http://www.benzworld.org/forums/r170...#37;2C+Project
Common sadly.
If oil at connector replace magnet assembly (the bit held on by the 3 allen screws.
If just a weeping seal remove, clean up and as stated use a sealer there.
If any oil in loom clean thouroughly. Check other end in ECM box in rear of engine bay to ensure it has not wicked through.
Take Davids advise.
Bazzle