[ric124]

Has this happened to anyone? When I park the rear passenger side wheel center cap pops out onto the ground. It has happened a few times until one day it popped out at work and a co-worker saw it and placed it on my car for me to see it when leaving. I did not, I guess the wind took it or something.

[live4wknds]

What a bummer. Another thing I'll have to start monitoring I guess.

[Elk]

If you drive a car truly hard, with a lot of hard braking, the wheels can heat to the point that plastic center caps can deform and fall out. Thus, I tell people at the track to pop out the center caps before running.

I've never checked the center caps on an F30 but this is a possible explanation.

[ric124]

Originally Posted by Elk

If you drive a car truly hard, with a lot of hard braking, the wheels can heat to the point that plastic center caps can deform and fall out. Thus, I tell people at the track to pop out the center caps before running.

I've never checked the center caps on an F30 but this is a possible explanation.

That's what I was thinking too, contraction and expansion.

[Elk]

Not so much physical changes with temperature, but actually heating the plastic cap to the point it deforms just enough that it will not stay in. It is a common problem on tracked street cars.

[Robin_NL]

Originally Posted by Elk

If you drive a car truly hard, with a lot of hard braking, the wheels can heat to the point that plastic center caps can deform and fall out. Thus, I tell people at the track to pop out the center caps before running.

I've never checked the center caps on an F30 but this is a possible explanation.

been there done that with my ex E90 M3 on a trackday a few years ago. In the pitlane the front centre caps just popped out because of the overheated brakes/wheels.

Cheers
Robin

[MRRwheels]

That's probably why caps are not allowed on the track. If one falls on the road the next car will have a nice spin out.

[allfor335i]

Happening to my car too. Rear passenger 2013 f30 335ix. No obvious reason why. (No tracking or hard breaking).