1998 BMW 740 Repair Question
Topics covered: Thermostat, Tool, Water pump.
Mileage: 140,000 miles.
Mileage: 140,000 miles.
Asked on November 7, 2012
BMW 740 Thermostat Problem
Its al davison again quick question my friends 740 we replaced the thermostat the water pump and the four post sending unit on the pump every thing is fine no problems no cel but when you check for fault codes 8b comes up on the peake tool electric thermostat control final stage what does that mean how to fix thank you
Asked by al davisonAnswer
Replied on November 7, 2012
Use a real OEM thermostat or recheck the wiring from the temp sender all the way back to the E-box, it may be fried.
Replied on November 7, 2012
hi dr. it is a oem thermo ill check the wires and let you know thanks al
Replied on November 8, 2012
11.8 ohms of resistance at the connector of the Tstat
Replied on November 8, 2012
thank you dr. i will ceck that out and i will let you know what i find thank you for your time and trouble al