Hello, my mini 2008 non turbo base model h, has 165,000 miles and has never given much problems. I have an oil leak which seems to be coming from the bottom of the vacuum pump, i removed it and replaced the oring but it still leaks.Runs/drips down on the drived side of the engine dripping onto the exhaust pipe making an awful smell and mess. Is there any way to rebuild these vacuum pumps? Someone mentioned theres an oil pressure switch there that can leak too...not sure the location though. Thanks for any ideas.