Footboard Rust Issue

[pwuser14958616851]

I have a Corolla Grande 2016 model and its body is clean when I got it full serviced. But since the past few months, I’ve been noticing the footboards of both sides have started rusting. The marks are all over the footboard causing the paint to corrode.

Can anyone please guide why is it so as the rest of the car is perfectly fine only the footboards are corroding?

And also if there’s a better solution to fix this permanently?

Your suggestions would be highly appreciated.

TIA

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[dayrider]

Had it been left parked in water or driven through water frequently

[MBILALNAWAZ]

Where do you use this car?
Talk to some professional denter/painter. Ask him to thoroughly inspect the car for rust including the floor pans and under carriage and to clean and repair all the rusted panels (it might involve cutting and welding based on the extent of the damage) then spray the whole under carriage with rubberized undercoating. Supervise the work yourself as this is quite time consuming and laborious job which generally the denter/painter are not willing to do in detail. Rust is like a cancer. If not treated properly it will eat through the metal.
Word of Caution: Don't spray undercoat over a rusted panel, it will make things worse.

[pwuser14958616851]

Thanks for guiding.

The car has been used within Rawalpindi / Islamabad. Previously it was in Multan

[MBILALNAWAZ]

Try to wash your car after rain and make sure it is thoroughly dried before parking in garage. Moreover if you use it on roads which have overflowing drains try to wash it every few days. Speaking from personal experience, drain water causes crazy rust.