Hi GMG, just to clear up any confusion.

The dark coloured/dirty pump in the 'measurement photo' is the same dark coloured/dirty pump in the 'two pumps' photo and the 'nose to nose' photo. These three photos show the original pump from my 1994 +8 as fitted when it left the Factory. This pump has been re-built and is now back on the car.

1994 +8, BMW Calypso Red.
2002 4/4, 4 seater, BMW Calypso Red.
How do you open the boot?