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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!
Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb2003 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
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2003 Buick Regal LS 3.8L V6
Many cars will burn or leak a little bit of oil. Over time, this adds up and you might need to add some - learn how to here!2003 Buick Regal LS 3.8L V6
Flushing the coolant in your car is not that hard and will extend the life of your engine tremendously - learn how here!2003 Buick Regal LS 3.8L V6
If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems2003 Buick Regal LS 3.8L V6