Hydraulic System, Filling and Bleeding

Electric/Hydraulic Convertible Top

Hydraulic System, Filling and Bleeding

When hydraulic pump is overloaded, a thermo fuse interrupts circuit and system is switched off up to a maximum of 35 seconds. After that, the system is functionally ready again.

Behind a rubber cover of left trim in luggage compartment, a toggle handle is installed on the hydraulic unit. By turning toggle toward left, the system becomes without pressure and convertible top can be operated manually.

Filling

• Electric-/hydraulic convertible top pertains to a closed hydraulic system. As a rule, a filling is only required after opening the hydraulic circuit (e.g. after replacing parts).

• Due to the lift and displacement effects of the hydraulic piston rods, hydraulic oil level must only be determined when convertible top is open.

CAUTION!
Do not fill system above "Max" marking.

Otherwise the pressure in the system could grow so large that damage cannot be prevented.

- Remove left luggage compartment trim.

- To fill, convertible top must be opened, the actual oil level can only be determined when in an opened state.

- Unscrew oil filler plug - 1 -.





- Oil for convertible top hydraulics: (G 002 00).

- Top off hydraulic oil only until oil level is between "Min " and "Max" marking - 2 -.

- Use a fill container for filling the hydraulic oil.

- Fill container must only be used exclusively for this purpose in order to prevent hydraulic oil impurities by other oils.

- Tighten oil filler plug - 1 - (5 Nm).

Bleeding

Hydraulic system is self-bleeding. System is bled after several operations.

- Unscrew oil filler plug - 1 -.





- Switch ignition on and off again, then leave key inserted in ignition lock and in the on position.

- Operate convertible top switch and open and close convertible top 4 to 5 times.

- The system is bled automatically by opening and closing several times.

- Convertible top must be able to be opened and closed smoothly and without hitching.

- With convertible top open, oil level must be located between " Min" and "Max" marking - 2 -, correct if necessary.

- Tighten oil filler plug - 1 - (5 Nm).