In which year was the BMW X4 produced?

What are the exterior dimensions of the BMW 3 Series?

BMW 3 Series body dimensions are 4829mm in length, 1827mm in width, and 1463mm in height, with a wheelbase of 2961mm. Exterior Design: The front face of the BMW 3 Series still features the signature kidney grille, a distinctive hallmark of BMW vehicles. The current model's grille appears larger, and the body lines have evolved towards a more sporty direction. The front grille is adorned with chrome trim, and the headlights adopt an open-eye design, further accentuating the car's sporty character. High-Tech Features: The new 3 Series incorporates numerous high-tech features. The headlights utilize full LED lighting, equipped with laser high beams and adaptive cornering functions, delivering a completely new experience during use.

1

0

Share

Which is Better: Internal or External Tire Pressure Monitoring?

From the perspective of safety and stability, internal ones are better. External tire pressure monitoring devices are easy to install, but their sensors are exposed to the outside environment year-round, facing more complex challenges, making them prone to being dislodged or stolen. Therefore, for car owners who frequently drive long distances, an internal tire pressure monitoring product is more suitable. TPMS (Tire Pressure Monitoring System) is divided into three types: direct, indirect, and hybrid. Below is an introduction to these three types: 1. Direct TPMS: Uses pressure sensors fixed in each wheel to directly measure the tire pressure. It employs a wireless transmitter to send pressure information from inside the tire to a central receiver module, which then monitors the tire pressure data for each tire. When the tire pressure is too low or there is a leak, the system automatically alerts the driver, who can then check the digital tire pressure readings for each wheel to see if there is any abnormality. 2. Indirect TPMS: Works in conjunction with the vehicle's Anti-lock Braking System (ABS). Its working principle is that when the pressure in a tire decreases, the vehicle's weight causes the rolling radius of that wheel to become smaller, leading to a faster rotation speed compared to other wheels. By comparing the speed differences between the tires, it achieves the effect of monitoring tire pressure. Its drawback is that it cannot indicate specifically which tire is in a high or low-pressure state, thus having certain limitations. 3. Hybrid TPMS: Requires the installation of two additional tire pressure sensors and a radio frequency receiver in the system, enabling it to monitor the status of each tire. However, it still lacks in terms of system reliability and flexibility, and it does not meet or is not suitable for the aftermarket.

11

1

Share

What does it mean when the passenger light on the car is on?

If the passenger light on the car remains illuminated after starting the vehicle or during use, it indicates a fault in the airbag system. A diagnostic tool is required to extract the fault code for repair. When the SRS light is on, the airbag system is deactivated. If the vehicle is under warranty, it is advisable to visit a 4S dealership as this issue is typically covered under warranty. Below is an introduction to airbags: 1. The airbag system mainly consists of four components: collision sensors, the airbag control unit, the system indicator light, and the airbag module. The airbag module primarily includes the airbag, the gas generator, and the igniter. 2. The working principle of the airbag system (taking the driver's airbag as an example): When a frontal collision occurs, the airbag control system detects the impact force (vehicle deceleration) through the collision sensor. If the force exceeds the set threshold, the airbag control unit immediately activates the electric detonator in the inflator assembly. This ignites the ignition medium inside the detonator, which then ignites the ignition powder and gas generant, producing a large volume of gas. The airbag inflates within 0.03 seconds, rapidly expanding and breaking through the steering wheel's decorative cover to deploy towards the driver. This cushions the driver's head and chest against the inflated airbag, absorbing the impact. Subsequently, the gas in the airbag is released.

7

4

Share

What is the normal tire pressure for the Buick Excelle?

The normal tire pressure range for the Excelle is 2.4-2.5 bar. Due to seasonal factors, the tire pressure can be appropriately increased by 0.2 bar in winter and decreased by 0.1 bar in summer. This data is based on the international GBT2978-2008 standard requirements. The Excelle's tire pressure monitoring system is indirect, utilizing the vehicle's ABS balance control, and only displays low pressure when there is a leak. To check the tire pressure, first prepare a tire pressure gauge, locate the original tire pressure label, press the gauge onto the tire valve to measure and read the pressure, and remember to replace the valve cap after measurement. Generally, a tire pressure above 2.8 bar is considered too high, while a pressure below 2.0 bar is too low. Hazards of overinflated tires: Reduced tire friction and adhesion, affecting braking performance; causes steering wheel vibration and deviation, reducing driving comfort; accelerates wear on the central tread pattern, shortening tire lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components; overstretches the tire cords, reducing elasticity and increasing the load on the vehicle during driving. Hazards of underinflated tires: Increased friction coefficient with the road surface, leading to higher fuel consumption; makes the steering wheel heavy and prone to deviation, compromising driving safety; increases movement of tire components, causing abnormal heat due to excessive rolling; reduces the functionality of cords and rubber, leading to delamination or cord breakage and excessive friction with the rim, damaging the tire bead and causing abnormal wear; multiplies friction with the ground, rapidly increasing tire temperature, softening the tire, and drastically reducing strength. High-speed driving may lead to tire blowouts. If the tire pressure monitoring indicator light illuminates (a yellow symbol with an irregular circle, no stamp above, four small spikes below, and an exclamation mark inside), there are generally three possible reasons: Abnormal tire pressure: Typically, it will alert if pressure is below 1.8 bar or above 3.0 bar. In this case, tire inspection and pressure adjustment are required. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure is not reset promptly, the system will still record the previous data, causing the indicator light to remain on. Simply reset the tire pressure to resolve this. Damaged tire pressure sensor: The tire pressure sensor, installed inside the tire and connected to the inflation valve, monitors tire pressure. If the sensor is damaged due to impact while driving, the tire pressure warning light will illuminate. A damaged sensor must be replaced with a new one.

19

0

Share

Does the Audi RS5 have keyless entry?

Audi RS5 does not come with factory-installed keyless entry, but it can be optionally installed. Keyless Start System: This system allows starting the vehicle without physically turning a key. Simply keep the key in a bag or pocket, press the in-car button or turn the ignition knob to start the engine. The well-known one-button start is a derivative function of this system. Keyless Entry System: The keyless entry system refers to an intelligent system that utilizes advanced RFID wireless radio frequency technology and identity code recognition. It eliminates the need for traditional mechanical keys to unlock the vehicle doors or start the engine. Instead, it only requires a key equipped with a smart chip to sense and operate the vehicle.

7

3

Share

What are the triggering conditions for the Song Pro's automatic emergency braking?

The Song Pro's automatic emergency braking is activated when the ACC (Adaptive Cruise Control) is turned on, as the ACC has a higher priority level, making it easier to trigger this automatic braking function. No manual intervention required: The Song Pro's automatic emergency braking operates independently and generally does not require manual intervention. During normal driving without adaptive cruise control, the system automatically applies braking force to slow the vehicle down in case of sudden hazardous situations. Ideal for congested urban areas: This driver assistance technology is particularly suitable for large, congested cities. During urban driving, prolonged traffic congestion can lead to driver distraction. This automotive feature helps prevent rear-end collisions and unnecessary incidents, as the automatic emergency braking technology actively reduces speed to minimize damage.

2

Share

In which year was the BMW X4 produced?

What are the exterior dimensions of the BMW 3 Series?

Which is Better: Internal or External Tire Pressure Monitoring?

What does it mean when the passenger light on the car is on?

What is the normal tire pressure for the Buick Excelle?

Does the Audi RS5 have keyless entry?

What are the triggering conditions for the Song Pro's automatic emergency braking?

How to Replace the Headlight Bulb of Volkswagen Bora?

What engine does the BAIC Changhe Q7 use?

What to Do If the Car Won't Start After Sitting for Too Long?

How to Reset the Maintenance Reminder on a Skoda?