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Old 08-01-2011, 02:20 PM
LandYaghtLover's Avatar
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Location: Green Bay, WI
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W126 moonroof leak

The car is always garaged, so the leak may be worse than I think. Usually I only noticed water after a car wash. It travels down the outside of the a-pillar. It was never very bad, but as of late I found water in the small items holder and my winter matts were holding water.

I did check for debris blocking the drain tube. its clear. I even ran a wire down it to check or blockage. I followed that by some water and all appeared well.

I suspect that the tube may have a breach or is not properly secured to the drain outlet. So my main question is how to get to the tube. What interior parts have to come out and how? I would hate to damage anything.

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1992 750il / 17k miles - project car
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Old 08-01-2011, 02:25 PM
compu_85's Avatar
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I'd think the headliner would have to come out.

I'd have a helper spray the car with a hose in various areas until you see where the leak starts. You might find out it's not what you think... like I did

-J
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1991 350SDL. 230,000 miles (new motor @ 150,000).

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Old 08-01-2011, 02:36 PM
LandYaghtLover's Avatar
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Ya, I figure most of the headliner will have to be dropped. But I have no clue as to how its done. I have pulled the c-pillar covers off in the back, but nothing up front.

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