The Brabus side skirt is held on secured with 6 plastic clips on the underside of the skirt, these clip back onto the inside edge of the standard sills.

Pull the skirt carefully towards you a very small amount (as if you were hinging on the top), you need to pull it sufficiently to ‘un-pop’ the plastic fixings.

Slide the skirt upwards.
There are small lugs, 3 on the front, and 3 on the back which you have to ‘un-hook’.

The back of the skirt looks like this...

It hooks onto this...

This is the front mount...

The skirt removed...