In an automatic transmission, the gear ratio is changed by connecting different gears through a hydraulic control system. This occurs depending on the engine speed and the position of the accelerator pedal.
Position "E" control lever
Technical feature of automatic transmission diesel models "Golf" or "Jetta" is an additional position of the control lever, which promises some fuel savings.
When the control lever is in this position, the transmission torque converter is in slip mode (e.g. downhill without depressing the accelerator pedal). Thus, this is the same "free movement", that happens with a bicycle. The large braking effect of a diesel vehicle engine is not strongly manifested, the vehicle travels down roads with slight inclines with fuel economy or coasts in front of traffic lights or barriers.
If the vehicle was moving rapidly in this mode and then the accelerator pedal was pressed hard, this could cause the vehicle to jerk forward. Gradually increasing the engine speed is more comfortable and saves fuel.
Instruction. The gears of the planetary gearbox are constantly in mesh, the fluid in the gearbox always tends when the lever is in position "D" with the engine running, rotate the drive wheels. That's why "Volkswagen" moves slowly even at idle speed. Position "E" corresponds to the state when the engine is disconnected from the gearbox.
Instruction. And in extreme cases, an attempt to start the engine from a tug is possible. To do this, the hydraulic system of the automatic transmission must be pressurized and the oil must be well pumped. The car must move at a speed of 30-40 km / h for 3-5 minutes. The engine is ready to start. The gear lever is in the position "N" or "E". The lever is then moved to the position "ABOUT" and abruptly (Kikdown) the accelerator is pressed. After starting the engine, move the control lever to position "N".
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