The engine warning light on the Lynk & Co 01 may illuminate due to the following 7 main reasons: Sensor malfunction: This includes sensors such as coolant temperature, crankshaft position, air flow, intake temperature, and oxygen sensors. When these sensors are damaged, have poor contact, or experience signal interruption, the vehicle's ECU cannot accurately obtain engine data, triggering the engine warning light. Fuel quality issues: Failure to use the fuel and engine oil as specified by the manufacturer may cause engine wear, leading to the illumination of the warning light. Poor combustion of the air-fuel mixture: This can result in engine carbon buildup or knocking. When detected by the oxygen sensor and reported to the ECU, the warning light will illuminate as a warning. Spark plug failure, ignition coil failure, fuel pump failure, or fuel line blockage can all cause poor combustion of the air-fuel mixture. Turbocharger issues: Problems with the intake turbo piping or the turbocharger itself can also trigger the engine warning light. The most common issue is turbocharger damage, accompanied by symptoms such as oil leakage, excessive oil consumption, reduced power, metallic noises, or blue/black smoke from the exhaust. Intake problems: If the vehicle's intake system is compromised, it may lead to engine pipe blockage, and in severe cases, the engine warning light will illuminate. A dirty or uncleaned air filter can cause intake problems. Exhaust problems: Exhaust system faults can also trigger the engine warning light. Common causes include rear oxygen sensor failure, catalytic converter issues, exhaust camshaft and bearing failure, with the catalytic converter being the most frequent culprit. The use of leaded gasoline, lead or silicon-based lubricant additives, physical damage to the catalytic converter, or fuel system malfunctions can easily lead to catalytic converter failure. Anti-theft system malfunction: If the vehicle's electronic anti-theft system fails or if there is a mismatch between the anti-theft controller and the engine ECU, the anti-theft system can prevent the engine from operating normally, accompanied by the illumination of the engine warning light. If the engine warning light illuminates, follow these steps: First, check if the engine is running normally and whether there are issues such as shaking or black smoke. If so, avoid restarting the engine. Particularly, never restart the engine if the red warning light is on. If the engine can be started, turn it off and wait for 5-10 minutes. Without pressing the brake, press the start button once or turn the key halfway to the 'on' position without depressing the clutch. The vehicle will perform a self-check upon powering on. After 5-10 seconds, observe whether the warning light on the dashboard turns off. If the warning light remains on, visit a service center as soon as possible. The service center can use a portable diagnostic tool to read the fault code, identify the issue, and perform targeted repairs.
