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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 04-16-2015, 04:52 AM   #1
acg32271
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Join Date: Mar 2015
Location: belfast
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My Ride: e46 325ci
Oil light sensor problem.

Hi, have a e46 325ci coupe, when i start the engine after a couple of seconds the oil light comes on then after bout 10 seconds it goes away.

been told its the sensor in the sump that needs replaced so iv bought this.

my question is, do i need to take the sump of the car to get at this sensor or its it attched to the sump bung?

also how many ltrs of oil do i need for a oil change?

Cheers Conor

Last edited by acg32271; 04-16-2015 at 05:03 AM.
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Old 04-16-2015, 05:52 AM   #2
Solidjake
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My Ride: '02 330i 6MT
approx 6.9 quarts/6.5 liters for the oil change (search the forum if you want to know what type of oil to use)

The sensor is removed by 3 nuts/bolts, pops out and the new one pops in. The ONLY brand you can use for the sensor is HELLA.

Last edited by Solidjake; 04-16-2015 at 05:52 AM.
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Old 04-16-2015, 06:58 AM   #3
jfoj
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My Ride: 330CiC, M5, X5
Depending on the model of the car, you may have to remove a lower reinforcement plate to access the oil level sensor.

On my E46 convertible I had to remove about 8 bolts and take off the lower reinforcement plate to access the oil level sensor. Some cars do not have this reinforcement plate and you can see the sensor and only need to remove the 3 screws.

Note that removing the oil level sensor will drain the oil from the sump, so plan an oil change or drain the oil into a clean container before removing the oil level sensor.
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Old 04-16-2015, 09:31 AM   #4
LuckyKilla
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Join Date: Feb 2015
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For sure do it when you change the Oil. Just did my oil change and sensor with my son this Past Friday. Hardest part of it all is removing your skid plate... we never even had to jack the car up to do everything =)
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