hripsi

Hello everyone
My car is mercedes e class w212 facelift 2014 Europe. I have problem with front headlight /parking light led
I replace control module ballast and everything works without daylight. The daylight switch on sometimes and when i take to ignition it stop working and the computer makes a mistake “check front right parking light”. The ballast is get from another car. I coded to headlight with xentry online.
Еven after coding, daylight comes on and goes out after starting the engine.
Please help me.
The headlight has been removed recycled and tested all the lights and its functions work.I used xentry online and the errors that come out are : led exterior lighting right front has a malfunction. there is an open circuit.Low value of voltage at circuit.
The problem is in right headlight. I put balast and control module from the left headlight to the right headlight and the daylight also doesnt work properly. I put the right headlight on leftside and daylight also doesnt work. Boys that open the headlight tell me that there isn’t a problem with lights they have test them and every lights work but when i put in the car and the daylight work 5 sec and when start engine it stop working.
is it possible that i need to change the headlight.
please help me with some solution

CaliBenzDriver

Is your Xentry "guided testing" of any help to pin point your issue?
I am a bit confused about this problem & testing to suggest a next step.

hripsi

No i don’t have

bmwpowere36m3

Maybe a picture of which light/s aren't working and the headlight switch (to show which position its in). Are we talking about DRLs or parking lights, did it work before?

hripsi

this is parking light, it doesn`t work at any of the knob positions. They works before one rainy day. The control module burned out, i replace it, then coded it. After that this parking light only goes on when put the key in car and when start the engine it goes out and the computer makes a mistake “check front right parking light”. And come a mistake in xentry there is an open circuit.Low value of voltage at circuit.""

S-Prihadi

I notice now 2014 Facelift Dynamic LED option 641/642 starting to have problems reported in the forum. Last year wasn't so.
7 years old now those . Hmmm... , scarry.

This 641/642 LED, parking and DRL basically uses the same eye brow x 2 modules, but the parking is less bright than DRL.
So if say per eye brow there are 10 baby LED module, parking only get 5...something like that.
My understanding for PARKING LIGHT is 1 side only, you choose LEFT or RIGHT, can not be both,
The normal standing light is now DRL which will be activated as long as engine is ON or iginition at position 2 ( ready to crank ).

H,
See what channels are shown on the Xentry and their power rating.
Maybe there is an error of programming between Parking Light and DRL

bmwpowere36m3

The issue appears to be the headlight assembly as you've swapped the modules and they work on the other side. When you swap the headlight it doesn't.... seems simple to me.

CaliBenzDriver

before you ditch the faulty headlight that test good but "stops with engine running"...

Take a real close look from male/female side at all the CONNECTORS PINS :
- Wiring harness
- Ballast driver
The fragile pins may show some type of distress.

bmwpowere36m3

That's a good point, he could take the left headlight (works 100%) and plug it on the right side, that would verify the vehicle wiring is good. If it was a module pin issue, it would have presented when he swapped it over. So what hasn't been verified is the vehicle wiring on the right side.

hripsi

i put left headlight on right side and it works. Today i bought new headlight put with the sam modules but its makes the same thing. Tomorow i will replace modules from the other side again. Because i dont remember does i put them all on the headlight with the problem

w212albania

Did you solve the Problem because i find it interesting that i got excactly the same problem