New to forum and apologies if I have posted in wrong place. Car has recently been in dealership to get a valve changed on air conditioner and have just noticed there seems to be a leak. I thought it may be condensation but the liquid is not evaporating on floor. I have attached some photos and any guidance would be appreciated before I take it back to dealer. The leak is at front left of car just behind fan, and don't want to take it to Mercedes if it not related to the work they have done as they charge £110 per hour.