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Pelican Technical Article:

Fuel Filter Replacement

Jared Fenton

Time:

1 hour1 hr

Tab:

$10

Talent:

**

Tools:

Flathead screwdriver, fluid container or bucket

Applicable Models:

VW Jetta GL (1999-05)
VW Jetta GLS (1999-05)
VW Jetta Wolfsburg (1999)

Parts Required:

Fuel filter

Hot Tip:

Relieve the fuel pressure in the system prior to changing the filter

Performance Gain:

Better running engine

Complementary Modification:

Replace spark plugs

The fuel filter is used to keep contaminants out of the fuel system. Over time, the filter can become clogged and prevent a steady flow of fuel to the engine. In this article, we will go over the steps involved with changing it out.

Keep in mind that we will be working around raw fuel. Have a fire extinguisher nearby and obviously keep any flames or sources of ignition well away from the car. Additionally, open all the doors and rear hatch and make sure the area in which you work is well ventilated. Fuel vapors can be very dangerous. I also recommend wearing fuel resistant gloves and a carbon filter mask for protection.

You'll want to have the fuel level in the car as low as possible before starting this job. Wait until the car's fuel level is on reserve before removing the filter.

You'll also need to relieve the pressure in the fuel system prior to removing the fuel lines. Failure to do so can result in pressurized fuel shooting out of the lines when they are disconnected. You can accomplish relieving the fuel pressure by removing the fuse for the fuel pump and running the car until it dies. See our article on Fuel Injector Replacement for more information.

The fuel filter is located on the left hand side of the car (looking towards the rear), right in front of the rear wheel.
Figure 1

The fuel filter is located on the left hand side of the car (looking towards the rear), right in front of the rear wheel. Pull the line (green arrow) out of the holders on the filter and chassis. Now loosen the hose clamp (yellow arrow) using a flat head screwdriver.

Pull the filter out of the hose clamp and locate the fuel line connections.
Figure 2

Pull the filter out of the hose clamp and locate the fuel line connections. Press the tab (green arrow) on the fuel line connector and pull it off. You'll want to have a container on hand to collect any raw fuel that pours out of the filter and lines. Note that the rear fuel line connection is the same, but it is difficult to get a picture of. You'll just have to feel for the tab.

Once the fuel lines have been disconnected from the filter, carefully maneuver the filter out from the chassis.
Figure 3

Once the fuel lines have been disconnected from the filter, carefully maneuver the filter out from the chassis.

Note the hose clamp (green arrow) that secures the filter in place.
Figure 4

Note the hose clamp (green arrow) that secures the filter in place. You'll need to slide the new filter up into place through the clamp.

Transfer the retaining sleeve (green arrow) from the old filter to the new one.
Figure 5

Transfer the retaining sleeve (green arrow) from the old filter to the new one.

It is important to install the new filter correctly.
Figure 6

It is important to install the new filter correctly. Note the FLOW arrow on the filter body (green arrow). The filter must be installed so that the arrow points towards the engine. Installing the new filter is the reverse order of removal.

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Page last updated: Mon 5/22/2017 03:15:30 AM