Z3 ELECTRO HYDRAULIC TOP COMPONENTS
The system components include:
•Electric motor/pump with reservoir
and relays,
•Hydraulic tubing,
•Hydraulic cylinder with piston,
•“Off tension” microswitch
•Console mounted switch
Located in the driver’s side B pillar, the
hydraulic piston connects to the body by
a clip and the top frame by a ball pin.
The electric motor/ hydraulic pump
assembly is in the left rear corner of the
trunk. The hydraulic tubing runs through
an opening in the trunk bulkhead to the
hydraulic piston.
The “see thru” reservoir of the pump has
“min/max” fill lines which allows quick visu-
al confirmation of the system fluid level.
Use hydraulic oil from kit P/N: 54 34 8 410
308.
Emergency Valve:The hydraulic unit has
an Emergency Valve located on its top sur-
face.
If the top can not be operated due to an elec-
trical or hydraulic fault, the valve is
unscrewed 1/2 turn allowing the top to be
raised manually.
Convertible Tops - 31
HYDRAULIC
FILLER PLUG
HYDRAULIC
HOSE ROUTING
RUBBER
ISOLATION
MOUNTS
AND
BRACKETS
“EMERGENCY”
VALVERESERVOIR
TRUNK MOUNTED
ELECTRIC MOTOR/
HYDRAULIC PUMP
FLEXIBLE
HYDRAULIC
TUBE
HYDRAULIC
CYLINDER/
PISTON
SYSTEM
CONNECTOR
OFF TENSION
MICROSWITCH
