cabin filter
 

Does the 2006 SLK 280 have a cabin air filter... if so.. where is it?
Thanks,

part #171 830 04 18 if I remember rightly. in the passenger side foot well. there are three #20 torx on the panel that has the light. pull the carpet and pad back. disconnect wires. they have a pull down/sideways disconnect. filter will be in a white box with a couple slide clips that hold the box in place. check for air leaks after it's re-installed.

You can buy one at O'Reillys or any other after market auto parts store