WDH Dilemma

Submitted: Friday, Feb 19, 2010 at 17:28
ThreadID: 76158 Views:2676 Replies:8 FollowUps:10
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The Landrover TD4 V6 TTD is becoming a serious contender to replace my current tow vehicle, an 80 Series Cruiser. In all ways I've looked at this and other vehiclles such as the VW Taureg I am most impressed with the LandRover D4.

Of course there has to be a hitch, pardon the pun. Landrover has told me categorically that to use a WDH with this vehicle would void the warranty on the vehicle. Is that serious enough a problem to walk away or do I ditch the hitch?

WBS
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Reply By: Rangiephil - Friday, Feb 19, 2010 at 17:33

Friday, Feb 19, 2010 at 17:33
Why not ask on AULRO there are lots of D3 /D$ owners ther eand this topic has come up before AFAIR.
Regards Philip A
AnswerID: 404945

Reply By: Gone Bush (WA) - Friday, Feb 19, 2010 at 17:36

Friday, Feb 19, 2010 at 17:36
I'm not a Landrover owner but I have read plenty on the topic.

It is true and apparently it does not need the WDH system. Something to do with the airbag suspension.

Some friends tow a 20' Bushtracker (3 tonnes or more) with theirs and they say it tows beautifully.

cheers

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AnswerID: 404947

Reply By: Steve - Friday, Feb 19, 2010 at 18:20

Friday, Feb 19, 2010 at 18:20
follow this link matey:

http://www.aulro.com/afvb/d3-d4-zone/?daysprune=30

you'll find all you need to know on there if you browse around and if you register with them you can even ask a specific question if you can't find what you need to know on that link or in the search facility.
AnswerID: 404951

Reply By: garrycol - Friday, Feb 19, 2010 at 18:58

Friday, Feb 19, 2010 at 18:58
If Land Rover says that a D4 does not need a WDH why would it worry you.Suspension systems have changed since the WDH was invented so as long as your van is within the tow requirements (ie ball weight/overall weight) for a D4 I do not see it as an issue.
AnswerID: 404953

Reply By: Ozrover - Friday, Feb 19, 2010 at 20:11

Friday, Feb 19, 2010 at 20:11
WBS,

I had a Disco II with SLS (self levelling suspension) & it didn't need a WDH until I blew out an air bag & converted it to coils.

I had to go to the heaviest coils that I could find & add polyair bags as well as a WDH to get it back to the same handling as when it had the standard SLS fitted.

It was amazing to see the car adjust itself to the extra load, & that was the state of the art technology ten years ago, I reckon they would know what they're doing by now!

Russ & Sue are talking about getting a Disco IV to tow their Kedron around.

AnswerID: 404960

Reply By: Member - Dogbolter (VIC) - Friday, Feb 19, 2010 at 20:55

Friday, Feb 19, 2010 at 20:55
WBS,
Don't worry about a WDH. The Disco suspension adjusts itself to the right hieght.
I have towed a van all over the outback with a TD3 V6 and have never had cause for concern with towing setup or stability.
AnswerID: 404963

Reply By: GerryP - Friday, Feb 19, 2010 at 23:20

Friday, Feb 19, 2010 at 23:20
Hi all,

I have a real problem with all of this... a WDH is not there just to adjust the ride height, it's main function in fact, is to redistribute the weight from the rear, back to the front wheels.

No matter how much self levelling occurs (by lifting the rear), with a heavy load on the ball the front wheels will still have a reduced amount of weight on them. Hence the term "Weight Distribution Hitch".

I know I'll get some comments here, but I'd walk away...

Cheers
Gerry
AnswerID: 404977

Follow Up By: Dennis Ellery - Saturday, Feb 20, 2010 at 01:06

Saturday, Feb 20, 2010 at 01:06
Spot on GerryP – simple geometry.
If you level the vehicle by jacking up the back wheels, you still have reduced grip on the front wheels.
Not my cup of tea.
Regards Dennis
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FollowupID: 674694

Follow Up By: Alloy c/t - Saturday, Feb 20, 2010 at 10:38

Saturday, Feb 20, 2010 at 10:38
So the company engineers who designed the vehicle in question and specificly state NOT to use a WDH are wrong ? Simple geometry ? Think outside the square .
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FollowupID: 674715

Follow Up By: Dennis Ellery - Saturday, Feb 20, 2010 at 12:18

Saturday, Feb 20, 2010 at 12:18
Allan those engineers are correct and are simply saying that their vehicle is not designed to handle a WDH as it may upset the vehicle's handling.
It doesn't change the fact that if you take weight off its front wheels – you will get less grip.
Its a matter of choice on whether or not you purchase a vehicle that allows you to use a WHD.
Regards Dennis
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FollowupID: 674735

Follow Up By: ozjohn0 - Sunday, Feb 21, 2010 at 11:03

Sunday, Feb 21, 2010 at 11:03
I'm with Gerry on this issue.
It's been raised many time on a number of Forums and in caravanning mags, not the least by Tom Olthoff. LR engineers have their heads in the sand on this issue and to place a van with a heavy ball weight on the rear of a LR still reduces the weight on the front wheels and increases the weight on the rear wheels no matter how good their self leveling system is.
ozjohn.
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FollowupID: 674879

Reply By: Member - Don M (NSW) - Saturday, Feb 20, 2010 at 14:52

Saturday, Feb 20, 2010 at 14:52
I think Landrover are very mischievous in this matter. Their vehicles are designed to tow in UK/Europe where the TBM is legislated to be 100kg max. so in that case no issue.

A lot of Aussie vans have TBM's over 300kg (mine has 305kg) and whehter that's good or bad is another point altogether but those are the facts at the moment. And, with that TBM or in fact anything much more than 120/140kg, which includes almost every van, certainly larger , sold in Australia ones, then you will take too much weight off the front wheels with consequent loss of steering and control. It doesn't matter how much you raise the rear wheels to LEVEL the vehicle...that is merely aesthetics, the weight is still off the front wheels. Think od a see saw...put a 100kg guy on one side and a 80kg guy on the other..., will you balance the see saw if you raise the bar..??? NO..!!!

The only way to get weight back on the front wheels is with a WDH..,at least at the moment and LR are only saying you can't use one because it upsets their computer controlling the suspension..but believe me, you need it with a big van.

It is the reason I went for the LC200 over the D3
AnswerID: 405048

Follow Up By: Member - Don M (NSW) - Saturday, Feb 20, 2010 at 14:55

Saturday, Feb 20, 2010 at 14:55
oops, sorry about the spelling and grammar...

...larger ones, sold in Australia.... and think OF a seesaw...
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FollowupID: 674752

Follow Up By: Ken - Saturday, Feb 20, 2010 at 17:30

Saturday, Feb 20, 2010 at 17:30
So then it follows that 3 big blokes in the rear seats will also make the vehicle unsafe ?

Ken
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FollowupID: 674773

Follow Up By: Member - Don M (NSW) - Saturday, Feb 20, 2010 at 17:38

Saturday, Feb 20, 2010 at 17:38
Sarcastic and not thinking either...the 3 big blokes are in FRONT of the axle/rear wheels and therefore the weight is distributed across both front and rear wheels, unlike the downforce imposed by a caravan which is something like a metre BEHIND the rear wheels....and like a heavy bloke/s on a seesaw. is lifting the front wheels. Understand..??
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FollowupID: 674776

Follow Up By: Dennis Ellery - Saturday, Feb 20, 2010 at 18:44

Saturday, Feb 20, 2010 at 18:44
Don,
You will have to stop using logic - you're confusing them.
Ha Ha
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FollowupID: 674784

Follow Up By: Alloy c/t - Sunday, Feb 21, 2010 at 11:16

Sunday, Feb 21, 2010 at 11:16
Then 1 could argue that if the towbar mounting point was just forward of the rear suspension the weight is = ly distributed front and rear , , think outside the square.
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FollowupID: 674882

Follow Up By: Dennis Ellery - Sunday, Feb 21, 2010 at 14:00

Sunday, Feb 21, 2010 at 14:00
That wouldn’t change the weight distribution – you really should do some geometry.
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FollowupID: 674899

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