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What are the reasons why the Passat's auto start-stop is not working?

1 Answers

DeRiver

07/30/25 8:48am

Possible reasons why the Passat's auto start-stop is not working are as follows: Accidental system deactivation: Generally, vehicles equipped with auto start-stop functionality have the system enabled by default. If it suddenly stops working, it might be due to accidentally pressing the auto start-stop button on the car, leading to system deactivation. Check if the system has been turned off. Specific conditions preventing activation: The function will not activate under the following conditions: the engine has not reached normal operating temperature, the automatic air conditioning has not reached the preset temperature, the battery charge is insufficient, steering wheel is turned after stopping, the vehicle is in emergency braking, or reversing. Auto start-stop system malfunction: This could be due to wiring issues or other reasons causing the start-stop system to fail. In such cases, it's best to have the vehicle inspected at an authorized 4S service center.

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What is the distance for hill start?

During a hill start, if the distance from the edge line exceeds 50 centimeters, 20 points will be deducted, with a passing score of 90. This means if the vehicle is more than 20 centimeters from the edge line during the hill start, it is considered a test failure, requiring a retake. If the retake also fails, the course must be retaken. Below are the deduction standards: 1. If the vehicle's bumper is not aligned with the pole line and exceeds 50 centimeters front or back, the test is failed; 2. If the vehicle rolls back more than 30 centimeters during start, the test is failed; 3. If the vehicle's bumper is not aligned with the pole line but does not exceed 50 centimeters front or back, 20 points are deducted; 4. If the vehicle stops without being close to the edge and is not within 30 centimeters of the right edge line, 20 points are deducted; 5. If the vehicle rolls back less than 30 centimeters during start, 20 points are deducted.

Will a broken rear light cover causing water ingress have any impact?

If the rear tail light housing of a car is damaged, it generally only affects the appearance. Minor exposure to rain usually won't cause issues, but prolonged exposure may lead to damage to the tail light bulb or socket, rendering the light inoperative and affecting the vehicle's annual inspection. The following are the methods to deal with water ingress in car tail lights: 1. Minor water ingress: After turning on the lights for a while, the moisture will evaporate with the heat through the vent tube, without damaging the tail light or electrical circuits. 2. Severe water ingress: If discovered, it's advisable to visit a 4S shop for disassembly and repair as soon as possible; alternatively, you can remove it yourself, let it dry, and then check the tail light surface for any cracks or potential water leakage points.

What are the differences between joint venture cars and domestic cars?

Joint venture cars and domestic cars differ in the following aspects: 1. Brand influence: Joint venture cars generally involve foreign automakers providing technology while domestic automakers supply labor. As a result, joint venture cars offer more reliable technology compared to domestic cars. Additionally, the level of brand influence directly affects the car's resale value, with domestic cars typically having much lower resale rates. 2. Car models: Domestic cars leverage their local advantages to better understand consumer needs, offering greater advantages in terms of space, features, and pricing—simply put, they provide higher cost-performance. However, in the luxury car segment, domestic brands still lag behind joint venture brands.

What are the penalties for driving with the trunk open?

Driving with the trunk open violates the "Regulations for the Implementation of the Road Traffic Safety Law." If the doors or compartments are not properly closed while driving, a fine may be imposed. However, electronic police cameras will not capture this violation. If traffic police notice and stop the vehicle, a ticket will be issued. Several scenarios of driving with the trunk open: 1. Forgetting to close or unable to close: If discovered by police, the driver may receive a warning or fine but no points deduction. 2. Carrying passengers in the trunk: Some medium and large SUVs have trunk space that can easily accommodate two or three people, leading to situations where the trunk is used when seats are insufficient. Aside from safety concerns, if caught by traffic police, this not only results in a fine but also points deduction.

Does Crystal Coating Require Polishing?

Crystal coating requires polishing. Here are the relevant details: 1. Crystal Coating: Crystal coating is a specialized hard protective layer used for key areas of a car such as the paint surface, glass, tires, rims, seats, engine, interior, and exterior trim. The materials used in crystal coating are mainly divided into three categories: polysiloxane, polysilazane, and inorganic silicon. 2. Polishing: Polishing refers to a processing method that utilizes mechanical, chemical, or electrochemical actions to reduce the surface roughness of a workpiece, thereby achieving a bright and smooth surface. It involves the use of polishing tools, abrasive particles, or other polishing media to refine the surface of the workpiece.

What is the difference between power and horsepower?

Power and horsepower mainly differ in meaning. Power refers to the comprehensive index of a car, while horsepower primarily indicates the engine's capability. Here are the relevant details: 1. Power performance: Automotive power performance refers to the average driving speed a car can achieve on a good road under the influence of longitudinal external forces, which is one of the fundamental performances of a car. The resistances encountered during driving include rolling resistance, air resistance, gradient resistance, and acceleration resistance. 2. Horsepower: Horsepower is a commonly used unit of measurement for power in engineering. 1 horsepower equals the work done to lift 75 kilogram-force·meters in 1 second, also equivalent to 0.735 kilowatts, or known as metric horsepower.

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