Convertible Top Hydraulic Control Unit: Service and Repair

54 34 005 - Removing and installing/replacing hydraulic control unit for Convertible top drive





Necessary preliminary tasks:
- Remove right wheel arch trim





When working on hydraulic system, observe the following:
- Hydraulic system must be at zero pressure.
- Disconnect supply and return lines as late as possible, with soft top stowed and in untensioned state.
- Shortly before removing lines screw tank on hydraulic control unit open and closed once.





Caution!
Hydraulic fluid may emerge from the disconnected lines and the open connections on the hydraulic control unit.
Protect components and work area with suitable materials (e.g. cloths).
Make sure that dirt cannot get into the hydraulic circuit.
Follow repair instructions for hydraulic system.
Do not fit hydraulic lines in kinked, crushed or transposed condition.





Unlock plug connections (1) and disconnect.
Disengage rubber tensioner (2).
Remove hydraulic control unit from side box.





Release screws (1) on retaining plate (2).
Detach hydraulic lines.

Installation:
Hydraulic lines and connections are marked with numbers to prevent mix-ups.
Check fluid level Testing and Inspection or top up if necessary.
Fully open and close soft top a minimum of 10 times in order to bleed the hydraulic system.