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  1. #1
    Established Member Two Rings
    Join Date
    Jun 19 2012
    AZ Member #
    95503
    My Garage
    06’ A8L 4.2L, 04' 330CIC, 91’ Corrado 1.8T, 10' Q5 3.2L,
    Location
    Long Island, NY

    Considering a 3.2L C6 A6 - advice on reliability?

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    Looking at buying either a B8 A4 or a C6 A6 both with a 3.2L Auto. I posted in the B8 section, however, I noticed that 3.2L's are much more common in A6's so I figured I would post here for a better response.

    I'm mechanically capable and very comfortable under the hood, but this car is for my fiancé and I don't need her stranded on the side of the road or for me to fixing it constantly.

    I should note most cars I'm looking at are around 100k due to age at this point. I'm buying something with the intention of it lasting till 200k - exactly what I did with my current A4 up in the 190's now.

    I've learned about 3.2L:

    1. Upper chain tensioners and guides go- can be repaired while in the motor. Chain stretch can be checked with Vagcom.

    2. Cabon buildup in intake manifold - not a big deal to clean it IMO.

    3. Valve cover gaskets from the factory are silicone, replace with rubber- I'm OK with that too.


    Any other major issues with these motors? Or any purchase advice? It seems that the 2.0T is grenade in comparison to a 3.2L.


    Thanks!

  2. #2
    Senior Member Three Rings
    Join Date
    May 23 2016
    AZ Member #
    373689
    Location
    Edmond, OK

    In general terms, you got the bulk of it!

    One thing though, original VC gaskets were and still are rubber. I think where you're getting that from is that the rear timing covers are siliconed, no gasket goes there. Regardless, you can expect the VC gaskets, timing covers, camshaft control solenoid o-rings, and oil filter housing to leak. Just a matter of time so count on it. VC gaskets were cake to change, so are the o-rings for the cam control solenoids (see http://www.audizine.com/forum/showth...olenoids-Fixed for reference), the timing covers are technically easy to do but can be a bitch to access if you have big hands (I actually have to do them along with the oil filter housing in the next few weekends sometime).

    Unlike other engines, our coils do not go bad often at all. It still happens, but nowhere as frequent as with the 2.0T crowd for example.

    The headlights suck. Plain and simple lol. Changing the HIDs for some fresh bulbs and keeping your housing lens polished (not yellow and cruddy) helps but even still, lights suck. They use a very hazy E55 projector lens. People here have just recently started to attempt retrofits to actual clear lenses. They are not as useless as 2000s Chrysler headlights and you'll get by, but when you're next to an Acura or a 370Z and your lights' output gets lost in theirs... lol.

    Oh! speaking of headlights, if the A6 has AFS (the "auto-leveling/ turning with the steering wheel" system), chances are you will have a trouble code for it. VERY common. Lights still work as normal lights. Usually it's the side-to-side motor's harness that gets chaffed against something and shorts out (some brilliant engineer thought X was the perfect length for that portion of the headlight sub-harness without taking into account it would need additional slack for left-right movement). Again, your lights will still work like normal, and will still auto-level, but you'll have that annoying trouble code on the dash and unfortunately VAGCOM can't turn it off. Only way to really fix it is to cut open the headlights and re-solder the shorted/ cut wires, or buy new headlights.

    Other than those things, honestly my car has been very reliable. It's a big tank but in Sport mode it really doesn't feel that way. Especially if you tighten things up by upgrading brakes and throwing an aftermarket suspension (if the fiance allows you to lol, I wish my wife would let me put the OE GLI suspension in her Jetta SE ). This big 4000lb car gets me a solid 29mpg cruising at 75mph on road trips (with the wife, 2 big dogs, and luggage in the trunk).

    Good luck on the hunt!

    CURRENT- 11 BMW 535i M-sport- Shuenk N55+ Turbo/ Intake/ GPlus IC/ CP/ DP/ Valved Mufflers/ Custom MHD/ HelixOD/ Walbro450/ B58 Coils/ Brembo G12 F Brakes/ H&R Sport

    GONE BUT NOT FORGOTTEN- 07 A6 3.2- Morimoto 5500k/ Nokya 2500k/ DeAutoLED Rev, LP, Footwells/ Ziza Interior/ 10" Pioneer/ Audi Aluminum Pedals/ Stoptech X-Drilled & Sport Pads, ST X-C/Os, Hacked Airbox+ aFe, Resonator Delete

  3. #3
    Established Member Two Rings
    Join Date
    Jun 19 2012
    AZ Member #
    95503
    My Garage
    06’ A8L 4.2L, 04' 330CIC, 91’ Corrado 1.8T, 10' Q5 3.2L,
    Location
    Long Island, NY

    Quote Originally Posted by 95blkmax View Post
    In general terms, you got the bulk of it!

    Good luck on the hunt!


    Thank you this is exactly what I was looking for!

  4. #4
    Veteran Member Four Rings JPJ2007's Avatar
    Join Date
    Apr 15 2009
    AZ Member #
    41259
    Location
    Middle TN

    I'm pretty happy with 238,000 miles... Sure some things are starting to need attention but it's expected. Still on the original chain/guides/pretty much everything. (Leaks Coolant and oil, Hoping to fix that next week)

    If you're mechanically inclined you can work on it anywhere... Even my gravel driveway. :/

    https://c1.staticflickr.com/5/4339/2...f0e56e59_c.jpg


    95blkmax: Thanks for that link... Mine are leaking and I'll add that to the "List"
    Last edited by JPJ2007; 12-03-2017 at 08:19 PM.
    2006 A6 3.2L Quattro S-Line (got my baby back)

  5. #5
    Senior Member Three Rings
    Join Date
    May 23 2016
    AZ Member #
    373689
    Location
    Edmond, OK

    Quote Originally Posted by JPJ2007 View Post
    I'm pretty happy with 238,000 miles... Sure some things are starting to need attention but it's expected. Still on the original chain/guides/pretty much everything. (Leaks Coolant and oil, Hoping to fix that next week)

    If you're mechanically inclined you can work on it anywhere... Even my gravel driveway. :/

    https://c1.staticflickr.com/5/4339/2...f0e56e59_c.jpg


    95blkmax: Thanks for that link... Mine are leaking and I'll add that to the "List"
    fo shizzle!

    CURRENT- 11 BMW 535i M-sport- Shuenk N55+ Turbo/ Intake/ GPlus IC/ CP/ DP/ Valved Mufflers/ Custom MHD/ HelixOD/ Walbro450/ B58 Coils/ Brembo G12 F Brakes/ H&R Sport

    GONE BUT NOT FORGOTTEN- 07 A6 3.2- Morimoto 5500k/ Nokya 2500k/ DeAutoLED Rev, LP, Footwells/ Ziza Interior/ 10" Pioneer/ Audi Aluminum Pedals/ Stoptech X-Drilled & Sport Pads, ST X-C/Os, Hacked Airbox+ aFe, Resonator Delete

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