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BMW E39 Oil Lever Sensor Removal
 
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Pelican Technical Article:

BMW E39 Oil Lever Sensor Removal

Kerry Jonsson

Time:

1 hour1 hr

Tab:

$100

Talent:

***

Tools:

10mm, 17mm wrench or socket with ratchet, small thin pick,

Applicable Models:

BMW 525i Sedan/Wagon (2001-03)
BMW 528i Sedan/Wagon (1997-00)
BMW 530i Sedan (2001-03)
BMW 540i Sedan/Wagon (1997-03)

Parts Required:

Oil level sensor, O-rings, engine oil

Hot Tip:

Drain engine oil before removing oil level sensor

Performance Gain:

Stop oil leak from oil level sensor or replace malfunctioning sensor.

Complementary Modification:

Replace engine oil at the same time.

BMW uses an oil level sensor to inform the driver if the engine oil level is low. With the use of synthetic oils oil changes have become less frequent but even a good running engine uses oil over time and mileage. BMW felt an oil level sensor would help remind motorist about their oil level. Your oil level sensor can malfunction and turn on the warning message or it can leak. In this the article we will go over all the steps in removing the oil lever sensor.

Engine Oil Level Sensor Six Cylinder Engine:
Use a 17mm wrench or socket with a ratchet to remove the drain plug (green arrow) and drain the engine oil into a drain pan.
Figure 1

Use a 17mm wrench or socket with a ratchet to remove the drain plug (green arrow) and drain the engine oil into a drain pan.

Working at the back of the oil pan on the left side remove the three 10mm nuts (green arrows) that secure the oil level sensor to the oil pan.
Figure 2

Working at the back of the oil pan on the left side remove the three 10mm nuts (green arrows) that secure the oil level sensor to the oil pan.

Follow the wiring harness to locate the electrical connector for the oil level sensor.
Figure 3

Follow the wiring harness to locate the electrical connector for the oil level sensor. Push the retaining clip (green arrow) in and unplug the connector in the direction of the blue arrow. Installation is the reverse of the removal steps. Fit the oil level sensor in the oil pan and tighten the three 10mm nuts that hold it down. Squeeze the retaining clip and plug in the electrical connector. Fill the engine with oil and check the oil level.

Engine Oil Level Sensor Eight Cylinder:
Use a 17mm wrench or socket with a ratchet and remove the drain plug on the lower oil pan.
Figure 4

Use a 17mm wrench or socket with a ratchet and remove the drain plug on the lower oil pan. Drain the oil into a drain pan.

Remove the three 10mm bolts that hold the oil level sensor to the lower oil pan.
Figure 5

Remove the three 10mm bolts that hold the oil level sensor to the lower oil pan.

Follow the sensor wiring to the electrical connector and unplug it by pushing on the retaining clip and pull the connectors apart.
Figure 6

Follow the sensor wiring to the electrical connector and unplug it by pushing on the retaining clip and pull the connectors apart. In this case someone has spliced the wires together with butt connectors (green arrows). These will have to be cut and re-spliced. Installation is the reverse of the removal steps. Fit the oil level sensor in the oil pan and tighten the three 10mm nuts that hold it down. Squeeze the retaining clip and plug in the electrical connector. Fill the engine with oil and check the oil level.

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Comments and Suggestions:
mayphilips Comments: I have a BMW 540i 1996 model. Tried to start the engine but did not come up. Later I discovered that fuse 15 is blown. What could be the likely cause of the problem? Thanks
March 25, 2016
  Followup from the Pelican Staff: I don’t the wiring for your vehicle. If you find some you can share, I can help you determine what may have blown the fuse.

I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
Artis Comments: Hei! how do i remove oil pan on my 1996 520i e39 if there is suspension right under it? thanks
February 1, 2014
  Followup from the Pelican Staff: You will have to drop the subrame and suspension to gain access to the oil pan. - Nick at Pelican Parts  

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Page last updated: Fri 12/2/2016 02:04:32 AM