E46Fanatics - View Single Post - Need help troubleshooting thermostat error

40mikemike · 10-04-2012, 10:12 PM

Hey Guys,
New M3 owner here. When I took the car in for the pre-sale inspection, the DME threw (105) 69 Engine Temperature Signal Implausible (1x; Not
Present). I was told by the tech there that the thermostat needs to be replaced.
I took possession of the car today and even after driving 30 miles on the freeway, the temperature gauge needle stayed pegged in the middle. No sign of over-heating, is that possible with a stat failure

What do you guys think could be the problem? Any ideas on troubleshooting this?

10-04-2012, 10:12 PM	#1
40mikemike Registered User Join Date: Oct 2012 Location: San Diego Posts: 6 My Ride: 2003 M3 View My Garage	Need help troubleshooting thermostat error Hey Guys, New M3 owner here. When I took the car in for the pre-sale inspection, the DME threw (105) 69 Engine Temperature Signal Implausible (1x; Not Present). I was told by the tech there that the thermostat needs to be replaced. I took possession of the car today and even after driving 30 miles on the freeway, the temperature gauge needle stayed pegged in the middle. No sign of over-heating, is that possible with a stat failure What do you guys think could be the problem? Any ideas on troubleshooting this?