Bosch Lambda Sensor Single 4 Wire 660mm Black Plug Exhaust O2. Vehicle-Specific Connector: For ensuring a secure electrical connection Optimised engine combustion and improve engine efficiency: The Bosch lambda sensor with vehicle-specific connector supports the ECU in the measurement of the air-fuel mixture. Functionally and quality tested in accordance with the same standards as for original equipment parts: For high performance and reliability over a long service life Continuous development: Ensuring always up-to-date with the latest technological standards Installation ready. Number of circuits: 4; Overall Length [mm]: 660; Construction Year from: 03/2007, 09/2002; Construction Year to: 02/2008, 02/2011, 03/2006, 04/2005, 04/2009, 04/2010, 04/2013, 05/2005, 05/2010, 08/2004, 08/2008, 09/2006, 09/2008, 10/2008, 10/2010, 11/2007, 11/2010, 12/2009; Engine Code: M 271.921; Fitting Position: after catalytic converter; Left-/right-hand drive vehicles: for left-hand drive vehicles; Lambda Sensor: Diagnostic Probe; Exhaust System: after catalytic converter; MERCEDES-BENZ: E-Klasse Limousine (W211),C-Klasse Limousine (W204),C-Klasse T-modell (S204),C-Klasse Limousine (W203),E-Klasse Limousine (W212),E-Klasse T-modell (S211),C-Klasse T-modell (S203),SLK (R171),CLK (C209),C-Klasse Sportcoupe (CL203),CLK Cabriolet (A209),CLC (CL203); 0258986602, LS6475, 0025400617, 25400617, A0025400617, A0025400617; Oxygen sensor,O2 sensor,Lambda probe,Lambda oxygen sensor,Lambda probe oxygen sensor,Lambda O2 oxygen sensor.