Spark plug..oil???

today i changed my spark plugs on my 94 325is. i noticed on one spark plug and boot that oil had leaked into the spot? anyone know how or why and how bad the problem is? the ony thing i can think is that it is a seal somewhere but not sure which one if thats it?

It's the valve cover gasket you need to replace. I'm about to change my plugs for the first time and ordered the gasket just in case. It's not an expensive part-about $30. I bought mine from pelican parts: http://www.pelicanparts.com/bmw/catalog/shopcart/BE36/POR_BE36_ENGcyl_pg3.htm#item13
There's also a diy on the site for replacing the gasket.

Thanks a lot phanley!!

You need to get the seals for the cover bolts as well. 50c each and 14 of them.

Got it all and did it myself, quite an easy job really! thanks for the help guys!

Common problem with older vehicles. It's your valve cover gasket. Here's what I did to fix it:

http://www.dvatp.com/bmw/diy/valve_cover_gasket/

-Doug