E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 05-06-2002, 11:56 AM   #1
hbmike
Registered User
 
Join Date: Dec 1969
Location: socal
Posts: 95
My Ride: 03 530, 00 328i dead
Question Turning brake rotors?

I had BMW replace my rear pads, but they didn't replace the rotors, as they said it was still .5 above the minimum. They also did not turn the rotors as well. My service tech said that BMW does not turn their rotors.

My question, isn't this bad? Shouldn't you turn the rotors with new brake pads? Plus the old stock pads were pretty abrasive, and left the rotors with a nice lip, so the rotor is definitely not smooth.

Need some advice, as I plan on changing the rear pads to a dustless pad.

Thanks
__________________
hbmike is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 05-06-2002, 12:02 PM   #2
Clem
Alpha Male
 
Clem's Avatar
 
Join Date: Dec 1969
Location: Edmonton, AB Canada
Posts: 310
My Ride: Twin Turbo'd Beast
Good practice is to have rotors turned when changing brake pads.

BMW does not do this because the tolerances are so close that there is not enough "meat" on the rotors to turn them.
Clem is offline   Reply With Quote
Old 05-06-2002, 12:07 PM   #3
vinnymac
St. Louis BMW Fanatic
 
Join Date: Dec 1969
Location: Saint Louis, Missouri
Posts: 7,155
My Ride: 2011 335is
Send a message via AIM to vinnymac
Clem is right...

Quote:
Originally posted by Clem
Good practice is to have rotors turned when changing brake pads.

BMW does not do this because the tolerances are so close that there is not enough "meat" on the rotors to turn them.
The lip on your rotor shouldn't be a big issue but you need to keep an eye on them to make sure your rotors are not warped.

I hate it when my dealer gives me the line, "Well, it's still within BMW spec..." Grrrr....
vinnymac is offline   Reply With Quote
Old 05-06-2002, 12:24 PM   #4
teamdfl
Slow in, slower out
 
Join Date: Dec 1969
Location: Awesome, NJ
Posts: 4,532
My Ride: 325it
Turning rotors

In theory, you should not have to turn the rotors when just changing pads as long as the rotors are not warped. The new pads will quickly conform to any lip at the outer edge of the rotor.

In reality, factory BMW rotors are so cheap, I usually pitch them if they are more than half worn or are warped. Of course, at dealer parts prices, turning is probably an economical alternative. Once my car is outside the free maintenance period, I will do all brake work myself. At $32 each for rear rotors, I'll gladly pitch them in the trash if there is any question about wear limits or straightness.


Ed
__________________
Mod the driver first. Participate in your local BMWCCA driving school. Have you joined BMWCCA yet?

My Track Schedule

The solution to the lack of headroom in the X6

teamdfl is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Censor is ON





All times are GMT -5. The time now is 01:08 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use