Engine Coolant Level Sensor. 1995 BMW 530i Base Sedan 4-Door 3.0L 2997CC V8 GAS DOHC Naturally Aspirated. 1995 BMW 530i Base Wagon 4-Door 3.0L 2997CC V8 GAS DOHC Naturally Aspirated. 1995 BMW 540i Base Sedan 4-Door 4.0L 3982CC V8 GAS DOHC Naturally Aspirated.