So my car went in last Monday and they were really puzzled...they said they thought the passenger window was slightly mis-aligned, so they re-set that and said to see how it went. This is the following day:
So back in it went last Thursday. In this time they'd contacted BMW who apparently have no other reports of this issue, so this time, the technician mirrored the exact settings from the drivers door onto the passenger door, I guess to make sure it was all seated correctly. No further leaks, so I thought he'd cracked it. Until this morning! Much less water, but still present, so its going back! Earliest they have is 3 weeks away, so they're gonna get back to me tomorrow to see if it can be sooner.
When I opened the door to wipe it down, I noticed water under the rubber seal ontop of the tweeter casing:
So I'm gonna point that out to them. Whats frustrating with this is, that its not replicated with a hose!
The only difference is that I had the roof down yesterday for the first time since it was last in (we went away at the weekend on the train, so didnt use the car). Still, that shouldn't make it leak (unless its raining with the roof down!).
So because its intermittent, no replicatable with a hose, they cant test it, to check they've fixed it. Next visit will be attempt 3 and they're gonna keep it a few days.
I appreciate its a bugger to sort, but how many attempts at fixing are reasonable? This could go on for ages!
They've not replaced any seals yet, and I know people suggest lubricating it, but my take is there is a definate fault as it only happens on the passenger side.