Quote:
Originally Posted by 300EVIL
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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A new pump is around $1,000, but the dealers sell a rebuild kit for around $200-ish. You remove the air pump, replace the pulley / bearing and reinstall it. My independent did this on my former '93 300E (3.2) "E320", and it worked like a charm.
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Paul S.
2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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