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The engine air filter in your 2002 Audi A4 Quattro cleans the air that enters your engine. You should change the filter on your A4 Quattro at least once a year or every 20,000 miles, whichever comes first. If you drive in dusty or sandy conditions, you should change your filter more frequently. A dirty air filter will cause your A4 Quattro to lose 1 - 3 mpg, depending on your driving, you can save 70 - 100 gallons of gas per year simply by changing your filter regularly. The video above, shows you where the engine air filter is located in your A4 Quattro and how to change it!
In addition to improving the fuel economy of your A4 Quattro, regularly replacing your air filter will put less strain on your engine. These filters are fairly inexpensive, so check out our parts page for great deals and coupons on a new one (tip: buy several, when you go to check the filter on your A4 Quattro, you can easily swap it for a new one if it is dirty).
DRLs are on more than your headlights. They burn out faster and should be replaced regularly2002 Audi A4 Quattro 1.8L 4 Cyl. Turbo
Help keep your car as responsive as you are by maintaining proper power steering fluid levels2002 Audi A4 Quattro 1.8L 4 Cyl. Turbo
If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems2002 Audi A4 Quattro 1.8L 4 Cyl. Turbo
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2002 Audi A4 Quattro 1.8L 4 Cyl. Turbo
Coolant hoses wear out over time and need to be replaced - check 'em early and often2002 Audi A4 Quattro 1.8L 4 Cyl. Turbo
The best way to fix leaking hoses is to replace them, but if you don't have time, a stop leak product might work for you2002 Audi A4 Quattro 1.8L 4 Cyl. Turbo