ECOGARD XA5406 Premium Engine Air Filter Fits 1998-2004 Mercedes-Benz SLK230 COMPATIBLE with 1998-2004 Mercedes-Benz SLK230. IMPROVE PERFORMANCE by changing your vehicle's air filter at least every 12,000 miles (or as recommended in your car owner's manual); to ensure your vehicle's engine has the clean and efficient air flow it needs for fast acceleration and long term power. AVOID INCREASED ENGINE WEAR caused by dirty air intake filters that may allow damaging particles to get into the engine. FACTORY FIT FOR EASY INSTALLATION. Replaces: FRAM CA8625 Purolator A35406 WIX 42620 OE 604 094 09 04. SPECIFICALLY ENGINEERED AND TESTED for Mercedes-Benz OE (original equipment) engine air filter's fit, form, and function.