There is no steering pump as the Z4 uses electrically-assisted steering.
The power steering pump on a BMW Z4 is typically located on the front of the engine, near the serpentine belt. It is usually mounted on the driver's side, depending on the engine model. To access it, you may need to remove any covers or components obstructing the view. Always consult the vehicle's service manual for specific details related to your model year.
On my 54 reg, its the middle of the steering wheel.
There is no power steering fluid..........all electronic.
In the 2005 BMW Z4 2.2i SE, the power steering pump is located on the front passenger side of the engine, mounted to the engine block. It is driven by the serpentine belt, and you can typically access it by removing the engine cover and possibly the air intake components for better visibility and reach. Always ensure the vehicle is turned off and cooled down before attempting any inspection or maintenance.
There is something wrong with it and you need to take it to a BMW dealer. The EPS is not something you can fix yourself.
The 2003 BMW Z4 has 24 valves.
The 2004 BMW Z4 has 24 valves.
The 2012 BMW Z4 has 16 valves.
The 2013 BMW Z4 has 16 valves.
The 2011 BMW Z4 has 24 valves.
The 2010 BMW Z4 has 24 valves.
The 2014 BMW Z4 has 16 valves.