heated rear window barely works but the mirrors work fine

Hi,

my 2006 C3 VTR has the issue that the heated rear window barely works, after quite some time only the sides of the window become clear, also after 10 minutes the window heating just stoped and i have to press the button again.

The mirrors ( which are also heated and work with the same button ) work fine.

Does anyone know what might be the issue or what i can do to diagnose the problem a bit better?

Hello
Firstly sorry to hear you are having trouble with your Citroen.
The ten minute timer is a safety procedure to stop energy draw from battery.
The barely working, all lines working but just not clearing efficiently. This points to either the power supply side, passenger or earth side drivers.

Bad earth point can be either the connector at the window or earth point, which is near rear lights for all rear lights and rear wiper motor.