Product Description

Feature:

*Stock parts direct replacement

*100% test before shipment

*Plug pins: 4-wire & 5-wire

Interchange Part Number:

 234-5091,234-4881

Fits:

Mercedes-Benz
C230 2.5L V6 2006 2007
C280 3.0L V6 2006 2007
C350 3.5L V6 2006 2007
Clk350 3.5L V6 2006 2007 2008 2009
Clk550 5.5L V8 2007 2008 2009
Clk63 Amg 6.3L V8 2007 2008 2009
E350 3.5L V6 2006 2007 2008 2009
E550 5.5L V8 2007 2008 2009
Sl63 Amg 6.3L V8 2009 2010 2011 2012
Slk280 3.0L V6 2006 2007 2008
Slk300 3.0L V6 2009 2010
Slk350 3.5L V6 2005 2006 2007 2008 2009 2010
Please see compatibility chart.  

Package content:

4pcs x Oxygen Sensor

THE ADVANTAGES OF OUR OXYGEN SENSOR.

1. Improves engine performance
2. Monitors combustion process and reduce emission
3. Gas saving
4. Meet or exceed OEM specification

HOW TO IDENTIFY DEFECTIVE OXYGEN SENSOR?
1.Reduced gas mileage
2.Exhaust smells bad like rotten eggs
3.Check engine light lights up 
4.Engine idles rough
5.Car is suddenly hard to start

HOW TO INSTALL OXYGEN SENSOR?
Step 1: Pull the plug and remove the oxygen sensor.
Step 2: Compare the new sensor with the old one to ensure they are same model.
Step 3: Add a small amount of anti-sticking agent on the screw thread.
Step 4: Slightly tighten the sensor against wires damage and sensor leakage.
Step 5: Turn on the ignition, and use the scanner to remove the codes.