On my 92, 325i i noticed today that in the intake boot between the MAF sensor and the intake manifold, there was a oily substance??? it seems to have come through one of the hoses which are connected to the boot underneath. One hose sucks air and the other blows. any one know where or how the liquid is getting up to the intake boot? Its a big problem because it allows for that fluid to get into the intake manifold when ever i gas it! HELP PLEASE!!!
