Self Leveling Suspension whilst Towing

leepez said:

Hi Chaps,

I noticed this weekend whilst towing the caravan that the Self Leveling Suspension light came on.
After a few tests today, the light only comes on once the caravan is hitched up. No sign of the light when driving normally without the caravan.

Any ideas where the problem could lay and where I should first start looking?

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leepez said:

Looks like the sensors DO need to be calibrated after being replaced.

Back end of my Disco is now on the floor and the compressor ain't pumping back up to required height, because I believe that the sensor is telling the ECU to let the air out as it thinks the Suspension is too high, when obviously it isn't!
Can also hear the valve block ticking away trying to release the air.

So, back end on floor and it will not raise up and am unable to drive my Disco to a specialist to get it sorted on the diagnostic's.

So the plan of action for anyone who may be in the same situation is to disconnect all electrical connections to the compressor and valve block.
Remove the left and right hand pipes from the valve block which feed the rear air bags.
Then get a 12v compressor or similar, one I used was for pumping up the tyres and connect straight onto the fittings of the pipes leading to each air bag (one at a time) The compressor will then pump each air bag up to raise the suspension. Once at above desired height (enable enough time to remove pipe) switch the compressor off and disconnect the pipe. Then very quickly screw it back into the valve block. Repeat for the other side.

You will then be able to drive your Disco to your nearest Dealer/Specialist for expert advice.

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