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#1
5th May 2009, 08:01 PM
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17125 - Torque Converter Clutch Circuit Performance or Stuck Off
VagCom threw the following fault code after my test run tonight. I've had it before intermittently. Doesn't seem to effect anything......
 17125 - Torque Converter Clutch Circuit Performance or Stuck Off. P0741 - 35-00 - - Anyone any ideas?
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Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light. 
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#2
5th May 2009, 08:08 PM
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#3
5th May 2009, 08:12 PM
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#4
5th May 2009, 08:19 PM
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Oooo errr. Worrying posts especially as I had the TC in my hands a few days ago. The only thing I don't have is any of the symptoms!
The box is as smooth as it's always been. This Thread suggests another reason with a problem on the MAF. Think I'll try this remedy first......... 
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Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light.
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#5
5th May 2009, 08:24 PM
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Hopefully it's the fluid level.
I've just found this http://www.w8forum.dk/forum_posts.asp?TID=813 and there is a RossTech Wiki http://wiki.ross-tech.com/index.php/Main_Page Hope it's not serious
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#6
5th May 2009, 08:25 PM
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Another one..
http://www.myautomotiverepair.com/?p=783 All seem to be pointing to a torque converter on it's way out. Probably more likely if you're caning it too 
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2010 Jag XF 3.0D Portfolio S I know.. I know.. 
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#9
6th October 2013, 05:03 PM
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Hmmm is back again.
Though not sure of MAF is OK and I am getting a fault code from one of the Lambdas also. Now I will look at fixing the MAF/ Lambda but not much really I can do on the box. Change the MAF, clear the codes and just drive the thing? If it goes bang then hey time for a D3?
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#10
7th October 2013, 08:33 PM
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Interesting...
Drove the car for ages tonight to look into the problem a little more. Drive at a constant 45mph, all is smooth no rev jumps. Gear changes up and down all good, quick and smooth Car accelerates as expected, kick down etc all good Goes into Drive and Reverse quickly and no clunks Does not stall or grumble in anyway Looking at the codes again I now have P0155 (O2 Sensor Pre Cat), P0171 (System too Lean Bank 1) and P0174 System too Lean Bank 2). All combined is never good and after cleaning the MAF its not made any change to the car. It could be a hope the 17125 is linked the MAF/ 02 problem but its worth spending the few quid for new parts to check it out.
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Linear Mode
