hi guys, i have an 840ci with m62 engine, and my idle fluctuates at times.

i think its due to two things:

1. i hear some sort of vacuum leak, a sort of suction-hiss that i cannot locate (i will look for it again soon)

2. There is a type of hole on the back of the engine that is blocked off on the right, but isnt blocked on the left, and when i cover the hole with my finger the idle settles a bit... what goes there? and does anyone have pictures of the back of an m62?

i will also take a pic of the hole i'm describing too soon...


darren