Xenon and LED headlights for my car
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Replace a Spare part Headlights – a defective one or if the limit of use has been already reached. Find out useful information about Headlights
Headlight faults- depressurization;
- internal contamination;
- blown bulb;
- rust on the inner components;
- oxidation or wiring closing;
- failure of the fasteners;
- incorrect operation of the internal reflector;
- cracks, chips, scratches and abrasions on the housing;
- fading and flickering light;
- wear of the light components.
- disrupted light transmission;
- light does not respond to switching on;
- light turns on by itself;
- headlight mists up;
- the part housing is visibly damaged.
- mechanical action on the headlight (hitting rocks, gravel, pieces of pavement);
- burning of headlight low beam reflectors;
- the failure of the antidazzle switch, light switch or fuse;
- damage caused by accidents;
- improper installation;
- ingress of moisture into the part;
- frequent driving on poor quality roads;
- excess lifetime of the light or some of its elements;
- wiring fault;
- battery discharge.
You can identify the headlights malfunction on your own, in most cases without removing the part. First of all, check the housing. In the absence of external defects remove the headlight glass, pull out the lamp and check if the filament is burned. If this happens, replace the lamp.
Next, you must make sure that the current flows through the cartridge contacts. For this purpose, connect a test lamp. If it does not light up, attach the end of the lamp wire to the socket adapter terminal. If the lamp lights up now, the wire is defective that connects the socket contact and the adapter.
Repair of headlightsRepairs depend on the localization of damage. To eliminate cracks and chips on the housing you will need a special hot air soldering station. Broken areas are stuck together if possible. If the light has decreased light transmission due to the large number of scratches and scuffs, the part is polished. In the case of the part tightness break we recommend to seek professional help, in this case repairs will require special knowledge and equipment.
Replacement of headlightsIf the light is severely damaged, its replacement cannot be avoided. To install a new part you will need:
- remove the grille that will provide unhindered access to the headlight;
- unscrew the light mounting bolts from both sides;
- carefully remove the faulty spare part;
- remove the light from the bracket and disconnect the wires from the bulb;
- install a new lamp, follow the steps in reverse order.
FAQ: Frequently asked questions
The sequence of steps can vary depending on the design of the vehicle. Usually, however, to replace the headlights it is necessary to:
- Turn off the engine and let it cool down with the bonnet open.
- Disconnect the negative battery terminal.
- Access the components. This may require removing the bumper, radiator grille, and other elements.
- Disconnect the electrical connector of the headlight and treat it with an electrical contact cleaner spray.
- Unscrew all bolts and carefully take the headlamp out.
- Remove the protective cover from its back side.
- Disconnect the connectors and retainers of the bulb to remove it from the old headlamp. Install the bulb to the new headlamp, avoiding touching the glass with your bare hands, and reconnect the connectors.
- Install the reassembled headlamp unit and check that it is connected correctly.
- Refit all the parts in reverse order.
- Check the headlight beam pattern and adjust it.
Replacing a fog lamp often requires the wheel and wheel arch cover to be removed. That is why this procedure should only be performed if you have the suitable tools, a car lifting device, and appropriate experience working with electrics.
Before starting any work, check the recommended procedures in your vehicle owner’s manual. Typically, you will need to remove the headlamp cluster, having loosened its bolts and disconnected the electric connectors in the back of the unit. The protective cover must then be removed. Detach the bulb from its socket and carefully replace it with a new one. Take into account that you shouldn’t touch the surface of the bulb with your bare hands (use gloves), as oily stains can cause damage to the bulb. Reassemble the headlamp by repeating the steps in reverse order.
On some vehicles, bulbs can be replaced without removing the whole headlight. In this case, however, you may need to remove the engine control unit, battery, coolant tank, and other components. Replacing a fog light bulb requires the front wheel, engine splash guard, and wheel arch cover to be removed.
You can visit a garage and experts can adjust your headlights using specialised equipment. However, in most cases you can perform this work by yourself. For this, ensure the vehicle is on even ground with the front of the car as close as possible to a vertical surface. Using coloured masking tape, mark the centre of each of the dipped headlights on the wall and draw vertical lines through them. After having checked your vehicle owner’s manual, mark points 6–12 cm lower than the previous markings and connect them with a horizontal line. Drive backwards for about 5–10 metres. If the headlights are adjusted properly, the upper boundary of the light spot will match the horizontal line on the wall and the light beam will be angled upwards from the intersection points of the lines. For cars with separate bulbs for high and low beams, the high beams should be adjusted in a similar way.