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

LinkBack Thread Tools Display Modes
Old 05-01-2008, 11:13 PM
just-n-time's Avatar
Registered User
Join Date: Feb 2006
Location: Louisiana266 Maloy Rd winnfield71483
Posts: 804
Angry 420sel brake issues

I am having trouble with the left rear brake, seams as though the outer pad is going away at twice the speed of the inner pad. this is the second time I had to replace the pads on this axel and found the outer pad worn out, I am thinking that the piston might have some rust issues not letting it back off,any one else had this type of trouble?

Reply With Quote
Old 05-02-2008, 12:38 AM
wbain5280's Avatar
Registered User
Join Date: May 2001
Location: Northern Va.
Posts: 3,386
You have a stuck piston. Take pads out and check the protective boots, One may be split and the piston is rusted, if so, new caliper time and brake hoses as well.

Then, you can check the parking brake shoes too.


Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL


Not part of the in-crowd since 1952.
Reply With Quote
Old 05-02-2008, 02:17 AM
Hatterasguy's Avatar
Join Date: Nov 2002
Location: Milford, CT
Posts: 19,307
Yep a piston is stuck. Throw on a set of rebuilt calipers, and new hoses, flush and make sure to tighten the heck out of the caliper bolts.

While your back there yank off the disc if it hasn't been off in awhile and check/lube/clean the parking brakes. A lot of times the shoes are gone and need replacing.
2020 GMC Sierra Denali
2007 Tiara 3200
Reply With Quote
Old 05-02-2008, 11:11 AM
crashone's Avatar
1983 300SD, 4 speeed
Join Date: Jul 2006
Location: Raleighish, NC
Posts: 664
You can rebuild the calipers with little trouble. Change the rubber brake hose while you are at it. The rebuild kits are like $20 bucks or so. Go ahead and do all four corners. What you spend on 4 rebuild kits and 4 new rubber hoses and new pads all around will be less or close to the cost of 2 reman calipers.
Very straight forward process, PLUS you have this board to help along the way if you get stuck!!!!! Do some searches on here.
If it ain't broke take it apart and find out why.

1983 300SD, 4 speed
1994 C280
1987 300TD wagon
1996 HD Road King

Ride in Peace Eric Peterson, Harley of Macon
Reply With Quote
Old 05-02-2008, 10:23 PM
just-n-time's Avatar
Registered User
Join Date: Feb 2006
Location: Louisiana266 Maloy Rd winnfield71483
Posts: 804
well thank you for every ones responce to my question, I looked up at phils and the rebuild was like $80 have to try some after market places.

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 05:03 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, 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