1986 4000S, Oil Pressure & Temperature Gauges

[Peter Biernacki <pbiernac@ea.oac.uci.edu>]

The car in question is a manual 1986 4000S with a 1.8L 4 cylinder
engine (7/85 production date).

The Oil Pressure gauge always seems to be pegging the dial on the max end.
Is this suppossed to be the case?  I believe the range is 0-5 bar.  It
should seems strange.  Also the Oil Temperature gauge never has shown a
temp above about 90 C, and almost always sits at what appears to be
70, though the gauge ranges from 60 - 170. Is there a different Audi/VDO
gauge that can be swapped that shows more accurately the engine temp (i.e.
maxes out at say 130)?

Thanks,

Peter