hi all
Does anyone have any advice or link to a video on how to change the water pump on an st150? Could do with knowing in advance what needs to be removed and what doesn't.
Many thanks

Did mine last year
It's a fiddly job, I removed the drivers headlight for better access.
Get photos of the routing of the aux belt before you start.

The tensioner is on a spring and easily pulled back. This would be a good time to replace the belt and tensioner if required.

The pump in mine was a bit of a pig to remove due to having a bit of sealant added to it
Clean the mating face as best you can. I added a wee smear of sealant as well.

It would also be a good time to change the thermostat. It's as much of a pain to do as the pump is but it will save you having to drain the coolant twice.