SEARCH BY VEHICLE

Boost 1998-2004 Smart Car Power and Efficiency with a K&N Replacement Air Filter

       Printer Image
1998-2004 Smart City Coupe, 2002-2004 Smart Cabrio, 2002-2005 Smart Crossblade, 2003-2006 Smart Roadster, and 2004-2007 Smart ForTwo Air Filter

The K&N E-9257 Replacement Air Filter is designed for the 1998-2004 Smart City Coupe, 2002-2004 Smart Cabrio, 2002-2005 Smart Crossblade, 2003-2006 Smart Roadster, and 2004-2007 Smart ForTwo

In the 1980's, the Mercedes R&D department started to develop a tiny 2-seat runabout that was optimized for an urban environment. To minimize parking headaches and aide maneuverability, the car was just 2.5 meters in length. The engine was equally diminutive, but the little car looked like a wedge of cheese. Around the same time, a man named Nicolas Hayek had a similar idea. He was the brains behind the Swatch watch company, and his little car could achieve the same goals as the Mercedes city car, but with a lot more style. Daimler-Benz and Hayek reached an agreement in 1994, and the Smart Car was born (the name stands for Swatch Mercedes ART). The first production model was introduced in 1998, and the 'Smart' little city car has been a strong seller ever since. It's always been about style and efficiency, rather than outright performance. But installing a K&N E-9257 Replacement Air Filter can turn your Swatch car into a 'Smart' performer.

K&N E-9257 Replacement Air Filter

The cotton gauze material in the K&N E-9257 Replacement Air Filter provides superior filtration and up to 50% more air to the motor

Although the Smart car features a number of innovations, the engine still makes power the old fashioned way: Air is drawn in through the intake, then mixed with fuel inside the cylinders. As the piston moves up to compress the mixture, a spark plug ignites it and the resulting explosion forces the piston back down, which turns the crankshaft and sends power out to the wheels. The OE Smart air filter is responsible for removing dirt from the air before it can reach the engine. However, it's made from a thick paper that slows and limits the amount of air entering the system. It will also restrict airflow over time, causing the performance and fuel economy of your little city car to plummet dramatically.

Unlike an OEM Smart car air filter, the K&N E-9257 replacement air filter is made from a high-flow cotton gauze material. 4-6 layers of this proprietary fabric are sandwiched between two aluminum mesh screens, then treated with a special red colored oil blend. This causes the cotton fibers to become a sticky web that traps dirt particles as the air flows through it. The oil then soaks into those contaminants, locking them in place for up to 50,000 miles / 80,000 kms (depending on driving conditions). When you finally need to clean the filter, simply remove it from the airbox and use the K&N Air Filter Cleaning Kit . Using a washable K&N filter will save you from having to buy a new air filter every year, and it's even covered by the K&N 10-Year/Million Mile Limited Warranty.

K&N air filter cleaning kit

With a K&N air filter cleaning kit, you can reuse your K&N air filter for up to 1 Million miles

Unlike an OEM Smart car air filter, the K&N E-9257 replacement air filter is made from a high-flow cotton gauze material. 4-6 layers of this proprietary fabric are sandwiched between two aluminum mesh screens, then treated with a special red colored oil blend. This causes the cotton fibers to become a sticky web that traps dirt particles as the air flows through it. The oil then soaks into those contaminants, locking them in place for up to 50,000 miles / 80,000 kms (depending on driving conditions). When you finally need to clean the filter, simply remove it from the airbox and use the K&N Air Filter Cleaning Kit . Using a washable K&N filter will save you from having to buy a new air filter every year, and it's even covered by the K&N 10-Year/Million Mile Limited Warranty.

Features & Benefits of the K&N E-9257 Replacement Air Filter

  • Developed for the 1998-2004 Smart City Coupe, 2002-2004 Smart Cabrio, 2002-2005 Smart Crossblade, 2003-2006 Smart Roadster, and 2004-2007 Smart ForTwo
  • Boosts horsepower
  • Boosts torque
  • Increases airflow by up to 50%
  • Provides sharper throttle response
  • Allows the Smart 0.6L, 0.8L and 0.7L engines to produce more horsepower at lower RPMs
  • Unique cotton gauze material provides unrestricted airflow and superior filtration
  • Will not affect ECU programming
  • Road Legal in All 50-States
  • Reusable K&N air filter will not need to be cleaned for up to 50,000 miles / 80,000 km  (depending on road conditions)
  • Drop-in replacement for an OE Smart air filter
  • Backed by the K&N 10-Year/Million Mile Limited Warranty

K&N Applications for E-9257 Replacement Air Filter

2007 SMART FORTWO 0.8L L3 DSL - to 3/07
2007 SMART FORTWO 0.7L L3 F/I - to 3/07
2006 SMART ROADSTER 0.7L L3 F/I - All
2006 SMART FORTWO 0.8L L3 DSL - All 
2006 SMART FORTWO 0.7L L3 F/I - All
2005 SMART ROADSTER 0.7L L3 F/I - All
2005 SMART FORTWO 0.8L L3 DSL - All 
2005 SMART FORTWO 0.7L L3 F/I - All
2005 SMART CROSSBLADE 0.6L L3 F/I - All
2004 SMART ROADSTER 0.7L L3 F/I - All
2004 SMART FORTWO 0.8L L3 DSL - All
2004 SMART FORTWO 0.7L L3 F/I - All
2004 SMART CROSSBLADE 0.6L L3 F/I - All
2004 SMART CITY COUPE 0.8L L3 DSL - All
2004 SMART CITY COUPE 0.7L L3 F/I - All
2004 SMART CITY COUPE 0.6L L3 F/I - All
2004 SMART CABRIO 0.8L L3 DSL - All
2004 SMART CABRIO 0.7L L3 F/I - All
2004 SMART CABRIO 0.6L L3 F/I - All
2003 SMART ROADSTER 0.7L L3 F/I - All
2003 SMART CROSSBLADE 0.6L L3 F/I - All
2003 SMART CITY COUPE 0.8L L3 DSL - All
2003 SMART CITY COUPE 0.7L L3 F/I - All
2003 SMART CITY COUPE 0.6L L3 F/I - All
2003 SMART CABRIO 0.8L L3 DSL - All
2003 SMART CABRIO 0.7L L3 F/I - All
2003 SMART CABRIO 0.6L L3 F/I - All
2002 SMART CROSSBLADE 0.6L L3 F/I - All
2002 SMART CITY COUPE 0.8L L3 DSL - All
2002 SMART CITY COUPE 0.6L L3 F/I - All
2002 SMART CABRIO 0.8L L3 DSL - All
2002 SMART CABRIO 0.6L L3 F/I - All
2001 SMART CITY COUPE 0.8L L3 DSL - All
2001 SMART CITY COUPE 0.6L L3 F/I - All
2001 SMART CABRIO 0.8L L3 DSL - All
2001 SMART CABRIO 0.6L L3 F/I - All
2000 SMART CITY COUPE 0.8L L3 DSL - All
2000 SMART CITY COUPE 0.6L L3 F/I - All
2000 SMART CABRIO 0.6L L3 F/I - All
1999 SMART CITY COUPE 0.8L L3 DSL - All
1999 SMART CITY COUPE 0.6L L3 F/I - All
1998 SMART CITY COUPE 0.6L L3 F/I - All


K&N PRODUCT SEARCH     WHERE TO BUY K&N


Horizontal Advertisement


Did you like this story? Select 1 to 5 stars to rate it.

K&N Engineering in Riverside California is the world's leading manufacturer of washable performance air filters and air intake systems. K&N invented the reusable high flow cotton air filter in 1969 and has been perfecting the technology ever since. K&N is a world class filtration company selling air filters, oil filters, and intakes in over 50 countries. K&N sells over 5,000 products designed for cars, trucks, motorcycles, engines, and industrial applications. From their Million Mile Warranty to their Consumer Protection Pledge, K&N stands behind their products and their consumers 100%. The distinctive K&N logo represents performance from one of the original performance companies. For more information, visit knfilters.com.