Rust Resistance?

[Rupes]

Curious to see how the M3 is holding up for those of you that drive it in the snow / salt. Have you noticed any unusual rust on the underside of the car? My understanding is that BMW's have pretty good rust protection.

[besiktas]

too early to tell no? the car has been out for maximum 7 years. the rusting usually happens after 10 i think

[tdott]

Considering it has plastic fenders, aluminum hood and trunk.

I don't believe the doors are, right? If so then the only body panels that will rust is the doors and rear fenders. Maybe also underneath the side skirts.

[Rupes]

Originally Posted by besiktas

too early to tell no? the car has been out for maximum 7 years. the rusting usually happens after 10 i think

Yeah, I hear ya. I guess I was more interested in the corrosion to the components you can't see under the car / hood instead of the body panels.

[Helmsman]

Only been out one winter but still 3 long seasons on the road. Had the first inspection the other week when I got a proper look under neith when on lift - Clean as a wissle all over, pleasure to the eye.

[m3ray]

Aluminum rusts? lol

[m3ray]

Originally Posted by tdott

Considering it has plastic fenders, aluminum hood and trunk.

I don't believe the doors are, right? If so then the only body panels that will rust is the doors and rear fenders. Maybe also underneath the side skirts.

That would only happen if the paint gets chipped, or you catch a shunt and don't repair it. I don't think rust is a serious concern with these cars and certainly not after only 7 years.

[1MOREMOD]

Originally Posted by m3ray

That would only happen if the paint gets chipped, or you catch a shunt and don't repair it. I don't think rust is a serious concern with these cars and certainly not after only 7 years.

I covered mine in vaseline just to be sure.