Ben's e//S2

what do i need (other than a bentley manual)to check for vacuum leaks on my '91 coupe q.? also, can someone point out where the vacuum lines are and what they look like? i'm fairly mechanically inclined, but have no experience in the area of vacuum lines. any help would be greatly appreciated!!!

ben

Ken 4000

im not sure but on the older audis i have noticed a sticker under the hood that shows a diagram of the vacuum lines, check there or under the trunk lid