Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 11-30-2002, 07:55 PM
Posts: n/a
Question Air Pump noise.

My 92 300 TE is making a bearing noise from the air pump. I have never pulled one of these off. Because of the price of the pump, I am going to try a pulley and clutch replacement. From the angle of the pulley, it is a little off center due to the tighness of the belt. I hope this is the extent of the problem.

Any recommendations. Is it easier to take the pump off and work on it or do it on the car?
Reply With Quote
Old 11-30-2002, 10:30 PM
Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,503
These air pumps are noisey. Always have been. Always will.

They also very seldom break.

Save your money and let it run. It'll probably never go out. It only functions for about 45 seconds on cold start to reduce smog emissions.

Besides, they're over $1,000 from PartsShop, and even more from a dealer.
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".
Reply With Quote
Old 12-01-2002, 12:16 PM
DHA DHA is offline
Registered User
Join Date: Jul 2002
Location: Atlanta
Posts: 54
Air Pump Noise

Suggest you search this site using "A.I.R. Pump" as the key word.

On my 560SEL the noise became an issue. From the archives it was evident that the clutch/pulley was the issue, not the pump itself. Bits and pieces dropped out of the clutch assembly. I removed the belt, noat the pump. The noise stopped. I now have to decide whether I want to spend the ~$300 for a rebuilt pump from Fast Lane.
Reply With Quote
Old 12-01-2002, 01:50 PM
need2speed's Avatar
Join Date: Dec 1999
Location: Edmonton, Alberta, Canada
Posts: 1,253
dsccdeputydog: I share your misery. My pump finally went TU after a two-year lingering, and noisey, death. As far as I can tell, loss of the air injection pump doesn't affect driveability at all. Only if you have annual smog inspections would it be a concern.

If it wasn't for the "check engine" light glowing on my dash, I'd ignore the damn thing
Dean Albrecht
"Lead, follow, or better yet, get out of the way!"E500 owners motto
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 02:08 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page