What to Do When a Sunroof Leak Causes the Horn to Malfunction?

What does ABS mean on a vehicle?

ABS, short for Anti-lock Braking System, functions by automatically controlling the braking force during vehicle braking to prevent wheel lock-up. It maintains the wheels in a state of rolling and sliding (with a slip ratio around 20%) to ensure maximum adhesion between the tires and the road surface. The ABS sensor is located on the inner side of the vehicle's tires and can be seen when the car is lifted. The ABS system primarily consists of four components: wheel speed sensors, the electronic control unit (ECU), the hydraulic unit, and the ABS warning light. The wheel speed sensors detect the motion state of the wheels and generate sinusoidal electronic pulse signals. These signals are then processed by a modulator, converted into digital signals, and transmitted to the electronic control unit. The central electronic control unit (ECU) receives input signals from the wheel speed sensors, calculates parameters such as wheel speed, vehicle speed, and slip ratio, and determines the wheel's condition based on the slip ratio. It then sends control commands to the hydraulic unit. The hydraulic unit adjusts the pressure in the braking lines according to the control commands, with the adjustment process including pressure maintenance, pressure increase, and pressure decrease. The ABS warning light alerts the driver to any system malfunctions. If the ABS warning light is illuminated, it is advisable not to continue driving. An illuminated ABS light indicates a malfunction in the vehicle's anti-lock braking system. During emergency braking, if the wheels lock up, the vehicle may skid uncontrollably, making it difficult for the driver to decelerate or adjust the vehicle's trajectory, posing significant safety risks.

14

5

Share

Which is better, Castrol EDGE or Castrol MAGNATEC?

Previously, the MAGNATEC series of engine oils included both semi-synthetic and fully synthetic oils, but nowadays, the MAGNATEC series, like the EDGE series, is classified as fully synthetic oil. However, overall, the performance of the EDGE series is superior to that of the MAGNATEC series, though it also comes at a higher price. Below are the relevant details: 1. EDGE series: The EDGE series utilizes Titanium Fluid Strength Technology, which alters the physical structure of the oil, causing it to harden under extreme pressure to separate metals and reduce friction. 2. MAGNATEC series: This includes MAGNATEC oil, MAGNATEC Stop-Start oil, and MAGNATEC SUV oil. MAGNATEC oil and MAGNATEC SUV oil employ Dualock technology, where original intelligent molecules and new intelligent molecules tightly bond together to form a robust protective layer on the surfaces of various components, effectively reducing wear during startup and warm-up. MAGNATEC Stop-Start oil is specifically designed for engines in heavy traffic conditions, reducing over 20% of the destructive engine wear caused by stop-start operations. 3. Differences: (1) EDGE series oil is a fully synthetic oil that incorporates titanium, a metal element resistant to low temperatures and corrosion. The liquid titanium formula significantly enhances the oil's low-temperature resistance and anti-corrosion properties while minimizing metal-to-metal friction, thereby reducing power loss due to friction. (2) MAGNATEC series oil is also a fully synthetic oil with a unique formula that allows the oil film to adhere to the surfaces of engine components, reducing wear during cold starts and extending the engine's lifespan.

15

1

Share

Can expired engine oil still be used?

Expired engine oil cannot be used. Engine oil absorbs moisture, undergoes chemical and physical changes, which reduces its lubrication, cooling, sealing, and anti-corrosion properties. Additionally, deteriorated oil can produce impurities that clog oil passages. Deteriorated oil not only fails to provide anti-corrosion protection but also accelerates component oxidation due to the absorbed moisture. Methods for storing opened engine oil: 1. Seal immediately after opening. After maintenance at a 4S shop or repair shop, immediately tighten the oil bottle cap; 2. After sealing the oil bottle, store it in a dry and cool place, ensuring it is not exposed to sunlight to prevent oxidation of the oil inside; 3. When using stored oil for the next maintenance, do not pour all of it into the engine; retain a small portion.

10

4

Share

What Causes the Engine Warning Light to Illuminate When the Engine is Running Normally?

If the engine warning light is on, but there are no abnormal noises in the engine compartment, no other warning prompts on the dashboard, the vehicle's power is unaffected, and the transmission shifts gears normally, you can continue driving to the 4S shop for further diagnosis. Issues such as intake and exhaust systems may trigger the engine warning light, and each case should be analyzed individually. There are two scenarios for the engine warning light: 1. Yellow symbol light: Indicates there is a fault in the engine, but it does not affect normal operation; however, maintenance is required. 2. Red symbol light: Indicates a serious engine fault. Normally, immediate repair is necessary. In special circumstances, you may drive temporarily, but you must continuously monitor the engine's operating condition.

4

3

Share

What does it mean when braking distance is extended or shortened?

Extended braking distance means the distance from when the brakes are applied until the vehicle comes to a complete stop will be longer. Shortened braking distance means the distance from when the brakes are applied until the vehicle comes to a complete stop will be shorter. The length of braking distance is an important factor in determining whether a vehicle's braking system is functioning properly. China's requirements for vehicle braking distance (when unloaded) are: 1. For vehicles with fewer than nine seats: Passenger vehicles with no more than nine seats should have a braking distance not exceeding 19m when the initial speed is 50Km/h. 2. For vehicles with a total mass not exceeding 4.5t: Other vehicles with a total mass not exceeding 4.5t should have a braking distance not exceeding 21m when the initial speed is 50Km/h. 3. For other vehicles: Vehicle combinations should have a braking distance not exceeding 12m when the initial speed is 30Km/h.

6

3

Share

How to Activate the Collision Prevention System in the Levin?

The collision prevention system is automatically activated and does not require manual operation by the driver. Below is additional information about the Levin: 1. Design: The exterior design of the Levin adopts Toyota's latest family design language, featuring a sharper appearance. However, whether it's the sedan body style or the lines used beyond the front section, the design remains mainstream and not overly aggressive. The interior design has also seen significant improvements, with more curvaceous and minimalist aesthetics compared to the straightforward design of the previous model. 2. Powertrain: The all-new Levin offers a pure gasoline version and a hybrid version, equipped with a 1.2T inline four-cylinder engine and a 1.8L hybrid system respectively. Similar to the previous-generation Levin, the new model focuses more on detailed adjustments and optimizations.

13

1

Share

What to Do When a Sunroof Leak Causes the Horn to Malfunction?

What does ABS mean on a vehicle?

Which is better, Castrol EDGE or Castrol MAGNATEC?

Can expired engine oil still be used?

What Causes the Engine Warning Light to Illuminate When the Engine is Running Normally?

What does it mean when braking distance is extended or shortened?

How to Activate the Collision Prevention System in the Levin?

On Which Day Can a Red Light Violation on Sunday Be Checked?

Does turning on the air conditioning immediately after getting in the car affect the vehicle?

How Many Points and Fines for Running a Red Light?

How to Master the Width of the Car While Driving?