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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-30-2003, 07:06 PM
Registered User
 
Join Date: May 2003
Location: Annapolis, MD
Posts: 377
95 W124 brake problem - front caliper not "floating"

Hi,

I am in the middle of replacing the front and rear rotors/pads/calipers on my 1995 E300d. The car has 122K miles so I figured rotors/pads were due. I pulled the rear wheels and the calipers were quite rusty so I decided to replace those as well.

We started the brake job with the right front rotor/pads. We pulled out the pads, removed the caliper and rotor. When reassembling the caliper we noticed that the lower bolt with the rubber boot on it did not "float" like the top bolt. We also noticed uneven wear on the pads. Pulling back the rubber boot on the top floating bolt we found that everything was in nice condition and greased. Under the boot on the lower bolt there was no grease and corrosion was present. At that point I decided that it would be a good idea to just get new calipers to be done with it.

The calipers arrived today and I found that the bolt assembly I need to replace was not included. Apparently there is a bracket and the caliper bolts to that.

Does anyone have parts diagrams...I think that this assembly will be a dealer part? Anyone ever run into this problem....how is that floating bolt attached....can it be replaced by itself....what is the part number. Thanks in advance for your assistance!

Chuck
willmart@aota.org
Reply With Quote
  #2  
Old 12-31-2003, 10:55 AM
Registered User
 
Join Date: May 2003
Location: Annapolis, MD
Posts: 377
bump

help?
Reply With Quote
  #3  
Old 12-31-2003, 11:51 AM
csnow's Avatar
Registered User
 
Join Date: May 2002
Location: Mass
Posts: 1,127
That bracket part is not a common replacement item, as it has no moving parts. The pins and rubber boots should be available.

The problem you observe is not unusual. Generally you can just clean and lube, and get on with things.
Unless the pins are scored or pitted badly, they can usually be polished up with green abrasive pad or emery cloth, cleaned, and put back into service. If the rubber boots are not torn, you can usually pull them out and clean them out with brake cleaner.
I use silicone grease for this application. Holds up well.

Unfortunately, you have probably replaced calipers that were not part of the original problem.

Best of luck.
__________________
1986 300E 5-Speed 240k mi.
Reply With Quote
  #4  
Old 12-31-2003, 02:34 PM
Registered User
 
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
"Pin and bushing set" -- I have the same problem with the Volvo -- bad pins either stick or allow the floating side to go sideways, this wears the pads on a taper and greatly reduces braking effectiveness. Can also cause the brakes to clank and "chuckle".

Peter
__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
Reply With Quote
  #5  
Old 12-31-2003, 06:51 PM
Registered User
 
Join Date: May 2003
Location: Annapolis, MD
Posts: 377
Thanks for the replies.

Today we disassembled the caliper to get a closer look. The lower pin was really stuck. Eventually got it loose, cleaned/polished, lubed it up and reinstalled. Whew! I'm glad I didn't need that bracket. If you pull off your calipers it might be wise to inspect these pins while your in there. The other pins were fine.

Getting new front calipers didn't fix this problem, but upon inspection we found the seal looked marginal so rather than sending them back we went ahead and put them on. I bought them for $150 each, which was better than the first quote at over $300 each (!).

Here are some pictures. The first picture shows the caliper bracket and the pin that was giving us so much trouble.
Attached Thumbnails
95 W124 brake problem - front caliper not "floating"-brake1.jpg  

Last edited by chuck95e300d; 12-31-2003 at 06:57 PM.
Reply With Quote
  #6  
Old 12-31-2003, 06:51 PM
Registered User
 
Join Date: May 2003
Location: Annapolis, MD
Posts: 377
This is the pin in question
Attached Thumbnails
95 W124 brake problem - front caliper not "floating"-brake2.jpg  
Reply With Quote
  #7  
Old 12-31-2003, 06:52 PM
Registered User
 
Join Date: May 2003
Location: Annapolis, MD
Posts: 377
Here is the finished product...the right front brakes with new rotor/caliper. I've installed pads/rotors/calipers all the way around. I suspect the dealer would have charged a pretty penny for parts and labor! Thanks again for the advice.
Attached Thumbnails
95 W124 brake problem - front caliper not "floating"-brake3.jpg  

Last edited by chuck95e300d; 12-31-2003 at 07:02 PM.
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 03:11 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, 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