Rusty Wheel Hubs on my 335i M Sport coupe

6 months after picking up my new 335i I started to see rust appearing on the wheel hubs and brake calipers. The impact is visibly worse with the 19" M Sport wheels. I've booked the car in for it's scheduled service and I will be certainly mentioning something to the service dept. Anyone had this experience and how did you go with the Service Dept?

Surely BMW should be doing something about this? It is such a poor look on what should be a great looking vehicle. Not happy!!!!

Use high temp brake grease on the hub face (where it contacts the wheel) so that they don't stick together. I don't understand caliper rust. I doubt that the dealer will do anything. Keep us informed.

At the risk of sounding like a BMW technician - 'they all do that guv' (and that's not just BMWs). The only way to prevent it long term is to sand off all the corrosion and paint with high temp paint. Do it yourself - the dealer will charge you a fortune as it's labor-intensive...

yep un protected cast iron rust, sand it and paint it, clear if you want or wipe down the area with a cloth with WD 40, it will slow down the rusting

Hondo

Thanks for the feedback guys, I'll take your advice and get onto it.

Originally Posted by Phil325i

At the risk of sounding like a BMW technician - 'they all do that guv' (and that's not just BMWs). The only way to prevent it long term is to sand off all the corrosion and paint with high temp paint. Do it yourself - the dealer will charge you a fortune as it's labor-intensive...

Oh, s**t! Another thing to worry about.

your dealer doesnt give a rats ass.... this happens on most cars...
remove wheels, sand them with wire wheel and face mask, prep, and paint them with POR-20 or another quality high temp paint or clear...
POR-20 requires the paint to be baked in after applying...

Originally Posted by B-737

your dealer doesnt give a rats ass.... this happens on most cars...
remove wheels, sand them with wire wheel and face mask, prep, and paint them with POR-20 or another quality high temp paint or clear...
POR-20 requires the paint to be baked in after applying...

Looks like a lot of work. Bavarian Autosport sells powder-coated caliper covers (in black, red, silver and carbon fiber colors) that can be mounted in 10 minutes (so Bav claims) and will improve heat dissipation (se Bav claims). However someone has posted that the BMW dealers will claim that using caliper covers will void the factory warrantee on the brakes.

See: blog.bavauto.com/go/calipercovers

Bav Auto also sells caliper paint, which may not require baking.

Anyone care to comment on the caliper cover warrantee issue?