Illuminated Sill Lights - Factory Wiring - How to turn sill light option on
I have a W463 2016 - did not have illuminated sill lights when purchased.
I installed some illuminated door sills (brabus aftermarket) and noticed that the car had wires (positive and negative) and a connector plug (not connected) under the sill cover at each door as if it was pre-wired for sill lights. The earth registers as connected to body/chassis and there is 0.2v registering on the positive. I assume that Mercedes would have turned off the sill illumination function - so as not to have 12v live wire flopping about under the sill covers - perhaps the 0.2v is residual power flowing through despite the option being turned off. However, I cannot find how to turn the illuminated sill light system 'on' - I have looked at all the buttons on the roof dome light, looked at the command system on the dash which controls lighting (puddle light, interior light, running lights etc) - but there is no 'sill light' option.
I am told that they were a dealer fitted option.
To turn the option on - do I need to get into the Engineering Mode? Or am I missing something else?
Thanks in advance and kind regards,


