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Thread: HVAC prbs
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Old 06-03-2012, 10:16 AM
645/333's Avatar
645/333 645/333 is offline
Location: uk
Join Date: Jun 2010
Posts: 1,623
Mein Auto: BMW 640i SE Convertible
Hi! when all of the lights are off have you tried to switch the blower on for example? It could be a faulty relay or a loose fuse as it appears to be a power issue!!!! even though the control unit has been replaced.

Always said I would go back to a 6 series
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