I think the pre conditioning heater is for markets where they have an auxiliary heater fitted independent of the engine. At least this is what I've been told. I asked a similar question. On some of the BMW Remote applications I understand you can honk the horn and flash the lights. On mine you can only flash the lights which is a pity because if you are in the middle of a huge car park I'm thinking honking the horn is more helpful than being able to flash the lights?
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