What are the symptoms of a faulty exhaust valve in the Magotan?

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Symptoms of a faulty exhaust valve in the Magotan: 1. Open the oil filler cap; if there is severe suction, it indicates an issue with the exhaust valve; 2. Sudden emission of excessive exhaust smoke, white at idle and blue during rapid acceleration or heavy throttle; 3. Accompanied by a strong burnt rubber smell, distinct from the normal odor of burning engine oil; 4. If a whistling sound is heard, it can almost certainly be confirmed as an exhaust valve issue. If the exhaust valve is not repaired promptly, a large amount of engine oil can enter the cylinder. Since liquids are incompressible, the piston and cylinder can be damaged, leading to engine seizure. It is essential to seek professional repair as soon as possible. The Magotan is a B-class sedan introduced by FAW-Volkswagen, featuring an exterior design meticulously crafted by German experts. It incorporates contemporary automotive design elements, with a dynamic and elegant appearance that represents the latest European automotive design philosophy. The bold V-shaped front grille exudes stability and sophistication, while the sleek and stylish body lines give the Magotan an impressively low drag coefficient of just 0.28.