When Working On Hydraulic System, Observe The Following

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After it has been removed, the convertible top must be safely set down or spread out.
The special tool must be used. Refer to 54 34... Special Tool: Lifting Gear E88 .

The universal lifter is absolutely required here. Refer to 54 34... Special Tool: Convertible Top Rest E88
When the hydraulic system is open (unscrewing of lines, topping up of fluid, etc.), always provide sufficient cloths to catch leak-off fluid.
Also provide an adherent protective cover to cover/protect fittings.

To prevent dirt from getting into the system, always fit openings of hydraulic components when removed with protective caps.
Hydraulic system must be at zero pressure.
Disconnect feed and return lines if possible at a later stage, when the convertible top is stowed and untensioned (check fluid, see also Emergency Actuation Of Convertible Top ).
Shortly before removing lines screw tank open and closed once.
Once the hydraulic system has been opened, first check the fluid level after completing the tasks before carrying out a function test.
After disconnecting the hydraulic lines from hydraulic components , do not move the convertible top if at all possible (fluid can escape from joints). Refer to 54 34 005 Removing And Installing/Replacing Hydraulic Control Unit For Convertible Top Drive , 54 34 006 Removing And Installing/Replacing Left Hydraulic Cylinder For Convertible Top Compartment Lid , 54 34 007 Removing And Installing/Replacing Right Hydraulic Cylinder For Convertible Top Compartment Lid , 54 34 008 Removing And Installing/Replacing Hydraulic Cylinder For Left Clamping Bar , 54 34 009 Removing And Installing/Replacing Hydraulic Cylinder For Right Clamping Bar and 54 34 016 Removing And Installing/Replacing Left Or Right Hydraulic Cylinder For Convertible Top
Piston rods must not be damaged (e.g. scratches). Even paint mist and welding spots are harmful.
When working in the vicinity of hydraulic cylinders, cover the cylinders with suitable materials.
If the hydraulic control unit or the lines stay removed for an extended period of time, the bores on the hydraulic control unit and the hose connections must be sealed off (observe fitting instructions).