Step #1: Scan for codes...

Ambient light settings are in the cluster, at least on US models, I can't remember under which menu. I guess it can't hurt to check the fuses, but you'd need to know which one or better yet having a wiring diagram.

Step #2: Get a copy of EPC/WIS off eBay for future troubleshooting.

 

No codes= I have *. Fuses checked. Yes light setting are in cluster, setting brightness 0-5 is only one for ambient.

 

A quick look in WIS and that system is on the CAN, with the door ambient light LED strips connected the the door modules (N69/2 and N/69/3).

I'm wondering if the car was sold as a taxi originally and thus likely was coded as such for certain features. Without a proper scanner, like Xentry, it might be difficult. My first step would be connecting the door module, or front SAM, or whatever controls the lighting or check for inputs and/or activate features.

 

Well, I checked with my launch scanner and I don't see an ambient light parameter in the few modules I checked on my 2011 (front sam, front door, instrument cluster, central gateway, rear sam, command). There are parameters for switch illumination, illumination setting, cluster backlight, overhead light, etc... I thought I saw an exterior ambient light parameter, which I believe is the light under the side mirror... but I couldn't find it when I looked a second time.

Xentry may have more access, can't check at moment.

 

I been diggin aroun whit xentry. I can turn on console ambience lights from front sam and they works. I can turn on also door ambience lights from door modules. So they working whit star but not when i taking it off. Thats a stange thing 🤔 Dont know what to do now.

 

Well that's good, means the LEDs can work. The next thing would be input, what enables the ambient lights? I'm thinking the light sensor that enables the headlights. Does the auto headlight function work?

 

Yes it works. Evrything in lights work, LDR, IHC, CI,

 

Is there separate ambience illumination control unit or not in W212?

 

Here's a function diagram for my '11 E350... it appears this is not a separate function. The front SAM controls the illumination based on inputs from the EIS (either key position or whether car is locked/unlocked, not sure), instrument cluster (light setting) and the rain/light sensor.

It sounds like something in the SAM, maybe is a variant coding and it needs to be re-flashed. You'll need something with more skills than me.

 

Been digging whit vediamo. Problem solved 👌 In IC was wrong color selected. Originally this year have one color. Blue was selected in IC. I changed the color and it started working. At the same time I activated the menu to appear in IC. Now if i change color to polar it shut down, in neutral its less bright and in solar full brightnes 💪