Hi all, newbie posting my first message so any help appreciated please. I bought a 2015 SL400 in the summer but I haven't driven it often in the dark outside built up areas. I know it's got the intelligent light system with cornering lights etc, and high beam assist. I have noticed the main beam has NEVER come on and TBH put that down to the fact that there is usually at least some light from street lights but last night my son took it for a spin into the countryside and the main beam still didn't come on. I always leave the lights on auto and when I push the stalk forward the symbol suggesting the HBA system has engaged lights up on the dashboard but the beam doesn't come on. The settings function says I can disable the intelligent light system but this doesn't appear to make any difference. I learnt from this forum (thank you) that if I move the light switch from auto the main beam works on manual (and has to be knocked off if a car approaches) but I don't want to override it or disable it, I want the system to work as designed! Any thoughts please?