Kia Troubleshooting Questions? Ask a Mechanic
Hi, I'm Greg (Indy-Tech).Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.Rgds Greg.
With your garden hose pour a lot of water on the vent intake just below the front windscreen .
and have a second person sit on the passengers side and check under the front dash for water leak, as its known for this model to have a leak from the heater box seal behind the glove box where the air intake goes to the heater box. .
Second open the sunroof and with a litter bottle od water pour carefully down the drainage holes and just behind the front wheels you should see water drain onto the road ,no water clean the drainage hose .
Please check this then get back to me if needed.
Need further assistance with this issue then please get back to me with the reply box below .After rating there is no further cost for any other question relating this issue .Kind regards Greg