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 > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-01-2012, 06:09 PM
Registered User
 
Join Date: Dec 2011
Location: Charlotte, NC
Posts: 119
W126 brake upgrade

One of the great things i've always loved about my toyota 4x4's and my old gm muscle cars it the interchangeability of most parts and the ability to upgrade parts from another model.

Seems like there is also some of that with mercedes so I'm wondering if bigger brakes from another model would bolt up to my 300SDL


Going to be doing a complete brake job soon enough (new calipers,rotors, pads) so instead of getting the original equipment i'd just get bigger rotors and calipers from a newer model. Is there anything that fits this criteria?
__________________
87 300SDL (work in progress) will be DD
92 Toyota Land Cruiser 4x4 monster (heavily modified)
build thread on mud http://forum.ih8mud.com/80-series-tech/288587-rotf-lt1fire.html

84 K1500 GMC Suburban 6.2 diesel motor...... dying to offer its engine to the Land Cruiser
Reply With Quote
  #2  
Old 10-01-2012, 06:17 PM
compu_85's Avatar
Waiting for his Model 3..
 
Join Date: May 2008
Location: Springfield VA
Posts: 5,174
I think you already have the largest factory brakes. The SEC cars got floating calliper brakes, not sure if they have more stoping power though.


Sent from my iPhone using Tapatalk
__________________
1991 350SDL. 230,000 miles (new motor @ 150,000).

2013 Fiat 500E. 20,000 miles, 80 miles at a time.
2012 Passat TDI. 95,000 miles. More space, power, and fuel economy than the Benz
2004 Touareg V10 TDI. 150,000 miles. One of 450.
1999 Jetta TDI. 310,000 miles.
1992 Jetta ECOdiesel. 156,000 miles. 1 of 48. Sold.
1991 Jetta ECOdiesel. 430,000 miles. 1 of 700. Sold to VeeDubTDI, totaled in front of our house
Reply With Quote
  #3  
Old 10-01-2012, 06:20 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,427
Try the performance forum. I know a 124 will take 129 Silver Arrow brakes with some modification to the LCA. I'm sure there are options for the 126. A problem, if it is one, is finding bigger wheels that look like they belong on a 126.

Did I mention Silver Arrow rotors are big?



Sixto
87 300D
Reply With Quote
  #4  
Old 10-01-2012, 06:52 PM
85 California 300SD
 
Join Date: Aug 2012
Location: Occidental, CA
Posts: 35
It seems like the stock brakes are pretty awesome... I don't see a ton of cars that have drilled rotors from the factory (like mine appears to). EDIT: I have no idea why I thought this, I got mixed up with another car I looked at I guess.

I'm pretty new to Mercedes diesels though, I have only experienced the brake function on one of them.

Last edited by ElmoOxygen; 10-01-2012 at 07:35 PM.
Reply With Quote
  #5  
Old 10-01-2012, 06:58 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,427
You have an '85 300SD with rotors from the factory???

Sixto
87 300D
Reply With Quote
  #6  
Old 10-01-2012, 07:30 PM
85 California 300SD
 
Join Date: Aug 2012
Location: Occidental, CA
Posts: 35
Quote:
Originally Posted by sixto View Post
You have an '85 300SD with rotors from the factory???

Sixto
87 300D
I think the main problem is that I don't even know what a rotor is but I'm trying to use that word as if I know what it means...

I looked at the parts for my car and I must be referring to the "disc", not the rotor. And my discs (apparently) are just smooth ones, not drilled or grooved, I just went out and looked. I think I may have looked at one of my mechanic's cars right when I bought this one and got confused.
Reply With Quote
  #7  
Old 10-01-2012, 08:07 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,427
Many of us use disc, disk and rotor interchangeably to mean the planar surface that rotates with the road wheel upon which the brake calipers clamp to slow down and stop the car.

Drilled and slotted rotors weren't factory options for passenger cars in 1985. I don't think they were available in the aftermarket except for very high performance cars back then.

And what I meant to question was the age of the rotors on your car. I imagine an '85 SD with 150-250K miles must have had a couple of rotor changes by now.

Sixto
87 300D
Reply With Quote
  #8  
Old 10-01-2012, 08:19 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,189
the above picture is of a "rotor" or a disc/disk one front, one rear. and, no, factory in 85 was nothing like the pictured ones...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #9  
Old 10-01-2012, 11:03 PM
Registered User
 
Join Date: Dec 2011
Location: Charlotte, NC
Posts: 119
Bigger wheels wouldn't be a problem but after posting this I remembered I just put 4 brand new tires on the car. So no upgrading for now i'll just do reman'd calipers and drilled/slotted rotors with performance pads.

I'd love to get ahold of some W140 or W220 brakes to see if they would adapt/bolt up.
__________________
87 300SDL (work in progress) will be DD
92 Toyota Land Cruiser 4x4 monster (heavily modified)
build thread on mud http://forum.ih8mud.com/80-series-tech/288587-rotf-lt1fire.html

84 K1500 GMC Suburban 6.2 diesel motor...... dying to offer its engine to the Land Cruiser
Reply With Quote
  #10  
Old 10-02-2012, 12:03 AM
Registered User
 
Join Date: Sep 2006
Location: Middle TN
Posts: 3,518
My 85SD brakes fine with stock Brembo rotors and correctly functioning calipers. I replaced hoses, took a chance on Cardone reman calipers & bought new aftermarket pads. I forgot which pads but found some that had reviews where they had actually done some testing on the track instead of listing regurgitated subjective opinions.

A bigger problem is wet handling but I attribute the tendency to break traction to the weight of the vehicle. I'll look hard at tires when these need replacing.
__________________
85SD 240K & stopped counting. 84SD 180,000. Thinking of painting both.
Reply With Quote
  #11  
Old 10-02-2012, 07:14 AM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 33,215
The brakes on a benz are very high quality. Unless there are problems functinally or the pads are very worn, changing all of them is likely not necessary.

You'll have plenty of other things to spend your money on in an older car like this. If it were me I would only change what is giving signs of excessive wear or other problems.

Welcome to the world of benzes and welcome to the forum.
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. It still needs upholstery redone...I also have a 427 Cobra replica with an aluminum chassis.
Reply With Quote
  #12  
Old 10-02-2012, 12:42 PM
Registered User
 
Join Date: Dec 2011
Location: Charlotte, NC
Posts: 119
Quote:
Originally Posted by t walgamuth View Post
The brakes on a benz are very high quality. Unless there are problems functinally or the pads are very worn, changing all of them is likely not necessary.

You'll have plenty of other things to spend your money on in an older car like this. If it were me I would only change what is giving signs of excessive wear or other problems.

Welcome to the world of benzes and welcome to the forum.

The brakes on the w126 certainly are good for the time they were made. The brakes on my 92 cruiser were excellent also for the time (test confimed 60-0 at 132 feet) but I am currently trying to adapt tundra calipers onto it for more clamping power from the added pistons. A friend did this and it was like a night and day difference.
My rotors are fairly worn as are the pads and it seems my parking breaks are dragging so i'll be doing 4 new rotors 8 new pads and 2 new calipers at the very least. With 346k (broken odometer) I have no idea if these are original for the car or not so most likely i'll just change them all an not have to worry about it too much
__________________
87 300SDL (work in progress) will be DD
92 Toyota Land Cruiser 4x4 monster (heavily modified)
build thread on mud http://forum.ih8mud.com/80-series-tech/288587-rotf-lt1fire.html

84 K1500 GMC Suburban 6.2 diesel motor...... dying to offer its engine to the Land Cruiser
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 03:18 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