BMW R1200RT/R1250RT Forum

It has occurred to me that something might be ass backwards here. I have taken notice that in all the documents I have read so far, an O-Ring is specified for the drain plug on the Bevel housing while a crush washer is for the fill/level plug.
Shouldn't it be the other way around?
Every drain plug on every vehicle I have ever owned called for a crush washer. Seems to me, the o-ring is more appropriate for the fill/level plug where there is less chance of leakage anyways.

What say you folks ?!

Shuswaper wrote: ↑Wed Oct 09, 2024 2:12 amAn O-Ring is specified for the drain plug on the Bevel housing while a crush washer is for the fill/level plug. Shouldn't it be the other way around?

No, the design of the two plugs if different.

Drain plug.


Fill plug.

Thanks for that David, haven't had to do the oil change yet, so I wasn't aware of the exact design difference in the parts !!

Cheers.