Water leak in driver footwell

[aliahmed13]

Afternoon folks

Whenever it rains heavily, I notice water in the driver's footwell of my 53 plate Yaris. The photos are taken after there was rain overnight and as you can see, there is a fair bit of water. I am struggling to get my head around where it's coming from. Any help/solutions would be greatly appreciated!

https://ibb.co/tDkVYTk

https://ibb.co/sjhp65F

[IllusionX]

Did you drive it in the rain or it sat overnight under the rain?

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[WeeYari]

Wow! That's a crazy amount of water. Good luck figuring that one out.

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[ex-x-fire]

Looks like the cowl drains get plugged up.
https://www.youtube.com/watch?v=Yk-SwvWxj6g

[aliahmed13]

@IllusionX

It was parked up overnight and was like that in the morning

@ex-x-fire

Cheers, i'll have a look!

[IllusionX]

@IllusionX

It was parked up overnight and was like that in the morning

@ex-x-fire

Cheers, i'll have a look!Perhaps some seal are not tight, like door seals or windshield is leaking.

I can't see how a missing drain plug would flood your cabin overnight.

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[dogsridewith]

OP: Which side is driver's side? Do HVAC box drain tube plug-ups always cause overflow onto right front side of the cabin floor? (Is anything up front different between left and right-hand drive Yarii except the steering wheel, glove boxes and passenger airbag location?)