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BMW 3-Series (E90 E92) Forum
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Oil in motor
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07-26-2014, 09:17 PM | #1 |
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Oil in motor
So as I was parking today at work I got a message saying the the oil was at it's lowest point. During my lunch I went to start my car and check the oil amount through the computer and it said +1 qt so do I just have to add a qt or all it has in the engine right now is a qt?
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07-26-2014, 09:21 PM | #2 |
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07-26-2014, 09:42 PM | #3 | |
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07-26-2014, 09:44 PM | #4 | ||
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07-26-2014, 09:51 PM | #5 |
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The light comes on when you need to add 1 qt. Like I said add 1 qt and you should be fine. Re-check the oil level after adding 1 qt. If it says "OK" you are done. Do not overfill.
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07-26-2014, 10:06 PM | #7 |
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Slightly off-topic: anyone know how long these oil condition sensors last in our cars?
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07-27-2014, 07:59 AM | #8 | |
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My original went 220K and is still good. I changed it because BMW programs the oil life monitor to go defunct at 186,000. When you try to reset the CBS at the next oil change after 186,000 miles, the system will not re-set correctly, then the next change it only resets to 0. I thought the sensor went bad so I changed it out; only to later discover BMW's stupidity. BMW says they have a fix, but it doesn't work. The dealer had my car for 8 days tying to install the software fix. Your car then tells you the oil service is past due every time you start it. I posted a thread on this back in September last year. |
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07-27-2014, 08:10 AM | #9 |
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OP, you should read the owners manual because your question is explained there. However you are making the mistake a lot of people do, they think the e-dipstick shows the quantity of the entire compliment of oil in the engine. What it does report on is the level of the top quart (7th quart) in the engine. The bar graph is analogous to the hatch marks on a mechanical dipstick. As long as there is an oil mark between the upper and lower ends of the hatch marks, the engine has a safe level of oil in it.
With BMW's e-dipstick, the system is programmed to recognize addition of oil in 1 qt. increments, which is why BMW recommends adding oil in 1 qt. increments because it is easier for the system to recalculate the oil level. The system updates the oil level every 5 minutes or so, so if you start adding oil in small increments you can possibly overfill the engine with oil because the system doesn't react quickly to oil level changes. Follow BMW's recommendations on when to add 1 quart of oil. If you do, you'll never risk overfilling the engine with oil. The oil monitoring system has a static oil level check performed each time the ignition is energized. If the engine has an unsafe level of oil in it, the car will notify you. |
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07-27-2014, 08:25 AM | #10 |
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07-27-2014, 09:08 AM | #12 | |
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07-27-2014, 11:34 AM | #13 | |
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Motor/Engine. The difference is subtle, but they are mostly synonymous now. I used to always think of "electric motor", or "gasoline engine". You never hear of an "Electric Engine". To me, Engine means "internal combustion". Maybe I'm just old school, old dog. http://engineering.mit.edu/ask/what%...tor-and-engine
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07-27-2014, 11:55 AM | #14 |
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The scale is 1 quart (supposedly) but the resolution is more.
The scale is 1 quart (supposedly) but the resolution is more.
I estimate that ones segment is 150 to 200 milliliters. Whats makes this frustrating is that it seems to update when it wants to and not in any particular amount of time. Mostly when I add oil it takes a 20 minutes or more and may take several drives to settle in at a constant value . If you don't know this it makes difficult to top off.(Its actually difficult anyway) Also the warranty manual says or ,used to , says the car is suppose to get and oil change once a year regardless of miles driven . (Many in warranty don't know or care they are actually entitled to this) This is something that seems to get ignored by some dealerships and most owners. |
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07-27-2014, 05:08 PM | #15 | |
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07-27-2014, 10:48 PM | #16 |
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funny.
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Bought 08/09/2013@53,340mi Current 3/13/2019@206,283mi Fail(s): tstat hous/water pump 89k, Chargepipe 106k, coolant tank 114k, FRM3 114k Maint: Walnut blast 101k, Trans/T-case Fluid 103k, OFHG 195k |
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