What are the reasons for high fuel consumption in Jetta?

1 Answers
CharlieRose
07/30/25 3:48am
The reasons for high fuel consumption in Jetta are as follows: 1. Lack of regular maintenance: If the vehicle is not maintained on time, and components such as the air filter, fuel filter, spark plugs, and clutch plates are not replaced promptly, it will invisibly lead to increased fuel consumption. 2. Component malfunctions: Carbon deposits and faults in the electronic control system can also cause higher fuel consumption. For example, carbon buildup on the throttle body, idle valve, and fuel injectors, as well as inaccurate signals from the oxygen sensor and coolant temperature sensor, are factors contributing to excessive fuel consumption. 3. Tire pressure and fuel quality: Low tire pressure and the use of inferior fuel can also increase the vehicle's fuel consumption.
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