QIJIAUTO O2 Oxygen Sensor Upstream or Downstream 234-4829 Compatible with for Audi A3 2008-2013 for Audi A4 2005-2009 About this item FUNCTION - Our sensor can solve the fault light, reduce fuel consumption, solve jitter, be safe, stable, durable, accelerate smoothly, and improve the overall vehicle operation performance. ADVANTAGE - The unique protective layer can effectively prevent poisoning and permanent damage of the sensor unit.Silver alloy melting point joint to help installation.Processed according to the size of the original vehicle, it has wide applicability ,smooth acceleration, and good quality. Using our sensor can greatly reduce the increase in fuel costs and improve engine performance and fuel economy. FITMENT - O2 sensor fit for for Audi A3 2008-2013,for Audi A4 2005-2009,for Audi R8 2008-2012 2014,for Audi TT 2008-2009,for Volkswagen Beetle 2012-2014,for Volkswagen CC 2010-2014,for Volkswagen Eos 2009-2014,for Volkswagen for Golf 2010-2012 2014,for Volkswagen for GTI 2008-2014,for Volkswagen for Jetta 2005-2014,for Volkswagen for Passat 2010 2012-2014,for Volkswagen Rabbit 2008-2009,for Volkswagen Touareg 2011-2014 PROCUCT DETAIL IMFORMATION - Wires: 4, Package Includes: 1 x O2 Sensor; Terminal Gender: Male