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  1. 03-20-2015 05:29 PM #1
    AKB6A418TQUSP
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    Welding subframe

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    Does anyone have any annotated pictures of where to weld the subframe? Or is it obvious based on where it seperates? All my front suspension is recent, but know the car is clunking and popping when the front of the car undergoes any torsion or braking stress.
    2011 A6 3.0t S-Line
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  2. 03-20-2015 05:46 PM #2
    old guy
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    I searched and couldn't find any pics but if you have a spot welder you need to reinforce the crimps along the inside edge of the subframe. That is the area that causes the creaking and popping.
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  3. 03-20-2015 06:53 PM #3
    AKB6A418TQUSP
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    Awesome, thanks for the reply. Do you mean here? I haven't gotten completely under the car to take a look yet.

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  4. 03-21-2015 01:45 AM #4
    old guy
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    That is correct.
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  5. 03-21-2015 08:20 AM #5
    AKB6A418TQUSP
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    Thanks again!
    2011 A6 3.0t S-Line
    2010 S4 6-Speed
    2009 LMM dually
    1988 Starion SHP (times 3)
    1986 AW11 MR2 N/A
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  6. 04-06-2015 10:03 AM #6
    DPDISXR4Ti
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    I have this issue on my car and was planning to take a closer look at the next oil change (due now). I have a spot welder - just wondering how restricted I'm going to be from an access standpoint. Has anyone actually done this job with a conventional spot-welder with the engine in place?
    Brad 2002 Quattro 1.8T w/ 2.8 B5 5-speed
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  7. 04-06-2015 01:35 PM #7
    maurizio
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    i had a muffler shop weld all the spots shown in that pic and it didnt help with random pops/clunks and other noises. Guess im off to inspect suspension/steering components again.
    "Are you actually asking that question.. Just don't even post on my thread. why do I need to lie on an Audi forum about me fucking two bitches at once. (not literally) yes i did, you are late to the party.
    and this thread has ran out of gas. I just wanted to tell people about my experience I had 2 nights ago and felt like sharing it with my fellow B6'ers. And I thank the people who didn't hate."
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  8. 07-24-2015 06:42 AM #8
    Grenalis
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    Have you figured out your issue yet I still have not. It is really annoying to hear what sounds like the front end falling apart, yet everything is tight.
    2004 Audi A4Q B6 1.8T
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  9. 07-24-2015 10:30 AM #9
    maurizio
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    i heard of a special bolt under the battery that causes loud popping and clunks, might give it a try someday...
    "Are you actually asking that question.. Just don't even post on my thread. why do I need to lie on an Audi forum about me fucking two bitches at once. (not literally) yes i did, you are late to the party.
    and this thread has ran out of gas. I just wanted to tell people about my experience I had 2 nights ago and felt like sharing it with my fellow B6'ers. And I thank the people who didn't hate."
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  10. 07-24-2015 10:32 AM #10
    customa4
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    Quote Originally Posted by maurizio View Post
    i heard of a special bolt under the battery that causes loud popping and clunks, might give it a try someday...
    I'm guessing one of the bolt the holds the power steering rack in place.
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  12. 07-24-2015 10:32 AM #11
    blitz2190
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    Quote Originally Posted by Grenalis View Post
    Have you figured out your issue yet I still have not. It is really annoying to hear what sounds like the front end falling apart, yet everything is tight.
    have you checked you subframe bolts, found one of mine was loose and caused said clunking, drove me nuts trying to find it.
    Never argue with an idiot, they'll bring you down to their level and beat you with experience.
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  13. 07-26-2015 11:24 AM #12
    VAGlover
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    Quote Originally Posted by blitz2190 View Post
    have you checked you subframe bolts, found one of mine was loose and caused said clunking, drove me nuts trying to find it.
    Steering rack bushings may be worn.
    I know mine have quite a bit of play and are noisy/clunky.

    Will be replacing soon,

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  14. 09-13-2015 05:31 PM #13
    AKB6A418TQUSP
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    Quote Originally Posted by maurizio View Post
    i had a muffler shop weld all the spots shown in that pic and it didnt help with random pops/clunks and other noises. Guess im off to inspect suspension/steering components again.
    I'm getting ready to get my subframe welded up soon.

    Does anything electrical need to be disconnected before welding for risk of over juicing components?
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  15. 09-13-2015 07:27 PM #14
    DPDISXR4Ti
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    Quote Originally Posted by AKB6A418TQUSP View Post
    Does anything electrical need to be disconnected before welding for risk of over juicing components?
    I always disconnect the battery ground before doing any sort of welding on a vehicle.
    Brad 2002 Quattro 1.8T w/ 2.8 B5 5-speed
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  16. 09-14-2015 07:03 AM #15
    fyremanpat
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    I just did mine a few months ago. I didnt disconnect anything and Ive had no problems....but its a good idea to disconnect the battery
    04 A4 B6, VMR 710s, SB stage 2 daily, GTRS, 550cc inj, Motoza, Billy Boat stealth exhaust, test pipe, Carbonio intake, R1 Diverter, Black FMIC, B5 S4 front brakes, Meyle HD front end, Solo Werks coilovers, Ecodes
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  17. 09-14-2015 03:24 PM #16
    AKB6A418TQUSP
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    Alright, good to know, thanks guys.
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