coolant flush

[blingsta]

hi all

i want to do a coolant flush...  whats best way? - rad bottom hose or the aux water pump near the sump?

https://www.myfastgti.com/threads/coolant-flush-diy.17420/

would the aux water pump be ok to flush from?

[GVK]

Can't see a problem doing it from aux pump

[blingsta]

Would that empty the whole system?  Is it the same as doing it from rad bottom hose?

[GVK]

It's as low a point in the coolant system so can't see a problem in doing it from there - probably easier than getting the bottom hose off.

[blingsta]

Yes it is 

i'll try it and see what happens 

thanks for reply

[blingsta]

Just a quick update .

i managed to flush the cooling system from the lowest part - (aux pump) which was sooooo much easier than getting that rad bottom hose off !! 

anyways..   all flushed n cleeeean now 

[Valztattmk5]

Hey ! Just done a coolant change on mk5 1.9 tdi, undone the bottom rad hose and maybe 2/3 litres off old coolant came out , I was expecting 8 litres ? I’m guessing that’s not a complete flush then and the remaining 5 ish litres would be sitting in the engine??? Any help would be much appreciated