E220 Estate, 1994
Rainwater leaks into the cargo area at the rear of the car when it is stationary (not on the move).
The main dealer has tried seven times to correct the problem, without success.
It appears to be getting in through the back door, only the carpet/sill area at the bottom of the door gets wet. All the door and window seals have been replaced, and the wiper motor and all other places where rainwater can get in have been re-sealed.
Has anyone else had this problem, or does anyone have the answer?