I’ve just bought a pair of aero cills and I’m ready to pick them up from the body shop. I’ve removed my old ones hoping to reuse the clips but it doesn’t look like that’s going to be possible. Where would I get new ones? The dealer?
Sgr74, www.realoem.com is your friend This is the page for Cover Door Sill/Wheelarch
https://www.realoem.com/bmw/enUS/showparts?id=BT32-EUR-05-2003-E85-BMW-Z4_25i&diagId=51_4862
Put the relevant part number into Google and you'll probably get a list of suppliers as long as your arm