Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 09-03-2011, 08:10 AM
Registered User
 
Join Date: Aug 2011
Location: Kuala Lumpur, Malaysia
Posts: 7
Meat grinder noise, choppy ride, and too much brake dust

Dear all,

I have these three issues with my car (W124, E280 model 1994) that I would like to sort out myself over the next couple of weeks, they have been with the car since I bought it so I am not really aware of any background:

1- There is an intermitent but repeating noise that comes out from the engine bay, right underneath the windshield on the right side (the brakes master vicinity area). The sound is very similar to a meat grinder or some machine like that, but is completely independent from the engine. One time it came on while I only had the key in contact position (number 2 position), the engine wasn't running. Is there any experience with what that could be?

2- The ride is quite choppy and hard, and while it was lifted I noticed that the shock absorbers were Bilstein and yellow. Now I checked on their website and yellow means that the shocks are sport, which would explain the hard ride. But what it doesn't explain is the crashing noise that I get with the smallest potholes. Is this a shock absorber problem that will be solved with a swap to original valving shocks, or is there another problem I have to address?

3- I am getting way too much brake dust on my alloys, specifically the front. It doesn't wash easy, it needs that special cleaner which is ok, but then it is clearly visible again in about two weeks. I am concerned however it is indicating a problem I need to address, or perhaps is my driving too aggressive (the dust is mainly on the front alloys, much more than the back)?

Any input would be appreciated.

Sam

Last edited by sampharo; 09-03-2011 at 09:16 AM.
Reply With Quote
  #2  
Old 09-05-2011, 08:57 AM
oldsinner111's Avatar
love all animals
 
Join Date: Nov 2008
Location: bristol,tn
Posts: 5,121
Sorry can't help you with other problems.I had brake dust problems on both my Benz's.I switched to ceramic pads,and now dust ain't that bad.
__________________
veteran,mother german,born in stuttgart,ashamed of what america has turned into,religous,and the right are fecal matter
Reply With Quote
  #3  
Old 09-05-2011, 10:16 AM
Hirnbeiss's Avatar
ich fahre, also bin ich
 
Join Date: Mar 2002
Location: South Florida
Posts: 1,620
Could the noise be farther back, like in the fuel pump area?
__________________
Prost!
Reply With Quote
  #4  
Old 09-05-2011, 10:26 AM
oldsinner111's Avatar
love all animals
 
Join Date: Nov 2008
Location: bristol,tn
Posts: 5,121
Next to brakes.Could it be the ABS pump?
__________________
veteran,mother german,born in stuttgart,ashamed of what america has turned into,religous,and the right are fecal matter
Reply With Quote
  #5  
Old 09-05-2011, 10:33 AM
POS's Avatar
POS POS is offline
Registered User
 
Join Date: May 2004
Location: Houston, Texas
Posts: 2,504
1) No idea.
2) When shocks go bad, they can get super soft or super hard. Get Bilstins - you need them.
3) Akebono euro pads are dust-free. I have them on my w126 and love them, but it's best to get some slotted rotors at same time.
__________________
- Brian


1989 500SEL Euro
1966 250SE Cabriolet
1958 BMW Isetta 600
Reply With Quote
  #6  
Old 09-05-2011, 11:14 AM
Registered User
 
Join Date: Aug 2011
Location: Kuala Lumpur, Malaysia
Posts: 7
Quote:
Next to brakes.Could it be the ABS pump?
Quote:
Could the noise be farther back, like in the fuel pump area?
I don't know where either of those are in the car yet, but the noise at first I thought was in the side-mirror (heard it clearly inside the cabin), and when I was inspecting from the engine bay it was clear to be coming from that pocket that houses the brake master.

The thing is the noise came once while the engine was stopped and I was out of the car, so it's definitely an electric device that is independent from actual engine running and independent from driver input. Would the abs pump do that?

Fuel pump I kind of rule out though because it is working perfectly and I am not having any weakness in pull while the noise kicks in.

Quote:
3) Akebono euro pads are dust-free. I have them on my w126 and love them, but it's best to get some slotted rotors at same time.
Quote:
I had brake dust problems on both my Benz's.I switched to ceramic pads,and now dust ain't that bad.
Thanks for the tips. I guess dust is not an indication of a problem other than thinking of upgrading pads and rotors. Check.

Any more thoughts about any of the three points still appreciated.
Reply With Quote
  #7  
Old 09-05-2011, 03:50 PM
Cal Learner's Avatar
Registered User
 
Join Date: Aug 2006
Location: Marysville, CA
Posts: 781
This seems like a real long shot on the grinding noise, but my first thought was the air sampler pump for the climate control system. On LHD cars, it's located up behind the dash on the right (passenger) side. I'm not sure I would describe it as a "grinding" sound, but when it's going bad, it does have the noticeable hum of bad bearings.
__________________
1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't
Reply With Quote
Reply

Bookmarks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 08:46 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page