Can a vehicle pass inspection with different tire tread patterns?

Why can't the windshield washer fluid be added to the BMW 3 Series?

BMW 3 Series windshield washer fluid cannot be added because it is internally blocked and needs to be cleaned; or the previously added washer fluid had a higher freezing point, and when entering an area with temperatures below zero, the washer fluid froze. Characteristics of windshield washer fluid: Windshield washer fluid is commonly known as car windshield cleaning fluid and is a consumable for automobiles. It is composed of water, alcohol, ethylene glycol, corrosion inhibitors, and surfactants. When using the wipers to clean the car windshield, the window becomes brighter and cleaner, providing the driver with an excellent driving view. Precautions for windshield washer fluid: There are many details to pay attention to when using car windshield washer fluid. In winter, it is necessary to place the washer fluid inside the car first before adding antifreeze washer fluid. Do not use tap water as a substitute for washer fluid. Tap water contains various impurities. Long-term use of tap water as washer fluid can clog the washer fluid pipes, damage the wiper motor, and cause the wipers to malfunction.

11

5

Share

How to Activate the Left Turn Signal?

There is a turn signal lever below the steering wheel in every car, marked with "right" at the top and "left" at the bottom. Generally, turning the lever upward (clockwise) activates the right turn signal, while turning it downward (counterclockwise) activates the left turn signal. More details are as follows: 1. Due to variations in vehicle models, always refer to the relevant "operating specifications" in your vehicle's "user manual" for accurate instructions; 2. Typically, most vehicles control the turn signals through a combination switch handle integrated with the vehicle's lighting controls, such as moving it upward for the right turn signal or downward for the left turn signal; 3. Some vehicles use a separate control handle or individual switch on the combination switch to operate the turn signals, though this type is less common. As signal lights, turn indicators primarily serve to alert surrounding vehicles about your intended direction change during daily driving, prompting them to yield and avoid collisions. Whether turning, changing lanes, overtaking, starting, or parking, you must activate the turn signal in advance whenever the vehicle needs to steer away from its current lane. This is a fundamental principle of safe driving.

13

4

Share

Is ABS Tire Pressure Monitoring Good?

ABS tire pressure monitoring is referred to as a passive tire pressure monitoring system, which provides significant assistance in driving safety. Understanding of the ABS system can be divided into the following two aspects: 1. How ABS tire pressure monitoring works: ABS tire pressure monitoring compares the rotational speed differences between tires using the wheel speed sensors of the car's ABS system to achieve the purpose of monitoring tire pressure. ABS determines whether a wheel is locked through wheel speed sensors and decides whether to activate the anti-lock braking system. When tire pressure decreases, the vehicle's weight causes the tire diameter to shrink, leading to changes in vehicle speed. These changes can be used to trigger an alarm system to warn the driver. 2. Classification of tire pressure monitoring: Tire pressure monitoring systems can be divided into two types: one is the indirect tire pressure monitoring system, which determines whether a tire is abnormal by the difference in rotational speed between tires; the other is the direct tire pressure monitoring system, which installs four tire pressure monitoring sensors inside the tires to automatically monitor tire pressure and temperature in real-time, whether the car is stationary or moving, and provides timely alerts for high pressure, low pressure, and high temperature in the tires to avoid traffic accidents caused by tire failures, ensuring driving safety.

15

5

Share

What does 'Leave the rest to Quattro' mean?

The meaning of 'Leave the rest to Quattro' is that Audi's Quattro system doesn't require the driver to manually select different four-wheel drive modes like in off-road vehicles, or engage differential locks. You simply drive as you would on normal roads—just press the accelerator or steer (at most switching driving modes). The vehicle's computer will automatically handle traction based on the grip of all four wheels when getting out of tough situations. Definition of Audi: A German luxury automotive brand, symbolized by four interlinked rings. Currently a subsidiary of Volkswagen Group. On December 20, 2018, Audi ranked 51st in the World's 500 Most Influential Brands list. In October 2019, it ranked 42nd in Interbrand's Global Top 100 Brands. Definition of Four-Wheel Drive System: Four-wheel drive refers to a vehicle that maintains all four wheels driven throughout its operation, with engine torque distributed at a fixed ratio between front and rear axles. This drive mode ensures consistent off-road and handling performance but cannot adjust torque distribution based on road conditions and consumes more fuel.

18

0

Share

Why does the xenon headlight of Haval F7 fog up?

Haval F7's xenon headlight fogging is caused by high air humidity, which leads to water vapor in the air condensing inside the headlight. This fogging phenomenon is normal under such conditions. Definition of xenon headlights: Xenon headlights, also known as HID (High-Intensity Discharge) headlights, replace traditional tungsten filaments with high-pressure xenon gas enclosed in a quartz tube, providing higher color temperature and more focused illumination. Xenon lamps use high-voltage current to activate xenon gas, creating an arc of light that continuously discharges between two electrodes. While standard car bulbs typically consume 65 watts, xenon lamps only require 35 watts, reducing power consumption by nearly half. Function of xenon headlights: Xenon headlights significantly reduce the load on a vehicle's electrical system. The color temperature of xenon lamps ranges between 4000K and 6000K, far exceeding that of standard bulbs. With high brightness, xenon lamps offer various light color options, with factory-installed versions usually at 4300K. Due to their color temperature being close to halogen lamps and their strong penetration, they enhance nighttime driving safety.

6

2

Share

Under What Circumstances Should an Engine Be Overhauled?

An engine should be sent for a major overhaul if any one of the following three conditions occurs: severe oil consumption without leakage, severe cylinder wear, or abnormal engine noise. 1. Severe oil consumption with blue smoke but no oil leakage. Blue smoke from oil can indicate two scenarios: one might be aging valve stem seals, which only requires replacing the seals without a major overhaul; the other could be excessive clearance between pistons and cylinder walls, necessitating a major overhaul. These two scenarios can be determined using an endoscope. 2. When cylinder wear reaches the overhaul standard, regardless of other symptoms, the decision to overhaul is based on the extent of cylinder wear. If the cylinder's out-of-roundness reaches 0.125mm per 100mm of bore diameter, or if the cylinder's taper wear reaches 0.40mm per 100mm of bore diameter, a major overhaul should be considered upon meeting either condition. 3. Abnormal engine noise. When abnormal engine noise is detected, it can be measured using an engine noise detector. A major overhaul is required in the following two cases: first, if there is severe wear on the connecting rod bearings (small ends) and the crankshaft; second, if there is a cylinder scoring noise, and disassembly reveals severe scoring on the pistons and cylinder walls.

9

5

Share

Can a vehicle pass inspection with different tire tread patterns?

Why can't the windshield washer fluid be added to the BMW 3 Series?

How to Activate the Left Turn Signal?

Is ABS Tire Pressure Monitoring Good?

What does 'Leave the rest to Quattro' mean?

Why does the xenon headlight of Haval F7 fog up?

Under What Circumstances Should an Engine Be Overhauled?

How to Operate the Engine Start-Stop?

Why does the X-Trail make abnormal noises when shifting to D gear and stepping on the brake?

Why does the Tayron's sunroof open automatically?

Where is the fog light on Borgward?