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A6 diesel engines

  • 20-10-2018 6:57am
    #1
    Registered Users Posts: 16,386 ✭✭✭✭ Trojan
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    I’m looking at 2007-2010 A6 diesel automatic as my next cruiser. There seems to be 3 engine sizes, 2.0, 2.7 & 3.0. There could be other variations in there too.

    Are there any of these significantly better or worse than the others? Anything else I should look out for on these?

    (All else being equal I’m looking at getting a post 2008 2.0.)


Comments

  • Registered Users Posts: 9,563 ✭✭✭ tossy
    Registered User


    If you can get one with a decent service history and post 08 tax the pick of the bunch is an automatic quattro 3.0.

    The 2.0 TDI suffers from problems with oil pump failing.
    The manual gearbox in these cars is generally a good box but the Automatic gearbox in the 2.0TDI FWD versions is also prone to trouble.
    The auto boxes on the quattro versions is a different type of box and generally much more reliable.

    A car like that i would buy on mileage and service history - not price, most examples for sale now will be leggy and poorly maintained, there was a facelift in 2011 which is a far better car the auto boxes were improved and no issues with oil pumps.


  • Registered Users Posts: 16,386 ✭✭✭✭ Trojan
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    tossy wrote: »
    If you can get one with a decent service history and post 08 tax the pick of the bunch is an automatic quattro 3.0.

    The 2.0 TDI suffers from problems with oil pump failing.
    The manual gearbox in these cars is generally a good box but the Automatic gearbox in the 2.0TDI FWD versions is also prone to trouble.
    The auto boxes on the quattro versions is a different type of box and generally much more reliable.

    A car like that i would buy on mileage and service history - not price, most examples for sale now will be leggy and poorly maintained, there was a facelift in 2011 which is a far better car the auto boxes were improved and no issues with oil pumps.


    Thanks for the detail, much appreciated.

    The 2011+ will be out of my price range. Should I be looking elsewhere with a 3-4K budget? Is there anything here that is worth considering? https://www.donedeal.ie/cars?sort=price%20desc&bodyType=Cabriolet&bodyType=Coupe&bodyType=Saloon&bodyType=Hatchback&bodyType=Estate&bodyType=SUV&country=Ireland&transmission=Automatic&fuelType=Diesel&make=Audi;model:A5,A6,A7,A8&year_from=2007&price_from=1000&engine_to=3&price_to=4800&engine_from=1.9&alertId=673351&saved


  • Registered Users Posts: 50,148 ✭✭✭✭ bazz26
    Registered User


    I'd say you will even struggle to get a 2009 onwards facelift model on that budget unless it's got mega mileage on it. If I was going 2.0 litre then I'd go with the manual as the multitronic gearbox was never known for being reliable.

    Another thing with the pre 2009 facelift 2.0 litre models that 2.0 litre PD engine has known issues with the oil pump balance shaft so look for evidence that it was replaced at some stage.

    This 2.0 litre looks tidy:
    https://www.carsireland.ie/detail.php?ad_id=2115031&r=s.php%3Fm%3D7%26o%3D45%26r%3D2008%26pp%3D50%26g%3D0

    Or if you don't mind the high motor tax then this 2.7 litre:
    https://www.carsireland.ie/detail.php?ad_id=2123409&r=s.php%3Fm%3D7%26o%3D45%26r%3D2007%26pp%3D50%26g%3D0

    And a 3.0litre:
    https://www.donedeal.ie/cars-for-sale/audi-a6-2008/19984149


  • Registered Users Posts: 25,633 ✭✭✭✭ GreeBo
    Registered User


    How long ate you gong to keep it?
    Wouldn't a 2009 pay for itself tax wise in a few years?
    I have 2009 2.0 tdi sline import and it's a lovely car


  • Registered Users Posts: 16,386 ✭✭✭✭ Trojan
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    I thought I'd be waiting to change cars until after I saw how the the NCT on the 9-5 went next month, but it decided otherwise today and left me looking for a tow-truck again.

    So I bought a 2008 3.0L auto diesel quattro like the last one listed above. Very good service history, single owner car, with good premium tyres which I read as a good sign. The tax bill is a bit more pricey than the 2.0t petrol but that'll be more than offset by VAT savings.

    Thanks for the help here.


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  • Registered Users Posts: 16,386 ✭✭✭✭ Trojan
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    fXVopLWh.jpg

    Lovely to drive. We'll see how it goes!


  • Registered Users Posts: 25,633 ✭✭✭✭ GreeBo
    Registered User


    Looks tasty, nice rims.

    Well wear.


  • Registered Users Posts: 9,563 ✭✭✭ tossy
    Registered User


    Fine car, well wear.


  • Registered Users Posts: 16,386 ✭✭✭✭ Trojan
    Ask me about websites


    Just posting an update on this one. I bought this in Oct 2018. It had ~290,000km. 3.0L auto Quattro and cost €3750.

    fXVopLWh.jpg

    It's just passed the NCT again with 380,000km on the clock and is going strong.

    It's had a few services, consumables like a couple sets of tyres (Sports Contact this time, RainSport 3 the first time), and brake pads. I don't know if a control arm on the front counts as a consumable, but apart from that, it's had zero issues - touch wood!

    So thanks to everyone who contributed to this thread and especially for pointing me at the 3.0L.


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