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    Thread: TTRS - Strange sound when cold over 2k RPM?

    1. Member Black BeauTTy's Avatar
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      03-20-2012 07:21 PM #101
      Wow, mine doesn't make that noise at all. I'm glad you guys recorded it for all of us. I hope the ECU update solves it.
      2012 TTRS: Daytona Gray, CF Mirrors, Nexon CF Steering Wheel, OSIR Coolant Tank CF Shield, Tinted Tails
      GIAC Stage 2, AWE SwitchPath + cat-deletes, AWE FMIC, H&R RSB, MSS Adjustable Sport Springs, AWE Boost Gauge, BFI shift knob, 42DD shift bushings, Wheels: HRE P40 19x9 et50; Borbet LV5 18x8 et35; TSW Interlagos 18x9.5 et53 w/Mich PSS 275/35

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      03-20-2012 07:38 PM #102
      Quote Originally Posted by Black BeauTTy View Post
      Wow, mine doesn't make that noise at all. I'm glad you guys recorded it for all of us. I hope the ECU update solves it.
      Keep trying every morning! Mine sounds buttery smooth most of the time.

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      03-20-2012 07:42 PM #103
      Quote Originally Posted by fourtunes View Post
      I'll double-check tonight, but I don't believe a specific version was mentioned. My service adviser always referred to it as the 2013 model year ECU update. I guess I ought to be able to tell with VCDS?
      It's apparently very easy! Thanks to Arin@APR for providing the link on how to check the ECU software revision here: http://www.goapr.com/support/boxcode.php



      I'm curious what your version # is now, fourtunes. APR mentioned that they've seen TT-RS software revisions of both S0010 and S0020 already. Maybe some folks' cars are already shipping with revised S0020 software.

    4. 03-20-2012 11:42 PM #104
      Quote Originally Posted by Marty View Post
      It's apparently very easy! Thanks to Arin@APR for providing the link on how to check the ECU software revision here: http://www.goapr.com/support/boxcode.php



      I'm curious what your version # is now, fourtunes. APR mentioned that they've seen TT-RS software revisions of both S0010 and S0020 already. Maybe some folks' cars are already shipping with revised S0020 software.
      That's easy enough. I'll check tomorrow morning - there's no mention of the version on the service record. I head meant to check VCDS (look for fault codes, etc.) after work, but after more than a month with a 2 liter engine, I had to spend some quality time with the RS, first.

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      03-21-2012 03:17 AM #105
      Quote Originally Posted by fourtunes View Post
      That's easy enough. I'll check tomorrow morning - there's no mention of the version on the service record. I head meant to check VCDS (look for fault codes, etc.) after work, but after more than a month with a 2 liter engine, I had to spend some quality time with the RS, first.
      Just checked with VCDS: my car is running rev 0020. I hope your rev is higher.

    6. 03-21-2012 11:54 AM #106
      Quote Originally Posted by Marty View Post
      Just checked with VCDS: my car is running rev 0020. I hope your rev is higher.
      Interestingly, it isn't. It's 0010. It didn't occur to me to check yesterday, but I'm in a position to compare the versions before/after: the information is captured in the log file as part of VCDS's full fault-code scan, and I have one or two of those log files from before the ECU update. I'll take a look at that tonight.

      For what it's worth: I haven't heard the rattle since I got the car back. It has only seen two cold starts in that time, but two clean starts is good mileage already.

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      03-21-2012 11:59 AM #107
      Quote Originally Posted by fourtunes View Post
      Interestingly, it isn't. It's 0010.
      The plot thickens...

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      03-21-2012 12:56 PM #108
      Quote Originally Posted by fourtunes View Post
      Interestingly, it isn't. It's 0010. It didn't occur to me to check yesterday, but I'm in a position to compare the versions before/after: the information is captured in the log file as part of VCDS's full fault-code scan, and I have one or two of those log files from before the ECU update. I'll take a look at that tonight.

      For what it's worth: I haven't heard the rattle since I got the car back. It has only seen two cold starts in that time, but two clean starts is good mileage already.
      I spoke to my advisor at your dealer, and they suggested that it was actually more of a custom one-off program for your car (not a general update available to anyone that comes in).

      They said I'd have to bring my car in, they'd have to reproduce the issue, initiate interaction with Audi in Germany, and only then get instruction to put this custom program on the car.

      So maybe this is a "beta" of some sort that is built on the older 0010 program, but modified to try and tweak the oil pressure settings?

    9. 03-21-2012 01:58 PM #109
      Quote Originally Posted by Marty View Post
      So maybe this is a "beta" of some sort that is built on the older 0010 program, but modified to try and tweak the oil pressure settings?
      I still don't follow how the ECU can control oil pressure. I thought it was a completely mechanical system driven off of the crankshaft.

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      03-21-2012 02:18 PM #110
      Quote Originally Posted by JohnLZ7W View Post
      I still don't follow how the ECU can control oil pressure. I thought it was a completely mechanical system driven off of the crankshaft.
      I was assuming that there was a relief valve or other electromechanical control that could indirectly impact the pressure. But that is just an assumption on my part.

    11. 03-21-2012 03:10 PM #111
      Quote Originally Posted by Marty View Post
      I spoke to my advisor at your dealer, and they suggested that it was actually more of a custom one-off program for your car (not a general update available to anyone that comes in).

      They said I'd have to bring my car in, they'd have to reproduce the issue, initiate interaction with Audi in Germany, and only then get instruction to put this custom program on the car.
      Interesting. Well, at least they'd probably start with the ECU change.

      Quote Originally Posted by Marty View Post
      So maybe this is a "beta" of some sort that is built on the older 0010 program, but modified to try and tweak the oil pressure settings?
      /me shrugs.

      I'm sure they're not telling us the whole story, and there's no telling how accurate the pieces that are being shared really are.

    12. 03-21-2012 03:18 PM #112
      Quote Originally Posted by Marty View Post
      I was assuming that there was a relief valve or other electromechanical control that could indirectly impact the pressure. But that is just an assumption on my part.
      The description in the Self-Study Program 990713 document is somewhat unclear on this. It does show that the oil pump is driven mechanically, but it also states that the pump is self-regulating. The document mentions a variety of valves, so it doesn't seem hard to believe that there's relief valves or some other means to affect pressure.

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      03-21-2012 03:24 PM #113
      I'm due for 1st service soon. I'll have to mention this...afterall, I was the first person to notice this, but just got ignored.

      From 10/21/11...http://forums.fourtitude.com/showthr...-have-noticed)

      Quote Originally Posted by DrDomm View Post
      Anyone hear a weird fan noise when applying throttle, shortly after a cold start? I get this all the time.
      Now, I'm even more hesitant to flash my ECU...
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    14. 03-21-2012 03:38 PM #114
      Quote Originally Posted by DrDomm View Post
      I'm due for 1st service soon. I'll have to mention this...afterall, I was the first person to notice this, but just got ignored.

      From 10/21/11...http://forums.fourtitude.com/showthr...-have-noticed)

      Now, I'm even more hesitant to flash my ECU...
      No kidding. If I had had to pay for the rattle debug effort, it would've proven a very costly experience. I'm not going to mess with the ECU.

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      03-21-2012 03:43 PM #115
      Quote Originally Posted by DrDomm View Post
      Now, I'm even more hesitant to flash my ECU...
      Same here...

    16. Member Black BeauTTy's Avatar
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      03-21-2012 07:26 PM #116
      Quote Originally Posted by DrDomm View Post
      I'm due for 1st service soon. I'll have to mention this...afterall, I was the first person to notice this, but just got ignored.

      From 10/21/11...http://forums.fourtitude.com/showthr...-have-noticed)



      Now, I'm even more hesitant to flash my ECU...
      I'm sorry, did you say something?
      2012 TTRS: Daytona Gray, CF Mirrors, Nexon CF Steering Wheel, OSIR Coolant Tank CF Shield, Tinted Tails
      GIAC Stage 2, AWE SwitchPath + cat-deletes, AWE FMIC, H&R RSB, MSS Adjustable Sport Springs, AWE Boost Gauge, BFI shift knob, 42DD shift bushings, Wheels: HRE P40 19x9 et50; Borbet LV5 18x8 et35; TSW Interlagos 18x9.5 et53 w/Mich PSS 275/35

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      03-21-2012 08:47 PM #117
      i dont think this problem is isolated to the tt-rs, my 3.2 vr6 MK2 TT makes the exact same noise. when the exhaust system is cold it emits a crazy raspy/rattling metal sound. it seems to disappear after the exhaust system really warms up. i have also found youtube videos of people with stock and aftermarket exhausts that still make this noise.

      here is a video with a 3.2 with an exhaust system. clearly looks like a cold start as he rolls out of the garage. thats the same noise my car makes and it sounds like its what the OP's car is doing too?

      http://www.youtube.com/watch?v=lOykjzP9JzM

      sorry i only skimmed through the 4 pages, so i apologize if i missed something or am late to the party
      Last edited by audi_rs; 03-21-2012 at 08:50 PM.

    18. 03-21-2012 09:57 PM #118
      Quote Originally Posted by Marty View Post
      I spoke to my advisor at your dealer, and they suggested that it was actually more of a custom one-off program for your car (not a general update available to anyone that comes in).

      They said I'd have to bring my car in, they'd have to reproduce the issue, initiate interaction with Audi in Germany, and only then get instruction to put this custom program on the car.

      So maybe this is a "beta" of some sort that is built on the older 0010 program, but modified to try and tweak the oil pressure settings?
      I took a look at the log file, and as I suspected, the ECU version doesn't appear to be limited to just the 4 digit code referenced above.

      Before (captured @ 832 miles):

      Address 01: Engine (CEP) Labels: 07K-907-404-CEP.clb


      Part No SW: 8J0 907 404 Q HW: 8J0 907 404 M


      Component: 2.5l R5/4V TFSI 0020


      ...

      After (captured @ 1416 miles):

      Address 01: Engine (CEP) Labels: None


      Part No SW: 8J0 907 404 R HW: 8J0 907 404 M


      Component: 2.5l R5/4V TFSI 0010


      ...

      As to status: 0/3 on the rattle front so far.

    19. 03-21-2012 10:03 PM #119
      Quote Originally Posted by audi_rs View Post
      i dont think this problem is isolated to the tt-rs, my 3.2 vr6 MK2 TT makes the exact same noise. when the exhaust system is cold it emits a crazy raspy/rattling metal sound. it seems to disappear after the exhaust system really warms up. i have also found youtube videos of people with stock and aftermarket exhausts that still make this noise.

      here is a video with a 3.2 with an exhaust system. clearly looks like a cold start as he rolls out of the garage. thats the same noise my car makes and it sounds like its what the OP's car is doing too?

      http://www.youtube.com/watch?v=lOykjzP9JzM

      sorry i only skimmed through the 4 pages, so i apologize if i missed something or am late to the party
      That doesn't sound like the rattle we're talking about. In our case, the noise comes from the engine itself (from the transmission side).

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      03-22-2012 01:44 AM #120
      Quote Originally Posted by fourtunes View Post
      I took a look at the log file, and as I suspected, the ECU version doesn't appear to be limited to just the 4 digit code referenced above.

      Before (captured @ 832 miles):

      Address 01: Engine (CEP) Labels: 07K-907-404-CEP.clb


      Part No SW: 8J0 907 404 Q HW: 8J0 907 404 M


      Component: 2.5l R5/4V TFSI 0020


      ...

      After (captured @ 1416 miles):

      Address 01: Engine (CEP) Labels: None


      Part No SW: 8J0 907 404 R HW: 8J0 907 404 M


      Component: 2.5l R5/4V TFSI 0010


      ...

      As to status: 0/3 on the rattle front so far.
      It looks like you used to have rev 0020, and now you have rev 0010. According to APR, these are the software rev's (while the other numbers are ECU box codes).

      APR also said that they've seen US TT-RS' with both rev 0020 and 0010.

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      03-22-2012 09:22 AM #121
      Quote Originally Posted by fourtunes View Post
      That doesn't sound like the rattle we're talking about. In our case, the noise comes from the engine itself (from the transmission side).
      thank you for clarifying that. i feel my problem is related to exhaust so i will start to replace exhaust components.

      Good luck to the op, hope he gets sorted

      cheers

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      03-22-2012 10:05 AM #122
      Quote Originally Posted by Black BeauTTy View Post
      I'm sorry, did you say something?
      LOL.

      I'm so bummed not to come to the GTG...
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    23. 03-22-2012 12:25 PM #123
      Quote Originally Posted by Marty View Post
      It looks like you used to have rev 0020, and now you have rev 0010. According to APR, these are the software rev's (while the other numbers are ECU box codes).

      APR also said that they've seen US TT-RS' with both rev 0020 and 0010.
      Take a look at the Part No SW field. The last digit changed from Q to R.

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      03-22-2012 02:33 PM #124
      Quote Originally Posted by fourtunes View Post
      Take a look at the Part No SW field. The last digit changed from Q to R.
      Good catch... I wonder what that means.

    25. Member Black BeauTTy's Avatar
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      03-22-2012 06:26 PM #125
      Just ran mine...0020 for me and I was a very early delivery.
      2012 TTRS: Daytona Gray, CF Mirrors, Nexon CF Steering Wheel, OSIR Coolant Tank CF Shield, Tinted Tails
      GIAC Stage 2, AWE SwitchPath + cat-deletes, AWE FMIC, H&R RSB, MSS Adjustable Sport Springs, AWE Boost Gauge, BFI shift knob, 42DD shift bushings, Wheels: HRE P40 19x9 et50; Borbet LV5 18x8 et35; TSW Interlagos 18x9.5 et53 w/Mich PSS 275/35

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