VW Polo temperature sensor

[derekpara]

X reg VW Polo 1.4 petrol. I want to change the temp. sensor fitted into side of radiator. Haynes manual tells me to get under car and undo bottom hose to drain rad below required level. Problem is the old para is not very mobile now so can I simply gently unscrew sensor without getting under, allow coolant to drain down, fit new sensor then top up with fresh coolant ?

[Nkakamasembe]

Assuming you can take out of your all that needs to be removed to get access to the switch why not, by the way and remembering later how it all refits in place.
Un screwing from under minimises the chance of creating new problems.

[hughjass]

yes

[derekpara]

Thanks, both.

D