Guys, Need help. And I have gone through every bit of search and posts before I am requesting this.
My 03 s500 had water all in the driver side on the floor travelling to the rear seat during rain.
I have already checked the cowl on the passenger side. My car is LHD. and I have already cleaned and checked all 4 of the sunroof drains.
there is no blockage there and water is draining through them.
I have also checked the two drains at intersection of driver/ passenger front doors and where the hood meets them. This is to the far right and left of the wind screen locations at the bottom end.

So at this point, even after cleaning all these water is still coming in to the driver side floor and I'm at loss of what other locations I need to check for clogging...

thanks in advance as always.

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