5. Topping up/extracting fluid

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.

E46c: only when convertible top is stowed and convertible top compartment lid is closed. E52E85only with convertible top closed
E64 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.
Observe brief instructions.
Remove hydraulic unit without detaching lines.
Fluid is supplied with the repair kits (e.g. banjo bolts/seals, hoses, cylinders) and is available separately (refer to BMW Parts Department).
Pour in fluid with bottle through filler opening.
Hydraulic unit must be removed if overfilled. Allow fluid to escape through filler opening and collect.