How often should the fuel injectors of Volkswagen Tiguan be cleaned?
2 Answers
The fuel injectors of Volkswagen Tiguan should be cleaned every 30,000 to 40,000 kilometers. If frequently driving in the city, the interval should be shortened. Definition of fuel injector: A fuel injector is a normally closed valve (a normally closed valve means that the valve remains closed when there is no control signal input; while a normally open valve remains open when there is no control signal input), controlled by the up and down movement of a valve needle to open or close the valve. Working principle of fuel injector: When the ECU issues a fuel injection command, its voltage signal causes current to flow through the coil inside the injector, generating a magnetic field to lift the valve needle, thereby opening the valve to allow fuel to spray out from the injection hole. The greatest advantage of fuel injection supply is the precise control of fuel delivery, enabling the engine to maintain the correct air-fuel ratio under any condition, ensuring smooth engine operation and compliance of exhaust emissions with environmental regulations.
I've been driving a Volkswagen Tiguan for about seven or eight years, and cleaning the fuel injectors shouldn't be approached too rigidly. I usually check them every 40,000 kilometers or so because they tend to accumulate carbon deposits, especially when driving frequently in city traffic jams. If you notice symptoms like reduced power, increased fuel consumption, or slight engine shaking during ignition, it might indicate clogged fuel injectors, and that's when they should be cleaned. Additionally, using high-quality gasoline can help reduce carbon buildup, allowing you to extend the cleaning intervals. I recommend having a technician inspect them during major maintenance services and avoiding prolonged idling during regular driving—this approach is quite effective for engine maintenance.
