What are the reasons for the high fuel consumption of the Tiguan L?

1 Answers
LaAshley
07/29/25 11:17pm
The reasons for the high fuel consumption of the Tiguan: 1. Severe engine carbon deposits: Long-term operation of the vehicle inevitably leads to carbon deposits and sludge during gasoline combustion. If these deposits and sludge are not cleaned in time, it will result in increased fuel consumption. 2. Spark plug failure: The function of the car's spark plug is to generate an electric spark with high voltage to ignite the air-fuel mixture. If damaged, the ignition energy decreases, causing uneven combustion of the mixture, which leads to slower acceleration and increased fuel consumption. 3. Oxygen sensor failure: The oxygen sensor is used to detect exhaust gases. By analyzing the oxygen content data in the exhaust, over time, the oxygen sensor can accumulate carbon deposits, leading to inaccurate data and consequently higher fuel consumption.
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