I still haven't got my light problem sorted but I took the ML to intercounty the other night as I was talking to the night foreman when I took a company Actros in for serviceing and he ran the computer over my ML and it came up witha load of stored faults, as we were chatting he suddenly asked if I had had the tracking done? yes says I but not by Merc dealer but aBMW speacialist and he explained hoe the Mercs have a set up and if this is not done 100% this could also bring this light on. Any way he knows the foreman in the local workshop who has said he is going to have a look at it on a Saturday morning soon. So heres hoping it might just need the tracking done .