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The cabin air filter in your 2004 Cadillac DeVille filters the air that is blown from your heater or air conditioner into the cabin of your DeVille. 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 DeVille, 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 Cadillacs have a cabin air filter and for some models, the inclusion of a cabin air filter depends on what trim level you have (DTS). Newer cars are more likely to have a cabin air filter than older models. If your DeVille 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 DeVille and how to change it!
A check engine light can be cleared with a simple fix or it could be a major problem - find out now!2004 Cadillac DeVille DTS 4.6L V8
If your transmission is running low on fluid, be sure to add some - find out how to do this here!2004 Cadillac DeVille DTS 4.6L V8
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2004 Cadillac DeVille DTS 4.6L V8
Sure you can take it in for a $19 lube, but are you OK with a stripped oil pan and cheap parts in return?2004 Cadillac DeVille DTS 4.6L V8
DRLs are on more than your headlights. They burn out faster and should be replaced regularly2004 Cadillac DeVille DTS 4.6L V8
Learn where your spare tire and jack are located before you need it on the side of the road2004 Cadillac DeVille DTS 4.6L V8