E60 Discussion Anything and everything to do with the E60 5 Series. All are welcome!
Sponsored by:
Sponsored by:

BMW undercarriage rust

Old 06-24-2019, 04:02 AM
  #1  
New Members
Thread Starter
 
Join Date: Apr 2017
Location: pa
Posts: 108
My Ride: 528i
Model Year: 2010 528i e60 N52k
Default BMW undercarriage rust


BMW factory has sprayed the undercarriage with a silver primer paint.

There are a number of places on the rear of the car that are rusting and need to be reSprayed.

Has anyone color matched this paint?

What brand and color did you use?

See picture.

scottalexander is offline  
Old 06-25-2019, 05:01 AM
  #2  
New Members
 
cmyachtie's Avatar
 
Join Date: Sep 2012
Location: Halifax, Nova Scotia, Canada
Posts: 401
My Ride: 2004 545i+BT+AUX+Coding
Model Year: 2004
Engine: N62
Default

Originally Posted by scottalexander View Post

BMW factory has sprayed the undercarriage with a silver primer paint.

There are a number of places on the rear of the car that are rusting and need to be reSprayed.

Has anyone color matched this paint?

What brand and color did you use?

See picture.
Assuming you’re mistakenly referring to the aluminum parts as silver primer paint, the rust you see are the steel parts that are rusty I just maintain that be spraying them with some rust retardant like or oil etc. Whatever your local hardware store has
cmyachtie is offline  
Old 06-25-2019, 05:26 PM
  #3  
New Members
Thread Starter
 
Join Date: Apr 2017
Location: pa
Posts: 108
My Ride: 528i
Model Year: 2010 528i e60 N52k
Default

I tried to find that same silver color that is sprayed on the rear sub frame and I couldn't find it at the local stores.

I was hoping someone order silver primer spray paint in the can from an online store and knows the exact store and exact color.
scottalexander is offline  
Old 06-28-2019, 06:53 AM
  #4  
New Members
 
Join Date: Jun 2018
Location: Vancouver Canada
Posts: 7
My Ride: 530i
Model Year: 2004
Default

There may have been a zinc coating on that hardware, but no more. You DO NOT want to paint these bits. You will be applying paint over rust and this will do nothing to stop corrosion. It will likely accelerate corrosion. Do as suggested and treat them with Fluid Film or similar product. The idea here is to halt more corrosion and make the parts easy to disassemble and service. If you want shiny new bits, buy shiny new bits!
Dakota>beige is offline  
Old 06-28-2019, 07:22 AM
  #5  
New Members
Thread Starter
 
Join Date: Apr 2017
Location: pa
Posts: 108
My Ride: 528i
Model Year: 2010 528i e60 N52k
Default

I just checked out Fluid Film spray. Wow, that stuff looks powerful.

Thanks.
scottalexander is offline  
Old 07-01-2019, 06:14 AM
  #6  
New Members
 
Join Date: May 2013
Location: Montreal
Posts: 78
My Ride: 2010 535xiT Touring
Model Year: 2010
Engine: N54 3.0L Twin Turbo
Default

I've done all those rusting bolts under my car with Fluid Film - sticks really well - seems to work well. It would be worth the effort to try to hit all the steel heat shield fasteners - up above the rear differential / anywhere you can reach as well.
gman6262 is offline  
Old 07-01-2019, 06:51 AM
  #7  
New Members
Thread Starter
 
Join Date: Apr 2017
Location: pa
Posts: 108
My Ride: 528i
Model Year: 2010 528i e60 N52k
Default

Did you try to wire brush or remove the existing rust from the rear sub frame before spraying it with fluid film (or did you just spray the fluid film over top of all the rust)?
scottalexander is offline  
Old 07-05-2019, 05:44 PM
  #8  
New Members
 
cmyachtie's Avatar
 
Join Date: Sep 2012
Location: Halifax, Nova Scotia, Canada
Posts: 401
My Ride: 2004 545i+BT+AUX+Coding
Model Year: 2004
Engine: N62
Default


Fluid Film has been my fav for a long time but I recently picked up a can of AD3000 and got to use yesterday first time on some rusted galvanized nuts of my wharf ramp, being on salt water never thought I would be able to unscrew them easily but to my surprise they instantly became grey again rather then rusty dark brown.....

so so if you can find it where you are suggest you give it a try on the bmw(I got it here at princess auto), being in Canada.

Last edited by cmyachtie; 07-05-2019 at 05:48 PM.
cmyachtie is offline  
Old 07-06-2019, 04:06 AM
  #9  
New Members
Thread Starter
 
Join Date: Apr 2017
Location: pa
Posts: 108
My Ride: 528i
Model Year: 2010 528i e60 N52k
Default

ok, I'll order some AD 3000 and see how it goes.

Some of the Fluid Film videos suggest that it wears off after about a year and needs to be re-Applied.
scottalexander is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
hks
E60 Discussion
4
07-11-2016 07:53 PM
louiemC
6 Series Discussion
9
02-09-2010 02:06 PM
louiemC
E60 Parts, Accessories and Mods
0
02-05-2010 08:28 AM
e60insd
E60 Discussion
5
09-29-2008 11:39 AM
Bimmer32
E60 Discussion
7
01-05-2008 08:39 PM


Thread Tools
Search this Thread
Quick Reply: BMW undercarriage rust


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.