What is the braking distance of a car?

What are the causes of ABS failure?

ABS warning light may illuminate in various states, with different causes and solutions for each state, as detailed below: State 1: ABS warning light stays on continuously (most common). Cause 1: The ABS wheel speed sensor's sensing area is covered by dirt, mud, or other contaminants, affecting its ability to detect the corresponding speed signal. This prevents the ABS control unit from determining the vehicle speed and calculating the wheel slip ratio, thus failing to issue appropriate commands to regulate braking. Solution: Clean the dirt from the wheel speed sensor and adjust the gap between the sensor and the tone ring to restore normal function. Cause 2: Poor signal transmission due to loose connections between system wiring or poor contact in ABS relays, leading to system failure. Solution: Inspect wiring connections and reconnect any loose parts. State 2: ABS warning light illuminates intermittently, turning off during acceleration. Cause: When multiple vehicle electrical devices are in use, battery voltage drops below 10.5V. As engine speed increases, voltage rises, and the ABS indicator turns off. This may also occur if the ABS system power supply voltage is too low, such as due to poor terminal contact or grounding issues. Solution: Check battery specific gravity; inspect the charging system; examine the power supply (e.g., voltage relays or poor power contacts). State 3: ABS warning light remains on after engine start until engine IGFF turns it off. Cause: Poor grounding contact in the ABS hydraulic valve body; poor electrical connector contact in the ABS hydraulic valve body; ABS control unit failure. Solution: Loosen and retighten the hydraulic valve body ground screw, cleaning the contact surface if necessary; check for enlarged connector gaps; replace the ABS or ABS/ASR control unit. State 4: ABS warning light illuminates during high-speed driving. Cause: During high-speed driving, the ABS control unit detects a significant discrepancy between rear and front wheel speed signals; incorrect tire or wheel rim specifications. Solution: Refer to the vehicle's tire and wheel rim specifications, as indicated on the fuel tank cap label. State 5: ABS warning light illuminates intermittently. Cause: Improper adjustment of the brake light switch; poor internal contact in the brake light. Solution: With the engine running, depress the brake pedal, manually push the brake switch linkage down fully, then release the brake pedal to complete self-positioning; replace the brake light switch if necessary. If the ABS warning light is on, 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, preventing the driver from decelerating or adjusting the vehicle's trajectory, posing significant safety risks.

16

2

Share

Can Mainland Vehicles Cross the Hong Kong-Zhuhai-Macao Bridge?

Mainland vehicles can cross the Hong Kong-Zhuhai-Macao Bridge. Below is a detailed analysis of the types of mainland vehicles allowed on the bridge: Permitted vehicles include: Cross-border buses, shuttle buses, cross-border taxis, freight vehicles, tourist buses, sightseeing buses, sightseeing vehicles, and cross-border private cars. Additionally, non-cross-border private cars (without dual license plates) holding a one-time quota permit are also allowed to use the bridge. For information on one-time quotas, visit the Government Services Website of the Traffic Management Bureau of the Guangdong Provincial Public Security Department. Vehicles prohibited from using the bridge: Pedestrians, non-motorized vehicles, tractors, wheeled special-purpose mechanical vehicles, articulated buses, full-trailer trucks, and other motor vehicles with a designed maximum speed below 70 kilometers per hour are not permitted on the Hong Kong-Zhuhai-Macao Bridge. Vehicles transporting dangerous goods are also prohibited. Dangerous goods include those classified as hazardous under the laws and regulations of Mainland China, Hong Kong, and Macao. Motorcycles are not allowed on the bridge.

14

2

Share

What are the conditions for Yadea's lost vehicle compensation?

Yadea's lost vehicle compensation conditions are valid within the warranty period. The following is a detailed introduction to the materials required for applying for Yadea's lost vehicle compensation: Provide a police report (or incident report) from the local public security authority at the place of the incident: The report must indicate the brand, model name, and frame number of the stolen vehicle. Purchase invoice or sales receipt of the electric bicycle. A full set of original vehicle keys (the number of keys should be noted as per the manufacturer's price list). Copy of the insured's ID card: For insured individuals under 16 years old, a copy of the household register is additionally required, and the compensation procedures and receipt of compensation must be handled by their legal guardian. Claim application form.

10

4

Share

How often should the differential oil be changed for the Q5?

The differential oil for the Q5 should be changed every 3 years or 60,000 kilometers. Replacing the differential oil helps prevent excessive wear of the vehicle's differential gears, which could lead to differential damage. Without sufficient lubrication and cooling, the differential can cause difficulties during vehicle operation. The functions of differential oil include: Protection: Differential oil is specifically developed to lubricate the rear differential of rear-wheel-drive vehicles, effectively providing protection. During high-load continuous driving, the temperature of the gear oil in the transmission and differential can sometimes exceed 120°C. Under such high temperatures, the lubricating performance of the differential oil decreases, leading to deterioration of the gear oil. Excellent Thermal Stability: Increased friction among the gears in the differential structure can raise the vehicle's fuel consumption and, over time, damage components like the differential and differential lock. Besides lubrication, anti-wear, and cooling functions, differential oil also offers better thermal stability compared to engine oil.

11

4

Share

How long after failing the driving test (Subject 3) can you retake it?

You can retake the Subject 3 driving test ten days after failing it. Additional information is as follows: Subject 3 test content: Vehicle preparation, simulated lighting test, starting, driving in a straight line, gear shifting operations, changing lanes, pulling over, driving straight through intersections, turning left at intersections, turning right at intersections, passing pedestrian crossings, passing school zones, passing bus stops, meeting oncoming vehicles, overtaking, making U-turns, and nighttime driving. Safe and civilized driving knowledge test content: Requirements for safe and civilized driving operations, safe driving knowledge under adverse weather and complex road conditions, emergency handling methods for situations such as tire blowouts, and post-accident handling knowledge.

16

5

Share

Cylinder Bank 1 System Too Lean at Idle

The causes of a lean air-fuel mixture at idle include clogged fuel injectors, excessive air intake/exhaust pipe leaks, and aging or cracked crankcase ventilation valve diaphragms. Additional information is provided below: Key inspection points for lean mixture conditions: Fuel injector spray pattern; Check the electronic control system; Verify if the engine's intake pressure sensor is faulty; Inspect for intake manifold leaks. Effects of poor fuel injection timing and atomization: Engine performance degradation during idle, acceleration or full-load conditions, resulting in reduced power output; Increased fuel consumption; Higher emission levels; In severe cases, may cause complete engine failure.

3

Share

What is the braking distance of a car?

What are the causes of ABS failure?

Can Mainland Vehicles Cross the Hong Kong-Zhuhai-Macao Bridge?

What are the conditions for Yadea's lost vehicle compensation?

How often should the differential oil be changed for the Q5?

How long after failing the driving test (Subject 3) can you retake it?

Cylinder Bank 1 System Too Lean at Idle

What are the causes of starter motor freewheeling?

Should You Pay First or Inspect the Car First When Taking Delivery?

How often should fuel injectors be cleaned?

What is the appropriate tire pressure for the new Sylphy?