I have a 1991 190e 4 cylinder with the same problem - in cold weather the engine does not warm up. I know that I have a head gasket leak due to oil in coolant. I changed the thermostat but no improvement. I suspect the head gasket leak somehow affects the working of the thermostat or circulation of the coolant.
A snowmobile can be driven off-road in the winter.
It is important if where you are living has a long winter or summer, but I always used Castrol Edge 10w60 Sinthetic.
winter
The summer nights are shorter while the winter nights are longer.
The nights are longer in the winter solstice.
no
W - Winter driving / slows down the RPM's S - Sport driving / widens the shift pattern and holds the gear longer before shifting
the night is longer in summer than winter
Yes. it might be, i am unsure, never driven it myself
It should not. Summer has longer periods of sunlight. Winter has longer nights. Maybe its time to move out of Siberia.
All cars can be driven without a thermostat. The thermostat is used to heat the car in winter by forcing the water temperature up.
In any one place, every object has a longer shadow in winter than it has in summer. That fact is an important clue to the reasons for winter and summer.