Well, the time has come. The air pump on the E320 is on it's last leg. I unplugged the magnetic clutch two years ago after listening to the horrible noise it makes. Now that noise is back and much worse. The pulley is cocked a few degrees sideways and is going to lock-up, break the belt or fall off in a few days. Now I need a solution ASAP... That's what I get for ignoring the problem.

It's my understanding that only California emissions E320's received an air pump. Is this correct??

Is my only option to replace the pump with a $350 rebuilt unit or can I simply remove the pump and fit a shorter belt? If so, what size belt?

Thanks!
Adam

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Current Stable:
01 ML55 AMG
92 500E (a few mods)
87 300E (lots of mods)
00 Chevy 3500HD Diesel Box Truck
68 18' Donzi Marine
06 GT i-Drive7 1.0 Mountain Bike (with GPS!)

PREVIOUSLY OWNED:83 300SD, 87 420SEL, 88 420SEL, 90 420SEL, 86 560SEL, 86 190E 2.3-16V AMG, 94 E320