problems with my 93 325i

[Slvrr]

Hey guys I'm new here and just bought a 93 325i with 95k on it the car is in excellent shape however I drove it back from Houston where I bought it 2 days ago and now I'm having problems with the gauge cluster I think. I noticed the car was over heating so I pressure checked the cap and it was bad. But it never seemed to actually be overheating it was just in the red. Now when I get in and start the car it goes to red but doesn't show to be overheating so I stop reset the computer by turning vthe key three times and it goes back to wher it's supposed to be.Also the fuel gauge will not go over 3/4 tank even when full. Any ideas? New cluster or thermostate and the little fuel switches under the rear seat? Thanks guys

[Furious]

welcome first of all, second of all DO NOT DRIVE THE CAR WHEN THE NEEDLE HITS RED, fault or not.

just because the rad cap isnt overflowing doesnt mean that your not overheating. you probably have a stuck thermostat and the car isnt able to cycle the overheated coolant out.

please dont drive the car untill you get it resolved. you can potentially ruin your engine if you continue to drive it.
if its a fault in the cluster consider yourself lucky.

[Slvrr]

Make no mistake I don't drive it when its showing hot.However I do start it let it warm up when it shows hot I turn it off and reset the computer or trip it whatever and it goes right to the middle I'm guessing 180-190.