I just had a bad overheat yesterday on my 93 400SEL and today I replaced the thermostat which seemed to help the problem, but not the radiator light went out but the oil idiot light wont. I got down underneath and pulled off the connector and wire from the sender and then started it and the light is still on! Is there 2 senders for your oil pressure, one for the guage and one for the light? Or do I need to bring it in so they can reset the code with the computer? Any Ideas? This light got triggered by the overheat.