I was driving the wife's car (E350 conv) the other day and I noticed on braking and accelerating a swishing liquid noise coming from the car around the door area. I assumed it was either a bottle of water laying around or possibly the fuel in the tank splashing about....well that's what it sounded like. Got the missus to take it to Mercedes and it turned out to be water in the doors. Apperentely its pretty common with these models. By the amount of other convertibles there for the same issue I suppose the techy wasn't making it up!
But how bizarre this happening in the first place. They managed to drain out the water by taking out some sort of plug from the door and lifting the rear of the car I think. The missus didn't hang around whilst they done the work so doesn't know exactly but the moral of the story is if your convertible sounds like you have a fish tank in the boot chances are you have water in your doors!!
But how bizarre this happening in the first place. They managed to drain out the water by taking out some sort of plug from the door and lifting the rear of the car I think. The missus didn't hang around whilst they done the work so doesn't know exactly but the moral of the story is if your convertible sounds like you have a fish tank in the boot chances are you have water in your doors!!
and the techy did comment that there was a lot of water in there. After it was done my missus did say how light the car felt whilst driving. 
