Why is the fuel consumption of the 4WD Tiguan so high?
2 Answers
The reasons for the high fuel consumption of the 4WD Tiguan are as follows: 1. Severe engine carbon deposits: During long-term operation of the vehicle, carbon deposits and sludge are inevitably produced during the combustion of gasoline. If these deposits and sludge are not cleaned in time, it will lead to an increase in fuel consumption. 2. Spark plug failure: The function of the spark plug is to generate an electric spark with high voltage to ignite the air-fuel mixture. If it is damaged, the ignition energy will decrease, and the mixture will burn unevenly, resulting in slower acceleration and increased fuel consumption. 3. Oxygen sensor failure: The oxygen sensor is used to detect exhaust gases and analyze the oxygen content data in the exhaust. After prolonged use, the oxygen sensor can accumulate carbon deposits, leading to inaccurate data and increased fuel consumption.
After driving the 4WD Tiguan for a while, I've noticed its fuel consumption is significantly higher than regular models. This is mainly because the 4WD system's design adds extra weight and mechanical resistance – components like drive shafts and transfer cases consume additional energy. During frequent stop-and-go in urban traffic, the engine constantly needs to deliver more power to maintain four-wheel drive, naturally burning more fuel. Switching to off-road mode on muddy rural roads will cause fuel consumption to skyrocket. I recommend regularly checking tire pressure, as maintaining proper inflation can reduce rolling resistance. Avoid sudden acceleration or braking – driving at steady speeds helps save fuel. Vehicle weight is another factor; the Tiguan with 4WD components exceeds two tons, much heavier than compact sedans, making acceleration more laborious and fuel consumption naturally higher.
