MACE IGNITION SERVICE KIT TO SUIT AUDI A3 8P BLY BMB BLR BVY AXX BWA BYT BZB CAWB CDAA CCZA TURBO 1.8L 2.0L I4The cause of an irregular misfire or a stumble under load may be due to a failed component of the ignition system. This Ignition service kit includes everything required to freshen up the ignition system of your vehicle. This ignition service kit is specifically designed to suit Audi vehicles fitted with the I4 engines. The coils in this kit come with a 3 year 100,000km parts only warranty. Key Features: OEM replacement coils to work with all factory