XC70: Electrical Problems after leaking windscreen

[franciskingsmith]

Volvo XC70 2010, D5, SE Geartronic

Hello All

Thank you for letting me join this very informative forum. How I wish I'd known about it before....I am new here, and this is our first Volvo. I hope some kind soul out there may be able to help me?

Well - after the very dry summer I took my car on holiday to Slovenia where our 2010 D5 encountered very heavy rain one evening a couple of weeks ago.

Water must have poured in as the interior light was wet inside, water around the gear shift, and about 2 inches (to my absolute horror) was sitting in the drivers footwell. Via google and this forum I've now read about and seen all about the windscreen issue, of which I had little idea. I bought the car in 2020 from a volvo specialist on the Fylde. I asked them about leaks as a friend had mentioned something vague to me once, but they said the XC70's didn't suffer from it. This does not seem to be true.

Now at present the car is drying and the carpets are out and I have removed most everything round the centre console with help from a local mechanic/ friend. A dehumidifier is inside, and we have been nervously waiting.

Today we plugged in the heater blower which had stopped working, and so had the heated seats. As of testing today they still don't work, though the blower we tested with 12v directly and it does spin. The controls on the centre console display all light and seem to work (seats and fan speed etc), but don't actually do anything.

Unfortunately we do not have a VIDA system here but the local guy does have an expensive diagnostic tool that's coming out with 42 errors when we plug in to do with various circuits of the heater blower and the heated seats not working.

Does anybody have any advice on what to do with this? I've checked the 40 Amp fuse for the blower and sadly it's not that.

To get to this stage, I think I made a fundamental error in starting the car and driving it to get it under shelter in the storm, as I've probably put voltage through everything when stuff was still wet.

I don't even know where the ECU is and wonder if it's fried.

Sad and scary times.