Xenon headlights

[Bigdrew]

Hi all
I have a bit of a conundrum I have a c class w204 facelift model that I recently bought which has a xenon headlights which appears to have three bulbs one a projector one in the middle and the other a Led but I don’t know what the middle one is for have tried all the switches but to no avail hopefully someone can help thanks ps tried to post a picture of it but couldn’t get it on here

 

[SpikyMikey]

Is your headlight like this?

If so, you have ILS and the bulb that seems to do nothing is a cornering bulb,; it is noticeable at night when you turn the wheel. H7 bulb I think.

 

[Bigdrew]

Is your headlight like this?
View attachment 133604
If so, you have ILS and the bulb that seems to do nothing is a cornering bulb,; it is noticeable at night when you turn the wheel. H7 bulb I think.

Yes the exact same

 

[Bigdrew]

Yes the exact same

Can you also tell me is the xenon bulb a low or high beam as I want to change it thanks

 

[SpikyMikey]

D1S type
Be aware that the passenger side is a bit of a PITA to change due to the washer bottle being in the way.

 

[Bigdrew]

D1S type
Be aware that the passenger side is a bit of a PITA to change due to the washer bottle being in the way.

Thanks Mikey do you happen to know if the D1S is a low or high beam or do these bulbs have both thanks

 

[W1ghty]

Thanks Mikey do you happen to know if the D1S is a low or high beam or do these bulbs have both thanks

If there is a warning for high voltage on the back of the housing it might be a D1s bulb , if it’s an H7 bulb (normal old type) there won’t be a high voltage warning .
Can you not look at the front of the car to see which bulb lights low to high with a helper ?

 

[SpikyMikey]

Thanks Mikey do you happen to know if the D1S is a low or high beam or do these bulbs have both thanks

As far as I know, it's both dip and main (and flash) I've never checked it on mine, but I guess the dip/main works on a shutter system.

 

[Bigdrew]

As far as I know, it's both dip and main (and flash) I've never checked it on mine, but I guess the dip/main works on a shutter system.

Yes mine is the same but what I wanted to know do I buy a low or high beam or do I look for a D1S with both sorry for the questions not clued up on these

 

[DSM10000]

Yes mine is the same but what I wanted to know do I buy a low or high beam or do I look for a D1S with both sorry for the questions not clued up on these

If your car is listed as "Bi Xenon" then the bulb is used for both low and high beam by use of a moving shutter.

You can tell by looking at the bulb on dip usually.

The data card will list the headlamp type.

 

[Bigdrew]

D1S type
Be aware that the passenger side is a bit of a PITA to change due to the washer bottle being in the way.

As you said a PITA tried fitting them today drivers side no problem but just can’t seem to get the passenger one is there a nack to getting this one in

 

[markjay]

If your car is listed as "Bi Xenon" then the bulb is used for both low and high beam by use of a moving shutter.

You can tell by looking at the bulb on dip usually.

The data card will list the headlamp type.

Originally Bi-Xenon headlamps used to also have an H7 Halogen bulb for flashing (HID don't light-up quick enough), though I don't know if this setup was carried over to the W204 facelift.

 

[W1ghty]

As you said a PITA tried fitting them today drivers side no problem but just can’t seem to get the passenger one is there a nack to getting this one in

This is a screenshot from a thread of when I did mine

 

[Corty]

As you said a PITA tried fitting them today drivers side no problem but just can’t seem to get the passenger one is there a nack to getting this one in

I just fitted mine last weekend, the pass side has a bit of a restriction for access but it's still possible to get you hands in there to get the bulb out.

 

[usmaan99]

I have the same headlight but the driver side c shapeLED thing has gone out, do i have to replace the entire headlight or can that be replaced alone?