The limit can easily be removed with a Faultmate and possibly an IID tool.

Literally takes a few minutes to do it  FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.

I think the lowering is more to do with reducing the drag on the vehicle caused by the sheer volume of air going under the vehicle and the aero affect it causes
It used to be 60mph which was sensible but fraggle rock knows why they had to make it so high when its very few countries it could get used it as it would have an affect on MPG as well.. FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.

the 2002-2005 pre-facelift will go down to motorway height between 65/70 mph , the 2006 onwards apparently go down at 100 mph.. ... - .- -.




Y. O. L. O.
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The 2006+ do not lower - or if they do they do not indicate this fact. I have tried this on a 4.2SC, 5.0SC and 3.6TDV8.

Oh in regards the tyres, yes V rated say 149mph, but next time you run at 130mph, stop at a fuel station and either check your pressures or simply feel how hot the tyres are. I for one would not want to blow out a front at that speed. I also assume you are adjusting your pressures as per the handbook for sustained high speed cruising.... Land Rover Addict
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The 2006+ definitely do lower and it's marginally visible on the "off-road screen" but isn't indicated as anything special. You can just see the car sitting lower on that screen (similar to access mode). This is something I'd recommend you get a passenger to check though as you should be looking ahead when you're going that fast. It raises up after you've slowed down to less than 80 for about 30 seconds. 
07 Supercharged - Still breaking her in!

Boot soundproofing part 1 - http://www.fullfatrr.com/forum/topic15612.html
Custom exhaust - http://www.fullfatrr.com/forum/topic15296.html
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DMRR wrote:

The 2006+ do not lower - or if they do they do not indicate this fact

kingpleb wrote:

I think the lowering is more to do with reducing the drag on the vehicle caused by the sheer volume of air going under the vehicle and the aero affect it causes

^^ something i'm hoping to change with some more fiddling

And well, 650kg per tyre at that speed constantly flexing and then some depending on the road should make a lot of heat, though nitrogen filled will also help a little for this.

I think the heat is more likely to cause rubber bobbling, especially on warm days. maybe fine if the temps are low but sustained high speed for them isn't something id want to try either, maybe a quick blast upto the speed would be ok though.. FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.

I've driven loads on the German autobahn, often in the middle of the night, and it's very rare you're able to sustain those kinds of speeds for any length of time, especially in a vehicle that takes quite a while to get there. You'd have to be nuts to go past a line of trucks doing 55mph when you're at 150mph.

At least on the autobahns I've driven on - maybe there are some totally deserted stretches some where.

I'd expect tyre manufactures to be conservative with speed and weight ratings anyway.

My 2006 is already 20mm lower than standard across all modes to make it handle better in corners, are you saying at 100mph I'm riding AT access height-20mm? I think you will find I am not!

In the handbook you will find it states a mode change on the 4x4 screen. This DOES NOT OCCUR.

As for it pitching up again when you slow down, you can make that happen at traffic lights in 30mph traffic - caused oddly enough by braking. Land Rover Addict
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2004 4.4V8 Vogue

DMRR wrote:

My 2006 is already 20mm lower than standard across all modes to make it handle better in corners, are you saying at 100mph I'm riding AT access height-20mm? I think you will find I am not!

In the handbook you will find it states a mode change on the 4x4 screen. This DOES NOT OCCUR.

2006 Owner' s Manual wrote:

High Speed Suspension Height

This vehicle has a feature which lowers the suspension ride height by 20 mm if the vehicle exceeds 160 km/h (100 mph). The driver has no control over this and is designed to improve high speed stability.

Note: NEVER exceed the speed limits.

2007 Owner's Manual wrote:

High Speed Height

This feature is designed to improve vehicle stability at higher speeds, and lowers the suspension ride height by 20 mm (0.8 inches) if the vehicle exceeds 160 km/h (100 mph) for longer than five seconds. This action is automatic and cannot be overridden. Ride height will return to normal when vehicle speed returns below 130 km/h (80 mph) for 30 seconds.

Note: Never exceed the speed limits.

Quote:

High Speed Mode

High speed mode is a non-selectable, automatic mode which lowers the vehicle height by 20mm to improve vehicle handling. This feature is fully automated and is 'invisible' to the driver.

If the vehicle speed exceeds 100 mph (160 km/h) for more than five seconds, the air suspension control module initiates the high speed mode. When the vehicle speed reduces to less than 80 mph (130 km/h) for more than 30 seconds, the vehicle returns to the On-Road height. This function is cancelled if a trailer is connected to the trailer socket.

DMRR wrote:

In the handbook you will find it states a mode change on the 4x4 screen. This DOES NOT OCCUR.

Quote:

As for what yours does, who knows? That's why it's best not to mess with things you don't understand. Access height is, however, 40 mm lower than On-road height.

Quote:

DMRR, what evidence do you have that the handbook is wrong on this?

DMRR, i can only think that because you have lowered yours 'manually' then the ranges ecu cant lower it any more when you do go above 100 mph.. ... - .- -.




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