Thread: Disco 3 issues

For the 3.9 V8, apparently the one to use is a Genuine white tank.

As mentioned they are sold without a cap (why?) & IMHO this 'may' be where the splitting problem originated in that the pressure relief valve in the cap may not operate for whatever reason & I often add a burst of WD40 to mine, for what it is worth.

Originally Posted by Markus1

DJ. I had a look at the relatively small list of important travelling spares (height,rod,wheel speed sensors, brake globes and switch). Seemingly a single failure of any one of these items can cause suspension lowering which is a bit of a concern to me. Do you know if the iidtool can override these types of errors and temporarily pump up the suspension long enough for you to pull the EAS fuse? If I'm stuck down a track I can live without TC but obviously screwed if stuck in access height.


When my compressor started dying recently the mechanic was able to force the suspension up with his wizbang computer even though it was boinging errors at him. I then pulled the fuse and was good until next day when it all got fixed anyhow. Not sure of the Iidtools capabilities?

Cheers.
Mark

The cascading effect of a fault in a related system that triggers the suspension to lower can often be overcome by starting the engine, raising to normal height then immediately pulling the 20A engine bay suspension fuse before the other systems have detected their errors, which usually don'r occur whilst not moving. Having removed the 20A suspension fuse, also remove the 5A passenger compartment suspension fuse as that fuse is the ignition sense and with out it the suspension ecu doesn't know that the engine is running and therefore doesn't issue its regular annoying messages.

PS LLAMS can override lowered to access height but you would need to have other uses for it to warrant the expense.

Graeme. You’ve prompted me to try out some of the failure scenarios such as a faulty height sensor. It would be good to understand how that can be dealt with eg can I use the ‘manually inflate corners’ IID option to raise the car back up and then lock the mode or pull the fuse as you suggest. I carry a front and rear ABS sensor to avoid losing the 4wd capability, but not height sensors.

The suspension wont drop at all with the loss of only 1 height sensor but will drop to the bump-stops if it looses 2 or more height sensors. A faulty height sensor can be worse than a dead one so disconnecting it (unplugging the electrical connector) is a practical option. The loss of an ABS sensor will have more impact.

Thanks everyone. I've owned 6 labdrovers including 2 discos and am now seriously considering a prado or isuzu. We carry a spare brakelight switch, have a diagnostic tool, know how to do a hard reset etc.but to no avail. I think sometimes a car can be too complicated. It's a pity as it's a beautiful vehicle to drive.

Fleur...How do you do a hard reset....it's that joining the battery lug terminals together?

Graeme. That's good to know about the EAS fuses. Might even be sensible to pull it prior to wading as long as there's are no unintended consequences.

I assume that either a single dodgy abs sensor or pulling the EAS fuse doesn't do anything stupid like preventing use of low range or reduced engine power. If so would be a problem in steep off-road.

Can't wait to get the iidtool.

Cheers. Have a good end to 2018.