straightforward job
The original part was still in place which is stamped 06H 103 495 A. I realize that there are several revisions of the part, and the one I ordered was a Febi Bilstein item, which on the box says it is equivalent to 06H 103 495 AH. The part was being replaced purely as a preventative measure on advice. The car was running ok. I replaced the part which was quite simple, and started the car.
I now have an uneven idle and when I blip the throttle, the rev drop to idle isn't instant, - it seems to take a second or two holding just over 1000rpm, before it drops to idle around 800/850rpm. Did around 150 miles yesterday and had no problem with performance.
I've just had a couple of hours trawling for info about revisions but have confused myself even more. I don't know whether the part fitted is wrong or faulty or whether replacing it has shown another fault. The info I can find seems to point to it being the correct part.
All advice gratefully received.