95 E420, Oil Pessure Gauge, Ground Problem?

Hi All,

Just a couple of things left to bring the '95 E420 I bought recently to top form. The oil pressure gauge is pegged... even when the wire is disconnected from the sending unit. From what I've read here, this indicates that the gauge is grounded out?

The only other clue that I have is that the lights on the left side of the cluster (oil level and coolant level) do not light with the key in the on position.

If someone could give me an idea where to start, I would be very greatful.

BTW, I have become addicted to this forum. Very enjoyable and informative!

Best Regards,

Steve Schwegler