Cooper S Convertible (R57) L4-1.6L Turbo (N14) (2009)
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The hydraulic pump only operates during the convertible top movement. In the event of failure, emergency actuation is possible.
The hydraulic unit is installed in the rear left of the luggage compartment. The relays are also in the rear left of the luggage compartment.
Drive unit for lock and folding sunroof
An electric motor with transmission locks and unlocks the convertible top with cowl panel at the windshield frame. At the same time, this drive moves
the folding sun roof. The convertible top module (CVM) activates the drive.
The drive is arranged in the center. The gates on the right and left are moved via 2 coiled cables, thus driving the folding sun roof. When the folding sun
roof is open, the catches also open.
NOTE: The drive has an additional function.
When the convertible top is opened, the drive locks the stored convertible top. The purpose of this function is crash detent. In the event of a crash, the
stored convertible top cannot fold forwards.
The following other control modules are involved in the function of the convertible top:
KOMBI2: Additional instrument
The additional instrument (KOMBI2) delivers the outside temperature (bus signal).
The additional instrument displays the Check Control messages for the convertible top via the Check Control symbol.
FRM: Footwell Module
The footwell module (FRM) activates the front power windows. To open the convertible top, the side windows must be lowered (bus signal from CVM).
JBE: junction box electronics
The junction box electronics (JBE) deliver the signal as to whether the luggage compartment lid is closed (bus signal).
The distribution box in the junction box supplies the convertible top module (CVM) with terminal 30g.
In addition, the CVM is supplied with terminal 15 by the Car Access System (CAS). If, for example, the power supply from the junction box is
interrupted, adequate communication with the BMW diagnosis system is still possible.
CAS: Car Access System
The CAS is the master control module for the power windows.
When requested by the CVM, the CAS ensures that the side windows are lowered and/or raised. The CAS also prevents opening of the luggage
compartment lid and power window movement with the convertible top in its intermediate position.
