m3bs

I also used the V3 on my 981 3.8, and the readings were as expected….higher number, higher level. Is the sensor inverted on the 4.0?

Give me a dipstick!

worf928

More like the software is inverted

My post was based on a ‘21 2.0 and a ‘16 991 3.8. The 4.0 isn’t due until May. The 3.8 is the same ECU generation as your 981 (which would be a GT4 if it has the 3.8.)

The “highest” reading I observed was just after oil fill with engine off. Then starting and running the engine, the reading reduced significantly (due to I assume oil being removed from the (ahem… integrated) sump.)

Then, when adding oil the ‘running’ reading would go down.

<shrug>

I’ll go back and check my notes to verify my memory. But, IIRC it was a “don’t mostly make no sense” thing.

I do remember distinctly seeing both the under-fill warning on the 2.0 followed, a half-quart later, by the over-fill warning only to have the later be replaced by a half-full (-ish) display after an engine start cycle and warm up.


No $h1+.

There’s a special VAG tool for the Macan for assisting in oil changes.

It’s a …

wait for it

… dip stick.

GrantG

I think Porsche abandoned the dipstick because it did fail in many people's hands (including employees). With the Integrated (Wet) Sump cars, you measure the oil with the engine stopped and the oil cold. And with the True Dry Sump cars, you measure the oil with the engine idling at full operating temperature. Porsche developed the computerized system to remove the human error (annoyingly, the dumb people ruined it for the rest of us).

In the air-cooled 911, Porsche improved the weight distribution in the 1972 models by moving the oil tank further forward and was accessed by a little filler door. Lots of people poured gasoline in the oil tank filler and so Porsche had to abandon this objectively better system after one year due to human incompetence...

pinion

With low tension rings, thin oil for fuel economy, and hard use; oil consumption is going to occur. Someone would run their engine dangerously low on oil so they need a sensor… and in typical German precision anything worth measuring is worth optimizing… and now here we are.

c1pher

So the CEL is due to a failed radiator fan. Waiting for the part to come in. Hopefully a relatively easy repair.

street

You folks are lucky. Mine goes in for an oil change after clocking 600 miles since last change and I get new air filter, cabin air filter, and wiper blades. This is all part of the "2 Year Service" my dealer now features. Car has a total of 2,600 miles on it. Oil changes no longer available ala carte. Our one and only local dealer books 2 to 3 weeks out and turnaround is a minimum of 72 hours because they are swamped with SUV service. They always screw up something and I have to go back. They overfilled my GT3 and triggered a warning light on the drive home.. Factory says run 200 cc below full for track days.

Back on topic, no need to have car sit after an oil fill. Reading on level is instantaneous on all Porsches, dry sump and wet sump.

adsingl

Hopefully they've 1. acquired all the proper equipment for the newest refrigerant - more or less propane with anti-flamatories added) and 2. Learned some thing about the very minor changes (small extra accumulator) since 2018. I had my wife's Q5 lemoned because .... well, tldr version: they couldn't fix the AC!
I was laughing at them telling them they could get a sniffer for this new refrigerant at Graingers for $7xx. when they said they were waiting on a (2nd, first piece was evac/fill machine they said cost $50k from Germany) sniffer for something like $10k. After I finally called customer retention, before I could give them my speil they said " Mr. S, we'd ike to get you a new Q5".
Right answer! Also added some ppf and sent us ...forget, $250/300, told me to take my wife (her car) out for dinner.
Since they couldn't match our gray interior and tow hitch in the US, they had to build it so we drove their Q5 loaner for a good 3 months!
Zero trouble with the 2nd one! Good luck!

adsingl

Don't have my GT4 yet, but 2019 GTS/2.5T won't read until it's warm, takes even longer right after an oil change for unknown reasons. Some message like "oil level not available". My friend's same spec car is same.

adsingl

In my youth, working in garage, I've seen two engines seize. Both running, one making a bit of noise, other not. Turn them off, won't crank. Open hood, everything seems hot, no oil showing on dipstick! Utter shock by both owners. Really felt bad for one woman, car, kids, appearances seemed she probably couldn't even afford the next quart ...
Nothing to be done at that point.

TXshaggy

Yes, the in car measurement requires a certain set of conditions. My 21MY 718 OM outlines those conditions.

However I believe the Porsche service equipment doesn’t require the same conditions.

worf928

Oh, it does. But, it’s like getting a reading from a Ouija board.

worf928

Not since the dip sticks were removed.

Reedy

It's not only Porsche service equipment, a $20 bluetooth OBD scan tool can give you a live reading of the oil level.