Rust repair

John Avis by | February 10, 2013 | My 1991 325i

Rust repair 1

My 325i has what appeared to be surface rust around the boot seal. This seems to be a common rust area on E36s, particularly the early models. I didn't really want to put too much effort in to repairing this but did want to protect it from getting worse. I purchased some paint that dissolves the rust and seals it, protecting against further rust.

First step is to remove any loose rust using a wire brush. This went fine and I sprayed on a few coats of this special paint. Unfortunately it worked very well, the rust dissolved leaving a few holes - I didn't realise it was that bad.

Rust repair 2

Next step was to fill the holes with some body filler I had left over called Fibrefill which has fibreglass in it to fill holes. This worked quite well.

Rust repair 3

The next day I sanded it back to what I thought was nice and smooth. After a coat of primer though I can see that I did an awful job of sanding.

Rust repair 4

Anyway, I applied a few coats of primer, metallic silver ($2 a can paint but almost a perfect match for Sterling Silver), and clear.

Rust repair 5

Related Posts

My 1991 325i

Common problem with M50 vacuum connector

by John Avis | July 10, 2014

There's a common problem with the BMW M50 engines as fitted to the E36 320i and 325i, and the E34 520i and 525i. On the intake manifold there is a air pipe connection that over time can come loose.

My 1991 325i

Sold my 325i

by John Avis | April 19, 2013

With some remorse already, last weekend I sold my 1991 BMW 325i.

My 1991 325i

BMW E36 instrument cluster intermittently stops working

by John Avis | March 13, 2013

The instruments in my 1991 E36 BMW 325i intermittently stop working. Usually it happens when I operate some electrical equipment like the wipers or press the brake pedal and activate the brake light switch.


There are no comments yet. Be the first to leave a comment!

Leave a Comment
E30 E36 E46 General Magazine Articles My 1990 318is My 1991 325i My 1994 318is My 1995 M3 My 1997 318is My 1998 318is My second 1990 318is Technical Tips

About me

I am a bit of a 3 series fanatic, having owned a couple of E30s and a few E36s, plus a few parts cars. I like the combination of the compact size, good performance and handling, and that they are more sports sedan than an impractical and extrovert sports car. This blog is a place to share my experience and knowledge.


Get the latest posts delivered to your inbox.