Sensor Type Active sensor. Type Sensor, wheel speed. Temperature range to 150 °C. Temperature range from -40 °C. Fitting Position: Front Axle; Model Year to: 2010. Engine Code: M 271.820; Construction Year from: 01/2009; Construction Year to: 04/2012; Fitting Position: Front Axle; Component No.: 809; Component No.: 800; Component No.: 801.