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Gear train half pressure control valves
Valve 4 in gear train half 1 N436,
valve 4 in gear train half 2 N440
Both valves are solenoid valves, and are located in
the mechatronic unit's hydraulic module.
Valve 4 in gear train half 1 controls the hydraulic oil
pressure to the gear selectors and to the clutch
actuator in gear train half 1.
Gear train half 1 is used to shift gears 1, 3, 5 and 7.
Valve 4 in gear train half 2 controls the hydraulic oil
pressure to the gear selectors and to the clutch
actuator in gear train half 2.
Valve 4 in gear train half 2
N440
S390_077
Valve 4 in gear train half 1
N436
Effects of signal failure
If one of the solenoid valves fails, the corresponding gear train half is shut off, and only the gears assigned to the
other gear train half can be engaged.
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