First of all a short and concise idea of me, will of course introduce me in the EIngangshalle (if available) more precisely
My name is Daniel, I'm 23 years old, I'm studying now (yes, sounds funny...) after my apprenticeship as a bank clerk, at a university of applied sciences mechatronics.After driving a Toyota Supra MK4 for a long time, I got this nice engine conversion, I had to break up with her because of my studies and decided to use a very nice S6 4B Avant with LPG.
So far, I am still absolutely thrilled by the car, it is really fully equipped and has an absolute TRAUMZUSTAND for its mileage (with exactly 200 tkm).
But then the problem started:
In order to do something "good" to the car, as one hears a lot about the automatic problems of the S6 (among other things..), I had the transmission oil changed in a NOT Audi workshop. The predecessor has already done this once, so I had also decided for the car, although he still did the 1. Gears in it.
After the ebbed workshop changed the oil, it didn't take a day and our farm was stained with gear oil. It exited from the "last" Simmerring to the ardanwelle / rear axle. Fortunately, this damage was repaired with a transmission flushing and refilling at the expense of the said workshop at a large AUDi dealer. The workshop had also changed the SImmerring.
The whole is now ca. Four months ago. Yesterday I am about. Driven 270 km, since my father and I looked at another Audi for him when we were driving at home on the farm, I heard a VERY loud "bubbling" or "glooming" sound coming under the car!
It was NOT speed dependent , did NOT change after gear position (i.e. D, R, N etc.) and was not dependent on automatic climate control or similar. After we shut down the motor, the sound was heard in this volume for another 5 seconds, then it became quieter and stopped. After the car was standing there was a "Blubb".
Now the interesting thing:
- The car won't lose any oil! It's dry!
- Cooling water level is unchanged
- The car was standing today after the Vilele driving, the noise was completely WAY!
- The gearbox switches perfectly, no slipping through the converter or similar!
- Gang changes are buttery!
- Today I went to a friend who is also very familiar with the Audi V8 models and tried to bring the gearbox to the right temperature. 15 km drive to him, 5 km "round" with wild gear to test, 7 - 8 km highway ride at 230 kmh at full throttle did not use anything - the sound seems to be gone
- also the "quiet second Blubb" in the stand with the engine on display was no longer there
Now the question: What for heaven's sake could that have been?
Since I have had some bad luck with the car in some cases, I have become all the more attentive, so I am interested in what it was!
If I had to describe the sound with my own words, I would do it like this:
From above it sounds like an irregular curl, but as soon as you put yourself under the car, you can hear VERY NIGHT that it is a "blabbering" as if a large, moving mechanism would pop into a "can of oil". The sound was definitive NOT audible in the engine compartment, it came very precisely from the direction of the Kats! The second bubble, which could be heard after the engine was turned off, was not a drop, which dripped on something, but rather like a bubble, which rises from the ground to the top and evokes corresponding "blubb noise" on the oil (?) surface.
We have thought a lot, have not come to any conclusion, have only the following idea:
It could be that by changing oil before approx. 3-4 months an airlock that has now dissolved causes these sounds?
IBin gespannt, was Ihr dazu sagt!
Thank you very much,
Daniel
