sump plug washer

[jslot]

What size is the crush washer on the sump plug, and is it copper

Tia

[jimmyspeed]

Not sure the size but it will be listed on the realoem website

I'm guessing you don't have the old one to measure? , but if you do most can be carefully sanded flat with fine 1500 grit wet and dry on a flat glass or machined surface

[zd3bx]

According to RealOEM > A12X17-CU

And it seems to be copper looking at this > http://www.realoem.com/bmw/photos/07119963151.jpg

[jslot]

Thanks bpth.,

I see what that part spec means now, its 12 mm inner diameter and 17 mm outer, the cu must be for copper

I do have one but it's still holding the oil in my engine! Just wanted to get everything ready before my super-service

Thanks again

[Jona1971]

I just bought one from BMW and its aluminium colour not copper.