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What is the reason for the Passat shaking when cold but not when hot?

1 Answers

DelElla

07/29/25 2:12pm

Passat shaking when cold but not when hot is most fundamentally caused by poor fuel quality leading to incomplete combustion in the cylinders. Incomplete combustion results in insufficient power output, causing the vehicle to shake. Here are the specific details: 1. Poor fuel quality not only affects the overall performance of the engine but also causes damage to the engine over time, shortening its service life. 2. It is recommended not to opt for cheap, low-quality fuel for temporary savings, nor to blindly use higher-grade gasoline. Instead, choose the appropriate fuel grade as specified in the vehicle manual.

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