2. 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.

The UNIVERSAL LIFTER is absolutely required here.
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.
When opening the hydraulic system, make absolutely sure that no dirt, dust or chips can get into the hydraulic circuit.
Disconnect feed and return lines if possible at a later stage, when the convertible top is stowed and untensioned (check fluid, see also POINT 3 ).
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).
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 unit or the lines stay removed for an extended period of time, the bores on the hydraulic unit and the hose connections must be sealed off.