C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

C-Class Lighting Question

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Old Mar 6, 2002 | 06:00 PM
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Question C-Class Lighting Question

Hello C-Classers,

Just a question regarding the front lights on both the coupe and sedan.

How can you tell if a car has the xenon lights, or just the regular lights? (Without the car having to be on. ie. looking at a car in a dealer lot and figuring out if it has the xenons or not)

Does the bulb have a different shape/colour?

Does it say "xenon" somewhere on the casing of the headlights?

If anyone has any pictures to accompany their post, that'd be excellent.

Thanks,

Tim

(Maybe our resident lighting man, Timmy, has some wisdom to share on this.)
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Old Mar 6, 2002 | 06:07 PM
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i dont think you can tell JUST by looking at the car. Correct me if I'm wrong!
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Old Mar 6, 2002 | 06:35 PM
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If you are talking about OEM lighting, the bulb type is embossed on the headlight lens/cover. The coupe, of course, does not have HID's.

If you mean aftermarket conversions, the only way to tell is when the lights are on.
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Old Mar 6, 2002 | 07:14 PM
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So, if I look closely at the headlights, it should read "Xenon" on it somewhere?

Thanks,

Tim
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Old Mar 6, 2002 | 07:15 PM
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On euro-speced cars you can see it from inside the car. Cars without xenon has a small adjustement wheel to the right of the light switch for adjusting the level of the lights, while xenon equipped car don't have this because of it's auto-leveling feature.
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Old Mar 6, 2002 | 08:09 PM
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I have a 2001 C320 with Xenon light, I cannot tell just from the outside. But for 2002 model, xenon light can only be ordered with the C4 package which includes Headlamp Washer and Heated Seats.
So when you look at 2002 model, look for the heated seats button or headlamp washer button, those are the cars which might have xenon light.
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Old Mar 6, 2002 | 08:16 PM
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Oh, you are brilliant!

I should've thought of that. I know that you need the washers in order to have the xenons. But, for some reason, it didn't connect.

It must be all that red wine I had.

I'm a moron!

Thanks very much!

Tim
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Old Mar 6, 2002 | 08:39 PM
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Originally posted by timorgan
So, if I look closely at the headlights, it should read "Xenon" on it somewhere?

Thanks,

Tim
On the C coupe, and I presume the sedan, the markings are on the bottom of the high beam potion of the lens. There are several line of writing relating to aiming and various standards the lamp is approved under. The bottom line on the coupe reads "VOL H7". Halogen bulbs will always be HB# or H#, dpending on the bulb type. HID's will be D1, D2, D2s, D2R, or 9500.

These marking are required by the DOT and are on all newer cars.

http://lighting.mbz.org/faq/#replacable
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Old Mar 6, 2002 | 08:42 PM
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you can order washers...

without ordering xenons however if you have the xenons, it is correct that you need to order the washers. Could fool you though. I would like to know what to look for on the lens that tells that they are actual HIDs.
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Old Mar 6, 2002 | 09:37 PM
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I just went out to my garage to try to read the numbers on the lenses of my Xenons. Even w/ a flashlight, it was hard to see w/ the glare. I'll check them tomorrow.

But, w/ the Xenons, you get a motorized self-leveling system. If you look through the outer lens of the Xenons, you can see an inner "pod" which actually contains the lights. It's the same shape as the outer lens, but has a silver ring around it. When parked, you can see a separation between the lower inside edge of the outer lens and the surface of the "pod", and the silver ring inside. This is because the inner pod is pivoted downward somewhat. If you look at one you'll see what I mean. I think it might actually be easier to glance inside the lens for the separation than it is to decipher the codes imprinted on the outer lens cover.

Also, as someone said, a lot of people probably get C4 without the Xenons, so that's not a reliable determinant.
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Old Mar 7, 2002 | 12:27 AM
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Lynn is correct, there are numbers on the bottom of the lens. Actually there are 2 sets of numbers, one is below the high beam portion and the other is below the low bean portion.
I have a 2001 C320 with Xenon. I cleary read "D2R" on the bottom on the lens (low beam portion on both sides). I believe it is the most accurate method to determine the car has OEM Xenon or not.
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Old Mar 7, 2002 | 09:15 AM
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Originally posted by atsang311
I have a 2001 C320 with Xenon. I cleary read "D2R" on the bottom on the lens (low beam portion on both sides). I believe it is the most accurate method to determine the car has OEM Xenon or not.
You're right. This morning, I was able to read the numbers and there is "D2R" at the very bottom of the low beam section.
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Old Mar 7, 2002 | 11:08 AM
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Linking MarkL's separate question to me regarding comps between housings of xenon and non-xenons... In short, the housings behind the lenses appear to be the same.

https://mbworld.org/forums/showthrea...ighlight=MBBOB
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Old Mar 7, 2002 | 01:38 PM
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Thumbs up

Thanks for all of your help, guys!

Tim
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