peterws1957
Senior Member
- Joined
- Apr 3, 2016
- Messages
- 1,835
- Reaction score
- 1,332
- Location
- Lancashire
- Your Mercedes
- sl350 /2004/3.7 and CL65/2009/6.0
Not sure if you are aware MBGB but (and I am assuming that you are referring to the cruise control switch) when the LED light on the switch is ON Cruise control is OFF and wont work. When the light is OFF cruise control is activated and will work. Speedtronic is activated (and will show on instruments IIRC) when the light is ON. Confusing isn't it? Apologies if I have misread what you have been saying but your references to overdrive has confused it.