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The housing is filled with oil and hermetically
sealed against the atmosphere.
The plate coupling which runs immersed in oil
represents a closed system.
It has its own oil circuit, hydraulic compon-
ents, an electrohydraulic control valve and an
electrical control unit.
The system is electrically linked to the on-
board CAN databus.
The rear axle is a rear differential.
The system configuration
The Haldex viscous coupling is accommoda-
ted in a closed housing and mounted in front
of the rear axle drive.
The input shaft and the output shaft are sepa-
rate.
These shafts are connected via a plate cou-
pling running in oil.
The coupling package comprises inner and
outer plates, which are connected to the input
shaft and output shaft respectively.
Arranged around the shaft at the coupling
input end are a working piston and two paral-
lel annular piston pumps with a single annular
piston each.
SSP207/11
Input end
(propshaft)
Working piston
Piston of
annular piston pump
Plate coupling
Coupling output end (rear
axle differential input)
