How many kilometers should a car's gear oil be changed?

Which line to stop at for the fixed-point parking on the slope in Subject 2?

For the fixed-point parking on the slope in Subject 2, stop at the wide white stop line. Below is a related introduction to the content of the Subject 2 driving test: Subject 2 Test Content: Subject 2, also known as the small road test, is part of the motor vehicle driver's license assessment and refers to the field driving skills test. The C1 driving test includes five required items: reversing into a garage, parallel parking, fixed-point parking and starting on a slope, right-angle turns, and curve driving (commonly known as the S-curve). Techniques for Fixed-Point Parking and Starting on a Slope: Use the wiper reference point method—when the wiper's raised point, the parking marker pole, and your line of sight align, apply the brakes. Align the right front corner of the engine hood (1/3 of the way) with the line. Brake promptly and maintain clutch control after stopping. Techniques for Reversing into a Garage: Keep the car 1.5 meters from the side you're reversing into. Drive past the garage, and when the side mirror aligns with the middle of the second garage, turn the steering wheel fully to the right. Once the car body is parallel to the garage, quickly straighten the wheel to complete the maneuver. Techniques for Parallel Parking: Follow the side parking line, using the raised part of the left wiper as a reference. Stop when the door handle is visible in the right side mirror. Shift to reverse, watch the right mirror, and when the garage corner disappears, turn the wheel fully right. When the left mirror aligns with the garage corner, straighten the wheel. As the left rear wheel nears the garage line, quickly turn fully left. When the garage line and car body align in the right mirror, brake. Keep the wheel steady, turn on the left signal, and watch the mirrors. When the first garage corner disappears, turn the wheel right by one and a quarter turns, observing the right mirror's handle. When the rear handle crosses the inner line, straighten the wheel. Watch the right rear tire—when it crosses the ground line, turn fully left. Observe the left small round mirror, and when the left front wheel enters the line, stop quickly. Techniques for Right-Angle Turns: Drive close to the side line without touching it. When the left mirror aligns with the inner corner, quickly turn the wheel fully left. Straighten the wheel once the car is aligned. Techniques for Curve Driving: Control speed with the clutch upon entry, keeping it slow and steady. If the first curve is a left turn, turn the wheel left one full rotation when the car's left front corner nears the side line, keeping it aligned. After the first curve, when the right front corner touches the right line, straighten the wheel. If the second curve is a right turn, wait until the left 1/3 of the engine hood nears the left line, then turn the wheel right one full rotation, keeping the right corner aligned to complete the turn.

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Can You Shift from D to S Gear While Driving an Automatic Car?

Automatic cars can shift from D to S gear while driving. The functions of D and S gears are fundamentally similar. The D gear is the drive gear of the car. When engaged, pressing the accelerator allows the car to move forward normally, with the automatic transmission handling gear shifts. The S gear, on the other hand, is the sport mode. Engaging this gear makes the automatic transmission downshift more aggressively, resulting in a more intense power response and a more exciting driving experience. Therefore, when the car is moving forward normally, most automatic models can shift directly from D to S gear. The transmission will perform continuous downshifts, and as long as the accelerator pedal is kept pressed, the ECU will generally automatically perform the corresponding fuel compensation. For cars with manual-automatic transmission, it's better to use D gear on highways because cars typically maintain speeds between 90-120 km/h, and there's less need for overtaking, rapid acceleration, or sudden deceleration when traffic is light. Under such conditions, using D gear ensures safer, smoother, and more fuel-efficient driving. As for the S gear, it's best used during overtaking. Since overtaking on highways often requires higher speeds, engaging S gear provides greater output torque, making the overtaking process quicker and safer.

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How to Return Paddle Shifters to Automatic Mode?

To return paddle shifters to automatic mode, pull the manual shift switch toward the steering wheel and hold for a few seconds. Below are relevant details about paddle shifters: 1. Function: They significantly enhance driving operability. Paddle shifters are typically located behind the steering wheel. When operating them, simply shift the gear into D, S, or manual mode, allowing the driver to perform upshifts and downshifts without taking hands off the steering wheel. 2. Shifting Techniques: (1) Depress the clutch and release the throttle: Before depressing the clutch and releasing the throttle, the vehicle speed is 32 km/h, and the engine speed is 2500 rpm. After depressing the clutch and releasing the throttle, the engine speed begins to drop. (2) Quickly shift the gear lever from second to third gear: After shifting to third gear, the vehicle speed remains at 32 km/h, but the clutch disc speed has dropped to 1686 rpm. (3) Observe the engine tachometer: When the speed drops to 1686 rpm, follow the clutch release operation to enter the semi-clutch state. Observe the tachometer, which should be around 1700 rpm.

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What is the correct way to use the automatic transmission D+ and D-?

Automatic transmission's "D+" and "D-" refer to the manual mode. In manual mode, the driver can shift gears up or down by operating "D+" and "D-". Pushing towards "D+" once increases the gear by one, and pushing towards "D-" once decreases the gear by one. Below are the ways to use D+ and D-: 1. When going downhill, you can shift up to D2 or D3 using "D+". Downhill driving requires the engine's braking effect, and 2nd or 3rd gear can meet the power demand without needing the high torque of 1st gear. Sometimes when going uphill with sufficient power, you also need to use "D+" to shift up to prevent power waste and damage to the engine and transmission. 2. When going uphill, greater power is needed, so you should use "D-" to downshift the vehicle for higher torque to climb. Similarly, if the vehicle speeds up uncontrollably when going downhill, you should also use "D-" to downshift and control the vehicle. In addition, "D-" can also be used for short overtaking or in congested road conditions.

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What is the difference between the yellow and red lights of the airbag?

The difference between the yellow and red lights of the airbag lies in the reasons for their illumination: 1. The yellow light indicates a fault in the airbag system, such as wiring or sensor issues. 2. The red light indicates problems like a faulty steering wheel clock spring, loose or poor contact of the airbag sensor, airbag body failure, or airbag ECU wiring issues. The airbag is an auxiliary configuration for passive vehicle safety, composed of the airbag sensor, collision airbag, and electronic control device. Below is how the airbag works: 1. When the vehicle experiences a certain level of collision force, the airbag system triggers a chemical reaction similar to a small explosive detonation. The airbag, hidden within the vehicle, inflates and deploys instantly, positioning itself in time before the occupant's body collides with interior components. 2. When the body contacts the airbag, the airbag begins to deflate through the holes on its surface, cushioning the impact and reducing the force exerted on the body.

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Which cylinder does the P0351 fault code indicate?

P0351 indicates a fault in the fifth cylinder; it refers to a primary or secondary circuit malfunction in ignition coil A. Below are the relevant details: 1. The control module in the ECU may have failed; alternatively, the control module could be within the ignition coil. 2. The ignition coil may have an internal breakdown or a primary short/open circuit. It is recommended to try replacing the ignition coil. If that doesn't work, consider replacing the ECU, provided the high-voltage damping wire and spark plugs are functioning correctly. Here is an introduction to the P0351 fault code: 1. The role of the ignition coil is to transform the 12-volt voltage from the car battery into the thousands or even tens of thousands of volts required for spark plug ignition. 2. The ignition coil contains two sets of windings: the primary coil and the secondary coil. The primary coil has thicker enameled wire with fewer turns, while the secondary coil uses thinner enameled wire with relatively more turns. 3. When the primary coil is connected to a power source, a strong magnetic field is generated around it as the current increases, and the iron core stores this magnetic energy. When the switching device disconnects the primary coil circuit, the magnetic field of the primary coil rapidly decays, inducing a high voltage in the secondary coil. 4. The Electronic Control Unit (ECU) continuously monitors each ignition main circuit. If the ECU does not receive a valid Ignition Diagnostic Monitor (IDM) pulse signal from the ignition module (integrated into the ECU), this fault code will appear. Possible causes include issues with the ignition start/run circuit, ignition coil circuit, the ignition coil itself, or a fault in the Electronic Control Module (PCM or ECM).

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How many kilometers should a car's gear oil be changed?

Which line to stop at for the fixed-point parking on the slope in Subject 2?

Can You Shift from D to S Gear While Driving an Automatic Car?

How to Return Paddle Shifters to Automatic Mode?

What is the correct way to use the automatic transmission D+ and D-?

What is the difference between the yellow and red lights of the airbag?

Which cylinder does the P0351 fault code indicate?

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