I recently bought a 90 960. When the weather changed into freezing cold a couple of weeks ago, the W/E and dashboard arrow lights suddenly started flashing when shifting from P to D. It seemed to work ok though, so I took the car for a short drive. It shifted normally, but the lights still flashed. Next morning the weather had changed, and the flashing lights disappeared. A few days later the same thing happened again.
Today the flashing lights are back , and the weather? –15° c. The car seems to lack power as well. Any suggestions?