Examine your ground cables and your battery cables carefully, don't just look touch/jiggle them to make sure they are fully intact. Make sure you have lots of light to work with. If necessary, use an inspection mirror inside the dash.

I had a similar problem with a Volvo 700 series and it was a major ground strap that had somehow cracked or been slit almost all the way through. It would be fine for days or weeks then one major road bump and I would lose electricals.

Huge fun at -20C in the Canadian winter....

Good luck with it.

__________________


Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22