The electronically controlled fuel injection system brings more power, less soot emissions, less noise and better economy. In Volkswagen's TDI engine, the fuel injection time and fuel injection volume are controlled by a computer, while the previous diesel engine uses a mechanical control method. The cold start button has disappeared, and the corresponding operation is automatically completed by the engine.
The Garret VNT15 variable area turbocharger on the TDI model takes the supercharging technology to a new level. It has a faster response (although the supercharging lag of the previous model is also relatively slight), and the effective range is wider , And will not cause the problem of excessive exhaust back pressure. In Volkswagen's TDI engine, the boost response is controlled within 0.25 seconds, and the driver does not feel the presence of boost lag at all.