Rear Suspension Discovery TD5 2002

[rhys27]

Hi Guys,

Old man has a problem with his 2002 TD5 Discovery.. he lives in france and doesnt have enough technical vocab in french to properly chat to the technicians at landrover in france.

The rear suspension drops with no apparent warning. It comes back up if it is left off for an hour/overnight, however there is no pattern to it.
It has just happened again whilst he was driving it, and had to drive home at 2mph!

It has been into a main dealer in france, and they cannot find anything wrong with it, even after keeping it for a week and trying to replicate the fault. Old man reckons its the Rear Suspension ECU? (under the dash?) It is deffinitally not the Air Bags as it does inflate.

I have just rang a LR dealer in Derby and asked for the Rear Sus ECU, the technician has told me its actually the compressor - part number: RQG100041.

Has anyone else had any similar issues? if so what was the cause?
any help appreciated, sorry for the long winded post!

Regards,
Rhys

[rhys27]

BLUETHUNDER said:

It points to a compressor or valve block failure.

compressor? it does stay up for days/weeks but it just suddenly drops sometimes. He doesnt think its the airbags, and landrover france have found no fault codes on the SLABS ECU (self leveling/antilock braking system) so could it be the SLABS ECU?

I've heard its quite a common fault (rear sus dropping), but cant seem to find much info on it!

so its either: Compressor, Air Bags (which will ruin the compressor if left with leak) or the SLABS ECU?
how can this be narrowed down?

[rhys27]

The first thing he changed was the RHS (ride height sensor) which didnt do anything.
He's got fed up with it, and taken it into landrover dealer, who have finally decided (they had it for a week prior to this) that the airbags need replacing.

Will see what happens!

thanks for all the input/ideas guys! appreciated!
Rhys