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BMW E39 Oil Filter Housing and Lines Removal
 
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Pelican Technical Article:

BMW E39 Oil Filter Housing and Lines Removal

Kerry Jonsson

Time:

5 hours5 hrs

Tab:

$100

Talent:

****

Tools:

10mm, 13mm socket with ratchet, small thin pick, flathead screwdriver

Applicable Models:

BMW 540i Sedan/Wagon (1997-03)

Parts Required:

Oil filter housing mounts, O-rings, lines

Hot Tip:

Keep drain pan under oil filter housing while disconnecting the oil lines

Performance Gain:

Stop oil leak from housing or lines

Complementary Modification:

Replace oil filter at the same time.

BMW uses a remote oil filter housing on their V8 engines. The external oil filter housing is mounted on the driver side of the engine compartment towards the front behind the headlight assembly. It also contains an oil pressure switch mounted at the base of the assembly. The housing is rubber mounted to the body of the car. Over time these rubber mounts can break and they are replaceable items. Oil lines bring high pressure oil to the housing to get filtered. This also dissipates some of the heat the oil absorbs from the engine. These lines and fittings can leak as O-rings age. In this tech article we will go over all the steps to replace your oil filter housing and lines.

Here we are under the hood on the left side behind the headlight looking at the oil filter housing.
Figure 1

Here we are under the hood on the left side behind the headlight looking at the oil filter housing. Remove the two 10mm fasteners (green arrows) that mount the oil filter housing to the rubber mounts.

If your mounts are broken and you are going to replace them use a 19mm wrench to remove the mounts (green arrows) from the body mounted bracket.
Figure 2

If your mounts are broken and you are going to replace them use a 19mm wrench to remove the mounts (green arrows) from the body mounted bracket.

Use a flat head screwdriver to remove the hose clamp for the hose that mounts at the bottom of the housing.
Figure 3

Use a flat head screwdriver to remove the hose clamp for the hose that mounts at the bottom of the housing.

At the bottom of the oil filter housing unplug the electrical connector (green arrow) for the oil switch by pushing the retaining clip in the direction of the blue arrow and lift the connector straight upwards.
Figure 4

At the bottom of the oil filter housing unplug the electrical connector (green arrow) for the oil switch by pushing the retaining clip in the direction of the blue arrow and lift the connector straight upwards.

Loosen the 13mm securing nut that holds the bracket which holds the oil lines in place in the oil filter housing.
Figure 5

Loosen the 13mm securing nut that holds the bracket which holds the oil lines in place in the oil filter housing.

Remove the bracket that holds the oil lines by lift it upwards in the direction of the blue arrow.
Figure 6

Remove the bracket that holds the oil lines by lift it upwards in the direction of the blue arrow.

Grab the oil feed line and pull it in the direction of blue arrow to remove the line from the housing.
Figure 7

Grab the oil feed line and pull it in the direction of blue arrow to remove the line from the housing.

Grab the oil return line and pull it in the direction of the blue arrow to remove the line from the housing.
Figure 8

Grab the oil return line and pull it in the direction of the blue arrow to remove the line from the housing.

Use an angle head pick to remove the O-rings that seal the oil lines in the housing.
Figure 9

Use an angle head pick to remove the O-rings that seal the oil lines in the housing. Always install new O-rings. Installation is the reverse of removal.

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Page last updated: Wed 12/7/2016 02:04:51 AM