Thread: Range Rover Sport Suspension Issue

A friend has just been around with his 2010 Range Rover Sport. Over the Easter break, he had a flat right rear tyre. He jacked the right rear corner of the car up via the recommended LR procedure, and had to jack the body that high that the suspension was "super extended". Once he got it back on the ground, the back suspension levelled out at something like offroad height both sides, and has since risen to fully extended (I've never seen LR suspension this high). At the moment, the rear is "super extended" and the front appears to be at about normal offroad height (when compared to my Disco 4 parked next to it). I connected my Gap tool to his car and attempted to clear all the faults (there were many) and to lower / deflate the suspension. Could hear a "click" from somewhere near the compressor when I tried to deflate the suspension, but nothing happened - if anything, the rear rose slightly higher. We have tried everything that my Gap tool would allow (his car is not licenced to my Gap tool), and have tried everything with the normal suspension controls, including driving the car at higher than 50 km/hr (he is getting continual warnings that he is travelling too fast and the suspension is about to lower, but it still will not lower.

Looking at the angle of the rear suspension sensor arms, they are at about 45° (mine are not far from horizontal at offroad height). My suspicion is that the rear suspension sensors have moved too far and gone "out of range" causing the ecu to fault, and I am thinking of taking off the "rods" from the rear sensor arms so that I can manually move the sensors back into range.

Has anybody experienced this before and know any tricks to fix it ? I seem to recall having read about this happening before, but have searched this forum and elsewhere and cannot find anything that helps.

Cheers ....... BM

Originally Posted by Graeme

I see that it is the same as the D4 and has the same exhaust silencer as the D4 which doesn't get blocked like the L322 silencers.
It still seems like an exhaust issue but only for the rear, suggesting a blocked rear valve block or reservoir valve block.

Thanks Graeme. I had a good phone discussion with Mike (Tombie) last night and he also believes it is a blocked exhaust valve. Have a bit of a plan on how to lower it by cracking an air supply line with the vehicle sitting on stands under the chassis rail. Need to check whether it is a Hitachi or AMK compressor as likelihood seems to be a failed dessicant problem (especially if it is a Hitachi which, given that it's a 2010 is more than likely).

I have a 2011 Disco and it's also possible that mine has a Hitachi compressor - will pull the cover plate off mine today and check, and if it is a Hitachi, will order a service kit for mine as well (good to have the spare parts on hand for when I eventually have similar problem).