
Here are the reasons why the Magotan shakes and stalls when starting cold: 1. The engine temperature is too low. During a cold start, more fuel should be injected to meet the power requirements. 2. The spark plug gap increases, reducing the ignition energy. After prolonged use, the spark plug gap tends to widen, leading to decreased ignition energy, which affects performance and causes the car to shake. 3. Aging ignition coils, or aging or leaking high-voltage wires of the spark plugs. 4. The vehicle's execution system has errors in controlling the air-fuel mixture or ignition timing, reducing power output and causing shaking.

As a veteran driver with twenty years of experience driving Volkswagen cars, I've experienced the annoying issue of the engine shaking and stalling during cold starts. This usually happens in cold weather, possibly due to excessive carbon buildup in the engine affecting combustion efficiency, or clogged fuel injectors in the fuel system causing unstable fuel supply. Worn-out spark plugs can also lead to poor ignition, causing the engine to stall when it shakes. My own Magotan had this issue last winter, and after inspection, it turned out the fuel injectors were dirty—cleaning them immediately restored smooth operation. Safety is paramount; stopping abruptly can easily lead to rear-end collisions. I recommend going to a 4S shop immediately to scan for fault codes and conduct a thorough inspection of the fuel system and ignition system. Regular maintenance, such as frequent air filter changes and avoiding poor-quality fuel, is also essential.

With 20 years of car repair experience, I've seen this issue often. A cold start with shaking followed by stalling is usually related to the fuel system, such as insufficient fuel pump pressure or carbon buildup in the fuel injectors, leading to an unstable fuel-air mixture. Worn or unstable spark plugs can also cause ignition failure, making the engine lose power and stall instantly. A dirty throttle body can similarly affect air intake, disrupting the air-fuel ratio. Simple troubleshooting steps: First, check if the fuel gauge is normal, try cleaning the throttle body, and inspect the spark plugs. If there's no improvement, test the fuel pressure. Safety first—don't delay, or you risk breaking down on the road.

My Magotan is five years old, and it suddenly shook and stalled when starting cold, which was really scary. The reason might be poor fuel fluidity at low temperatures or interrupted combustion due to poor contact of the ignition coil. In my personal experience, similar issues occurred after using low-quality fuel, and they were resolved after cleaning the fuel injectors. Normally, it's important to warm up the engine for a few seconds before starting, regularly check the engine oil condition, and perform routine maintenance to prevent such problems. Don't hesitate; take it to a professional shop immediately to ensure driving safety.


