HALDEX - a Manual Override on the Haldex rear drive control unit for off road use

[winchmeup]

I also found this guy trying to modify the haldex system. Dont know if this would help with just general 4wd driving. 50/50 drive just like a centre diff lock. I didnt read to the end to see if he got it working or not.
Techincal question for any Haldex controller "experts"

[tigger73]

Just have to be a bit careful when you go conveting systems designed for very occasional part time AWD to a constant 4WD as the clutches etc are not rated for constant use. There's a fair amount of heat generated and not a lot of cooling - just a word of caution for anyone looking to head down this route to keep an eye on temps.

[winchmeup]

Yeah i think the guy raises this concern. He is planning to have a switch so its not permanent just when required. I think he also is planning 55/45 drive to allow oil flow.

[BertieT5]

Been there, done that. If you have a factory fitted differential lock (or fit a factory unit retrofitted) then the Haldex performance unit will not function (the diff lock feature clashes & you will lose the function).

If you have a regular version, then the Haldex modification we have specifically for the T5, it will indeed bring the rears in earlier. This is a common upgrade on cars in ice country where you can break traction from a standstill (on ice) and go nowhere. We have done quite a few for that purpose

Guy I sent you a PM about this Mod. After experiencing the rears not kicking in while trying to crawl up a sand dune i'm sure it would be of great benefit.
Please let us all know a little more info. Does it require parts or is it simply a software thing??
Cheers