T5 4motion Rear Diff Lock - after market option?

[jjhobart]

I am just wondering if it is possible to get a rear diff lock fitted to my 2008 T5 4motion SWB 128kw/400nm van.(and cost indication if possible.)
I am thinking of going for a drive to Cape York and wondering how easily this can be achieved in this vehicle.
Any feedback would be appreciated.

[Toa84]

Hi JJ

Have you had any luck with information on this?

Sent from my R7g using Tapatalk

[jjhobart]

No, sorry.

[Markee]

Have you tried talking to Haldex?

[jjhobart]

No, I have decided not to continue with this idea. I have done a little test driving on tracks about as bad as any I encountered on an Around Australia trip I did in 1996 in a T3 Synchro. De Grey river, Gibb River Road, Mitchell Falls, Bungle Bungles, Employment road house, Lawn Hill to name a few of my way points.

[jonathan_k]

Bumping this one as I'm also really interested in hearing whether this is possible (and economically viable).

There is some discussion about retrofitting a rear diff lock in this thread, but it sounds like that is adding a lock to a regular diff centre.

I would instead be looking for a complete lockable diff centre and wiring from a wrecked vehicle and fitting it straight in. Being a mechanical unit, it seems possible although I don't understand the Haldex system and what interaction (if any) needs to be considered.

A few questions from other members who know the T5 mechanicals:
* Would the Haldex system be affected by a rear diff lock?
* Do any other vehicles share the same diff centre as the Transporter?

[jonathan_k]

They do come up, something like this:
VOLKSWAGEN TRANSPORTER T5 DIFF LOCK TYPE DIFF CENTRE 09N525010C #32202 | eBay

...and the part number could also be handy (not the price, though!):

https://www.onderdelenlijn.nl/en/car-parts-stock/information/part-number/09n525010c/part/4x4-differential-lock/partid/6163656/

[jonathan_k]

Page 44 of this document provides a great explanation on how the diff lock functions (2004, but I would assume it's still similar):

https://vwpress.files.wordpress.com/2012/01/ssp_333_e.pdf

The document gives a pretty good idea of what needs to be salvaged... doesn't look cheap .

[jonathan_k]

Buried in another thread about lift kits is a summary from forum member MAD:

http://www.vwwatercooled.com/forums/f136/lift-kit-t5-4-motion-supplier-101486-post1205441.html#post1205441

It's possible but sounds like a major project. Unfortunately!