What could be the reason for a Tiguan car suddenly failing to start despite having fuel and electricity?

[DiGrace]

Tiguan car suddenly failing to start despite having fuel and electricity could be due to a blocked fuel line or issues with the ignition coil or spark plugs. Clean the air filter: The air filter is crucial for the engine's air intake during operation. If the air filter is clogged or excessively dirty, it can obstruct the engine's air intake, allowing large amounts of dust to enter the cylinders. This accelerates carbon buildup in the cylinders, leading to poor engine ignition, reduced power, and naturally increased fuel consumption. Remove throttle valve sludge: Sludge forms partly due to carbon deposits from fuel combustion exhaust accumulating on the throttle valve, as well as impurities not filtered by the air filter remaining there. Excessive sludge can cause air intake resistance, leading to increased fuel consumption. Clean injector carbon deposits: Carbon deposits easily form in the combustion chamber, making starting difficult. Carbon deposits on the injectors can also clog fuel passages, distort gasoline injection, and result in poor atomization, naturally increasing fuel consumption.