hi, I have a 2009 C5 2.0ltr diesel exclusive. I was giving my father a lift and set the car to the highest level and lowered the car down again, did this twice more as He needed to get out. when I dropped him home the suspension did not rise.
Driving home I got the suspension fault 90KPH....
I cheeked the Fluid level and noticed that I was low, so I topped up the fluid, and the error stop been displayed. I drove home with no issues. The following day the message reappeared. The car felt very soft and bouncy and I noticed that the fluid was coming out from under the cap on the LDS tank.
When I turn of the car and lock the doors and unlock the car the message is not displayed until I drive the car for a @ 5 mins
The buttons are working and when you press to higher the car the screen displays the car raising message, but the suspension does not rise.
I've noticed a high wining noise when I unlock the car, ive checked all fuses including the maxi fuses under the main fuse panel.
I also have to ask what happens when LHM fluid and LDS fluid is mixed in the tank, as I found out the my local mechanic had put in some LHM fluid by mistake.