1997 S500 Code Scanner

[bolomiester]

I just bought a 1997 S500, black on black. Very nice body paint and interior, but has several dash lights on, outside light (should be easy to find and replace whatever bulb is burnt out), SRS, ABS/EPS. Plus the oil pressure gauge shows zero when the car is cruising. When idling the gauge will show about 2 bars, then begin to rise as the engine speed increases. Just at the point when it would hit the top, 3, it drops to zero. I'm not too concerned as I'd been test driving the car for an hour before I noticed it and it ran perfectly, no engine noise, overheating or bad smells.

Anyway, my first thought is to replacing the oil pressure sending unit. Are the oil pressure gauges known to be a problem on these cars?

Can I use my OBD2 scanner with ths car, and will it read the codes for whatever is causing the SRS, ABS/EPS lights to be on.

Finally, where can I find a list of this car's codes?

Thanks, owning this scares me a bit as I know from reading the forum that it's a complex beast. My good old '89 300se is so reliable I hate to sell it but there's only room for so many cars in my life. ;-)