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It should be fine, I did it a few times in winter with longer stops. 15 minutes is barely enough time to drop much if she had it up to temperature.
An oil pan heater is not needed with 5w and 0w oils. I did hook up a coolant heater but it complained about plausibility of the intake, ambient, and coolant temp sensors.... Duh but the ECU thinks this can't be true that the engine is warm when it has been off for hours. I gave up, but i use it to speed up warm up (2x 12v coolant gps at 20amps each approximately, like my vw tdi had factory)
One key possible issue, the regen for the dpf may be a problem if she doesn't drive it with coolant temp above 75C for more than a while. 35d might need a longer 30 minute drive every other week or so. And make sure the thermostat is working ok... you can access coolant temperature by the hidden menu or using an obd2 app like torque. Stupid bmw without temp gauges!
It should be able to hit at least 75c and stay around 80 or higher when idling. If it's low you get dpf regen issues
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06-06-2017, 01:43 PM
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