last week got all parts and managed to get everything back on.

it took time to decide if i wanted (and if it was required) to change the Pipe/Hose that goes from the Waterpump to the engine Block (p/n 11537555281), part #3 here RealOEM.com - Online BMW Parts Catalog

Some posts I found said that to remove such pipe I would need to remove the exhaust header (!!!!) ...so decided to wait until I could confirm that the pipe could be removed as it is; finally found a very detailed entry that indicated that it could be removed without taking the exhaust header.

Just to be sure, I decided to check if I could at least "see" and access the two bolts that attachs the pipe to the engine block. I decided to remove a plastic cover that goes in the bottom passenger side (right) section, just below the water pump.

After removing this piece --see picture below-- I was not only able to see the two bolts but also, it gave full access to the"back" of the water pump, this made the whole re-assembly process easier and faster (I should have removed this piece and recommend to remove it to anyone doing the WP). See piece #9 here RealOEM.com - Online BMW Parts Catalog



To remove the bolts, I used a flexible extension; the bolts are quite a bit difficult to access but managed to remove both. The pipe disconnected with just enough space from the exhaust header.



After I removed the Pipe, I compared the hose ends and definitely I'm glad I decided to replace; the hose was completely deformed and had lost any compression / form; this picture shows the new Pipe/Hose on the left and the old one at the right (see the difference in diameter)





After setting up this pipe, I just went ahead and assembled everything back. removing the radiator made a lot of difference as there was a lot of space to work. See below....



Cheers