How to Dry Wet Carpet
To dry wet carpet quickly, start by spreading towels over the area to soak up some of the excess moisture. Next, use a wet/dry vacuum or shop-vac to suck up as much of the remaining moisture as possible from the carpet fibers. Turn on any ceiling or household fans in the area to speed things along, and be sure to check the floor and carpet padding underneath the carpet to remove any lingering moisture!
Spread towels over the area of wet carpet. You'll then need to walk back and forth over the toweled area until the towels are completely saturated. Take those towels away and replace them with dry towels in the same area. Keep doing this until the area of the carpet is dry. You should still check underneath the carpet to make sure the carpet padding and the floor aren't sopping wet, as well. Vacuum the wet carpet. Do not do this with a regular home vacuum. You need a vacuum that is made to soak up water. Most vacuum cleaner sold for home use are for dry cleaning only and are extremely dangerous if used on wet carpets. Do not use your household vacuum cleaner unless it is approved for wet vacuuming. Vacuum the carpet with the wet vacuum cleaner until you get no more water. The wet vacuum cleaner removes water from the carpet itself, but it may not be able to remove it from the padding if the water has wicked through the carpet backing or soaked in under the edges. Keep an eye on the fill tank and make sure you dump it before hitting overflow. Depending on the amount of water in the carpet, you may have to dump the tank several times. Encourage the moisture to evaporate. You should use this along with the other two options because it takes some time to achieve. Grab some ceiling fans, hairdryers, household fans, even a dehumidifier, if you have one. Keep them pointed towards the moisture until the water begins to dry up. Again, you'll need to check underneath the carpet to make sure that the floor and carpet padding are not still sopping wet. Move furniture off the wet carpet. You want to do this so that you can lift up the carpet and check the pad and the floor underneath. It's important to remove the furniture as quickly as possible so that you can get started on the carpet. Leaving the furniture on the wet carpeting can damage both the furniture and the flooring. Remove as much of the water as possible. You probably won't be able to take up the entire floor, but you are going to have to check beneath the carpet, so keep that in mind. There are several different ways that you can get rid of the water. Rent a vacuum capable of removing water. Do not use a regular house vacuum, because a regular house vacuum can't handle vacuuming up water. Vacuum until you get no more water. Alternately you could rent a hot water extraction unit. Check with a local carpet cleaning company to see if you can rent theirs. This helps suck the water from the carpet, although again you will have to check beneath the water. Check the amount of water beneath the carpet. Getting rid of the water on top of the carpet is only the beginning. You'll need to get rid of the water along the floor and in the padding beneath the carpet, otherwise, the floor could buckle. Walk across the carpet. If there's a sopping/squishing sound when you do, then there's definitely still water beneath the carpet. Raise carpet off the floor. Start in a corner. Using pliers and a pair of work gloves, start separating the carpet from the padding and the floor. You're going to need to dry the floor beneath the carpet, otherwise, it could cause floor buckling. Avoid cutting the carpet, because it will be incredibly difficult to put back together attractively. You can also lift the carpet up pulling it off of the installation strips at one of the corners. You can also do this on a carpet's side or edge if you have a short side that is easy to access and work with. Fold the corner or side of the rug over so you can see the carpet pad. Blow air between carpet and padding. You're going to want to try to dry the pad without removing the carpet, especially if the pad seems to have only gotten a little damp and the subfloor seems dry. A dehumidifier in a closed room will pull out water fast, and can be rented from rental companies. Keep the corner or side of carpet that you have lifted raised and use a fan to blow air under the carpet unto the pad. Turn up the heat and open the windows to aid in the drying. Attach a vacuum hose (for vacuuming up wet things) to the exhaust of a vacuum then put the hose under the carpet, placing the carpet back over the hose. The hot air will cause the carpet to float over the pad and speed up the drying process. Call in the professionals. In the end, one of the best ways to deal with a wall-to-wall wet carpet is to call in someone who knows how to deal with it. It's important to do this as soon as possible so the company can salvage as much of the carpet, floor, and padding as possible. Make sure the service is guaranteed and look for a company that promises to dry the carpet, the pad, and the floor if necessary. Check with your homeowners or renters insurance. Depending on the cause of the wet carpet, it is possible your policy may cover the cost of the carpet cleaning. Don’t wait. Mold can grow within 24 hours and cause lots of problems. You'll need to dry the carpet in your car as quickly as possible. This will not only make sure that you avoid the mold, but it means that water won't get into electrical places that it shouldn't. Determine where the leak is coming from. Only dealing with the carpets in your car without locating and stopping the leak isn't going to do you much good. You'll have to keep on drying your carpets constantly. Remove as much water as possible. Use a shop vacuum that can remove water, or a dehumidifier (or both). These are easily rented. Use them to remove as much of the water as you can, especially from carpeting that can't be easily removed. Leave the dehumidifier in the car until the water seems to be gone. Make sure that you also sop up water with rags on the non-carpeted areas of the car. Check the padding under the carpeting. Water has a tendency to pool in the padding under the carpet. Not dealing with this can create mildew and mold problems. Always start by peeling up the carpet from a corner using pliers and work gloves. Avoid cutting the carpet as this will be incredibly difficult to fix later on. Remove all carpeting. It's really important that you remove the carpeting from the car, especially if the problem is an ongoing one. Peel it up carefully and put it somewhere that it can dry. Dry the carpeting separately. Once you've removed the carpeting from the car you have to work on drying it completely. You've already gotten the worst of the water out of it, but you need to make sure that it is completely dry otherwise mildew can form. Place towels over the carpeting and walk over them to get the water to soak up into the towels. Replace with fresh, dry towels as they get wet. Use a hairdryer and position it over the wet towels. Keep doing this until they are completely dry. Replace the carpets. Sometimes the absolute best thing you can do is replace the carpet, especially if you or anyone in your family is sensitive to mold. It doesn't take long for mold to grow and once it's there, it is very hard to get rid of. Discuss this with a professional before you do a complete overhaul of your car's carpeting because this is a drastic measure. Still, it is important to consider. 
Spread towels over the area of wet carpet. Vacuum the wet carpet. Encourage the moisture to evaporate. Move furniture off the wet carpet. Remove as much of the water as possible. Check the amount of water beneath the carpet. Raise carpet off the floor. Blow air between carpet and padding. Call in the professionals. Don’t wait. Determine where the leak is coming from. Remove as much water as possible. Check the padding under the carpeting. Remove all carpeting. Dry the carpeting separately. Replace the carpets. 