1997 C280 purchased 05/04 with 76K, car now has 118K miles

Replaced @80K:
plugs
wires
air and fuel filter
tranny fluid and filter with mobile1 synthetic
4 new michelins

Replaced @106K
LCA bushings
L&R Lower ball joints
Front pads and rotors

Replaced @115K
idler arm
steering damper

Replaced @118K
A/C condenser
cabin filter

Still need to track down vacuum leak! stupid headrests are stuck up! and climate control floor heat doesn't work!...any more suggestions of where to look would be appreciated

I love this car and will drive it till the wheels fall off, as long as you fellow forum members keep helping me through this!