
Removing stains from car upholstery often becomes a real challenge for car owners in Spain. Some stains are so persistent that standard methods fail to deliver results. Despite the variety of methods used by enthusiasts, not everyone is aware of a simple and affordable solution that can restore the interior to its original state.
Mercadona stores offer a wide selection of cleaning products, but for effective cleaning, just one product is needed—strong ammonia. Combined with other ingredients, it helps tackle even the toughest stains on seats and other surfaces inside the car.
To prepare the cleaning mixture, you will need a bottle of ammonia, two tablespoons of soap flakes, and half a liter of hot water. Once the ingredients are combined, let the solution cool, then pour it into a spray bottle. This allows for even application on soiled areas.
Treating stains with this solution does not require vigorous scrubbing. Simply spray the mixture on the affected areas and wipe them down with a damp cloth. As a result, the interior becomes noticeably cleaner and traces of dirt disappear with minimal effort.
In addition to removing stains, this mixture helps eliminate unpleasant odors that may develop in the car. Regular use of this method maintains cleanliness and freshness inside the vehicle without requiring much time or expense.
While there are alternative methods, such as using vinegar or baking soda, ammonia is considered one of the most effective and affordable options for deep cleaning. At Mercadona, it costs just €1.25 for 750 ml, making it especially appealing to motorists.












