water leaking from sills

[Paul Chipperfield]

Any ideas please I have a 19 plate 430d M Sport convertible. recently noticed ( following heavy rain) water dripping at first then a steady flow from both sill at the rear with car parked facing up hill. Levered the under tray a bit with a screwdriver and it pored out for a good couple of hours. Some say could be blocked drain tubes. Do we know where they run to ?
Any thoughts wold be appreciated

[Touring442]

Warranty!

This is a known and never ending issue on both the 4 Series Convertible and the E93 3 Series before it. There is a known cure for it.

[Paul Chipperfield]

car is booked for Tuesday. Do you think they will know what to do or is there something (bulletin) that I can refer them to ?

[Touring442]

I don't alas; I know they leak water in for fun so it's not a rare problem.

[stevemcs]

We had one in a few weeks ago (we are not a BMW dealer) and the amount of water that was trapped filled a bucket. We took both undertrays off that run either side and cleaned out the drain holes, it took over 5 minutes for all of the water to run out.