How to Check 4S Shop Maintenance Records?

Does the OEM three-way catalytic converter have a designated code?

OEM three-way catalytic converters have designated codes. The function of the three-way catalytic converter: As a crucial component in the exhaust gas purification system of gasoline vehicles, it is responsible for the catalytic reduction of harmful gases in the exhaust, such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx). It converts these three main harmful gases into non-toxic and harmless substances: water (H₂O), carbon dioxide (CO₂), nitrogen (N₂), and oxygen (O₂), which are then discharged. The lifespan of the three-way catalytic converter: The condition of the three-way catalytic converter affects the engine's power, idle stability, and fuel consumption. Its service life: domestic standards generally indicate a lifespan of 80,000 to 100,000 kilometers, while international standards typically range from 160,000 to 200,000 kilometers. It is recommended to clean the three-way catalytic converter every 30,000 kilometers. Of course, if any fault symptoms appear, cleaning can be performed in advance.

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What brand are the original tires of the Dongfeng Honda CRV?

Dongfeng Honda CRV's original tires are Michelin's Latitude series SUV tires, model 225/60R18. The following is a detailed introduction to car tires: 1. Inflatable tires are divided into two types according to their structural composition: tubed tires and tubeless tires. Passenger cars generally use tubeless tires. According to the arrangement of the internal cord ply and buffer layer, tires can also be divided into radial tires and bias tires. Radial tires are commonly used in automobiles, and the specifications are marked on the side of the tire. 2. Tires are one of the important components of a car, directly in contact with the road surface. Together with the car's suspension system, they cushion the impact during driving, ensuring good ride comfort and smoothness. They also ensure good adhesion between the wheels and the road surface, improving the car's traction, braking, and off-road capability. Tires bear the weight of the car, and their importance in automobile performance is increasingly recognized.

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How to Check the Condition of Fuel Injectors?

Check the Condition of Fuel Injectors?" /> The methods to check the condition of fuel injectors are: 1. On-vehicle inspection; 2. Testing on the engine; 3. Removal and bench testing. The functions of fuel injectors are: 1. Facilitating complete combustion; 2. Delivering fuel to the engine. The working principle of fuel injectors is: When the electromagnetic coil is energized, it generates magnetic force that lifts the needle valve to open the injection nozzle. Fuel is then sprayed at high speed through the annular gap between the needle valve's tip and the nozzle, forming a fine mist. Common fuel injector faults and solutions include: 1. Nozzle clogging: Use chromium oxide paste on a lapping plate for polishing. Replace the needle valve if its cylindrical surface shows significant wear; 2. Poor sealing: Apply chromium oxide or toothpaste to the sealing surface of the needle valve; 3. Piston wear: Replace the piston; 4. Fuel delivery issues: Inspect and repair the fuel supply pump.

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How Often Should Engine Wiring Harness Protection Be Maintained?

Engine wiring harness protection should be maintained once a year after 3 years of use. Hazards of Engine Wiring Harness Failure: Long-term exposure to high temperatures in the engine compartment can cause the wiring harness surface to crack and peel, exposing wires and leading to electrical leakage. The wiring harness connectors may oxidize and corrode due to moisture and impurities in the engine compartment, or become loose from vibrations, resulting in poor contact. The most severe consequence of wiring harness aging is vehicle self-ignition. Engine Wiring Harness Maintenance: Regular wiring harness maintenance is essential. Wiring harness maintenance typically involves using a wiring harness protector. Its working principle is to form a protective film on the engine wires/battery terminals and harness surface, isolating moisture and preventing oxidation. Since the spray itself has high-voltage resistance and insulation properties, it can also delay the aging and cracking of rubber and plastic pipes in the engine compartment, preventing electrical leakage caused by harness aging. Additionally, the applied protective film is less prone to dust accumulation, making it easy to wipe and maintain engine compartment cleanliness for extended periods.

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How much speeding is allowed in highway section speed measurement?

Highway section speed measurement allows exceeding the prescribed speed limit by 10%. The following are the penalty regulations for section speed measurement: 1. If the speed exceeds the prescribed speed limit by less than 10%, a warning will be issued. 2. On roads with a speed limit below 50 km/h, if the speed exceeds the prescribed speed limit by more than 10% but less than 20%, a fine of 50 yuan will be imposed. 3. If the speed exceeds the prescribed speed limit by more than 20% but less than 50%, a fine of 100 yuan will be imposed; if the speed exceeds the prescribed speed limit by more than 50% but less than 70%, a fine of 300 yuan will be imposed. 4. If the speed exceeds the prescribed speed limit by 70%, a fine of 500 yuan will be imposed. 5. On roads with a speed limit between 50 km/h and 80 km/h, if the speed exceeds the prescribed speed limit by more than 10% but less than 20%, a fine of 100 yuan will be imposed.

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What is the appropriate tire pressure for the front and rear tires of the X-Trail?

The appropriate tire pressure for the front and rear tires of the X-Trail is between 2.2 and 2.5 bar. When the load is light, the tire pressure should be between 2.2 and 2.4 bar, while when fully loaded with passengers, the pressure can reach 2.4 to 2.5 bar. In winter, the tire pressure can be slightly increased, but it is recommended not to exceed 2.8 bar. In summer, the tire pressure should be reduced by 0.1 to 0.2 bar. In terms of body dimensions, the X-Trail measures 4675 mm in length, 1820 mm in width, and 1722 mm in height, with a wheelbase of 2706 mm. For the interior, the X-Trail is equipped with advanced technologies such as a digital 6-disc high-fidelity theater CD plus audio sound system, intelligent remote key system, intelligent voice navigation system, ASCD cruise control system, rearview camera, side-view system, multimedia entertainment system, anti-glare interior rearview mirror, external temperature display, and intermittent multi-level adjustable front wipers.

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How to Check 4S Shop Maintenance Records?

Does the OEM three-way catalytic converter have a designated code?

What brand are the original tires of the Dongfeng Honda CRV?

How to Check the Condition of Fuel Injectors?

How Often Should Engine Wiring Harness Protection Be Maintained?

How much speeding is allowed in highway section speed measurement?

What is the appropriate tire pressure for the front and rear tires of the X-Trail?

What does it mean when the rear car flashes high and low beams alternately?

How many points are deducted for crossing a yellow line?

Why is there no sound in the Land Rover navigation system?

What are other motor vehicles besides motorcycles?