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E90/E91/E92/E93 (2006 - 2013)
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Old 03-09-2013, 01:27 PM
chopin1012 chopin1012 is offline
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Mein Auto: 2006 BMW 330i Sedan
Oil Level Sensor Thoughts

I recently performed an oil change on my 330i. I added 7 quarts of oil. Took the car our for a test drive, and the the oil level read as half full. I thought it might just need extra time, so I drove it for a few days and checked iDrive again, only to see that it was higher, but not full. It seemed to be 1/4 low, which is what was shown on the dashboard also. After another two weeks with the level reading 1/4 low, I added 1/4 quart of oil. It's been about three weeks and the level still reads 1/4 low. It has never read full. I found this odd as I had changed the oil only 5000 miles before and it read full immediately after doing the change (I changed it sooner than usual because I put in non-compliant Mobil 1 and changed it 5k miles later to 0W40 as per BMW's website).

Anyway, I've read several threads about the sensor which mention having a software update and then changing the sensor. Is it possible that a software update will fix this problem? I'd hate to spend $100 at the dealership only to need to drop another $200 for a sensor if a software update won't fix it. I'm not even sure my car has any outstanding software updates available.

Any thoughts appreciated.
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Old 03-09-2013, 05:07 PM
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fun2drive fun2drive is offline
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Location: Panhandle of Florida
 
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Mein Auto: 335 vert//M3/4/ 13Outback
I think I would visit the dealership and talk to the service advisor to see if there is anything such as a service bulletin or technical update for the oil sensor indicator. This is something that bugs you but it isn't something that is critical since your car isn't leaking and you know you put the correct level in. I have already thought about what I was going to do when and if this happens to me. My plan is to drain the oil and keep it then pull the indicator, clean it and make sure the electrical connections are solid. Refill and check again. If no change meaning the level is the same then I would be changing the sensor out assuming no useful information from BMW...
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Old 03-10-2013, 10:27 AM
chopin1012 chopin1012 is offline
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Good idea. I'll stop in this week. I like the suggestion of draining oil and then cleaning the sensor. I'll do both of these. Thanks.

Sent from my Nexus 4 using Bimmer App
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Old 03-12-2013, 09:15 PM
SK328xi SK328xi is offline
sk328xi
Location: Maryland
 
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Mein Auto: 2011 328xi jet black
Chopin I know the problem, you have to drive the car over 6 miles BEFORE you press the oli check button. its in the owners manual in the fine print.
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