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The structure of such items as car headlights are not as easy as it seems. The components of this element are: housing, reflector, dispersing glass, rim, current supply wiring, lamp holder and lamp. The optical element, connected to the rim by the spring clips, is formed by the diffusing glass, the reflector and the lamp. As for the rim, it is attached to the body with a connecting screw. Apart from that, the optical element is fixed by springs and adjusting screws on the main body of the lamp. The function of the reflector consists in directing the light beam and reflecting light. The inner surface of this part is polished and covered with varnish, a thin layer of aluminum or chromium. The dispersing glass is necessary in order to reduce the blinding effect of the light beam. It has a convex shape on the outside, and its inner side is covered with light-refracting protrusions.

The protrusions are arranged so, that the light spot, which is formed as a result of the elements` functioning, takes the form of an ellipse and is led downwards. Apart from that, for convenience and correct installation there is a sign “Top” on the surface of the glass. The reflector is equipped with a lamp holder with three angular cut-outs needed to fit-in the protrusions of the carbolite cover, which is provided with an opening for the current supply wiring. There are two ways to adjust the light (technically - light beam): with a screw, which changes the position of the optical element, or with a spherical joint, which also turns the headlights.

Of course, the source of light in all of these elements is a light bulb that has a metal base, contacts, a glass bulb and a tungsten filament. For example, it is quite simple to replace the bulb on the headlight and it does not take an expert to do that. Even if the headlight on your car broke down because of an accident or unfortunate parking attempt, do not worry! In our online store you can acquire a new lamp, as well as a bumper or a radiator grid, at affordable prices, and any mechanic will easily and quickly replace it.

All you should know about headlights replacement: lifetime limits, common defects and their signs, tips and recommendations

Service life of headlights is not strictly limited. If malfunction signs appear, the components are to be replaced.

Typically, headlights lose operability due to bulbs lifetime ending. Also, problems with power supply are possible – damaging of wires and loosening of their connection, contacts oxidation.

As a rule, at such defects headlights become dim, blink and operate in one mode only (low beam or high beam) or do not turn on at all.

For component diagnostics, firstly, you should plug a working light bulb in the power socket of the headlight. If it lights up, than malfunction was caused by blown-out bulb. If the working light bulb does not respond, than headlight power supply circuit is broken. In this case, you should check the headlight relay and fuses first of all.

For component replacement you need to disconnect the negative terminal from the battery, demount the bumper and disconnect wires that supply power to the headlight. Then unscrew fasteners, release the headlight clip and detach it from the bracket. Then remove the defective component and install a new one. If only a bulb needs to be replaced, still you should disconnect the negative terminal from the battery, remove the headlight cap, remove rubber sealing ring and unplug wiring harness from the bulb. Then, press and  pull aside the spring clip of the bulb, and remove the defective part. Install a new bulb into the reflector and fasten it with the spring clip, assemble all parts in the reverse order.

Do not touch a bulb without clean gloves, as oily stains on the bulb envelope cause its darkening at heating. It is advisable to replace the rubber sealing ring of the headlight cap together with a bulb.