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Question of the Day: Have you ever ordered a product online and received a fake knock-off?
Audi A3 oil consumption
- Thread starter Adenoid Hynkel
- Start date
RogueTr00per
Honorary Master
Why would they do that? You obviously haven't been following the thread from the start.
qscwbt
Expert Member
- Joined
- Feb 24, 2014
- Messages
- 3,486
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- 2,300
Hi SD
I hope they fix it. A car should use very little oil between services. Most of this oil lost is via crank and head breathing. Most manufacturers to protect them self's say that 1 litre per 1000km is acceptable. Just for that 1 or 2 cars that slip through with bad a tolerance. But still bad on there side.
If they said to you 500 ml per 1000 km and you almost went a litre lost they should cover all costs.
Personally based on my own opinion I feel that you probably have a ring land issue. thanks to our poor fuel. Second issue is the piston.
The most common piston found in production car engines, is constructed from a Eutectic alloy. The term Eutectic mean that the piston allow contains around 12.5% silicon. This is just about the point of total dissolved silicon saturation. With older piston designs which have conventional ring lands, there is little need to have any more than this simple, reliable material which has served the industry so well for so long. In fact all the worldwide passenger car engine manufactures we know of still use the 12.5 per cent alloy.
With Hypereutectic pistons, the primary reason for having all of this free silicon is to reduce piston ring groove wear. This allows piston designers to move the top compression ring much farther up the side of the piston (where combustion temperatures are much hotter), and run much smaller, thinner piston ring lands (the metal section separating the ring grooves). The reason piston designers want to do this is that it allows a lighter piston to be produced, and also has dramatic results in changing engine emission characteristics.
All well and dandy but in our hot climate and poor fuel quality the pistons don't last. Add some force fed boost to the mix and ring lands die.
I hope they fix it. A car should use very little oil between services. Most of this oil lost is via crank and head breathing. Most manufacturers to protect them self's say that 1 litre per 1000km is acceptable. Just for that 1 or 2 cars that slip through with bad a tolerance. But still bad on there side.
If they said to you 500 ml per 1000 km and you almost went a litre lost they should cover all costs.
Personally based on my own opinion I feel that you probably have a ring land issue. thanks to our poor fuel. Second issue is the piston.
The most common piston found in production car engines, is constructed from a Eutectic alloy. The term Eutectic mean that the piston allow contains around 12.5% silicon. This is just about the point of total dissolved silicon saturation. With older piston designs which have conventional ring lands, there is little need to have any more than this simple, reliable material which has served the industry so well for so long. In fact all the worldwide passenger car engine manufactures we know of still use the 12.5 per cent alloy.
With Hypereutectic pistons, the primary reason for having all of this free silicon is to reduce piston ring groove wear. This allows piston designers to move the top compression ring much farther up the side of the piston (where combustion temperatures are much hotter), and run much smaller, thinner piston ring lands (the metal section separating the ring grooves). The reason piston designers want to do this is that it allows a lighter piston to be produced, and also has dramatic results in changing engine emission characteristics.
All well and dandy but in our hot climate and poor fuel quality the pistons don't last. Add some force fed boost to the mix and ring lands die.
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Arthur Morgan
Expert Member
What were the results of the test OP?
RogueTr00per
Honorary Master
OP got sorted, post #90
I however have to fight them (initial feedback was that it's my problem due to the age of the vehicle), have to phone them tomorrow. My A3 is 6 years old and 71,000km and some change.
Plus the dealership in question overfilled my oil after the test. Dipstick showing half a cm above the max line!!
Arthur Morgan
Expert Member
Sorry, I meant you. That's a lousy excuse as usual from VAG. I probably sound like a broken record but my 2.5 year old Golf with just over 60,000km at the time had the same issue so it cannot be age (unless they only expect their products to last 6 years?).
I eventually cut my losses after their 100k repair didn't fix the problem. Hope they at least sort you out.
kripstoe
Expert Member
Which Audi dealership?
RogueTr00per
Honorary Master
Well the excessively high oil consumption is noted and they quoted me 68k for the "recommended repair" to replace the pistons and rings, as well as the bearings and timing chain.
PM'ed you, which you replied to
neilronaldson
Senior Member
Have you done a compression test - or asked the garage to carry out a compression test and show you the results?
Kloofvreter
Honorary Master
:crylaugh: Are they fcking stupid, charging those prices? Tsek!
Who is liable for this? You?
RogueTr00per
Honorary Master
Yes, they want me to foot the bill. The car is out of Audi maintenance plan but the question is why is a car with 71k on the clock experiencing engine failure!
Nope. I think as some have mentioned, Audi dealerships really have no clue about certain things!
Kloofvreter
Honorary Master
:crylaugh:
Arthur Morgan
Expert Member
I think this is a design fault and a recall should've been done long ago on these engines but they'll never admit there's an inherent problem of course.
Some manufacturers will find any excuse to void the warranty even if it includes things like octane booster etc.Know i guy with a new subaru that had to get a new engine covered by warranty.They sent the ecu logs etc to Japan.They told him if he put octane booster in they would have voided his warranty.
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RogueTr00per
Honorary Master
Usually unleaded 95. Why do you ask?
