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      03-25-2011, 07:21 AM   #4
jannisa
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Drives: Z4 Sdrive35i
Join Date: Jun 2009
Location: Greece

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This is not the hard part. The difficulty is that on the Z4 the tunnel is just too tight. On the 335 it practically passes through by itself. Leading the cable from inside the drivers side into the glovebox is a 2 min job but you need a lot more time and patience to pass it from the ecu box into the cabin. Been there done that.
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