At what water level does a sedan being submerged start to have an impact?

What is the curb weight of the Mercedes-Benz GLE450 in kilograms?

The curb weight of the vehicle is 22285kg. Below is the relevant introduction of the Mercedes-Benz GLE450: 1. Interior: The interior ambiance of the Mercedes-Benz GLE450 exudes a more luxurious texture, with relatively simple functional button designs that also make operations more straightforward. The new car's steering wheel integrates controls for audio, phone, and the onboard computer. The overall visual of the Mercedes-Benz GLE450's interior is consistent with the style of the dashboard, providing drivers and passengers with endless luxury enjoyment, showcasing the high-end and grand demeanor of Mercedes-Benz, as well as its noble beauty. 2. Powertrain: The GLE450 is equipped with a 3.0T twin-turbocharged V6 direct injection engine, featuring different tuning. The GLE450's engine can unleash a maximum power of 245kW at 5250rpm and sustain a peak torque of 480N·m between 1600-4000rpm. Paired with this engine is the 7G-TRONIC-PLUS enhanced 9-speed automatic transmission.

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Can I Take the Driving Test Part 3 with an Expired ID Card?

You can take the Driving Test Part 3 with an expired ID card by using a temporary ID card. A temporary ID card has the same legal validity as a formal ID card and can be used as a formal ID card within its 3-month validity period. Therefore, there is no problem using a temporary ID card for the Driving Test Part 3. The Driving Test Part 3 includes the road driving skills test and the safe and civilized driving knowledge test, which are part of the motor vehicle driver's license examination. It is commonly referred to as the road driving skills and safe and civilized driving knowledge test for motor vehicle drivers. The full score is 100, and a passing score is 90. You can retake the test once on the spot. If you fail the retest, you can reschedule after 10 days. The road driving skills test for Part 3 includes: vehicle preparation, light simulation test, starting, driving straight, gear shifting, lane changing, pulling over, going straight through intersections, turning left at intersections, turning right at intersections, crossing pedestrian crossings, passing school zones, passing bus stops, meeting other vehicles, overtaking, making U-turns, and nighttime driving. Important notes for the Driving Test Part 3: Starting: Close the door, fasten the seat belt, turn on the left signal, shift to second gear, honk the horn three times, observe the left rearview mirror, slowly release the clutch while accelerating and release the parking brake to start, avoiding rolling back. Going straight through intersections: Speed should not exceed 30 or be below 20; do not cross the yellow line. Bus stops: Speed should not exceed 30 or be below 20; do not cross the yellow line. Turning right at intersections: Turn on the left signal 3 seconds in advance; speed should not exceed 30 or be below 20; do not cross the line. Changing lanes: Turn on the left signal 3 seconds in advance; speed should not exceed 30 or be below 20; do not cross the edge line. Overtaking: Turn on the left signal 3 seconds in advance; speed should not exceed 30 or be below 20; do not cross the edge line. Turning left at intersections: Turn on the left signal 3 seconds in advance; speed should not exceed 30 or be below 20; do not cross the line. Passing school zones: Speed should not exceed 30 or be below 20; do not cross the line or honk. Driving straight: Shift to fifth gear and accelerate above 40; speed should be above 40; do not cross the line. Accelerating: Shift to fifth gear and accelerate above 40; speed should be above 40; do not cross the line. Making U-turns: Choose an appropriate section, turn on the right signal, move to the rightmost lane, stop, turn on the left signal, shift to second gear, make a two-forward-one-reverse U-turn, avoiding rolling back. Pulling over: Turn on the right signal for 3 seconds before pulling over; the right wheel should be no more than 30 cm from the roadside line; apply the parking brake and shift to neutral. Scoring criteria for Part 3: The following situations result in immediate failure: Not wearing a seat belt as required; Blocking or turning off the in-vehicle audio and video monitoring equipment; Not following the examiner's instructions; Rolling back more than 30 cm when starting; Mismatch between gear and speed for an extended period, causing the engine to run too high or too low; Failing to shift gears twice in a row while driving; Coasting in neutral; Not following traffic signals, signs, or markings; Not driving at the required speed; Driving over the solid center line or edge line of the road; Driving over the lane divider for more than 15 seconds; Changing two or more lanes in succession; Parking in no-parking zones such as pedestrian crossings or grid lines; Not attending the test at the scheduled time. The following situations result in a 10-point deduction: Rolling back less than 30 cm when starting; Shifting to the wrong gear when starting or driving; Not using or incorrectly using the turn signal before starting, turning, changing lanes, overtaking, or stopping; Turning the steering wheel less than 3 seconds after turning on the turn signal before starting, turning, changing lanes, overtaking, or stopping; Stalling the engine once due to improper operation. Vehicle preparation: Failing to walk around the vehicle counterclockwise to inspect the vehicle's appearance and surroundings results in failure. Starting: The following situations result in immediate failure: Starting with insufficient brake pressure; Starting with the door not fully closed; Not shifting to neutral when starting the engine; Starting without releasing the parking brake and failing to correct it promptly. The following situations result in a 10-point deduction: Starting without releasing the parking brake but correcting it promptly; Not releasing the starter switch promptly after the engine starts. Gear shifting: Failing to shift gears smoothly as instructed results in failure; Mismatch between vehicle speed and gear results in a 10-point deduction. Pulling over: Parking with the vehicle body over the right edge line or pedestrian crossing results in failure; Not closing the door after getting out results in failure; Parking with the vehicle body more than 30 cm from the right edge line or sidewalk results in a 10-point deduction; Not applying the parking brake after parking results in a 10-point deduction; Releasing the brake pedal before applying the parking brake results in a 10-point deduction; Not turning off the engine before getting out results in a 5-point deduction. Going straight through intersections, turning left or right at intersections: Failing to slow down or stop to observe as required results in failure. Passing pedestrian crossings, school zones, or bus stops: Failing to slow down as required results in failure.

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Should the MG 5 use 92 or 95 octane gasoline?

According to the official vehicle manual recommendation, the MG 5 should use 92 octane gasoline. In addition to checking the appropriate gasoline grade in the vehicle manual, you can also find it marked on the fuel tank cap. Generally, the gasoline grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92 octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95 octane gasoline. However, with the application of new technologies, the compression ratio alone cannot determine the gasoline grade, as high compression ratio engines can also be tuned to use lower octane gasoline. Other factors such as ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline grade, the higher the octane number and the better the anti-knock performance. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. If the MG 5 occasionally uses the wrong gasoline grade, simply switch back to the correct grade after consumption. However, long-term use of the wrong gasoline grade can have the following effects: For vehicles recommended to use lower octane gasoline, using higher octane gasoline will not cause damage, but the increased octane number may alter the fuel's ignition point, leading to delayed combustion in the engine. This results in reduced engine power and thermal efficiency, manifesting as poorer performance. For vehicles recommended to use higher octane gasoline, using lower octane gasoline can cause engine knocking. The significantly lower octane number reduces the fuel's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug fires, resistance will develop during the upward stroke. This resistance leads to unstable engine operation. If the knocking is mild, it may only increase noise without significant engine damage. However, noticeable knocking indicates severe engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, and in severe cases, cylinder scoring.

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What brand is the transmission of the Changan UNI-K?

"The transmission brand of the Changan UNI-K is Aisin. Established in 1969, Aisin is a world-renowned professional research, development, and manufacturer of automotive automatic transmissions. In the field of automotive automatic transmissions, Aisin's products hold the highest market share globally. The Changan UNI-K is equipped with an Aisin 8AT automatic manual transmission. The automatic manual transmission is essentially a traditional AT or CVT transmission with the addition of manual shifting functionality. The purpose of the automatic manual transmission is to enhance the driving pleasure of automatic vehicles. When using the transmission of the Changan UNI-K in daily driving, the following points should be noted: Do not delay changing the transmission oil for extended periods. Prolonged failure to change the transmission oil can lead to damage to internal components such as bearings and the housing. Avoid prolonged coasting in neutral. While driving manual transmission vehicles, many experienced drivers tend to coast in neutral, but for automatic transmission vehicles, coasting in neutral can cause the automatic transmission to overheat, and shifting back into D gear may result in some impact. Never shift into D/R gear before the vehicle comes to a complete stop. Many drivers, to demonstrate their "smooth" operation, shift directly into reverse gear before the vehicle stops completely, which can cause significant damage to the transmission gears and may lead to gear grinding faults over time. Avoid frequently climbing steep slopes in D gear. When facing steep slopes, automatic transmission vehicles often overheat due to high load or shift prematurely, resulting in insufficient climbing power. In such cases, manual mode can be used to limit the gear to low speed or sport mode to protect the transmission. Do not tow the vehicle over long distances. If an automatic transmission vehicle breaks down, it should be moved onto a flatbed tow truck in N gear, rather than being towed directly using a tow rope or similar methods."

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What are the tips for controlling the clutch in Subject 2?

The key to controlling the clutch in Subject 2 is to press down quickly and lift slowly, pausing slightly midway to find the contact point; maintain a gentle pressure above the contact point and lift the pedal smoothly for coordinated movement. Here is some relevant information about the clutch: 1. How the clutch works: The clutch operates by depressing or releasing the clutch pedal, temporarily separating or gradually engaging the engine with the transmission to cut off or transmit the engine's power to the gearbox. 2. The working states of the clutch: The clutch has three working states: disengaged when the clutch is fully depressed, fully engaged when the clutch is not depressed, and semi-engaged when the clutch is partially depressed. Semi-engagement is the decisive factor in whether the engine's kinetic energy is transmitted to the wheels. Many people experience unstable speeds or even stalling because they fail to accurately master the semi-engaged state, either pressing or releasing the clutch too much.

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Why Keep Lightly Pressing the Brake at Red Lights?

The reasons for keeping the brake lightly pressed at red lights are as follows: 1. Prevent Rolling: For automatic transmission vehicles, rolling is less likely to occur. However, for manual transmission vehicles, when the light changes from red to green, operational errors can easily cause the vehicle to roll forward or backward. If the driver fails to press the brake in time, it may lead to a "close encounter" with the vehicle in front, causing unnecessary traffic congestion and potential injuries. Keeping the brake lightly pressed can effectively prevent rolling, as pressing the brake fully will immobilize the vehicle. 2. Maintain Vehicle Stability: Frequent gear shifting increases operational difficulty and can lead to vehicle instability, causing abnormal noises and vibrations that affect the riding experience. Lightly pressing the brake with the right foot avoids these issues and helps maintain vehicle stability. 3. Save Time: At red lights, most novice drivers park by "shifting to neutral + pulling the handbrake." While this method is not wrong, when the light turns green, the driver needs to shift gears and release the handbrake before starting the vehicle, which is time-consuming. Some drivers might even forget to release the handbrake, causing abnormal noises and affecting the vehicle's lifespan. Lightly pressing the brake during the wait can save time. Once the light turns green, the driver only needs to shift gears and release the brake to start moving. 4. Increase Traffic Flow: The duration of green lights varies across different road sections. Some sections have green lights lasting over 60 seconds, while others may only last 20-30 seconds or even less. To pass through the green light quickly, every second counts. Keeping the gear in first and lightly pressing the brake can effectively increase traffic flow. As soon as the driver sees the green light, releasing the brake, pressing the accelerator, and shifting gears allows for smooth passage.

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At what water level does a sedan being submerged start to have an impact?

What is the curb weight of the Mercedes-Benz GLE450 in kilograms?

Can I Take the Driving Test Part 3 with an Expired ID Card?

Should the MG 5 use 92 or 95 octane gasoline?

What brand is the transmission of the Changan UNI-K?

What are the tips for controlling the clutch in Subject 2?

Why Keep Lightly Pressing the Brake at Red Lights?

How to Handle ETC for Mortgaged Vehicles?

What is the recommended speed indicated by speed limit signs with yellow background and black numbers?

Why is the car's reverse light always on?

What Causes the Abnormal Noise in Baojun 510 on Bumpy Roads?