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Refill oil every 5,000 km in Audi A4 40 TDI
13-04-2022, 21:55 PM,
Post: #11
RE: Refill oil every 5,000 km in Audi A4 40 TDI
Most newer Audi diesel engines have oil consumption.
With 1 litre per 5000 km, the workshop will not be able to do anything.
Not because they don't want to, but because the manufacturer Audi doesn't recognise it as a defect in such a case.
With Porsche it is sometimes even worse, about 1.5 litres per 1000 km.

The long-life oils are usually the reason for this. I would change to an oil with 5W-40 after the warranty. And then change it every 15,000 km, if possible change it now every 15,000 km.


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[+] 1 user says Thank You to Dana for this post
26-04-2022, 18:25 PM,
Post: #12
RE: Refill oil every 5,000 km in Audi A4 40 TDI
What oil viscosity do you use? I notice a lot issue after they lower the oil viscosity in alla VAG cars.
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23-10-2022, 10:06 AM,
Post: #13
RE: Refill oil every 5,000 km in Audi A4 40 TDI
5W-40 Castrol (audi support)
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20-11-2022, 10:32 AM,
Post: #14
RE: Refill oil every 5,000 km in Audi A4 40 TDI
Had you got any idea? still waste oil
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20-11-2022, 11:52 AM,
Post: #15
RE: Refill oil every 5,000 km in Audi A4 40 TDI
As loki said: Check the Turbo and piston rings.
Had also once that the Crankcase ventilation system had an error.
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