Calipers sticking two months after replacing them. - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 07-02-2010, 04:57 PM Thread Starter
BenzWorld Junior Member
Date registered: Jun 2010
Posts: 6
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Calipers sticking two months after replacing them.

So two months ago i replaced the front calipers on my 78 300d. Just recently my Nuetral safety switch went out and my car sat for about a week. After i fixed the nss i took it for a short spin and noticed the breaks were sticking again! I dont know what could cause this, im hoping someone on here will. Thanks in advance for your time!
abiteofcrime is offline  
Sponsored Links
post #2 of 6 (permalink) Old 07-02-2010, 10:12 PM
Boring Cars...meh!
Nutz 4 Benz's Avatar
Date registered: Aug 2005
Vehicle: 81 280E, 84 500SEC, 87 560, 89 "300E", 91 500SL, 15 E350 4Matic Estate, 71 BMW 2002, +others
Location: Hawai'i (Maui)
Posts: 16,211
Mentioned: 0 Post(s)
Quoted: 18 Post(s)
Lifetime Premium Member
How old is the booster?

Nutz 4 Benz is offline  
post #3 of 6 (permalink) Old 07-05-2010, 11:02 AM Thread Starter
BenzWorld Junior Member
Date registered: Jun 2010
Posts: 6
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Im not sure honestly. I got this car as sort of a project, mostly just to learn. Is there any way i could test it to see if thats the issue?
abiteofcrime is offline  
post #4 of 6 (permalink) Old 07-05-2010, 12:45 PM
BenzWorld Member
tecrekka's Avatar
Date registered: May 2003
Vehicle: 72 280 SEL 4.5 - 81 VW Rabbit - 85 XJS - 86 XJ6
Location: Savannah, GA
Posts: 61
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
I don't know if it is the same situation but I recently had my 72 W108 taken in to replace what I thought was a sticking caliper. Turns out it wasn't the caliper at all but a collapsed brake line that would cause the caliper to stick after a few miles, very much like a damaged caliper. Worth checking out I suppose, hope this helps.

1972 280SEL 4.5 W108.068/M117 V8
tecrekka is offline  
post #5 of 6 (permalink) Old 07-06-2010, 03:18 AM
BenzWorld Junior Member
Date registered: May 2009
Vehicle: S 600 W 140
Location: Australia
Posts: 16
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
brake hoses , traps for young players. this is why the world needs old

Last edited by genthree; 07-06-2010 at 03:21 AM. Reason: more info
genthree is offline  
post #6 of 6 (permalink) Old 07-06-2010, 06:15 PM
BenzWorld Elite
wbain's Avatar
Date registered: Dec 2003
Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
Location: Near Manassas Va.
Posts: 1,830
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Most likely the flexible brake hoses have collapsed. They need to be replaced. Use penetrating oil on the chassis connections and let the oil soak in and keep reapplying it to the joint. Then use flare tool wrenches, the ones with the slot at the end, and unscrew the pipe from the hose and then the hose from the caliper. The new hoses have a white line on them so you can tell if it's twisted.

Screw in the hose to the caliper and then route the hose to the chassis mount. Screw in the pipe, using your hand so you don't cross thread the pipe, and then tighten with the toool. Replace both sides and the rear one too.

Bleed the brakes with new DOT 3 or 4, 4 is a higher temperature fluid.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant
wbain is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > Vintage Mercedes-Benz

Quick Reply

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Topic Author Forum Replies Last Post
Replacing calipers Luke1 W116 S, SE, SEL, SD Class 1 02-09-2010 06:54 PM
Wiper sticking nickCR W202 C-Class 6 11-22-2009 10:11 AM
Rear Calipers on 1980 300SD Sticking- Wont Contract for pads? Help! 240-John Vintage Mercedes-Benz 6 09-02-2006 06:27 AM
Speedo sticking Coffs500SL R129 SL-Class 0 03-19-2006 04:51 PM
White Calipers or Red Calipers on a white slk32? kenny R170 SLK-Class 17 10-21-2001 07:24 AM

Posting Rules  
You may post new threads
You may 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


Title goes here

video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome