Unexplained warning light on Citroen C5 - what does it mean?

I have a strange warning light on my Citroen C5, which looks like a soft verge with a car is leaning on one side. I have looked through the owner’s manual, but cannot seem to find the meaning.

Secondly, my wheels are wobbling at 50mph. One wheel nut was forcefully removed because it could not come out, could that be the problem?

Asked on 24 August 2013 by fredoj

Answered by Honest John
If it has hydractive suspension it probably indicates a leaking sphere that side. The wobblling might be failing driveshafts, buckled wheels or twisted tyres.
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