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Air Filter Replacement
 
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Pelican Technical Article:

Air Filter Replacement

Jared Fenton

Time:

15 minutes15 mins

Tab:

$20

Talent:

*

Tools:

Philips screwdriver, shop rags, vacuum

Applicable Models:

Volvo C30 T5 (2008-13)
Volvo C30 T5 R-Design (2008-13)

Parts Required:

New air filter

Hot Tip:

Inspect and clean filter housing if needed

Performance Gain:

Better breathing engine

Complementary Modification:

Change engine oil

Every 10,000 miles or so, you should inspect and/or change the air filter in your C30. The air filter protects the fuel injection system and the air intake system from dust and debris that can be sucked in under normal operation.

On the C30, the air filter is located at the front of the engine compartment. To access the filters, first remove the engine compartment covers. Please see our article on Engine Cover Removal for more info.

To access the filter, simply loosen the two Phillips head screws and pull the filter tray up and out of the filter housing. Pull the old filter out of the tray and insert the new one.

Take a look inside the filter housing for dirt or debris. Clean the housing out with a vacuum if needed before sliding the tray back into the housing.

For the C30 there are basically two different types of air filters--the stock paper or cloth air filters and aftermarket units. These aftermarket units utilize an oil-soaked fabric to achieve freer airflow. The bottleneck for airflow in the C30 engine is not necessarily the air filter. The primary advantage of the aftermarket units is that you usually only have to purchase one, and it will last the life of your car.

No matter what your friends tell you, these aftermarket filters will not add any significant horsepower to your engine. Many tests on a dynamometer have revealed that the freer flow air filters do not suddenly "create" horsepower out of thin air. If you install one of these filters into your car and "swear" there's more horsepower, then have a friend do a blind test for you. Have him switch the filters in and out at random and see if you can tell the difference. This is what is commonly called the placebo effect: perceiving significant gains in performance just because you added a "performance part."

The downside to using aftermarket filters is that they often do not filter as well as the factory units. In addition, the use of aftermarket filters may cause excess dirt to accumulate on the mass air flow sensor and lead to its premature failure. The bottom line is that you need to carefully research any aftermarket filter before you install it into your car, and carefully clean and maintain it thereafter. I personally prefer to use the stock OEM cloth/paper filters to ensure maximum filtering and protection. Whichever one you choose, make sure that it filters as well as or better than the original Volvo specifications.

Keep in mind that this article is specific to the C30, however most Volvo models with the T5 engine can use this article as a guide. There may be slight differences between the C30 and other cars.

Open the hood and locate the filter housing at the front of the engine.
Figure 1

Open the hood and locate the filter housing at the front of the engine. Loosen the two Philips head screws (green arrows). Don t worry about losing the fasteners, as they are held captive in the filter tray.

Pull the filter tray up and out of the filter housing.
Figure 2

Pull the filter tray up and out of the filter housing. It may take a bit of force to pop it out.

Shown here is the backside of the filter (green arrow).
Figure 3

Shown here is the backside of the filter (green arrow). Excessive accumulation of dirt or debris on this side will tell you if it needs to be replaced or not.

Pull the filter up and out of the filter tray.
Figure 4

Pull the filter up and out of the filter tray. When installing the new filter, make sure that the orange gasket around the perimeter (green arrow) is fully seated in the tray.

Inspect the inside of the filter housing for any dirt or debris left behind.
Figure 5

Inspect the inside of the filter housing for any dirt or debris left behind. Use a vacuum or rags to clean as needed.

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