Thermostat and 3pin MFTS = low water temp at motorway

[huksa]

1. I don't think that any fan should come on until about 93 or 94 C, unless you turn the air conditioning on.

2. At 120 km/h in -7C weather, you are getting a significant cooling effect, so dropping to 84C on the climate control Ch.51 readout is perhaps not surprising.

3. IF you do not have the rubber boot over the F76 MFTS, all that cool air will cool the MFTS and the analogue gauge reading you get will be too low.

Click on the MFTS label in this hotlinked Engine Bay Device Map (all the other labels are live links too - for future reference):

Thank you.
I will check the MFTS soon. I don't have air guides to radiator, and that might add to my situation. Oh, I don't have undertray, either.

The fan shouldn't come on so early? It seems that the fan kicks in at around 88 - 89 and stops at 90. I never saw the Ch. 51 went above 90