Bouncing Oil Level in MMI
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Not sure how many have noticed this phenomenon.
So here is what I mean by bouncing oil level in MMI.
1. After a drive 10 days ago, I checked oil level and it was at max.
2. Five days ago after a drive it was showing about a 1/3rd below max.
3. Three days ago before drive it was 2/3rd below max. After driving went back up and was 1/3 rd below max.
4. This morning with cold engine the oil level was a hair below max.
2nd and 3rd point I can rationalize and understand. The weird, part is point # 4 above.
I guess some special "Audi Oil Fairy" came in the middle of the night and topped up the oil.
Wonder what is going on here.
The difference between min and max according to dealer is only about 1 liter.
ad2005
So here is what I mean by bouncing oil level in MMI.
1. After a drive 10 days ago, I checked oil level and it was at max.
2. Five days ago after a drive it was showing about a 1/3rd below max.
3. Three days ago before drive it was 2/3rd below max. After driving went back up and was 1/3 rd below max.
4. This morning with cold engine the oil level was a hair below max.
2nd and 3rd point I can rationalize and understand. The weird, part is point # 4 above.
I guess some special "Audi Oil Fairy" came in the middle of the night and topped up the oil.
Wonder what is going on here.
The difference between min and max according to dealer is only about 1 liter.
ad2005
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Haven't driven it today and right now its a hair above max.
So, elevation hasn't changed at all. It is on flat surface in the garage.
So what the expasion coeff of oil when heated. The outside temp this morning was 70F and right now it is 85F.
So theoretically temp can have an effect and change volume.
Good physics question.
ad2005
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Have checked it in early morning and few hrs after a drive and the levels are different.
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Yes it should stay same, however the level also depends on whether your park surface is flat or tilted. My driveway has a slight tilt towards the right and the oil level always fluctuates.
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Its parked on flat level surface in a garage, not on a driveway with a little elevation.
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