Rabbit L5-2.5L (CBUA) (2008)
Identifying Software level
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Connect Midtronics InCharge 940 (INC 940) tester/charger to vehicle's battery.
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Remove key from ignition.
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Press "power" knob on navigation unit.
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Eject any disc in navigation unit by using eject button.
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For software version up to 47, press "Accept" button.
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If software version is 48 or greater, continue.
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Press "Navigation" button.