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Pelican Technical Article:

Air Filter Replacement

Steve Vernon

Time:

30 min

Tab:

$35

Talent:

*

Tools:

Philips head screw driver, rags

Applicable Models:

VW Golf (1999-05)

Parts Required:

New air filter

Hot Tip:

Wipe down the inside of the airbox

Performance Gain:

If the old filter is really dirty, you'll pick up some power

Complementary Modification:

Change cabin air filter

Every 10,000 miles or so, you should change the engine air filter in your Volkswagen GTI. The air filter protects the air intake system, valves, pistons, cylinder walls, and engine oil from dust and debris that can be sucked in under normal operation. Replacement is a snap and should take only take 30 minutes or so.

Begin by opening the hood and having a look at the engine. The air filter is located in the air filter box on the left side of the engine bay.

The air box is held on by two Philips head screws along with four plastic tabs that sit in slots. While it is possible to change the air filter by simply unscrewing it and sliding the top of the air box from the housing it is a much better idea to remove the lid completely so you can clean inside the air box housing.

Begin by removing the MAF sensor. It is located on the large tube connected to the air box lid. Simply squeeze in the tab and pull it straight away from its housing.

Use a screw driver and loosen the hose clamp on the hoses attached to the MAF senor. Slide the clamps over the hose and slip the hose off.

If you are going to remove the air box cover from the engine bay you need to remove the lower hose from the lid.

Next loosen the two Philip heads screws on the lid; the screws will stay attached to the lid even when they are fully loosened.

Now you can remove the old filter, clean the air box housing and install your new filter.

Installation is the reverse of removal.

Begin by opening the hood and having a look at the engine.
Figure 1

Begin by opening the hood and having a look at the engine. The air filter is located in the air filter box on the left side of the engine bay (red arrow).

Begin by removing the MAF sensor.
Figure 2

Begin by removing the MAF sensor. It is located on the large tube connected to the air box lid (red arrow).

Simply squeeze in the tab (yellow arrow) and pull it straight away from its housing.
Figure 3

Simply squeeze in the tab (yellow arrow) and pull it straight away from its housing.

Use a screw driver and loosen the hose clamp on the hose attached to the MAF senor (red arrow).
Figure 4

Use a screw driver and loosen the hose clamp on the hose attached to the MAF senor (red arrow). Slide the clamps over the hose and slip the hose off.

If you are going to remove the air box cover from the engine bay you need to remove the lower hose (yellow arrow) from the lid.
Figure 5

If you are going to remove the air box cover from the engine bay you need to remove the lower hose (yellow arrow) from the lid.

Next loosen the two Philip heads screws (red arrows) on the lid; the screws will stay attached to the lid even when they are fully loosened.
Figure 6

Next loosen the two Philip heads screws (red arrows) on the lid; the screws will stay attached to the lid even when they are fully loosened.

Now you can remove the old filter, clean the air box (yellow arrow) housing and install your new filter.
Figure 7

Now you can remove the old filter, clean the air box (yellow arrow) housing and install your new filter.

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Page last updated: Thu 9/21/2017 02:39:38 AM