Ideal Filling:

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Set hydraulic unit (1) down on a horizontal surface (4).

Fig 1: Checking Fluid Level

Courtesy of BMW OF NORTH AMERICA, INC.

Damper (3) and valve (5) must not rest on surface.

Check distance (B) from middle of marking (2) to lower edge of hydraulic unit (1).

B = 45+/-1 mm

After correction, fluid level (2) must be in upper area (A) of marking (2).