Driver assist not working: condensation in windscreen panel

[Billy_Whizzzz]

G31 Driver assist not working - windscreen module has condensation in causing error message - any thoughts on causes and how to rectify?

[Tony B2]

My guess is moisture in the atmosphere....;-)

Sarciness apart, I have recently had exactly the same problem with my Porsche. Visible condensation inside the unit, resulting in no speed limit sign recognition and no dynamic high beam operation.

These German cars are not very well made are they.

And our climate is absolutely crap, due to Brexit apparently.

I have resorted to leaving one of those moisture absorbing thingies in the Porsche and so far so good...

[Billy_Whizzzz]

Ha well yes, I know about moisture - more, that’s a sealed area in theory. Car is dry otherwise…

[sortedcossie]

This happened once to me last November, that the morning in question the whole inside of the screen was soaked, like the carpets had been wet overnight but they weren't. Some kind off odd unusual atmospheric event. Had the heater on full de-mist for screen all the way to work (11 miles) with air con on and it triggered that warning half way. Got to work, parked it for an hour and when I went back to it the error had gone.

When I first looked when arriving at work there was light mist in the aperture. I don't think they are 100% sealed from inside.