Thread: D4 Summary-New bits etc

Hi Alan,
This is from my notes..so here goes.

" "Trailer Stability Assist" detects trailer oscilations by examining the towing vehicles behaviour. When the system detects that the towing vehicle is swinging in response to trailer oscilations, it either reduces engine torque or applies the brakes to help recover control.

Vehicle speed is reduced by applying all the brakes or applying them asymetrically, when control may be regained faster with selective braking.

The system operates up to the maximum vehicle speed regardless of whether trailer electrics have been detected. to prevent false interventions on non-townig vehicles, a higher oscilation threshold is used when trailer electrics are not detected.

The brake lights are illuminated when vehicle deceleration exceeds 0.7g"

A lot of the information is taken by the "G" sensors, steering wheel sensors etc. I have yet to drive a vehicle with a trailer to see how it works but in time it will happen.

Cheers HTH.

Originally Posted by djhampson

yeah thats what I'm talking about too. Hold the Lock button on the FL fob and the windows go up (i think the sunroof closes if its fitted) and the opposite happens when you hold the Unlock button.

Can any age D3 be programmed to do this? I figured that because it didn't have one-touch up down on all of the windows it wasn't possible. I've got a 2006 SE btw.

I think it is only for 07MY onwards.

& yes you are right as i have played with the FL2 & it does have Lazy locking.
Good point..

Originally Posted by sniegy

I think it is only for 07MY onwards.

Bugger Oh well...

Originally Posted by djhampson

Bugger Oh well...

have dave....lets swap cars for a few days, the last thing you will be worried about is weather the windows go up or down when locking the car with the fob.........hang on central locking never knew it existed

hehehe ahhh no

I'm driving the RRS at the moment actually. Dad's working overseas for a month so I have to drive it to keep the odometer ticking over... lifes a real bitch sometimes!

Sounds like a nice vehicle, but I already have about 80% of the stuff listed on my 09TDV6 SE.

Originally Posted by sniegy

Hi Alan,
This is from my notes..so here goes.

Clever. Would be a lot more effective than tryng to do it manually. I wonder how it performs with load balancing trailer hitches or in offroad conditions.

Another of those things that are long overdue.

Alan

Originally Posted by disco2hse

Clever. Would be a lot more effective than tryng to do it manually. I wonder how it performs with load balancing trailer hitches or in offroad conditions.

Another of those things that are long overdue.

Alan

TSC is there is to combat trailer sway, which when a trailer oscillates in increasing frequency at speed due to some initial disturbance such as a sudden gust of wind, instead of the rig dampening out the disturbance. It is caused by incorrect tow setup, usually the CoG too far back. I'm in two minds about TSC. It is a good safety feature, but on the other hand means that poorly set up trailers can now be towed. Hopefully when it kicks in it does so in such a way to let you know something is wrong, as opposed to the subtle intrusion of something like CBC. TSC is not unique to Land Rover. It won't work at low speeds offroad, however the normal ESC will, but usually you'd want that disabled. If the D4 is approved for a hitch, which I doubt, then TSC would work with it. All TSC does is figure out a trailer is hooked up and when it detects sway -- easy to do as there will be a force on the rear wheels -- it'll alternately brake the front wheels and chop the throttle to bring things under control. The rear wheels aren't braked because they need all their grip for lateral control.