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BMW
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2004
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645Ci 2D Convertible, Standard
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Repair and Diagnosis
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Accessories & Equipment
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Gauges & Instrument Panels
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Head-Up Display - Overview
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Head-Up Display (HUD)
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Principle of Operation
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Switch-On Conditions
Switch-On Conditions
The conditions required to switch the head-up display on are:
Terminal 15 switched on
Button for switching head-up display on and off switched on