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Oil Filter Housing Replacement
 
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Pelican Technical Article:

Oil Filter Housing Replacement

Jared Fenton

Time:

1 hour1 hr

Tab:

$220

Talent:

***

Tools:

Flathead screwdriver, 8mm/10mm socket with extensions, floor jack, two jack stands, two wheel chocks, safety glasses, paper towels or rags

Applicable Models:

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

Parts Required:

Oil filter housing

Hot Tip:

Drain engine oil before removing the housing

Performance Gain:

No more squealing PCV valve

Complementary Modification:

Change engine oil

The oil filter housing on the Volvo C30 contains the oil filter as well as the PCV valve. Have you noticed a pulsating, squealing noise coming from the engine? Pull the dipstick out. Does the noise go away? If it does, the PCV is clogged and the whole filter housing must be replaced. It is also common for an old housing to crack along the plastic seams, causing an oil leak which can spray all over the engine resulting in a mess.

Replacing the housing is relatively easy and should take no more than an hour. You'll need to drain the engine oil as well as jack up the front of the car for access. See our articles on Changing Engine oil and Jacking up Your C30 for more information.

You'll also need to remove the air filter housing from the engine bay to gain access to the filter housing. See our article on Air Filter Housing Removal for more information.

Loosen and remove the 8mm bolt (green arrow) holding the dipstick (yellow arrow) to the oil filter housing.
Figure 1

Loosen and remove the 8mm bolt (green arrow) holding the dipstick (yellow arrow) to the oil filter housing.

Pull the dipstick (green arrow) up and out of the oil pan.
Figure 2

Pull the dipstick (green arrow) up and out of the oil pan. This will make removing the housing easier. Press the tab on the electrical connection (yellow arrow) and pull it off the housing. Also note the hose leading to the underside of the intake manifold (purple arrow). This will slide off the manifold once the filter housing is removed.

Now remove the hose clamp (green arrow) holding the vacuum hose leading to the upper cam cover.
Figure 3

Now remove the hose clamp (green arrow) holding the vacuum hose leading to the upper cam cover. You can usually pry these open with a flathead screwdriver. Pull the hose off the housing. When re-installing the hose, use a new hose clamp.

Press the tab on the electrical connector for the knock sensors (green arrow) and pull the connectors apart.
Figure 4

Press the tab on the electrical connector for the knock sensors (green arrow) and pull the connectors apart. Once apart, slide the gray connector off the locating tab attached to the filter housing. 

Figure 5

Pop out the plastic rivet (green arrow) holding the wiring harness to the filter housing

Move the wiring harness for the knock sensor (yellow arrow) up and out of the way to access the 10mm bolt (green arrow) behind.
Figure 6

Move the wiring harness for the knock sensor (yellow arrow) up and out of the way to access the 10mm bolt (green arrow) behind. Loosen and remove the bolt. 

Shown here are the mounting bolts for the filter housing from below the engine.
Figure 7

Shown here are the mounting bolts for the filter housing from below the engine. Loosen and remove the 10mm bolts (green arrows). There is one additional 10mm bolt located directly above the lower left bolt (yellow arrow). At this point, you can pull the filter housing off the engine block.

You'll need to pop out the remaining plastic rivet (green arrow) holding the wiring harness to the side of the filter housing.
Figure 8

You'll need to pop out the remaining plastic rivet (green arrow) holding the wiring harness to the side of the filter housing. Lift the filter housing out of the engine bay.

Shown here is the engine block with the filter housing removed.
Figure 9

Shown here is the engine block with the filter housing removed. It's a good idea to plug up the oil ports (green arrows) with paper towels or rags and then clean the area to get rid of dirt or oil.

When fitting the new oil filter housing, take note of the seal (green arrow) between the housing and the block.
Figure 10

When fitting the new oil filter housing, take note of the seal (green arrow) between the housing and the block. You'll want to use a new seal.

Shown here is the seal at the top of the filter housing (green arrow).
Figure 11

Shown here is the seal at the top of the filter housing (green arrow). Replace this seal with a new one. At this point, you're ready to install the new filter housing. Installation is the reverse of removal. Make sure to use a new hose clamp for the upper vacuum hose connection. Fill the engine with a fresh filter and new oil.

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