How do you remove a water pump from a bmw 328i

Very tricky there what your asking you need to remove alot of parts to get it done but its possible.
You must remove the radiator than the engine plastic cover than remove all the belts and everything in the way. Along with being able to remove the reverse threaded fan clutch which you need a special tool to hold it while you undue the 22mm or 32mm bolt from the fan clutch bolt than you remove all the water pump bolts good luck