Is Severe Engine Vibration Normal When the Lavida's Air Conditioning is On?

[AlyssaMarie]

Severe engine vibration when the Lavida's air conditioning is on is not normal and may be caused by excessively low idle speed. Overview: The automotive air conditioning system (air-conditioning-device), commonly referred to as car air conditioning, is used to regulate and control the temperature, humidity, air cleanliness, and airflow within the vehicle cabin to optimal conditions. Function: Car air conditioning provides drivers with a comfortable riding environment, reducing travel fatigue, and creates favorable working conditions to ensure driving safety. The automotive air conditioning system typically includes cooling devices, heating devices, and ventilation devices.

[DelSadie]

I've driven the Lavida and felt severe engine shaking when the AC is on, which is definitely abnormal. I remember my own car is a 2018 Lavida. Every time the AC starts, the compressor increases the load, causing slight vibrations. But if the whole car shakes like a sieve, then you should be alarmed. Common causes include aging spark plugs, excessive engine carbon buildup, or worn-out engine mount rubber parts leading to failed damping. The Lavida is equipped with a small 1.5L engine, which is inherently sensitive. When the AC load increases, unstable idling becomes apparent. The last time I encountered this issue, I took it to the 4S shop for inspection and replaced the ignition coils and spark plugs, and it was fixed immediately. Don't ignore it—this shaking could lead to a sudden spike in fuel consumption or even stalling midway, which is a serious safety concern. Regular checks and early repairs save money and hassle. Otherwise, delaying repairs could cost you thousands more for an engine mount replacement later.

[Natalie]

As someone who enjoys studying automotive mechanics, severe engine shaking when the air conditioning is turned on in a Lavida is abnormal. The principle is simple: when the AC compressor starts, the engine experiences an instant increase in load, equivalent to adding a small burden. If the system isn't properly controlled—such as due to carbon buildup clogging the throttle body, weakened spark plug ignition capability, or air intake system leaks—it can lead to uneven combustion and severe idle fluctuations. The Lavida's engine management system may not adjust promptly when the AC is turned on or off, amplifying the shaking. I recommend first using an OBD scanner to read fault codes and confirm whether issues involve the mass airflow sensor or ECU. Regular maintenance to clean carbon deposits is crucial; the air filter should be replaced every 10,000 kilometers, and spark plugs should be inspected and replaced every 50,000 kilometers. Don't ignore severe shaking—prolonged neglect can wear out other components, making repairs more troublesome later.

[LeLena]

Having driven for over twenty years and tried various cars, the Lavida's excessive shaking with the AC on is unacceptable. When the AC is running, the engine load doubles, which should only cause slight vibrations. Severe shaking often indicates common issues: worn-out spark plugs, a dirty throttle body, or deteriorated engine mounts. The Lavida's AC frequently cycles on and off, making the shaking more noticeable if the idle is unstable. My first car in my younger years broke down midway due to similar problems. The solution is simple: regularly inspect the ignition system and replace spark plugs every three to four years. Don't delay if you encounter this issue—visit a repair shop to check the engine's operational data. Ignoring small problems can lead to bigger troubles. Fixing it ensures a smooth and comfortable ride, saving money and ensuring safety.