On 25/10/2019 15:14, Michael wrote:
I have a 2014 iX35 and 2 years ago the rearview camera started to play up,
especially when it snowed or heavy rain, but most of the time it
functioned.

Intermittent faults are a bugger. If you had said "please investigate up
to a maximum of £1000" they would probably have done so, but of course
with no guarantee of finding the problem.