It seems some 119.9 engines (w140) have air pumps and some do not.

Why would it vary? What does the air pump do for performance or air pollution?

Ok - Here's the rub.

My air pump seized. Should I replace the pump and spend over $1,000 at FastLane, or should I just remove the air pump, get a new belt and live without an air pump.

After replacing the water pump last week, this just isn't a good time for me.

Required steps to remove and replace the air pump are appreciated.

__________________
Thanks for the help
Bill Fisher

'86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle
02 E430 in the stable
'14 LS460 (Lexus)
- - - - -
'95 E420 (198K) found a new home
'99 E320 (80K) (gave it's life for me as we hit a bumper)
'95 E420 (231K) Sold to a happy buyer, new to Mercedes
'90 300E (65K) Sold to an Mercedes Lover
'92 190E (215K) - retired to the salvage yard
'93 500SEL (214K) - Moved to another family, still runs like a young pup