I've replaced the oil pressure sensor but the coolant light keeps coming on. on 2003 BMW 325i

I cant figure out why the light keeps coming on even after the sensors have been replaced.

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1 answer
It may caused by a bad sensor in the coolant reservoir that tells the computer its low on coolant, this is easily replaced and isn't very expensive either, most people ignore it , but i think it's better to keep the system working good , just in case it really get low, it will keep you from ruining a good engine by running it hot, some of these sensors are also located around the thermostat housing.

Good luck and best regards!