Checking Fluid Level In Hydraulic Control Unit:

Test Conditions:

Open trunk lid (by motor) once and then close again so as to bleed the system.

Open trunk lid again (by motor) and pull cover (3) at front to one side.

NOTE: The expansion rivets (1) are not released here. Make sure that the emergency release mechanism (2) is correctly fitted.

Fig 1: Identifying Expansion Rivets, Emergency Release Mechanism And Cover

Test Requirements:

Open trunk lid (by motor) once and then close again so as to bleed the system.

Open trunk lid again (by motor).

When the cylinder is fully extended (trunk lid open), the fluid level must be in area (A) of the marking (1) on the hydraulic control unit (2).

Fig 2: Opening Trunk Lid Again (By Motor)