Question about 1993 BMW 5 Series

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1993 525 with 87k miles. Oil dipstick shows nearly full, but engine oil light comes on. I'm taking it in right away, as this is a concern, but what could it be if the oil is full?

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  • jnoolas May 15, 2009

    One of those sounds like an expensive fix, the other, not so much. At least I know what the likely answers will be, thx.

  • its420_us May 11, 2010

    Could be a bad oil pressure sending unit, or a bad oil pump.



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The engine oil light measures oil pressure rather than volume. The senosr couldf be bad or your oil pump could be failing

Posted on May 15, 2009


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Why is my Audi A4 2010 petrol only doing about 300 miles before oil light comes on

2 questions.
1) Is the oil actually low on the dipstick?
If it is, you might have an oil leak, so you would need to look underneath and see. Also look for puddles when you park.
The most common reason for such consumption would be a burst oil pressure switch, or a leaking valve cover gasket.
Either of these will leak lots of oil.
The last possible reasons, which are really rare, would be engine parts defective,( like oil rings), or a leak in the brake booster which would suck oil from the crankcase into the brake booster.
2) If the oil is not leaking out, and the dipstick shows full, you will be needing a new oil pressure switch, or to have the electronics repaired.
God bless your efforts.

Jul 07, 2016 | 2010 Audi A4

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My low oil light and chime comes on when making even the slightest left turn, not right

it could just be a failing oil level sensor but it could be clogged up oil return passages
check the oil passages this way. first check you oil cold and fill to full, the drive your car until the can get the light to go on , pull over right away ,pop the hood and check the oil again , you have to do this fast like right then!, all within like 60 seconds from the time you shut it off till you know what the dipstick says!
if it's low you have oil being held up in the valve cover area this is most likely due to someone not doing oil changes regularly.
start doing oil changes. really often like every 2000 miles or so. this should clean your engine out
also take note of how quickly your engine oil turns black after an oil change , you should still be able to see through it on the dipstick for over a 1000 miles or more , if not you have dirty engine.

Feb 01, 2016 | Cars & Trucks

1 Answer

Oil light is on

check oil level on dipstick under hood with engine off. oil level will show on dipstick when removed.add oil as needed,DO NOT OVERFILL 1/4 inch low can be 1/4 quart low on oil. add oil as needed oil light comes on when low on oil,,,,,,worst case is no oil pressure,,,if oil is full,,DO NOT START AS YOU MAY HAVE A BAD OIL PUMP in which case if you run engine,,it blows.. if you have a oil light,check oil 1st,than if it's full,check oil sending unit,if good then move on to oil pump,,,,thank you for choosing fixya.comk

Sep 17, 2011 | 1999 Toyota RAV4

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Have you ever heard of the engine oil reservoir being full and the dipstick reading empty? I just bought an old 1985 toyota pickup truck and it was fine until I had my oil changed. After driving for a...

When your car is low on oil, there is a sensor (sometimes called a switch, as well) that will light up an indicator inside the car to inform you of the low oil level. In some cases, checking the dipstick will show that there is actually oil present, which can be confusing and frustrating because it contradicts the sensor. If this happens to be the case, more than likely the oil pressure switch/sensor is malfunctioning and will need replacing.

Keep us updated.

Nov 15, 2010 | Toyota Pickup Cars & Trucks

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5W30...You mean the OIL LIGHT? Engine light is different that the oil light. The Ck Engine Light wont go on because oil is low. You cant drive the car with the oil light on, SEVERE ENGINE DAMAGE WILL RESULT.

Dec 18, 2009 | 2000 Jeep Grand Cherokee

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Two month ago my engine light came on and two days later my oil gage came on too i did the oil change and the engine light wen away now i have the same problem with the engine light the first time i did...

A few items come to mind...first, check engine oil for fuel contamination. If you're not sure after a "smell test",
Put a drop on a piece of looseleaf paper. Put a drop of fresh unused oil on another paper. If the old oil forms a wider stain that seems to have a "halo" around it, when compared to the fresh oil, most likely it has fuel in it.When doing these tests use only cold oil. Warm oil will spread faster and give a false reading.
Do a simple "rub test" wipe the dipstick between your thumb and forefinger and rub your fingers together. Repeat with fresh oil. If there is a substantial difference in the "oilyness" between the two, then the oil has broken down. The difference will be extremely obvious if fuel contaminated.
If you determine a fuel problem exists, it likely is from a leaking injector. If the oil is just deteriorated, try using a better quality oil, and definitely nothing with a 5w first number (unless it's a full synthetic). I'd use a 40 as the second number.

Oct 09, 2009 | 2003 Chevrolet Impala

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Indicator light said check transmition

Is it the check engine light or the oil light coming on? Where is your dipstick? and if it is the oil light, put a quart of oil in before you go anywhere and then buy a dipstick. If it is the service engine light only just drive it for 20 miles without a problem.

Aug 03, 2009 | 2003 Mercury Mountaineer

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Oil fill light

i am pretty sure the oil light comes on when the key is turned to the ON position, then goes out after it starts (providing oil quantity is not low). if it stays on after it starts, then may be an issue with sending unit.

mention it to the dealer when you take it in and they should be able to further diagnose.

BTW, what service is it going in for is oil service was performed 5000 miles ago?

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1 Answer

Light on dash

I believe this is the oil pressure light and the helicopter is a picture of the motor. Please check you have sufficient oil in the engine.
1. If on - turn off the engine. wait for half an hour for it to cool.
2. Check the dipstick has the oil showing on it between the two scored marks, near the bottom of it.
3. if the oil shows near the tip at the end of the stick or below the scored line, please put oil in the engine before driving away.
4. Consult the user manual or an engineer on how to add new oil.

Jul 16, 2008 | 2001 Ford Focus

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