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Thread: Bufkin pipe replacement.

  1. #1
    Registered User Aronis's Avatar
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    Bufkin pipe replacement.

    I am back to the RS6 as my daily drive so I have put this off too long.

    Anyone have any input on the process of replacing this Oil Cooler Pipe. I have 138000 miles on my original.


    Mike
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

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    Registered User Aronis's Avatar
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    Yes I have read several pages like that. Anyone do it on an RS6 without pulling the engine? I'm at a point of preventive maintenance. Due for timing belt so I figured it could be done at that setting. I ordered the metal pipe from Ebay today.

    I had the oil pan seal down when my CV boots were replaced on one side. The transmission seal was replaced about 3 years ago. We checked the level and it was fine in the transmission but the fluid has not been changed? maybe never?

    Mike
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

  4. #4
    Registered User lswing's Avatar
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    Start here, http://www.rs6.com/showthread.php/23...-is-in-the-car

    Use this to search in Google, site:rs6.com bufkin pipe engine in. If you get a spam/porn page on a link then just go back then forward and it should go to rs6.com.

    I dropped by Broadway Auto, they did me right! Fixed up an SAI leaking line in an hour easy. Seem to know their stuff. Thanks!

    I remember a few tutorials on swapping the pipe with engine in...
    Ace/Edge TC - Tozo Trans - MTM TCU - REVO/ME7 tune - Wagner IC's w/ Venair Hoses - Aux Radiator delete - Hotchkis Sways - Hawk HPS Pads - Koni Sport Struts - Scroll KO4 Turbos - Devil's Own WM - 421whp/452wtq on Mustang Dyno - http://www.audirssix.com

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    Registered User Aronis's Avatar
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    Cool, I'll be driving through Albany on Thursday, heading to Boston.
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

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    Registered User Bigglezworth's Avatar
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    It can be done without 'removing' the engine yes. You do need to have the front clip in service position, as that is the only way you can remove the alternator. Once you remove the alternator, you can support the engine and remove the passenger side engine mount to create enough room to remove the bolts. I would suggest you also lower the engine a nominal 2-3" while bolted up to the engine cradle (requires support from above or below after you remove the half frame bolts), in order to get additional access to the bolts.
    '02 S6 Avant Silver - Pokey | Carbon Black/Ebony RS6 w/ stuff - darn quick | '03 Daytona Grey/Ebony RS6 w/ more stuff - quicker yet | '91 NSX CDN issue with 6spd & BBSC - quicker yet and then some | '87 Buick GNX OEM clone w/ lots of stuff - quickest hands down

  7. #7
    Registered User Aronis's Avatar
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    Cool, it will not be a DIY, but I want to get an idea of the time needed so I don't get over charged. Do you think Audi has a standard hour number for this replacement?

    I figure I will have it done with the timing belt. I have to check my records but I think it's getting close to time. Scratch that, the timing belt was changed at 127,000 miles.



    Mike
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

  8. #8
    Registered User Bigglezworth's Avatar
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    I would hesitate to guess that a dealer would add a nominal 2-3 hours min to a standard timing belt service to undertake this work.
    '02 S6 Avant Silver - Pokey | Carbon Black/Ebony RS6 w/ stuff - darn quick | '03 Daytona Grey/Ebony RS6 w/ more stuff - quicker yet | '91 NSX CDN issue with 6spd & BBSC - quicker yet and then some | '87 Buick GNX OEM clone w/ lots of stuff - quickest hands down

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    Registered User hahnmgh63's Avatar
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    I agree with Bigglezworth on this, from the service position and with the engine supported. I did mine a few years ago when I had the engine out but I just so happen to have mine in the service position right now and after looking at it I think it could be done without too much more work like he said, drop the right side mount, remove alternator. After that there should be plenty of room. Hoping to have my engine out tonight, just got off work. 6 speed here I come.
    2003 White RS6 2013 Midnight Blue S5
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  10. #10
    Registered User Aronis's Avatar
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    thank you for the input.

    Mike
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

  11. #11
    Registered User 4.2Crew's Avatar
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    Quote Originally Posted by Bigglezworth View Post
    It can be done without 'removing' the engine yes. You do need to have the front clip in service position, as that is the only way you can remove the alternator. .
    Not to nitpick, but the alternator can be removed without placing the front clip in the service position........ Perhaps having the clip in the service position provides additional access during the Bufkin pipe replacement? ...Just wondering out-loud here.
    2003 RS6 l SE Exhaust l Koni Yellow Sports w/stock springs l Lowered 1"F 1.25"R l EPL Tuned l 19 x 9.5 VMR V713 & 265 PSS's l 50% window tint l Protective film on entire hood, bumper and front quarter panels l

  12. #12
    Registered User Bigglezworth's Avatar
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    Quote Originally Posted by 4.2Crew View Post
    Not to nitpick, but the alternator can be removed without placing the front clip in the service position........ Perhaps having the clip in the service position provides additional access during the Bufkin pipe replacement? ...Just wondering out-loud here.
    Fair comment, but the top bolt can difficult enough to remove so that the additional hour it takes to get the front clip in to service position is highly beneficial as part of the work IMO.
    '02 S6 Avant Silver - Pokey | Carbon Black/Ebony RS6 w/ stuff - darn quick | '03 Daytona Grey/Ebony RS6 w/ more stuff - quicker yet | '91 NSX CDN issue with 6spd & BBSC - quicker yet and then some | '87 Buick GNX OEM clone w/ lots of stuff - quickest hands down

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