What are the differences between the 2021 Sylphy XE and XL models?

What does it mean when a Mercedes-Benz keeps the engine running while parked?

When a Mercedes-Benz keeps the engine running while parked, it indicates that the battery power is insufficient or the battery power is not detected. In this case, you can first check whether the battery terminal is loose and try tightening it. If the car can still be started, you can drive for half an hour or idle for one hour to see if the prompt disappears. If the prompt disappears, it means that the battery's stored power was insufficient before and needs to be replaced soon. Taking the Mercedes-Benz S600 as an example, the car is equipped with a new V12 engine, each cylinder has 3 valves, driven by a single overhead camshaft, with an autonomous driving system with distance radar and an independent air conditioning system for the rear seats.

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What is horsepower as a unit?

Horsepower is a unit of engine power, representing the engine's ability to perform work per unit of time, generally referring to metric horsepower rather than imperial horsepower. Horsepower is a unit used to measure the performance of a car engine and is also an important parameter for evaluating a vehicle's overall performance. Simply put, the greater the horsepower, the more energy the engine can release in the same amount of time. A car's horsepower is generally related to its displacement and compression ratio. The larger the volume of gas expelled per engine rotation, the more fuel it consumes and the higher the horsepower. According to the ideal gas law, a higher compression ratio leads to greater horsepower, but it also requires the use of gasoline with better anti-knock properties, i.e., higher-octane fuel.

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Can a small tire bulge be repaired?

Tire bulges cannot be repaired because they are caused by damage to the inner cord layers of the tire. The cord layers act as the skeleton of the tire, relying on nylon threads to prevent the internal gas from bulging outward. When several threads break, only the elastic rubber remains to support the tire, leading to uncontrolled internal pressure. This results in uneven force distribution on the outer tire, causing the rubber at the broken cord area to bulge under pressure. Such bulges are irreparable. Even if a repair is attempted by patching a rubber piece over the damaged area, it may look fine superficially, but the internal cord damage remains unfixable. The only solution is replacement. Moreover, since bulges typically occur on the tire sidewall, which constantly deforms and recovers during operation, any patched rubber piece will eventually detach over time.

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How to Use the S Gear in Volkswagen Cars?

The method to use the S gear in Volkswagen cars is: 1. Simply push the gear lever to the S position; 2. You can shift from D gear to S gear while driving without needing to press the brake pedal. Generally, automatic transmission cars are equipped with an S gear, where 'S' stands for 'sport', indicating a sporty mode. When using the S gear, the transmission will delay the shift timing until the engine speed reaches the redline zone before shifting. Even without pressing the accelerator pedal, the engine speed will remain around 3000 rpm, providing better power response when the accelerator is pressed. Taking the Volkswagen Bora as an example, in terms of body dimensions, the Bora measures 4663 mm in length, 1815 mm in width, and 1473 mm in height, with a wheelbase of 2688 mm. In terms of appearance, the Bora follows Volkswagen's family-style design, presenting a more moderate look. The entire grille area features a horizontal design, offering good recognition.

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What to Do When a Car Rolls Backward on a Slope?

Restart the car, press the clutch, and step on the brake, keeping the clutch in a semi-engaged state. Finally, press the accelerator and release the clutch. Below is a brief introduction about rolling backward: 1. Reasons for rolling backward: It occurs when the handbrake is released before the clutch engagement point is sufficiently raised (the clutch is raised too low) or without giving enough throttle (the car's idle speed is too low to initiate movement). 2. Key points to avoid stalling or rolling backward when starting on a slope: Press the foot brake as far down as possible to maintain sufficient braking force; once the clutch reaches the semi-engagement point, hold it steady without excessive shaking, then slowly release the brake.

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How to Shift from D to S Gear While Driving?

Simply move the gear lever to the S position. Below is some information about the S gear: 1. Purpose: The S gear is typically used for climbing hills and quick overtaking. After shifting to S gear, the transmission can shift freely, but the shift timing is delayed, keeping the engine at high RPMs for a longer period. This allows the car to maintain high RPMs in lower gears for an extended time, resulting in greater torque output and acceleration. 2. Drawbacks: When in S gear, the car can shift freely, which is convenient. However, it is best not to use it frequently, as excessive use of S gear can severely affect the transmission.

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What are the differences between the 2021 Sylphy XE and XL models?

What does it mean when a Mercedes-Benz keeps the engine running while parked?

What is horsepower as a unit?

Can a small tire bulge be repaired?

How to Use the S Gear in Volkswagen Cars?

What to Do When a Car Rolls Backward on a Slope?

How to Shift from D to S Gear While Driving?

What is VTEC?

Does the Nissan Sylphy have an ESP system?

What are the differences between Mercedes-Benz ML and GLE?

What are the test items for C2 Subject 3?