Purpose of the liquid in headlight

vigilantty

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The yellow tubes in the head light assembly are to determine headlight level. Some people call them headlight "aimers". You can use these tubes to adjust proper headlight position.
 

IEATVETS

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No No No They are emergency light beacons. If you get stranded at night, you take them out, bend them a little to break the inner seal, shake it really hard and you get 20 minutes worth of light. :D :D
 

George Bryce

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I found two reasons for my liquid filled tubes. In 1999 when I got my new ACR....My wife and my little 3 year old girl were walking around the car, admiring its obvious beauty......my wife says "what are those little yellow liquid thingys" .....my lil 3 year old says "Mom", as she bent over close with her hands behind her back, "those tell you how much headlights you have left!" We laughed so hard we liked to have peed in our pants. :eek:

My answer to all that ask me about the lil yellow thingies....is....they are little mercury switches that cut the ignition when the front end goes higher than 45 degrees!!!!! :eek:
 

Warfang

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My answer to all that ask me about the lil yellow thingies....is....they are little mercury switches that cut the ignition when the front end goes higher than 45 degrees!!!!! :eek:

Around here in San Francisco, we have streets on hills that are more than 45 degrees. Talk about a lame sounding excuse for being late to work.
 

STUGOTS

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I always love it when this topic comes up on the board! ;)


yea but the funny thing is I don't think we ever got to the REAL answer.

**** I still honestly don't know.
 

Ulysses

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Just like the liquid/bubble on a level. Gives you a reference to the horizontal alignment of the headlight. Doesn't mean that one should go and just align to the 0 mark though. Depending on the ride height of your car, that may be too high or too low.
 

Ulysses

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From a distance of, I think 20', on a level surface, the light points of the headlights/fog lights have to be a certain distance from the ground and a certain distance from each other. In the case of the headlight/fog light relationship, the fog lights have to be a certain distance below the headlights. The specs of which are in the service manual, which I do not have in front of me since I am at work. A template is usually drawn with these specs, and hung on a wall. The template center is aligned with the center of the vehicle.
 

Paul Hawker

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The liquid is for reactor cooling on the headlight filaments. If the filament runs too hot, the liquid will bubble up, kind of like old fashioned Christmas tree ornaments.

The secondary function is for crash determination. If you ever plan to purchase a used Viper, look at these liquid filled glass modules. If one or both are empty, it indicated that Viper has been in a front end collision. ;>)
 

Craig 201 MPH

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I always love it when this topic comes up on the board! ;)


yea but the funny thing is I don't think we ever got to the REAL answer.

**** I still honestly don't know.

It's for aiming the headlights


ohh cool. thanks.

but how do you aim them??

With a big hammer!

There are ways to adjust them if you start looking around. I've never done it tho.
 

Roland L-Ocala FL

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No No No! All you guys are wrong, it's to check the oil level in the engine. If the left side tube is down 1 number, then you are short a quart of oil. You can also check to see if you need to change the oil by how dirty the fluid gets in the tube.
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Seriously if you just get the Owner's Manual out and look in the headlight section, it has all kinds of info as to how to aim the headlights with these tubes.
 

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