GF77.30-P-0001SK Vario Roof (VD), Function

GF77.30-P-0001SK Vario Roof (VD), Function
- up to model year 08







Entire function of Vario roof system (VR)
The system allows automatically opening and closing of the Vario roof and the side windows.The function sequence is based on a electro-hydraulic combination.The Vario roof is actuated electrically and the opening and closing procedure is supported hydraulically.When opening, the side windows are opened first.Then the Vario roof is unlocked at the upper frame of the windshield and folded together toward the rear over the passenger compartment and deposited in the rear.When closing, the function sequence is performed in the opposite direction The Vario roof is folded out of the rear toward the front and locked in the upper frame of the windshield.Then the side windows are closed

Basically the two following actuation possibilities for the Vario roof (VR) system are differentiated:
^ Closing/opening Vario roof with Vario roof actuation switch (S84s1).

With the actuation request, the Vario roof can be opened and closed from the vehicle passenger compartment via the Vario roof actuation switch (S84s1).
^ Vario roof convenience opening/closing with transmitter key (A8/1) (with code (880a) Closing system with infrared remote control)

Since actuators with high switch-on currents are actuated for operation of the Vario roof, it is necessary for the power soft top control unit (N52) to actuate the actuators specified below with a time offset (80 ms).
The actuators to be considered are:
1. Soft top mechanism hydraulic unit (A7/5)
2. Left front power window motor (M10/3)
3. Right front power window motor (M10/4)
4. Left rear power window motor (M10/5)
5. Right rear power window motor (M10/6)

Decisively participating control unit, actuators, switches, relay and sensors for Vario roof switch (VR)

Control units :
^ Power soft top control unit (N52)
^ Overhead control panel control unit (N70)
^ Driver-side SAM control unit with fuse and relay module (N10/1)
^ Rear SAM control unit with fuse and relay module (N10/2)
^ Upper control panel control unit (N72/1)
^ Central gateway control unit (N93)
^ Instrument cluster (A1)
^ Left door control unit (N69/1)
^ Right door control unit (N69/2)
^ EIS [EZS] control unit (N73)

Actuators:
^ Left front power window motor (M10/3)
^ Right front power window motor (M10/4)
^ Left rear power window motor (M10/5)
^ Right rear power window motor (M10/6)
^ Soft top mechanism hydraulic unit (A7/5)

Switches, relays and sensors:
^ Vario roof "locked" limit switch (right rotary tumbler) (S69/3)
^ Trunk partition "closed" limit switch (S69/10)
^ Vario roof "open/lowered" limit switch (S69/11)
^ Tubular frame "locked" limit switch (S118)
^ Tubular frame "open" limit switch (S119)
^ Open Vario roof relay (A7/5k1)
^ Close Vario roof relay (A7/5k2)
^ Temperature sensor (A7/5b1)