GF77.30-P-0002KA | Soft top, function | 4.2.98 |
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A7/5b1 Overload protection thermocouple
A7/5k1 Relays A7/5m1 Engine A25s1 Soft top compartment cover closed limit switch A25s2 Soft top compartment cover locked limit switch A37 PSE control module (combined) B10/4b1 Temperature sensor (air conditioning) M10/5 Left rear power window motor M10/6 Right rear power window motor N52 Rollover bar (RB)/ soft top operation control module N70 Overhead control panel control module N72 Lower control panel control module N73 Electronic ignition / starter switch control module S21/1 Left front power window switch (front center console) |
S21/2 Front right power window switch, front of center console
S69/10 Luggage compartment cover closed limit switch S83 Roll bar manual operation switch S83/5 Roll bar (RB) retracted limit switch S83/6 Roll bar (RB) extended limit switch S84 Soft-top operation switch S84/5 Soft top compartment cover open limit switch S84/11 Soft top locked limit switch, left S84/13s1 Soft top closed limit switch S84/13s2 Soft top opened limit switch S84/15 Soft top bow bottom/top limit switch S84/16 Soft top bow locked limit switch |
X11/12 Test connector for soft-top control system (for performing actuations with the hand-held tester)
Y56/2 Soft top operation valve block (7 connections) Y56/2y1 Soft top open Y56/2y2 Soft top closed Y56/2y3 Soft top bow open Y56/2y4 Soft top bow closed Y56/2y5 Soft top compartment cover open Y56/2y6 Soft top bow lock open Y56/2y7 Soft top compartment cover lock open Y57 Roll bar (RB) valve block Y57/1 Roll bar (RB) deployment solenoid Y57y10 Rod-side valve Y57y11 Piston-side valve |
The soft top is opened and closed hydraulically
A pump in the roll bar (RB)/soft-top operation hydraulic unit (A7/5) generates the required operating pressure, and hydraulic cylinders actuate the mechanics of the soft top. There are a total of 7 hydraulic cylinders installed: Hydraulic cylinder - open/close soft top, left Hydraulic cylinder - open/close soft top, right Hydraulic cylinder - lift/lower soft top bow, left Hydraulic cylinder - lift/lower soft top bow, right Hydraulic cylinder - unlock/lock soft top bow Hydraulic cylinder - open/close soft top compartment cover Hydraulic cylinder - unlock/lock soft top compartment cover The soft-top system is controlled by the roll bar (RB)/soft-top operation control module (N52). It analyzes the positions of the limit and operating switches and correspondingly switches the solenoid valves (Y56/2y1.....Y56/y7) to actuate the hydraulic cylinders. |
The solenoid valves (Y56/2y1.....Y56/y7) are provided on the soft top operation valve block (7 connections) (Y56/2). The soft top is activated with the aid of the soft-top operation switch (S84), with the following functions being possible: ![]() ![]() ![]() Automatic extension/retraction of the roll bar The roll bar in the extended position impairs the movements of the soft top, and therefore the roll bar is first automatically retracted with every soft-top operation. At the end of each soft top opening and closing operation, the roll bar is always automatically moved into the position that it was in before the soft-top operation. |
Automatic opening/closing of the side windows Before the start of soft-top operation, the side windows are first completely opened to prevent damage to or jamming of the windows, or a collision with the linkage flaps. Remote trunk release The roll bar (RB)/soft-top operation control module (N52) cyclically supplies the information "SOFT TOP CLOSED", "SOFT TOP UNLOCKED" or "SOFT TOP OPEN" to the CAN databus. As soon as the message "SOFT TOP UNLOCKED" is received, the pneumatic system equipment (PSE), combi-functions (A37) no longer performs any remote trunk release operations. Chime from the overhead control panel control module (N70) ![]() |
overhead control panel control module (N70), which confirms the correct implementation. ![]() ![]() ![]() Monitoring of the soft-top functions The duration of the actuation time of the solenoid valves (except with stop function) until the expected positions of the limit switches have been reached is checked in order to monitor the movement sequence of the soft top for each movement stage. If the required time is exceeded, the sequence is interrupted and the error is stored in N52. After ignition "OFF" and "ON" again the sequence can be continued. |
Soft-top operation is blocked when
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(e.g. soft-top operation switch (S84) defective), ![]() ![]() |