Replace Volkswagen Iridium And Platinum Plug & Volkswagen Spark plug. Find Volkswagen Iridium tipped spark plugs. Locate Volkswagen Glow plug. Maintaining optimal performance of your Volkswagen begins with the heart of the combustion engine: the spark plugs. These vital components should be inspected regularly for wear and replaced every 30,000 to 40,000 miles to prevent misfires and ensure smooth operation. Extend their lifespan by ensuring your engine is tuned, and using high-quality fuel and oil can reduce plug fouling. When selecting new spark plugs, opt for options like iridium or platinum that offer superior longevity and performance. Always choose the right grade specified for your model, and during installation, apply anti-seize to the threads to facilitate future removal. High-quality spark plugs are a small investment that can significantly enhance your vehicle's efficiency and reliability, boosting customer satisfaction and driving sales on your ecommerce platform.