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The cabin air filter in your 2009 Mercedes-Benz C300 filters the air that is blown from your heater or air conditioner into the cabin of your C300. You need to change it at least once a year or every 20,000 miles. Replacing the cabin air filter (also know as the dust filter, hvac filter, pollen filter, air conditioner filter and hepa filter) will improve the air quality of your C300, will put less strain on your heating and air conditioning system and can increase your gas mileage. These filters are fairly inexpensive, so check out our parts page for great deals on a new one (tip: buy several - they don't expire and you will be able to quickly swap the old one out for a fresh one).
Not all Mercedes-Benzs have a cabin air filter and for some models, the inclusion of a cabin air filter depends on what trim level you have (Sport). Newer cars are more likely to have a cabin air filter than older models. If your C300 has a funky odor when you turn on the heat or air conditioner, or it seems like the fan doesn't work as well as it used to, replacing your cabin air filter is a quick and cheap fix! The video above shows you the cabin air filter location in your C300 and how to change it!
Want an easy way to save $500? Rotate your tires at least three times per year2009 Mercedes-Benz C300 Sport 3.0L V6
Learn where your air filter is located and how to determine if it needs to be changed.2009 Mercedes-Benz C300 Sport 3.0L V6
Did you know that heat is worse for your battery than cold? Replace it every 4 years2009 Mercedes-Benz C300 Sport 3.0L V6
Odd electrical problems that come out of nowhere can often signify a blown engine fuse - check and change yours here!2009 Mercedes-Benz C300 Sport 3.0L V6
If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak2009 Mercedes-Benz C300 Sport 3.0L V6
Unlike a waist belt, these usually become looser as they age! Learn how to check it here2009 Mercedes-Benz C300 Sport 3.0L V6