
When starting a car, pressing the clutch can prevent the vehicle from suddenly lurching forward and causing an accident. The functions of the clutch are: 1. Gradually increasing the driving force to ensure a smooth start; 2. Temporarily separating the engine and transmission for gear shifting; 3. Preventing overload in the transmission system; 4. Reducing torsional vibration impacts from the engine, thereby extending the lifespan of transmission gears. The working principle of the clutch is: 1. When the inner race is fixed, the outer race can rotate freely in the clockwise direction without locking the wedge block; 2. When the outer race rotates counterclockwise, the wedge block locks, preventing the outer race from rotating. Severe clutch wear can lead to: 1. Slipping and insufficient power; 2. Difficulty starting the car or ignition problems; 3. Poor climbing performance and increased fuel consumption.

I've been driving manual transmission cars for nearly ten years, and I must press the clutch when starting the engine; otherwise, the car might suddenly move, which is very dangerous. Pressing the clutch disconnects the engine from the transmission, reducing the engine's load during startup and preventing accidental movement if the car is in gear. I remember when I first started driving, there was a time I forgot to press the clutch—the car lurched forward as soon as I started it, almost hitting a pillar in the parking lot. Since then, I've never been careless. Before starting, I always make sure the gear is in neutral and press the clutch before turning the key. Developing this habit is both safe and protects the car's components. In cities, parking spots often have slopes, so it's especially important to press the clutch an extra time to prevent rolling. Beginners should practice the starting process in open areas to minimize the risk of mistakes. With automatic transmission cars, you don’t have to worry about this—just press the brake and start the engine.

I usually drive an automatic transmission car, where starting the engine doesn't require pressing the clutch at all. The automatic transmission has built-in mechanisms to handle this part—you simply press the brake, turn the key, or push the button to start the car. The clutch is only present in manual transmissions. Automatic transmissions use a torque converter or electronic systems to control gear shifts, intelligently managing power transmission during startup, eliminating the risk of the car lurching forward. It's much simpler and more convenient to drive, especially in traffic jams, where it saves a lot of hassle. Manual transmission cars are different: starting requires pressing the clutch to disengage the drivetrain; otherwise, if the car is in gear when starting, it could lurch forward and cause an accident. As a daily commuter, I find automatic transmissions more considerate in design, reducing operational steps and improving safety. I recommend beginners start with an automatic transmission—starting the engine is as easy as turning on a light.

From a safety perspective, starting a manual transmission car requires pressing the clutch pedal. This prevents the vehicle from accidentally moving and hitting objects or people if the gear is not in neutral. Depressing the clutch disengages engine power, ensuring smooth and shock-free ignition. If not pressed, the engine faces heavy load, making it difficult to start, and may damage components or blow fuses. I once witnessed a neighbor's car rolling downhill after starting without pressing the clutch—fortunately, no major incident occurred. Developing the habit of checking the gear position and pressing the clutch before ignition is crucial. Automatic transmission cars handle ignition automatically, eliminating such concerns. Simply put, pressing the clutch to start a manual car is a fundamental safety rule—never skip it for convenience.


