What Type of Transmission Fluid Should Be Used?

What does the autohold light indicate?

The AUTOHOLD in a car refers to the automatic parking function. When the automatic parking function light is on, it enables the driver to avoid unnecessary vehicle coasting without the need for prolonged braking or engaging the electronic parking brake. 1. Related functions: The AUTO-HOLD automatic parking function can automatically activate the four-wheel braking when the vehicle is stopped at a traffic light or on a slope. Even in D or N gear, there is no need to keep the foot on the brake or use the handbrake, as the vehicle remains stationary. To release the stationary state, simply lightly press the accelerator to disengage the brake. 2. Working principle: AUTO-HOLD is an extension function of ESP and is controlled by ESP components. When the vehicle is temporarily parked and needs to be restarted shortly after, the parking in this situation is handled by the ESP-controlled brakes. The computer uses a series of sensors to measure the vehicle's level and wheel torque, determines the tendency of the vehicle to move, and applies an appropriate braking force to the wheels to keep the vehicle stationary.

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What is the Difference Between 6-Speed Dual Clutch and 7-Speed Dual Clutch?

The biggest difference lies in the cooling method of the dual clutch friction plates: DSG6 is a wet clutch, while DSG7 is a dry clutch. The DSG7 dual clutch has a simpler structure, making it more economical. Compared to the slightly more complex DSG6, it has a higher failure rate. On the other hand, the DSG6 delivers more powerful performance. 1. 7-Speed Dual Clutch: This transmission involves three clutch plates working together—one in the middle and one on each side. One side clutch plate works in conjunction with the middle one to handle gears 1, 3, 5, and 7, while the other side clutch plate works with the middle one to handle gears 2, 4, 6, and R. When first gear is engaged, the shift to second gear has already begun, and so on. The dual clutch transmission eliminates the need to depress the clutch, resulting in faster shift times compared to a manual transmission. 2. 6-Speed Dual Clutch: This transmission involves two clutches working together, each with multiple clutch plates. One clutch controls gears 1, 3, and 5, while the other controls gears 2, 4, and R. The shifting principle is the same as that of the 7-speed transmission.

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Should the Clutch Be Fully Depressed When Braking?

When braking, the clutch should not be fully depressed. The clutch only needs to be fully depressed when coming to a complete stop or shifting gears. However, when braking to a very low speed, the clutch should be pressed to the semi-engaged position to prevent the vehicle from stalling, without needing to fully depress the clutch. The clutch should be depressed during emergency braking: When performing emergency braking, if the clutch is not engaged, the engine's speed will drop sharply due to its rigid connection with the drivetrain. This can generate significant inertial torque in all moving parts, potentially exceeding the maximum torque produced during normal engine operation. Such excessive load on the drivetrain may cause damage to the components. The role of the clutch: Depressing the clutch while braking can prevent stalling and avoid the need for restarting, thereby reducing potential damage to the vehicle. Engaging the clutch is equivalent to shifting into neutral, and braking in this state increases the braking distance, thereby increasing driving hazards.

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What are the causes of brake hose rupture?

Here are the specific reasons for brake hose rupture: Diesel engine high-pressure fuel line breakage: First, check if the fuel injector is stuck in the closed position. If the injector is stuck while the engine is running and the plunger continues to inject fuel, the high-pressure fuel line has limited pressure-bearing capacity. Prolonged exposure to this pressure can cause the high-pressure fuel line to rupture. Poor unloading of the delivery valve: If the delivery valve sealing or unloading is faulty, leading to excessively high residual pressure or cavitation in the high-pressure fuel line, it can cause fatigue damage or cracks in the line. Prolonged engine operation beyond the fatigue strength of the high-pressure fuel line material can result in line breakage. Improper installation: Line breakage is also related to the quality of the fuel line and the assembly method during installation. Particularly during the assembly of high-pressure lines, if stress concentration occurs at the threaded connection, it can easily lead to rupture at the flare fitting.

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What phenomena occur when brake fluid is low?

Insufficient brake fluid can lead to a weak braking response when pressing the brake pedal and may affect braking performance, among other issues. If the decrease in brake fluid is due to normal wear of the brake pads, simply adding some brake fluid to bring the level between the two marked lines on the reservoir is sufficient. Phenomena of weak response: Experiencing a weak response when pressing the brake pedal; Impact on braking performance: This can allow air to enter the brake lines, leading to brake failure. To maintain the vehicle's normal driving performance and braking efficiency, it is essential to regularly replace the brake fluid, ensuring the braking system's performance and the longevity of its components.

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How long can the annual review of a B2 driver's license be delayed?

B2 driver's license annual review can be supplemented within three years after its expiration. If the review is not conducted for more than three years, a notice will be issued to downgrade the license within 30 days. If no action is taken, the driver's license will be declared invalid. However, driving motor vehicles is not allowed before the review. Therefore, drivers holding a B2 license should complete the annual review as early as possible. Notes related to B2 review: Drivers holding a B2 large truck driver's license should report to the traffic management department of the public security authority for review within 30 days after the end of each scoring cycle. However, if there is no record of demerit points within a scoring cycle, the review for that cycle is exempted. Motor vehicle drivers aged 70 or above should undergo an annual physical examination and submit a health certificate issued by a county-level or military regimental-level medical institution within 30 days after the end of the scoring cycle. Within 90 days before the expiration of the motor vehicle driver's license, an application for renewal should be submitted. When renewing the motor vehicle driver's license, the driver must undergo a review by the traffic management department of the public security authority. If the household registration of a motor vehicle driver is transferred out of the jurisdiction of the original vehicle management office, an application for renewal should be submitted to the vehicle management office of the new location, and a review is also required at this time.

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What Type of Transmission Fluid Should Be Used?

What does the autohold light indicate?

What is the Difference Between 6-Speed Dual Clutch and 7-Speed Dual Clutch?

Should the Clutch Be Fully Depressed When Braking?

What are the causes of brake hose rupture?

What phenomena occur when brake fluid is low?

How long can the annual review of a B2 driver's license be delayed?

Is the engine replaced at a 4S store an original one?

What is the brake pedal called for braking?

What are the Functions and Principles of Brake Fluid?

What Causes the Squeaking Sound When Releasing the Brake?