e39 M5 rear diff seals

[neiljohnson]

Need to change rear diff seals on the in laws 2002 M5 anyone on here done them? im an experianced mechanic and can use the workshop but its not something ive had to do before. The main issue is removel of the shaft from the diff, do i have to remove the backplate to get to locking clips or do they just pop out with a thump. Any help greatly apprieciated.

[Dave Dax builder]

Rear diff! A 4WD M5?

From a mechanic too, tut tut tut. ;o)

Edited by Dave Dax builder on Sunday 2nd December 13:44

[neiljohnson]

Thats where it always is on a BMW it aint front wheel drive

[Dave Dax builder]

neiljohnson said:

Thats where it always is on a BMW it aint front wheel drive

So no need to call it the rear one then, seeing as there is no "Front diff" option.

A bit like the:-
Front steering wheel.
Front bonnet.
Front head lights.
Rear tail lights.
Rear back seat etc. etc.

[neiljohnson]

Ok i see your point but in my defence most things i work on these days (mainstrem everyday boring stuff)are fwd so anything with a diff at the back is a novelty

[Dave Dax builder]

neiljohnson said:

anything with a diff at the back is a novelty

RWD are getting to be a dying breed, such a shame seeing as they are the most fun.
Hmmm, progress eh.

[neiljohnson]

I agree a real shame it really is a novelty to work on something rear drive and even rarer something rwd and interesting, still back to the point any idea how to take the shafts out the diff??

[Dave Dax builder]

I know my way around old Jag diffs but fortunately I haven't had to pull and if my "M"s diffs apart..............Yet!!

[JezF]

Can't comment about diff seals on a M5, but they were recently done on my M3 Evo and done by a garage rather than my mate who is a very competent amateur mechanic as he said it was a tricky job without a pit or lift. It cost me £130 with the seals.

Btw, a lot of people really rate Royal Purple diff oil, which I put in mine after the seals were done. Check out Iridium Engineering as they seem to be the cheapest on the web.

Jez

[Talkwrench]

Hi Neil. Straightforward enough job. Half shafts pop out with a thump and the main pinion slides out when you undo the big nut! Mark the position of the nut though, otherwise you may overtighten and crush the bearing. No need to remove the back plate.

These links may help :

http://www.realoem.com/bmw/showparts.do?model=DE92...
http://www.realoem.com/bmw/showparts.do?model=DE92...

Oh, and I can definitely recommend Royal Purple, too!

Edited by Talkwrench on Sunday 2nd December 16:04

[neiljohnson]

Talkwrench said:

Hi Neil. Straightforward enough job. Half shafts pop out with a thump and the main pinion slides out when you undo the big nut! Mark the position of the nut though, otherwise you may overtighten and crush the bearing. No need to remove the back plate.

These links may help :

http://www.realoem.com/bmw/showparts.do?model=DE92...
http://www.realoem.com/bmw/showparts.do?model=DE92...

Oh, and I can definitely recommend Royal Purple, too!

Edited by Talkwrench on Sunday 2nd December 16:04

thanks alot bud i no feel ready didnt think it would be that hard as book time only a couple of hours

[neiljohnson]

Fially got round to doing them took a while i know, was fairly easy just had some issues undoing some of the bolts! thanks for everyones help. Neil

[Neil.D]

Good work,

where abouts are you? Im sure you could get some work with the M5 boys who need this done...

• *Note to the government and thought police, I am not advocating cash in hand work, I thoroughly support the current tax system and find Alistair Darling strangely attractive***

[neiljohnson]

Work in sevenoaks live in chatham

Obviously any work would be appreiciated.

Edited by neiljohnson on Monday 17th March 19:03