6
E46iCCVM/ST039/3/21/00
Hydraulic Unit
The hydraulic unit is mounted in the trunk on the left side behind the trim cover. It is mount-
ed on a rubber bushing and covered by sound insulation for noise reduction during pump
operation. The hydraulic unit consists of:
• Motor,
• Pump,
• Storage Cover Solenoid Valve/ Drain Solenoid Valve
• Reservoir.
• Temperature Sensor - hydraulic fluid
The hydraulic unit provides an operating pressure of up to 200 bar for the tops operation.
A temperature sensor on the hydraulic unit will signal the top module to cease operation if
the fluid temperature exceeds 95
0
C. Any function started will be completed before the sys-
tem is switched off. If the temperature exceeds 105
0
, the system is immediately switched
off and the emergency closing procedure will be required for closing the top.
When the temperature drops below 95
0
, the operation of the top can be resumed.
Filling or checking the hydraulic fluid is only carried out when the top is lowered in the stor-
age compartment. The recommended fluid is “ARAL VITAMOL” PN 54 34 8 410 000 (Refer
to the repair manual for filling procedures)
54HYDRAULICPUMPE46050
