Car textiles are the fabrics nobody thinks of as laundry, and they hold more than almost anything in a house. Seat covers, floor mats, cargo liners, and pet hammocks live in a hot sealed box, absorb spills, and go months or years without being cleaned. Most of them can be washed, and a few of them cannot.
Sort them before you start
Car textiles come in three groups and they need different handling.
Removable fabric seat covers, the aftermarket kind that slip over a seat, are usually polyester or a polyester and cotton blend and are generally machine washable.
Carpet floor mats, the fabric kind, are often washable, though the rubber or vinyl backing is the limiting factor rather than the carpet face.
Anything integral to the seat, meaning the original upholstery, is not laundry. That is an upholstery cleaning job, and putting water into a seat with foam and electronics inside it causes problems that take weeks to dry out.
Airbag-equipped seat covers deserve a separate mention. Covers designed to work with side airbags have a tear seam that must remain intact, and washing them at high heat or with harsh detergent can compromise it. Follow the manufacturer’s instructions on those specifically.
Before anything gets wet
Vacuum thoroughly. This matters more here than in normal laundry because car textiles carry grit, and grit in a washing machine is abrasive to the drum seals and to everything else in the load.
Beat or shake the mats out first, outdoors. A mat that looks clean will release a startling amount of sand when struck.
Brush the pile with a stiff brush to lift embedded material, then vacuum again.
The rule of thumb is that if you can still shake grit out of it, it is not ready for the machine.
Washing seat covers
Check the tag first, since many have one and people never look.
Cold or warm water on a normal cycle for polyester covers. Hot water can shrink them, and a seat cover that has shrunk even slightly will not go back on.
Wash them alone or with other car textiles rather than with clothing, because of the grit and the oil.
Use an enzyme detergent. Car textiles are loaded with body oil, food, and sunscreen, and those are exactly what enzymes address.
Skip fabric softener, which leaves a coating that attracts dust and makes a seat cover slippery.
Air dry, or tumble on low. Heat shrinks covers and can damage any elastic or velcro fastenings. Put them back on the seats while very slightly damp, which lets them settle into shape as they finish drying.
Washing floor mats
Carpet mats with a rubber backing can go in a machine, with care.
Cold water only. Heat makes rubber backing brittle and it can crack or separate from the carpet.
Gentle cycle, and no more than two mats at a time, because they are heavy when wet and will unbalance a drum.
Never a dryer. Heat is what destroys the backing, and a mat with a delaminated backing slides under the pedals, which is a genuine safety problem rather than a cosmetic one.
Air dry hanging over a rail so both faces get airflow, and give them a full day. A mat that goes back in the car damp will grow mould underneath where you cannot see it.
Rubber and vinyl all-weather mats do not go in a machine at all. Hose them, scrub with a brush and a little detergent, rinse, and air dry.
The specific stains cars produce
Sunscreen is the big one and it is difficult. The avobenzone in many sunscreens reacts with iron in water to produce a rust-coloured stain that ordinary washing will not remove. Treat it with a small amount of dish soap worked in, left for fifteen minutes, then washed warm with an enzyme detergent. Do not use chlorine bleach, which sets it.
Coffee and soft drinks are mostly tannin and sugar. Blot immediately, rinse with cold water from the back of the fabric, then wash with enzymes.
Grease and food oil want warm water and dish soap before the wash.
Pet hair does not wash out and must be removed dry, with a rubber glove, a squeegee, or a pumice stone drawn across the pile before anything goes in a machine.
Sand and mud should be left to dry completely and then beaten and vacuumed out. Washing wet mud drives it into the pile.
The smell, and where it comes from
A car that smells is usually not the upholstery. It is moisture underneath something.
Check under the floor mats, which trap water against the carpet after wet shoes, and under child seats, where spilled drinks collect and never dry.
The fabric on top can be perfectly clean while the carpet beneath it holds moisture and grows mould, so lifting everything out and letting the floor dry is often the whole fix.
Bicarbonate of soda sprinkled on the carpet, left overnight, and vacuumed out deals with a great deal of ordinary odour without any liquid at all.
The San Antonio part
The heat here changes this from an occasional job into a recurring one, for two reasons.
The first is sweat and sunscreen volume. In a climate with long stretches above ninety five degrees, car seats absorb far more body oil, sweat, and sunscreen than they would elsewhere, and a sealed car parked in the sun runs internal temperatures well above the outside air. That combination bakes oil into fabric, which is why car textiles here yellow and stiffen faster than they should. Washing seat covers seasonally rather than annually is realistic maintenance in this climate.
The second is that heat plus any trapped moisture is exactly what produces the musty smell people blame on the air conditioning. A spilled drink under a floor mat in a Texas August does not have days before it turns. It has hours. Pulling the mats out and letting the carpet dry after any spill matters far more here than in a cooler climate.
Hard water is a smaller third factor and it shows up as a chalky film on dark seat covers after washing. Half a cup of washing soda in the wash prevents the deposits.
Where these loads belong
Car textiles are heavy, gritty, and oily, which is a poor combination for a domestic machine. The weight unbalances small drums, the grit works on the seals, and the oil transfers to whatever gets washed next.
The machines at our self-service laundry on Jackson Keller Road have the drum capacity and water volume for heavy, dirty loads to move freely and rinse properly, and running them here keeps the grit and the oil out of the machine your clothes go in.
Our machines and the store are cleaned daily.
Nosso wash-dry-fold service covers the everyday laundry.
The short version
Removable seat covers and carpet floor mats can usually be washed, while original upholstery and rubber all-weather mats cannot. Vacuum and beat the grit out first, because grit damages a machine and everything in the load. Wash covers cold or warm with an enzyme detergent and no fabric softener, and wash mats cold on gentle, two at a time. Never put a rubber-backed mat in a dryer, since heat delaminates the backing and a loose mat under the pedals is a safety problem. Sunscreen stains need dish soap and warm water and never bleach. And a car that smells is usually damp carpet under a mat rather than the fabric itself.
WaveMAX Jackson Keller is at 2525 Jackson Keller Rd, easy to reach from north central San Antonio and the surrounding area. If a load is too heavy or too dirty for a home machine, call us at 210-314-3699.