Cabin Air Cowl Filter for BMW E-Chassis Models Compatible with: - BMW 1 Series E81, E87 (all years) - BMW 1 Series E82 Coupe (2008–2013), including 1M - BMW 1 Series E88 Convertible (2008–2013) - BMW 3 Series E90 Sedan (2006–2011), including M models - BMW 3 Series E91 Touring (2006–2011) - BMW 3 Series E92 Coupe (2006–2013), including M models - BMW 3 Series E93 Convertible (2006–2013), including M models - BMW X1 E84 (2010–2015) Vehicle compatibility charts are for reference only. Verify fitment using OEM part numbers or vehicle specifications. Features: - High-quality non-woven fabric and rubber construction - Designed to replace factory cabin air filter and HVAC filter system - Helps reduce dust, pollen, soot, and airborne pollutants - Supports improved cabin air quality and engine bay ventilation - Easy installation with basic tools Package Includes: - 2 x Cabin Air Cowl Filters (new, never used or installed) Installation Notes: - Remove DME cover and brake fluid reservoir cover - Loosen and remove HVAC filter housing screws - Rotate housing clockwise to loosen, then remove zip ties - Disconnect sensor as needed - Remove mounting screws, lift cowl panel, and pull forward - Insert filter into designated opening and secure with bolts