BMW 730d Sunroof Drain Blockage — Water in Footwell
The E65/E66 panoramic sunroof drain channels run through the A-pillars and exit under the car. They block with debris and collapsed drain hoses, causing water to overflow into the cabin — typically in the front footwells. Electrical damage follows if left unchecked. Clear drains every autumn and spring.
Repair / Solution
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⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this BMW 7 Series 2002 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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