Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > 5 Series DIY

5 Series DIY
Knowledge Is Power! ~ The place for do-it-yourself threads on a variety of topics. Start a thread describing a particular job (oil change, cooling system overhaul, brakes, shocks and springs, etc.) or search for one you need help with!

Reply
 
Thread Tools Display Modes
  #1  
Old 08-30-2011, 02:22 PM
SpartanGA SpartanGA is offline
Officially Welcomed to the 'Fest
Location: ATL
 
Join Date: Feb 2007
Posts: 391
Mein Auto: 2007 550i, 2011 335i Vert
550i Rotor Life question

I need to replace my front pads on my 2007 550i. My thanks to many on here that have given recommendations on pads, rotors etc.

I wanted to determine if my rotors also needed replacement. I know they replaced both pads and rotors at 50k. The car is now at 77k.

The stock rotors are 30mm or so and I believe the minimum thickness is 22.4mm

I just measured both my front rotors with a set of calipers and got approx 27-27.5mm. So lets say 27mm.

This makes sense to me as I believe the 50k new set of rotors were this cars first new rotors, so they lasted 50k miles. I am only 27k into this set and if the next pads last about the same, I am close to 50k and the rotors would be down to 23-24mm...which would need to be replaced.

Therefore, I have determined that I only need to replace the pads.

Does this make sense to those that have done pad changes and DIY changes?

thanks
__________________
Jim

2011 335i Convertible M-Sport - Silver - Saddle
2007 550i Sport - White - Tan
Reply With Quote
Ads by Google
  #2  
Old 08-30-2011, 02:37 PM
SpartanGA SpartanGA is offline
Officially Welcomed to the 'Fest
Location: ATL
 
Join Date: Feb 2007
Posts: 391
Mein Auto: 2007 550i, 2011 335i Vert
Upon further investigation, I see in the BMW TIS and on various other websites that the min thickness is actually 28.4mm . The 22.4mm I noted prior was for a 525i, not a 550i.

Which tells me I need new rotors.

Can someone concur?
__________________
Jim

2011 335i Convertible M-Sport - Silver - Saddle
2007 550i Sport - White - Tan
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > 5 Series DIY
Today's Posts Search
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



Forum Jump


All times are GMT -7. The time now is 05:38 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms