So many people focus so much on the exterior of their cars that they often forget the interior. The interior is where you spend your time, so make sure it gets the attention it deserves. If you neglect it, it will sustain damage and show it just as sure as your car's exterior will if you neglected it. Just rent a carthat has been neglected and see how disappointed you are with the rental company.
Car interior detailing is an ongoing process. You begin with the big stuff and move onto the fine details, until your car's interior looks brand new. How much work you have to put into it will depend on how dirty or cluttered it is and how good you want it to look.
These car interior detailing tips will take you progressively deeper into the cleaning process. You want to start with the large details and move on to the smaller ones. After you do the big job the first time to get it perfect, then all you have to do is maintain your results.
First, if you have clutter, take care of that. This could be everything from fast food wrappers and real trash to just random clutter. If you don't need it in your car, throw it away or store it somewhere more appropriate. It's easy to fill your car with clutter and to accept it, but this detracts from its aesthetic appeal.
Next, you want to use a quality shop vac to vacuum out the interior of your car. This can sometimes circulate some dirt even as it cleans, so you want to do this before you get into cleaning surfaces, or intensive spot cleaning. Get all those elusive areas, including under floor mats and under seats. If you're going to do auto upholstery cleaning,then take the time to do it right.
Wash the windows. Wipe down the entire interior with a quality product suited to the materials you are cleaning. The door jambs are not to be overlooked. They can accumulate a fair amount of dirt. You also don't want to leave anything wet after you clean it.
Cleaning your seats will depend on the material. Leather deserves special leather cleaning products, while upholstery and carpets necessitate upholstery cleaner. Depending on the level of dirt you may have to repeat this step.
Car interior detailing is about start big and moving to the details. You want to work towards perfection. Now you know how to do just that.
(from: http://www.myautodetailingtips.com/car-interior-detailing.html)
