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      11-18-2012, 11:21 AM   #24
shane55
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Drives: BMW 330d M-Sport Auto
Join Date: Oct 2009
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The REST function incorporates an auxiliary coolant circulation pump located in the engine bay close to the passenger wheel well, when you hit the rest button and the appropriate parameters have been met this powers up and circulates coolant through the heater coil in the cabin, providing residual heat from the engine/coolant until it drops too cool or the battery voltage drops too low therefore I think simply coding the car and replacing "ALL" with the rest function won't be possible as you'll be missing the circulation pump!
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