So today I was going to replace my rear calipers, but the parts store ordered the early versions.. So I thought maybe I should replace my hoses while I'm at it... Is the only difference the fitting size, or am I going to run into more problems as well....

 

Yes, in 4/2003 was the big change in the rear brake lines, I would get the correct lines.

https://www.ecstuning.com/Mini-2003-...Braking/Lines/




VS






The front portions are the same , the rear ends are different on the lines.

 

I use the Goodridge stainless steal lines HERE. I've had them on the car for about at least 9 years. They've done quite well. I track with the set up as well. You'll want to check the build date on your vehicle. At that link it'll have them for build date through 04/03 and build date from 05/03. If you're unsure I can always check with your vin if you'd like. A really good fluid that'll compliment the line upgrade would be ATE Typ 200 HERE. It's what I have used for many many years for daily and track use.

 

Update for everyone- I ended up taking the calipers back and getting the proper ones... I DID still replace the brake lines though! As much as I like to think I'll never sell my car, I couldn't help but think of the poor sap that owns it next going to the auto parts store in 10 years and trying to get the proper parts...

 

Yea, its will be confusing to the next owner. Good move.