34
Body
System control unit
Operation of the CSC roof is a complex interaction of
roof hydraulics and roof sensors. The whole
movement process of the roof except for the ESS
module is carried out by 8 hydraulic cylinders as
described that are operated in pairs by a hydraulic
unit. They are operated via three solenoid valves and
several mechanical valves in the hydraulic unitvalve
block.
To allow the current positions of all moved
components to be monitored by the roof control unit,
the roof system has 12 Hall sensors. A microswitch in
the boot checks the correct position of the luggage
compartment cover.
A temperature sensor on the hydraulic pump
monitors the temperature of the hydraulic fluid.
Legend
Hydraulic cylinders:
1
in left-hand main hinge
2 in left-hand roof side member
3 in left-hand boot lid hinge
4 in left-hand boot lid mounting frame
5 in right-hand main hinge
6 in right-hand roof side member
7 in right-hand boot lid hinge
8 in right-hand boot lid mounting frame
a Sunroof module
b M-segment
c C-segment
d Roof side member
e Boot
lid
f Roof side member flap
g Convertible roof actuation control unit
h Hydraulic unit
i
Luggage compartment cover
S355_089
Right-hand side of car
Left-hand side of car
1
2
3
4
Sensors
Actuators
Hydraulic line
5
6
7
8
a
b
c
d
e
f
g
h
i
You will find detailed information on the Eos onboard supply and electrics in self-study programme
SSP 379 “EOS 2006 – Electrical System”.
