Is the rear wiper working, but not the rear wash ?.
When you press the wash button, can you hear the motor spinning ?.
My guess would be yes to both
.
If so, check that the rear washer supply pipe has not come apart.
It’s located under the bonnet, under the brake booster.
A number of members have had the same problem when the temperature drops.
The pipe freezes and pushes the joint apart.
If this is the case, re-attach the pipe and increase the strength of your washer fluid.
This is what you are looking
for.
Kindly provided by another member.
The washer pipe is the one in the centre of the close up shot.
