Headlamp assembly introduce

Installed on both sides of the car's head, it is used for lighting on nighttime driving roads. There are two lamp systems and four lamp systems. As the lighting effect of the front headlights directly affects the operation and traffic safety of nighttime driving, traffic management departments around the world have established their lighting standards in legal format. Headlight assembly: installed at both ends of the car's head, it is used for lighting when the car is driving at night or on dimly lit roads, There are two forms: a dual headlight system (dual headlights) that combines single high beam and low beam, and a four headlight system (four headlights) that separates single high beam and low beam The headlight assembly also includes a side marker light, which is used for driving at night in the evening to inform other drivers of their position and play a safety role in driving at night. The headlight is installed in the middle of the headlight assembly. Generally, a car's headlight is a light bulb with low and high beam filaments inside, As long as you control the proximity and distance of the light switch wiring harness, many car headlight assemblies are equipped with automatic light controllers. The beam can be automatically adjusted during passing, ensuring no interference and improving driving safety. Depending on the vehicle model, there are multiple methods for designing the light bulb: 1. If the original car is a xenon headlight assembly, replace the assembly directly. If it is a pure xenon bulb type, the assembly can be omitted. 2. For added ones, There are also assembly style (modified) ones; There are also separate xenon bulbs that are separate from the main components of the headlights. 3. There are separate bulbs, such as those that separate the high and low beams. In addition to the above methods, they can be replaced separately. Except for the simple replacement of the original assembly parts, for general individual replacement bulbs (xenon bulbs), it is important to note that the relevant power is equivalent. If it is too large, the corresponding current increases and the heat increases, causing the lamp to age too quickly. The lamp head may also be "melted", At the same time, it brings an additional power burden to the car's generator and battery. Specific operation: Replace halogen bulbs with xenon bulbs: There are xenon bulbs on the market that are compatible with various halogen bulbs, such as H4. H7. H1. H3. HB3. HB4. Headlamps that were originally halogen bulbs can be achieved by replacing them with separate xenon bulbs, But such modifications need to pay attention to line safety and related sealing. Precautions: Qualified products must be selected before replacement, and compliance with road traffic regulations is a prerequisite)

The installation method for replacing the headlight assembly is:

The replacement method for the headlight assembly is as follows: 1. Open the engine compartment cover and observe the layout of the components on the back of the front headlights; 2. Unscrew the car lamp cover; 3. Pull off the lamp holder with the power cord with force; 4. Release the lamp holder to remove the car headlight, and then reinstall the new bulb. The car headlight can be replaced by hand, but it is best to take protective measures to prevent touching the bulb and affecting the lifespan of the car headlight. It is not recommended to replace the car headlight by yourself, as improper installation can easily cause the headlight to fall off. Some vehicles require changing the vehicle's wiring and need to go to a professional repair shop for modification

BMW Z4 introduce

The basic structure of the Z4 suspension system comes from the BMW new 3 series, and some structural improvements have been made to make it more dynamic to operate than the previous suspension. The BMW Z4 is a focus coupe under the BMW brand, and its design is improved on the basis of the Z3. The long engine hood and very comfortable seats almost fall on the rear axle are very close to the back. The upward sloping tail of the new car is more attractive, coupled with clear concave and convex lines on both sides, Make the new car look more imposing than the Z3. These eye-catching lines are combined with first-class sports car performance: long wheelbase, short overhang, wide wheelbase, and a relatively low center of gravity