Water ingress

[Paul M benz]

CLA 220 shooting brake , 2016 , water i mean a lot of water behind passenger seat in the footwell, only had the car 10 months bought from Marshall Mercedes Blackpool, hopefully under warranty, its going in next week , anybody got any ideas what expect.

 

[robin.large]

Unless you have been driving through a river or deep water then it's leaking in from either boot, bonnet or sunroof.
Blocked drain tubes, sunroof is usual culprit and I doubt that it would be under any warranty.

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[sonic]

I garage my car each night, but I had to leave it out for 4 weeks when we were have a new kitchen fitted.
When I washed it I was amazed just how much foliage had built up around the drains in front of the screen.

 

[DREAMER NO2]

Rear window seals along with tailgate seal .