MRW Posted May 2, 2020 Share Posted May 2, 2020 Hi All, This old girl is new to me. All was going well with the water temperature gauge but now it's dead. The sensor for the fans works fine. I think I've located the correct sensor G63 sensor, should i just swap it out? whats the best make to get and where from. Recommendations welcome Cheers Mark Quote Link to comment Share on other sites More sharing options...
Steve Q Posted May 2, 2020 Share Posted May 2, 2020 Hi Mark, you have 2 coolant temperature sensors in your vehicle. One sends its signal to the ECU for proper fuel trim. The other one (which is what you need) sends its reading to 2 places. One place is your gauge, the other place is your radiator fan. Replace it quickly, since failure of one function typically signifies the impending failure of the other. It is part # W0133-1619933 Any number of suppliers have it. Should be around £30-£40 if memory serves correctly. It's hard to see, but your looking for a big brass nut. It's about an inch in diameter, and it's actually a plug that screws into a black pipe coming off the back of your engine. The actual sensor is held in place by that nut and is all one piece. The sensor you need sticks into that pipe and monitors the water temp. Quote Link to comment Share on other sites More sharing options...
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