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The cabin air filter in your 2003 Buick Regal filters the air that is blown from your heater or air conditioner into the cabin of your Regal. 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 Regal, 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 Buicks have a cabin air filter and for some models, the inclusion of a cabin air filter depends on what trim level you have (LS). Newer cars are more likely to have a cabin air filter than older models. If your Regal 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 Regal and how to change it!
If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak2004 Buick Century Custom 3.1L V6
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2003 Buick Regal LS 3.8L V6
Sure you can take it in for a $19 lube, but are you OK with a stripped oil pan and cheap parts in return?2003 Buick Regal LS 3.8L V6
A check engine light can be cleared with a simple fix or it could be a major problem - find out now!2003 Buick Regal LS 3.8L V6
Learn where your spare tire and jack are located before you need it on the side of the road2003 Buick Regal LS 3.8L V6