XSeries-forum

Good evening Gents,

What oil does an E53 Diesel like in her Rear / Front Diffs ?

Just been underneath & spotted an input shaft diff seal leak, so I want to wiz some more oil in there while I get around to changing the seal some time.

Regards to all

Front and Rear diff: Fully synthetic 75w90

I used around 2.5L in total, so you will need 3L.

This is the OE oil BMW recommend:
http://www.opieoils.co.uk/p-737-castrol ... 5w-90.aspx

Really useful checker from Castrol here:
http://oilselector.castrol.com/c/uk/eng/search

Procedure links see here:
http://xdrivers.co.uk/forum/https://xdr ... ic.php?t=2

http://www.pelicanparts.com/techarticle ... cement.htm

Its a 14mm hex socket for filler and drain plug - not a size normally carried, had to go buy a set especially for this big boy.

Good luck.

Many thanks