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

Mercedes Benz B-Class introduce

This Mercedes Benz B-Class is currently the cheapest entry-level car with the Mercedes Benz logo, and it is also the cheapest model in China that is equipped with an active parking assist system. In addition, there is a unique panoramic sunroof structure. Unlike the Mercedes Benz C200, the Mercedes Benz B200 uses a specially designed 2.0L inline four cylinder engine installed in the car with a slight tilt, which not only complements the special chassis structure of the B200, but also, And it can keep the cockpit as far away from the frontal collision area as possible. It is equipped with an AUTO TRONIC continuously variable transmission, also known as a CVT transmission. After being recalibrated by Mercedes Benz, it can output a maximum power of 100 kW and a torque of 185 Nm. In actual testing, the initial response of the electronic throttle is still a bit sluggish, but it is most frequently used in the area of 2500 to 3500 rpm, Having sufficient low torque performance for daily use. After shifting the gear to manual mode, the CVT gearbox with a 7-speed setting immediately enters sport mode, and the switching method is also more convenient. Although it enters sport mode, it is obvious that this car is not born for sport, so the expected value should not be too high, and the sport mode cannot have the expected push back feeling As a compact sports wagon, the Mercedes Benz B-Class has a stylish and dynamic appearance. The large three pointed star emblem on the front face is embedded in the center of the trapezoidal grille, revealing its identity. The lines on the engine compartment cover contract inward, making the headlights on both sides more sharp. The combination of the bumper and front fog lights gives the Mercedes Benz B-Class a powerful appearance