Get Oil circuit ? hydraulic system -> Gear changes Guide for Volkswagen Touran 4 Door First Generation (2003-2015)

Gear changes

As in the case of the direct shift gearbox 02E, the selector forks are actuated hydraulically.

To change the gears, the mechatronic electronic control unit actuates the corresponding gear selector solenoid

valve.

How it works

Initial position

Changing to 1st gear is shown here as an example.

The gear selector piston is held in neutral position "N"

via the oil pressure controlled by gear selector

solenoid valve N433 for gears 1 and 3. No gear is

engaged.

Valve 4 in gear train half 1 N436 controls the oil

pressure in gear train half 1.

Mechatronic unit

N436

Pressure control valve

in gear train half 1

N433

gears 1/3

Gear selector cylinder

Gear selector piston

Piston chamber

Sliding sleeve

Selector fork

S390_057

Oil circuit – hydraulic system

Changing to 1st gear

To change to 1st gear, the gear selector valve increases the oil pressure in the left piston chamber. As a result of this,

the gear selector piston is pushed to the right. As the selector fork and the sliding sleeve are connected to the gear

selector piston, they also move to the right.

Due to the sliding sleeve's movement, 1st gear is engaged.