What causes there to be water in a car engine air filter?

umm i just recently changed my air filter in my 2003 saab 9-3 n the airfilter was a little wet. I didnt know what would cause this? i do have broken plastic on the front bottom of the car i didnt kno if it might be the water from the road or a lose connection somewhere? can someone help me?
What causes there to be water in a car engine air filter?
Most likely it is water that got sucked up during heavy rain. However, only the 2003 model year, the first year, there's a known problem with the SAI accumulating water and making your check engine light go on. If that light isn't on, you're golden, just replace the air filter.
What causes there to be water in a car engine air filter?
it was raining/ and or you went through a puddle,

and the intake sucked it up

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