A6 Oil Consumption: 3.0L DDVB Engine

The A6 currently has less than 20,000 km on the odometer. Within a distance of approximately 8,000 km, the oil level has decreased by about 80%. According to the car dealership, an oil consumption of 0.5 liters per 1,000 km is within the manufacturer's tolerance.

The car dealership initially only performed a visual inspection for leaks, which revealed negative findings. The car is still under warranty. In my opinion, the oil consumption is too high.

Are there any particular anomalies or issues associated with this engine?

Quote:

The oil level has decreased by approximately 80%.

Are you referring to the range between the minimum and maximum readings on the display? The difference will likely not exceed 1.5 liters, even with the V6 engine. Therefore, the consumption would be approximately 1 liter per 8000 kilometers.
hg
Herbert.

For me, it's completely within the normal range, but it might be because I got used to dealing with oil consumption of up to 1 liter per 1000 km almost 40 years ago; the limit according to VAG was 1.5 liters per 1000 km back then.

Back then, BMWs (especially those from the 02 series) were often nicknamed "BMÖl" because of the typical blue smoke they emitted.

I taught my daughter, at her swimming lessons, to immediately tell the instructor if she starts to feel uncomfortable or if she needs help.

Herbert wrote:

Do you mean the level between the minimum and maximum of the display?

Okay. Audi says that the difference between the minimum and maximum should be 1 liter. We'll see, because my brother-in-law now has to document the fuel consumption.

I know the consumption isn't dramatic. However, I still find it too much for a new and modern car. His older A6 3.0 TDI with 330,000 km on the odometer consumed less oil.

Can anyone tell me which Shell Helix Ultra oil is used by Audi? It's important to ensure that the same type of oil is used for topping up.

Unfortunately, the car dealership is not able to .

The answer is simply:

You can use the following oils for your vehicle:


Shell Helix Ultra ECT C2 C3 SAE 0W-30 50400/50700

Shell Helix Ultra Professional AV-L SAE 0W-30, meeting specifications 50400/50700.

Hello Andreas,

The hybrid draft horse that your brother-in-law owns requires an engine oil with the manufacturer's approval VW 507 00.

According to the manufacturer, a long-life engine oil of the 3rd generation is used. SAE 0W-30.

Filling capacity with filter: 6.10 L.

You can find the oil in the parts catalog under part number.

G S55 545 D2

again.

Otherwise, this model occasionally has problems with the accurate display of the oil level.

Please refer to TPI: 2040749/5 for more information.


An "low oil level" warning can appear even when the actual oil level is still approximately 25% above the minimum level.


If oil is added now, it could lead to overfilling.

If there is excessive oil, it can cause the oil level sensor to malfunction, which may trigger an unwarranted "oil level too low" warning.


What does that mean for your brother-in-law?

If he really wants to make the effort to document the oil consumption, he will need an oil dipstick again. (It costs approximately 20.00 €).

The readings in VCDS fluctuate daily and do not provide a 100% accurate picture.


If it is not a leased vehicle, I can recommend a ceramic additive based on my experience.

Does that help you?

Best regards,

Michael.

What do you think about "keeping things simple"? The car dealership has no way of knowing exactly what information Audi entered into the manufacturing date field.
Either adhere to the specifications outlined in the operating manual when topping up (which is how I do it), or drain all the oil and refill with new oil, plus purchase a reserve so that exactly this oil is used for topping up. Ideally, you should also perform an engine flush .
The DDVB isn't really anything special.
What is a hybrid draft horse?
hg
Herbert.

Thank you for the information.

The Audi is not a leased vehicle, but it still has a warranty. Therefore, I suspect we should avoid using ceramic additives. Just out of curiosity: which one would you recommend?

How much effort is required to upgrade this measuring device?

Herbert wrote:

The DDVB isn't really anything special. What is a hybrid draft horse? hg Herbert

And you're right, Herbert .

That wasn't entirely serious on my part. The "flagship" model is called the Audi A6 50 TDI Hybrid Quattro... It sounds like it has endless power... and in reality, the engine has significantly less power than the old biturbo. - Whatever.

Back to the topic:

The oil dipstick tube, which is already part of the engine, is used to drain the engine oil. It has a plug in it.

There is no longer a dipstick that remains permanently in the engine.
The device is called the KD-Peilstab T40178 and is only used for temporary checks.

Since it's not a leased vehicle, I would follow Herbert's advice. I would do a proper oil change with an engine flush. Then, I would carefully fill in the correct amount of oil and observe how it performs.


I personally use Liqui Moly products, but I can't say whether they are better or worse than other brands.
I think the technical hotline and support are good.



Best regards,

Michael.

As of now, with approximately 32,000 km on the odometer: My brother-in-law has added 0.8 liters of oil twice within the last 21,000 km. This was indicated by the on-board computer, so without using a dipstick.

Perhaps this is the new contribution to environmental protection for a modern engine .

Just a note: He should ideally aim to change the oil every 15,000 km if he values his engine.

Rüdi wrote:

Just as a note, he should really aim to change the oil every 15,000 km at most if he values his engine

.

That's always a good idea. However, it will only mitigate the wear and tear, because I still believe that something is wrong with the engine.

Has anything substantial been changed in this engine compared to its predecessors? Not that we're going to end up with a major engine failure like with AMG, where it happens at 80,000 to 150,000 miles, due to the high-strength Alusil coating on the cylinder walls .

It's perfectly normal for an engine to burn a certain amount of oil, as a 100% seal is not possible. However, a mechanic specializing in engine repairs might be able to explain this better.

Here's the translation:

"The fact is that there's always some fuel, water, and soot entering the engine oil, which destroys the additives and thus promotes wear. And in this way, every owner contributes to internal engine wear through the use of long-life oil."

"As a good example, I have a neighbor's A4 that I maintain, and it currently has approximately 675,000 kilometers on the odometer. It gets an oil change every 15,000 kilometers, and I've observed that it consumes almost no engine oil for the first 10-12,000 kilometers. However, in the last few thousand kilometers, I have to add about half a liter of oil. After the oil change, the consumption returns to zero."

"I completely agree with you. Your statement has been true since the invention of internal combustion engines. However, in my opinion, it's not possible that his old car (with a 3.0L V6 TDI engine and over 330,000 km) consumed significantly less oil than the new engine after only 30,000 km."

Therefore, I'm particularly interested in whether anything was "improved in a way that made it worse" in the "construction/coating of the engine." The numerous plastic parts and cost-cutting measures in terms of handling, which are primarily noticeable, don't exactly inspire confidence.

You can have two identical cars with identical engines, one that uses 0.00 liters of oil, and the other that uses 0.2 liters per 1000 km... and how are you supposed to explain that, other than by manufacturing tolerances?

Then, the ASB has a completely different type of fuel injection and, above all, exhaust gas treatment compared to the current engine.

The engine oil is subjected to much greater stress and, consequently, becomes more contaminated, which in turn leads to increased wear and tear, especially when the engine oil loses its original lubricating properties.

An oil analysis of both engines, performed at the appropriate mileage, could provide valuable insights.