Hello my sprinter low beam won't come on

You mean they are not functioning properly or you don't know how to turn them on? The switch is on the turn signal arm......

Hi Markw1952, Thanks for your reply. I am aware how to switch them on (fyi you use the switch on the dash not the turn signal arm) I have found the problem. The replacement bulbs were faulty.

GuruB37WH -. I know....I actually was NOT referring to the switch on the dashboard though.... there's another setting using the "M" button on the instrument cluster that will set up the lights to come on whenever the vehicle is started and turn them off when you turn off the engine.....it's pretty cool.... However, you have to realize that it does two things... your lights are on all the time when you are driving and it dims the instrument cluster making it a little harder to see the gauges during the day....minor annoyance.... I don't think there's a way to adjust the backlight on the instrument cluster....for such an expensive vehicle...you think there would be? When I drove across the USA with my Sprinter on the interstates I decided it was necessary to have the lights on 24/7... just me. One thing that is great about this is once you set it, you can forget about turning your lights on and off...it's automatic.