Why does the Tiguan experience continuous jerking when accelerating?

[LydiaAnn]

The reasons for the Tiguan experiencing continuous jerking when accelerating are as follows: 1. Excessive engine carbon deposits: Excessive engine carbon deposits are a major cause, primarily due to the use of unsuitable fuel. You can add a certain amount of cleaning agent when refueling, and after cleaning, drive at high speed for a while, which helps increase exhaust flow and allows stronger airflow to remove larger carbon deposit particles. 2. Damaged oxygen sensor: The oxygen sensor mainly monitors the fuel-air ratio in the engine. Once damaged, it can cause an imbalance in the fuel-air ratio, leading to a sudden increase in fuel consumption. After the oxygen sensor is damaged, the vehicle will emit darker exhaust gases from the tailpipe during driving, and the oxygen sensor should be replaced at this time. 3. Long time without replacing the three filters: During vehicle use, the oil filter, air filter, and fuel filter must be replaced regularly. If they are not replaced for a long time, they will become dirty and affect performance, sending incorrect information to the engine control unit, resulting in incomplete fuel combustion and increased engine carbon deposits.