DIY R53 Rear Light Surround Rust Repair
A word of warning before we start: if you’ve got a track car and you’re handy with a welder and can slap some filler on, I’d say give it a go. But if you want a tidy job done for a well-cared-for Mini, get the professionals to do it—there’s a reason this job costs a few hundred quid plus materials.
The Problem
Rear light surround rust is a common Mini problem. The car I rescued from being scrapped was initially clear of it on the back end. After a year of ownership, it started to bubble up. Looking back, I’d had the rear end jacked up in the air and water had pooled under the light and sat there for ages, which can’t have helped…
This is what we started with:
The Repair Process
I did let it get a bit bad and could have attended to it sooner, but I didn’t want to just patch it up. This was meant to be a track car and I’d rather spend money on good rubber than make this thing look 100% spot on, so we had a go at doing it ourselves.
We cut away until we found solid metal. It was surprising how bad the rust was on the inside compared to the outside—it always goes deeper than you think!
The Cost Breakdown
It’s not perfect, but it’s a track car and I knew we’d be DIY painting the whole car at some point soon. I already had the welder, gas, filler, and sandpaper, so all in all it cost me around £30 for parts. If I had to break it down with consumables included, it would look something like this:
- £30 – Pair of rear cut-outs from a good car (delivered, bargain!)
- £20 – Filler and sanding belts for the air sander
- £10 – Can of primer (already had one, but including for reference)
Total: Around £60 if buying everything fresh
First Stage Complete
It was due to rain so I stopped and threw some primer over it. Later on it would be re-sanded before being primed and sprayed again. Seam sealer was added in as we don’t want any water getting in.
The Final Result
Job done! For a track car on a budget, this repair has held up well and saved a significant amount compared to professional bodywork, it does the job.
