54 34 503 Removing and installing/replacing hydraulic valve (solenoid valve)

WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks

Remove LUGGAGE COMPARTMENT FLOOR TRIM PANEL

IMPORTANT: Hydraulic fluid may emerge from the open connections on the hydraulic unit.
Protect components and work area with suitable materials (e.g. cloths).
Make sure that dirt cannot get into the hydraulic circuit.
Follow REPAIR INSTRUCTIONS for hydraulic system.
Do not fit hydraulic lines in kinked, crushed or transposed condition.

Release screws (1).

Tightening torque 54 37 09AZ .

Remove battery rollover protection (2).

Remove insulating mat (3).

Fig 1: Identifying Battery Rollover Protection And Insulating Mat

Courtesy of BMW OF NORTH AMERICA, INC.

Overview, hydraulic valves F1, F2 and F3:

Fig 2: Overview Of Hydraulic Valves F1, F2 And F3

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Hydraulic unit must be held in the vertical position, otherwise fluid will escape.
Change shown on hydraulic valve F2. Analogous procedure for hydraulic valve F1 and F3.
When removing several hydraulic valves, mark the plugs at the respective slots.
Unfasten plug connection (1) and disconnect.
Release screws.
Tightening torque 54 37 15AZ .
Detach hydraulic valve.

IMPORTANT: Protect exposed bores against dirt contamination.
Do not mix up plug connections.

Check FLUID LEVEL or top up if necessary.

Check function.

Fully open and close convertible top a minimum of 3 times in order to bleed the hydraulic system.