M271 engines have two kinds of CGI and Kompressor, this is for CGI (new model)  Please notice the difference.

If you are not sure about fitment, before buying please tell me your car chassis number.

Car Model Fitment reference:

09-14 C180 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged

09-14 C200 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged

09-14 C250 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged

09-13 E200 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged

09-14 E250 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged

10-13 SLK200 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged

12-15 SLK250 1.8L 1796CC 110Cu. In. l4 GAS DOHC Turbocharged