I have a recently bought a 318ci 2000a few months ago, the idle was very poor which was dramaticaly improved when i reconected a breather pipe.
The car still doesn't seem to tick over correctly and does not like acceleration when started from cold (about 30 seconds).
When the engine is running the the oil filler cap and dipstick are difficult to remove as there is some thing causing a vacume, Is this normal for a BMW?

Any suggestion would be greatly appreciated.