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  1. #1
    Established Member Two Rings
    Join Date
    Mar 19 2014
    AZ Member #
    159828
    Location
    Fort Wayne, IN

    2004 Audi S4 B6 - has overheated (blown) engine - asking $4,200 obo

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    I've got a 2004 Audi S4 black in color that I bought either to fix or to use as a parts car for my other S4, that I am now considering selling whole instead to free up room in the garage. The car is essentially 100% complete, I believe the only thing missing is there are no center caps for the wheels. The problem with the car is with the engine. The prior owner overheated the engine due to a leak in the coolant line and he ran it without coolant. He said he overheated it, it shut itself down as a result, and he let it cool and he restarted it and drove it again and it overheated again. But then when he tried to start it the next day it was smoking real bad and burning coolant, and making a noise in the engine. When I bought it I drove it up onto the trailer, smoking like hell.

    It has 272K miles on the chassis (yes, believe it!) mostly hwy per the prior owner. I've never heard of a B6 S4 having anywhere near that many miles before, so maybe it is the most in existence? He said the original owner drove it from Indiana to Florida all the time for work. It was dealer-maintained, I have a 57 page PDF of dealer records on it.

    The engine was replaced brand new by the dealership for over $13K in June, 2010. There are only 73K miles on the engine therefore. But of course it was since overheated repeatedly by the prior owner and thus the engine has (at least) blown head gaskets and is making a metallic slapping noise on the pass side (which goes away after it builds oil pressure). I took the pass valve cover off to see if I could see any immediate damage and did not see anything. Compression was low on two cylinders but the guy who tested it for me said this is likely due to either blown head gaskets or cracked heads. He believes the bottom end is in good shape, but he said you'd really need to tear it apart to know for sure. He thinks the noise may be due to bad mechanical cam adjusters since the noise virtually goes away after maybe 10 seconds of running. But it of course is smoking really bad and running rough and burning lots of coolant. And you can see air bubbles/pressure feeding back into the coolant reservoir while it runs. The valve cover is off right now so I can't start it but you can even hear the slapping noise while turning it over (all coil packs are taken out right now too).

    I had bought it possibly to fix and resell, or for parts for myself, (in which case I'd sell a few parts and keep many for myself). But I haven't begun parting it at all -- I don't have the heart to. It would be nice to see it go back on the road and start racking up more miles. I think it would be a nice candidate for motor rebuild or for a motor swap.

    Cosmetically there is a crack in the rear bumper on the pass side a few inches wide. There's a small ding on the driver's door. And the Recaro seats (two-tone black & white) -- the front ones are rather worn out. Other than that the car looks very nice.

    Here's the goodies the car has. All installed by Audi dealership:

    It has a performance chip--not sure what kind.
    It has a full 2.5" Milltek stainless steel exhaust, with downpipes. The prior owner also told me it also has aftermarket headers but I cannot confirm that. (he may have meant downpipes in truth). So let's assume it has the stock headers.
    It has adjustable coilovers--not sure what kind. They are adjustable and the car sits very low at the moment but it could be raised--comes with tool to do so.
    The stock wheels were all powdercoated gunmetal finish - however they've been curbed somewhat so not perfect.

    The car is located in Fort Wayne, Indiana inside my garage. I am asking $4,200 obo for it. I know I probably won't get the full $4,200 especially with the miles on the chassis, but the low-mile engine (which was a $12K part when installed brand new) plus the $3K+ retail full stainless exhaust, plus the coilovers, should help with value. Shoot me reasonable offers, worst I can say is no. But please don't lowball with half what I'm asking, I simply won't sell it if I would lose money on it--I would just keep for parts for myself then or part it out. Thanks for your interest.

  2. #2
    Established Member Two Rings
    Join Date
    Mar 19 2014
    AZ Member #
    159828
    Location
    Fort Wayne, IN


  3. #3
    Established Member Two Rings
    Join Date
    Mar 19 2014
    AZ Member #
    159828
    Location
    Fort Wayne, IN


  4. #4
    Established Member Two Rings
    Join Date
    May 22 2014
    AZ Member #
    235209
    My Garage
    2004 S4 Avant
    Location
    CT

    Stick to your original plan. Part it out.

  5. #5
    Veteran Member Four Rings Blackstallion's Avatar
    Join Date
    Sep 22 2009
    AZ Member #
    48115
    Location
    Toronto

    Love the site of 2 b6 s4's tucked away in the garage. I once had that problem fortunately both mine worked at the time...

    Also Milltek catback is 2.25 DP are 2.5. I would double check the brand on the exhaust tips for some reason they don't look like Milltek.

    Goodluck! Your price isn't too far off from finding a buyer relatively quick IMO...270k miles though woo wee!

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