Hi,

Does anyone know how to drain the fluid from the tank. Currently its full of water.
I would prefer to drain the whole lot and fill with winter fluid and better cleaning fluid as water alone does not do a good job. Can pour in a bit of additive but it may not mix fully. However, also I do not want to unscrew or take apart anything to do this. Is it possible?

I would just use the washers until it's empty. Use them for a minute at a time and then let it cool for a minute and so on, they may not be designed for constant use.

There probably isn't a drain. You could remove the pump but getting to it etc is not worth the hassle.

As I thought, took another look there is very little access to do anything of the sort. Got confused, an old Merc I used to own had a tank/bottle that could be pulled out completely & not worth the hassle. Cheers Colin.