What Causes the Body Shaking of Audi A4L?

[ElianaLee]

Audi A4L body shaking is caused by severely deteriorated fuel or carbon deposit clogging. Severely deteriorated fuel: When fuel deteriorates, it leads to unstable combustion quality. Since the fuel injector nozzles have extremely small apertures, the excessive gum content in deteriorated fuel causes large particles of impurities to partially block the injector nozzles, resulting in intermittent spray atomization and consequently combustion shaking. Carbon deposit clogging: As the fuel injectors operate in the combustion chamber, excessive ash accumulates on the exterior of the injectors. Prolonged exposure to high temperatures leads to carbon deposit clogging, which causes body shaking and poor driving experience.