floodimg on passenger floor after rain

where do I go to have the head liner lowered to check hoses that drain water from sun roof

My car has 189000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello. Depending on where the leak is coming from will determine who is best served to complete these repairs. If you have an AC system or cooling system component that is leaking, one of our mobile mechanics can complete an inspection to determine where the leak is coming from; then recommend the right replacement or repairs. If it’s an interior or weather stripping issue, it might be better for you to search for a local interior repair / body shop that can complete this service.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

That`s more likely to be rainwater seeping past bad window seals, bad sunroof weatherstripping or even leaking in from the doors. Water can get into the door panels, and should drain out onto the road — but the doors could leak water into the cabin if the drain holes become blocked with debris.
USUAL CAUSE

The heater core is heated by the engine coolant. Air is then blown over the heater core, by the blower motor when the heater is on, to heat the passenger compartment. If this core develops a leak, it will usually leak into the passenger compartment floorboard.

If water leaks in your car when it rains, it could be from damaged or loose weatherstripping. Weatherstripping can tear and deteriorate over time, but it can also break. If for example you locked your keys in your car and break in with a wedge and metal rod, the weatherstripping can get damaged in the process.
Just patch the cracks with hydraulic cement or an epoxy sealer and you`re good to go. However, if your foundation has multiple large cracks, you might have a slab leak, which means you`ll need to contact a plumber for further investigation.
For most floors, condensation is the main reason for the sweating, especially in warm weather. When warm humid air from outside comes into contact with the cold concrete the air rapidly cools and condenses on the surface causing the wetness.
In general there are several possible causes of water ingress to a foot well, from a damaged or deformed door seal to a blocked air-conditioning drain hose or damaged heat exchanger. We have experienced some fairly extreme weather recently so driving rain or surface water penetrating a door seal is possible.
A few drops of water leaking from underneath your car is most often a normal occurrence. When it`s uncomfortable outside and you have the A/C on full blast to keep you from melting into a puddle on the sidewalk, your cooling system is working harder than normal.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

I just replaced the front passenger window regulator and motor and it works but only when i am using the rear passenger switch
ANSWER : Your Audi uses a window control module to operate the windows. The switches send a command to the module, and the module sends the power to the window motors. I’ve seen the modules do some screwy things, especially when the battery voltage gets low, but I wouldn’t run out and buy a module just yet. It may be possible to communicate with it with the right software and there might be some re-set that can be done. If you contact Your Mechanic, they can send a technician to your home or office to check out your spooky windows and tell you whether you need a new module or something else.

2012 Passat with a small water leak on the floor of the passenger side (back seat).
ANSWER : Hello, thank you for writing in. The best way to figure out where the leak is coming from is to replicate it. Due to the wet conditions in your area, the water may be coming in through a window seal or door seal. It can also get in through the bottom of the vehicle if water is being splashed from the bottom. Wait for a dry day and grab the hose to do some testing. Spray water from the bottom first, as it will decrease the chance of confusing your test results. If you can not get water to leak into the cab from the bottom, you should spray it from the top. There are drains that run along the roof of the car which are designed to direct water to flow away from the windows and sunroof. These clog easily with dirt and debris. If you find these are clogged, you can use compressed air and water to help clean them out. Only further testing will tell. For more help finding the cause of the leak, contact our service department to schedule an appointment.

Leaking passenger floor board and windshield fogging.
ANSWER : It sounds like you have 2 different but related issues. If coolant leaked into the vehicle and you bypassed the heater core, then it sounds like the heater core is/was leaking and should be replaced. Water only leaking into the vehicle with the a/c on, would indicate the evaporator drain may be detached, clogged, or broken. The drain can be inspected/repaired while the heater core is replaced. Have a local repair shop or your dealer service department inspect/replace the heater core.

Airbag light indicates passenger sensor problem
ANSWER : The sensor for a passenger sitting in this seat is a common failure item yes. The unit is pretty expensive and the fabric of the seat cushion must be removed to access and replace this component unless a new and hopefully upgraded assembly is purchased from the manufacturer. This can be a dangerous situation for a passenger especially one that is not wearing a seat belt. I would suggest getting some help from a certified technician to diagnose this issue with your Air Bag Light so that it can be fixed safely and properly.

the back passenger floor gets wet nothing else, what is the cause and what to fix?
ANSWER : Hello. Thank you for writing in. The windows have drain tubes and holes that take trapped water from the windows and doors and channels it where it can drain. These drains can become clogged over time with dirt and debris. Once they become clogged the water overflows, or finds another pathway to drain. You will need to clean them out or have them replaced to stop the leaking. You can try to used a pressure washer, or compressed air to clear the passages. To help locate and possibly replace the drain tubes, you will want to find a diagram or repair manual. Find the clog in the tube or drain holes, or find where the drain may be damaged allowing water to flow where it shouldn’t, and take appropriate action.

Rain leaking into passenger’s floorboard – 1973 Pontiac Ventura
ANSWER : Hello there, thanks for writing in. It is not uncommon for older vehicles such as your 1973 Pontiac Ventura to have water leaks when it rains. This is usually due to the older style door and window seal material that was used in the 70s. The three most likely causes would be a window seal, door seal, or the door is not fitting properly. I’d recommend having a certified automotive technician, such as one from YourMechanic, diagnose this leak and make any repairs required.

I can’t roll the rear passenger window up from either the drivers side or the passenger side. Could it be the regulator rather than the switches?
ANSWER : Hi there. If you are hearing a clicking sound as the window is trying to roll up or down, then either the regulator motor is burned and needs replaced or the track that the window rides on is broken. If you need further assistance with your passenger window motor not working, then seek out a professional, such as one from Your Mechanic, to help you.

Rear passenger floor soaked
ANSWER : The water may have been blown into the door seal on the side of the car. If the wind and rain was from the side then it could blow in to the car without a real problem. I would check the door window and door seals for any cuts or tears in the seals. If you cannot find the problem then check the front floor to see if it also got wet. If it did then the water came in from the a/c air intake or cowl area and leaked onto the floor and into the back. If you have a sunroof then the drains may of been overwhelmed and the overflow got into the interior and leaked down. When it comes to water leaks it can get in a lot of places when the rain is driven by high winds like you had.