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 05-07-2022, 07:25 PM
Registered User
 
Join Date: Jul 2003
Location: Ocean Isle Beach, NC
Posts: 2,487
Front rotors at minimum

I bought some ATE front brake rotors for my 1999 E300D fifteen years ago and they have given me about 160,000 miles - can't beat that. Just measured them today and they are at 24 mm. Minimum is 25.4 mm if my info is accurate. Based on that experience with ATE rotors, I'd like to go that route again if they are still available.

What harm can I do if I try to squeeze a few more miles out of them? I'm lucky to put 2000 miles a year on the car these days. We've got a couple of Smart electrics and probably use them for 98% of our driving. We absolutely love them. Really nice these days to drive past gas stations and just smile, smile, smile.

__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 222,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 22,500 miles
'14 Smart electric cabriolet 23,500 miles
'15 Smart electric coupe 21,500 miles

Reply With Quote
  #2  
Old 05-07-2022, 07:53 PM
Shern's Avatar
Semi-registered User
 
Join Date: Feb 2016
Location: Los Angeles
Posts: 1,687
Quote:
Originally Posted by sokoloff View Post
Just measured them today and they are at 24 mm. Minimum is 25.4 mm if my info is accurate.

What harm can I do if I try to squeeze a few more miles out of them?
Kind of sounds like you already didů
__________________
1981 240D 4sp manual. Ivory White.
Reply With Quote
  #3  
Old 05-07-2022, 08:13 PM
Registered User
 
Join Date: Sep 2001
Posts: 2,081
That's over .055" thinner than spec based on the #'s supplied...that is a lot. What can happen? They will warp, possibly crack and not handle excess heat well.
__________________
Does a Caddy stretch? No, but a Mercedes bendz.
Reply With Quote
  #4  
Old 05-07-2022, 08:36 PM
Registered User
 
Join Date: Jul 2003
Location: Ocean Isle Beach, NC
Posts: 2,487
Good point Shern.

Yeah, I think I know what I need to do.
__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 222,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 22,500 miles
'14 Smart electric cabriolet 23,500 miles
'15 Smart electric coupe 21,500 miles

Reply With Quote
  #5  
Old 05-08-2022, 04:23 PM
Registered User
 
Join Date: Oct 2012
Posts: 5,919
Rotors are cheap. Congratulations though. I do not think I ever squeezed that kind of millage out of a set of them.
Reply With Quote
  #6  
Old 05-08-2022, 08:19 PM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 38,163
That is some good driving there. I wouldn't worry about which brand to use, just use same brand each side.
__________________
[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.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
Reply With Quote
  #7  
Old 05-09-2022, 04:38 PM
Registered User
 
Join Date: Sep 2006
Location: Middle TN
Posts: 4,131
Not changing parts you know are bad qualifies as PPM. That stands for poor maintenance. Replace them and repack the wheel bearings, check the hoses, pads and change the brake fluid. You won't have to mess with that system for several more years based on how many miles you're putting on the car.
__________________
85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. Probably up for sale in the fall 2020 still have it. 85TD beginning to repair to DD status. Waiting on shop to do minor but more than I can do rust.
Reply With Quote
  #8  
Old 05-09-2022, 06:17 PM
Registered User
 
Join Date: Jul 2003
Location: Ocean Isle Beach, NC
Posts: 2,487
What does the second "P" stand for?

I'm in the middle of a B service and the brakes were about the last thing I had left to do. Will hold off on the brake fluid until the rotors are replaced. At the last B service the rotors were still in spec at 25.8 and 26.0, so getting close, so I'm not too surprised that it's time.

New rotors on order.

Thanks for all the help guys.
__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 222,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 22,500 miles
'14 Smart electric cabriolet 23,500 miles
'15 Smart electric coupe 21,500 miles

Reply With Quote
  #9  
Old 05-10-2022, 12:57 PM
Registered User
 
Join Date: Sep 2006
Location: Middle TN
Posts: 4,131
Quote:
Originally Posted by sokoloff View Post
What does the second "P" stand for?

I think it's "your in" (because people confuse your with contraction you are) which more accurately becomes "you're in" (deep doo doo because of PPM.)
__________________
85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. Probably up for sale in the fall 2020 still have it. 85TD beginning to repair to DD status. Waiting on shop to do minor but more than I can do rust.
Reply With Quote
  #10  
Old 05-22-2022, 01:53 PM
Registered User
 
Join Date: Jul 2003
Location: Ocean Isle Beach, NC
Posts: 2,487
So installed two new ATE front rotors over the weekend. No particular issues, but more of a job than I want to ever do again. Took the car for a quick drive (maybe five miles) to see if everything was working okay. It wasn't - there was a rubbing when I used the brakes. Couldn't really tell which side it was coming from, but once I removed the wheels to do the brake fluid, it was pretty easy to see. See attached photos. Right rotor has lots of rubbing and scratching on the outside going on. Left side is okay. The old rotors had no marks like that. So any chance the brake fluid service will alleviate this issue? My hope is that it will, but my brain is telling me something else.

So what would the solution be? Remove the offending pad and clean it up? I sure am not looking forward to doing that again, although it should be a little easier, since I sort of know what I'm doing. BTW only the outside pad on the right side is giving me issues.

I do have a brand new pad the I can replace the offending one with. The pads on there now have 7000 miles on them. I actually can replace both pads with new on the right side, but I don't have replacement pads for the left side.

I'm sure the rotor will be fine with only five miles on it. That's barely enough time to start scraping the coating off. Maybe I just need to give it more time?
Attached Thumbnails
Front rotors at minimum-img_3779.jpg   Front rotors at minimum-img_3780.jpg   Front rotors at minimum-img_3781.jpg  
__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 222,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 22,500 miles
'14 Smart electric cabriolet 23,500 miles
'15 Smart electric coupe 21,500 miles

Reply With Quote
  #11  
Old 05-22-2022, 01:57 PM
Registered User
 
Join Date: Jul 2003
Location: Ocean Isle Beach, NC
Posts: 2,487
One more thing - the "How to" section did a wonderful job detailing the pads and rotor job. Kudos to them.
__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 222,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 22,500 miles
'14 Smart electric cabriolet 23,500 miles
'15 Smart electric coupe 21,500 miles

Reply With Quote
  #12  
Old 05-22-2022, 03:13 PM
Registered User
 
Join Date: Sep 2001
Posts: 2,081
Do Not Drive the car! The outer brake pad is in backward.
__________________
Does a Caddy stretch? No, but a Mercedes bendz.
Reply With Quote
  #13  
Old 05-22-2022, 04:03 PM
Registered User
 
Join Date: Jul 2003
Location: Ocean Isle Beach, NC
Posts: 2,487
Oh geez, I see that now. What a freaking idiot I am.

Thanks.
__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 222,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 22,500 miles
'14 Smart electric cabriolet 23,500 miles
'15 Smart electric coupe 21,500 miles

Reply With Quote
  #14  
Old 05-22-2022, 04:10 PM
Registered User
 
Join Date: Sep 2001
Posts: 2,081
Things happen. The only ones that never fail are those that don't try...they also never experience success. Fix it and drive on!!!
__________________
Does a Caddy stretch? No, but a Mercedes bendz.
Reply With Quote
  #15  
Old 05-22-2022, 04:45 PM
Registered User
 
Join Date: Sep 2004
Posts: 8,937
Quote:
Originally Posted by sokoloff View Post
I'm sure the rotor will be fine with only five miles on it. That's barely enough time to start scraping the coating off. Maybe I just need to give it more time?
'Twas me, I would be taking the time to remove that rotor and take it to a machine shop to get the damaged side turned.

__________________
When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.
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 01:08 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, 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