Help sl55amg keeps dropping front right

[Mercedes-sl55-2003]

Hi I've got an ABC warning coming up on my dash to visit work shop.
I have a 2003 merc sl55
The problem is when I stop my front left lowers itself almost to the ground but when I switch engine back on it rises itself back up to normal.

Has anyone else experienced this prob?

 

[Cole@MBS]

It sounds like you have a fault with the front valve body, sounds like that front legs control valve is stuck open a tad when it should close, they can be stripped down and cleaned out, a new one is around £1000..........