[dejja]

Was taking an exit and slid out on black ice and hit my rear wheel against a curb going around 30. Does anyone know how bad the damage could be? it’s a 2015 330i with 40k miles

[Polo08816]

That does not look good. I wouldn't be surprised if the entire rear suspension on that side needs to be replaced.

You would need to put it on a lift to get a better idea.

[Watsey]

Impossible to say. There are too many factors.

It needs to be recovered to a professional 'shop for a full inspection and repair.

Given that the suspension has collapsed I'd say that it's a given that at least one control arm has bent/snapped. You should also check the wheel hub carrier, damper, subframe, wheel, tyre, and the suspension components on the right rear.

[casualDIYer]

Check item #4. It’s likely severely bent. It holds the spring up.

[cfm56d7b]

Remote diagnostics are what they are ...

Please tow (flatbed) your car to a reputable shop and ask them to perform a thorough inspection.

[thatgarrett]

You won’t know until they tear into it, but you might have gotten lucky by only hitting the wheel and not the quarter panel or any of the body, I had the same thing happen in my old e39 but I hit one of those concrete barriers on the wheel and the panel and that crunched the unibody- much easier to replace subframe or suspension components than the unibody, but no way to tell until it’s on a lift and torn into

[cleaver]

$10k+
Don't ask me how I know :-(

[casualDIYer]

Originally Posted by cleaver

$10k+
Don't ask me how I know :-(

Ouch!

[E90lova]

Possible rear diff damage and driver side axle as well. Hopefully no rear subframe damage. Oh and don't forget possible wheel bearing damage as well.