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01-17-2004, 12:57 PM
I have a 1994 E320 wagon that screams the first time we start it after it had sat all night. It sounds like maybe a bad power steering pump or water pump (bearings ?). The screaming goes away after about 30 seconds or if we push the throttle.


01-17-2004, 09:28 PM

Rick S.
01-19-2004, 03:41 PM
No that was my wife , argg argg argg!!! Just kidding. Yeah it's hi pitched. Like bad bearings.

Rick S.

01-20-2004, 10:26 PM

Check the serpentine belt, it may be ready for replacement due to wear. It'll look glazed and cracked. It's exacerbated in colder weather, too.

04-16-2004, 12:09 PM
Cajun 535is
CB Seattle
<img src="" height=385 width=520>

Rick S.
04-20-2004, 09:29 PM
Since I did not have a repair manual for my '94 E320 TE, I ended up taking it to a local independent shop (no not a dealer). Well it turned out that my water pump was on it's way out and that the idler pulley was going as well. They replaced these and also the serpentine belt. Just in time. Everything is fine now. Now if I can only fix my wife ... just kidding! I only wish Mercedes had repair manuals like the Bentley manuals so that I can do some of the basic work like I do on my BMW. The Mercedes "Bible" only shows you how to replace the belt and you need special Mercedes tools to do the work. The tools probably would have cost what I paid in labor for the repairs! BTW I had this work done shortly after my last posting before this. Thanks for the input guys!

05-04-2004, 10:20 PM
actually the fuel pumps will make more of a hissing sound

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