Leaking / Faulty Differential?

RKR · 10-28-2022, 02:40 AM

My gf's m2 comp has developed what looks like a leak from the output shaft on the diff. Can anyone confirm if that looks to be true going by this rubbish picture?

The car has recently developed heavy vibration under WOT however only really at speeds greater than 80mph. Putting 2 and 2 together here given the vibrations and looking at the residue on the midpipe but I could be completely wrong!

Thanks

David.m · 10-29-2022, 04:41 PM

It's likely the driveshaft seal, it's not uncommon on F8X cars (not long ago had mine replaced at 100K km). The sub-frame has to be dropped to replace it so it's worth having all 3 seals done together.
Probably want to get under and confirm source of the leak though

10-28-2022, 02:40 AM	#1
RKR Second Lieutenant 279 Rep 243 Posts Drives: F80 ZCP Join Date: Dec 2012 Location: Aberdeen. iTrader: (0)	Leaking / Faulty Differential? My gf's m2 comp has developed what looks like a leak from the output shaft on the diff. Can anyone confirm if that looks to be true going by this rubbish picture? The car has recently developed heavy vibration under WOT however only really at speeds greater than 80mph. Putting 2 and 2 together here given the vibrations and looking at the residue on the midpipe but I could be completely wrong! Thanks Attached Images __________________ Flickr
	Appreciate 0 Tweet Quote

10-29-2022, 04:41 PM	#2
David.m Lieutenant 437 Rep 553 Posts Drives: M2 LCI 6MT BSM Join Date: Aug 2016 Location: Australia iTrader: (0)	It's likely the driveshaft seal, it's not uncommon on F8X cars (not long ago had mine replaced at 100K km). The sub-frame has to be dropped to replace it so it's worth having all 3 seals done together. Probably want to get under and confirm source of the leak though
	Appreciate 1 RKR278.50 Quote