54 34 ... Topping up/extracting fluid, checking fluid level

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NOTE: No changing of the hydraulic fluid necessary.

The hydraulic fluid does not have to be changed because the system is filled with life-time fluid.
Only the approved hydraulic fluid may be used in the event of leaks.

NOTE: All hydraulic cylinders must be completely extended.
Support convertible top compartment lid in service position . See 51 00 ... Service position of convertible top compartment lid .

Fig 1: Identifying Convertible Top Compartment Lid

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Checking fluid level:

Unfasten screws.

Installation:

Replace Torx screws and insert with Loctite.

Unclip front cover (1) for hydraulic unit.

Fig 2: Uncliping Front Cover

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Fluid level must be within the markings (arrow) when the unit is horizontal.

Fig 3: Identifying Fluid Level Markings

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Topping up fluid:

Align hydraulic unit horizontally.

Open fluid filler plug.

Pour in required amount of fluid from fluid bottle.

Installation:

Check fluid level in the meantime.

Pour in hydraulic fluid only up to marking on fluid reservoir.

Fig 4: Identifying Fluid Level Markings

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Protect components and work area with suitable materials (e.g. cloths).

Extracting fluid:

Open fluid filler plug.

Tilt hydraulic unit and let fluid flow out or draw off with a suitable auxiliary apparatus.

Fig 5: Identifying Fluid Level Markings

Courtesy of BMW OF NORTH AMERICA, INC.