where is the location of the cabin air filter and engine air filter ? on 2006 Mercedes-Benz CLS500

how often should i inspect?

Asked by for the 2006 Mercedes-Benz CLS500
Here is the cabin filter location http://www.justanswer.com/car/0p8bz-turn-ac-on-10-seconds-it-cabin-air-filter-part-number.html For the air filter just follow the air intake hose away from the engine till you see a large square shaped box. This will have the filters in it. I believe this car uses 2 air filters.