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The BMW Range
3 Series
E90, E91, E92, E93
Learning to use an E90
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<blockquote data-quote="astroboy" data-source="post: 554835" data-attributes="member: 4527"><p>With the engine shut off, whatever left cool of the cooling coil can still be salvage by activating the blower for further heat exchange effect to bring the cabin temperature down. Once the cooling coil is heated, I doubt your compressor will kick in without running the engine.. so the heat exchange can only be with the external cool air. Still, I don't like the idea of unnecessary current draw to my battery when the engine is not running.</p></blockquote><p></p>
[QUOTE="astroboy, post: 554835, member: 4527"] With the engine shut off, whatever left cool of the cooling coil can still be salvage by activating the blower for further heat exchange effect to bring the cabin temperature down. Once the cooling coil is heated, I doubt your compressor will kick in without running the engine.. so the heat exchange can only be with the external cool air. Still, I don't like the idea of unnecessary current draw to my battery when the engine is not running. [/QUOTE]
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The BMW Range
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Learning to use an E90
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