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Model specific boards => Golf mk4 => Topic started by: GTI.T on 09 January 2013, 21:22

Title: what is the haldex??
Post by: GTI.T on 09 January 2013, 21:22

as the subject states and is it on all golfs?

Title: Re: what is the haldex??
Post by: Wayne on 09 January 2013, 21:34

Quote from: GTI.T on 09 January 2013, 21:22

as the subject states and is it on all golfs?

It is only fitted to the 4mo and R32 with 4wd

Title: Re: what is the haldex??
Post by: dan2252 on 09 January 2013, 21:37

Basically it stops the rear wheels driving the car unless you boot it or it looses traction, and cost a fortune when they go wrong! Haha

Title: Re: what is the haldex??
Post by: GTI.T on 09 January 2013, 21:38

Cheers wayne :)

Title: Re: what is the haldex??
Post by: MoshiMoshi on 10 January 2013, 22:09

Surely it's an electronically controlled differential? Am I right?

Title: Re: what is the haldex??
Post by: sveed1.8T on 11 January 2013, 09:59

Quote from: dan2252 on 09 January 2013, 21:37

Basically it stops the rear wheels driving the car unless you boot it or it looses traction, and cost a fortune when they go wrong! Haha

Does that basically mean that it's not a full time 4wheel drive system, and more an elaborate form of traction control?!

Title: Re: what is the haldex??
Post by: damien010685 on 11 January 2013, 10:06

Nope it's not perm 4x4 selective bases on loss of traction works well but as said can cost a lot when gone wrong

Title: Re: what is the haldex??
Post by: Jin_C on 11 January 2013, 10:30

http://lmgtfy.com/?q=mk4+golf+haldex (http://lmgtfy.com/?q=mk4+golf+haldex)

Title: Re: what is the haldex??
Post by: sveed1.8T on 11 January 2013, 10:48

Quote from: damien010685 on 11 January 2013, 10:06

Nope it's not perm 4x4 selective bases on loss of traction works well but as said can cost a lot when gone wrong

Did audi use this system in their early quattros (mk1 TT, A3 Quattro etc). I don't get why you'd opt to have a system that would work part of the time but not all of the time? :undecided:

Did vw stick with this system with the Mk5, or did they opt for permanent 4X4?

Title: Re: what is the haldex??
Post by: xxChrisxx on 11 January 2013, 11:14

quattro is a permanent 'full fat' 4WD system. It's based on locking diffs (later torque sensing diffs).  Audi's used it becuase their engine configuration was/is longditudinally mounted.

You can't use this permanent system wth transverse mounted powertrain, so the Haldex system is used. Which uses a clutching system to mimic a centre diff. If you are running permanently like this the clutches burn out.

Title: Re: what is the haldex??
Post by: sveed1.8T on 11 January 2013, 11:25

Trust VW to get their engines the wrong way round! :rolleyes:

Title: Re: what is the haldex??
Post by: damien010685 on 11 January 2013, 12:30

I think it was only the mk1 s3 that had haldex even though they called it Quattro

Title: Re: what is the haldex??
Post by: mcgee9t2 on 11 January 2013, 12:46

Quote from: damien010685 on 11 January 2013, 12:30

I think it was only the mk1 s3 that had haldex even though they called it Quattro

yeah i belive so.

and nope as said only part time 4wd.

when the front looses tracktion it sends something like 20% power to rear wheels i believe

Title: Re: what is the haldex??
Post by: damien010685 on 11 January 2013, 13:00

Think standard setup is 70/ 30 split but have heard folk do 50/50 but I havnt bothered as the 4x4 in my 4mo works like a dream no wheelspin and epic in bad weather

Title: Re: what is the haldex??
Post by: sveed1.8T on 11 January 2013, 13:31

For the record, I'd still love to have it!! :kiss:

Title: Re: what is the haldex??
Post by: brett on 11 January 2013, 16:31

still loving my 4mo ,but havent had any really bad weather yet ,although it is meant to snow round my way this weekend