My first thought is that you have an electrical problem made worse by extreme cold. The guages are all electric, so if they all read zero, I'd bet they have no power, due to a bad fuse or loose connection.

If the temp and fuel gauges also read zero, it's most likely the fuse. If the guage now pops up to 3 when you turn the ignition on, it's possible the sender wire is off and grounded on the block or head, too. Otherwise, it's a cluster problem.

You need to get a mechanical gauge on it and verify that you DO have adequate oil pressure before you drive it!

It's also possible that you have fairly heavy oil in it -- this will take longer to pump up to pressure than thin oil when it's very cold, but it should still read after only a few seconds.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!