Check Engine Light Due to Faulty Torque Converter on Audi A6 Quattro

A problem with the torque converter can cause the Check Engine Light to illuminate.

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Average mileage: 101,890 (20,000–200,000)
Drive Train affected: Automatic Transmission
16 model years affected: 1995, 1996, 1997, 1998, more1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
75 people reported this problem
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problem details
Check engine light comes on, goes off, no pattern. Dealer and independent shop both state faulty converter, yet symptoms dealer said I would experience are non-existent. No slippage, no change in gas mileage or performance, nothing. I do not believe this is anything more then a sensor or computer problem.
2003 Audi A6 Quattro 80,000 mi,
My torque converter started going around 80k, but around 100k it began to really act up and had to be replaced. Complete garbage service from Audi and this is by far not a rare problem, LOTS of user's have this problem and a class-action suit should be filed. The failure rate is ridiculous and there are many mechanics reporting faulty designs in the torque converter itself. The "joke" at an Audi dealership here in NJ that is owned by my friend's father and a partner, (Mr. Reynolds); Every Tiptronic Audi from 2000-2005 will need a torque converter and every car with the 2.7t (twin-turbo motor) will need turbos because of faulty designs. What a sick joke especially when his son said that to me after the fact I bought the car and had the work done, if I knew that then I would of never bought one. Like I said, I talk to the owner's son and other mechanics at Bernardsville Audi in New Jersey this is a serious problem. Mr. Reynolds is in partnership with another person and they also own and operate the Mendham Audi dealership.
2003 Audi A6 Quattro 80,000 mi,
2003 A6 2.7T Check Engine Light on for 4 years. Codes point to faulty torque converter - No impact on performance and I have not repaired. Pain to get past Maryland emissions test.
2001 Audi A6 Quattro - Automatic Transmission
Po741 code came on took it to mechanic could not find anything wrong car drives and shifts great cleared code, came back on after about 200 miles. Not repaired yet.
2006 Audi A6 Quattro 80,000 mi,
Check engine would come on and off for about an hour or so. Replaced the torque converter
You all know the story. Check engine light came on...went to have the code scanned, yep...Error Code PO741 Torque Converter Clutch Circuit Performance … but it could also be a clog, a torque coverter clutch solenoid, etc. etc. bottom line is Audi refuses to help becase the transmission is sealed....about as sealed as our fates. I've heard others talk of a class action movement. I, for one, would do it. Where/how do we proceed?
2002 Audi A6 Quattro 129,000 mi,
My check engine light came on & brought to Audi Dealer & they just told me I need to replace torque converter....I am in the market to buy a new car within the month & do not want to invest $2500+ dollars....the car has been running fine, no symptoms & after reading all the comments on this site I will NOT be replacing it!!!
2008 Audi A6 Quattro 20,000 mi,
Haven't had it fixed yet so don't know cause of issue but the check engine light has come on and off since about 20,000 miles. Dealer just tells me to ignore it. Haven't experienced any engine problems as of yet.
2002 Audi A6 Quattro 94,357 mi,
CEL after driving in snow - code states TCC most sites point to faulty converter... cleared code and it is back on within 20 miles. Just bought it and it's a fortune to maintain so far.... but that's the price for a good German engineered car, right?
2001 Audi A6 Quattro 70,000 mi,
check engine light was on when i bought the car at around 70k and still has not been fixed.
2003 Audi A6 Quattro 100,000 mi,
Check engine light came on after passing 100,000 miles. Dealer checked it and said it was toque converter. After much researchand talking to mechanics I trust, determined that tranny and wheels don't lock up 1 for 1 at highway speeds. Affects performance, gas mileage and maybe emmissions. The tranny will not fail. I drove from California to Colorado last week and had no problems. I felt no slipping ever. My tack was near 4000 rpm at 80 mph. I don't know what it was prior to check engine light. My only concern now is Colorado emmissions test this summer.
Bad tourque converter! Weak from 1st, 2 gear took it to Jim Ellis Audi of Atlanta Ga. Said I will need a new transmission.
2004 Audi A6 Quattro 72,300 mi,
MIL indicates torque converter
1998 Audi A6 Quattro 130,000 mi,
My 98A6 has had the same problems how can I get Audi Co in Asheville to fix it the car has multiple problems I think its crazy that there is so many problems with these cars all of the problems should be fixed for free!!!! Hello Audi my names David Bradshaw I am from Johnson city TN,37601 my email is davidbradshaw484@gmail.com
Code p0741 came on. Not fixed yet. I was told I need a new torque converter.
2003 Audi A6 Quattro 65,000 mi,
MIL indicates faulty torque converter...not fixed yet
2004 Audi A6 Quattro - Automatic Transmission 94,300 mi,
CEL...dealer ssying torque converter needs replacing...$3K to solve issue due to Audi bad design...2004 A6 2.7T
2002 Audi A6 Quattro - Automatic Transmission 120,000 mi,
Several years ago noticed while driving in the hills of Pennsylvania my rpm would bounce up 200 On the climbs. Would stabilize at that point. Check engine light came on and stayed on soon after that.It has been several years as a drive around town car. Debating taking it back out on the road again But keeping it out of the mountains
2002 Audi A6 Quattro - Automatic Transmission 130,000 mi,
Had a code for Torque converter stuck off about three years ago.... No performance issues that I can tell. Check engine light on and off. At one point I thought driving it easy in manual turned it off. Not sure anymore. Maybe it's random. There's 158000 on the beauty now. And there's some coming from under the hood on the passenger side, smells like burning of some sort. Still running strong though. With all the mechanical malfunctions, it's pretty durable.
2006 Audi A6 Quattro 69,150 mi,
I purchased the vehicle and didn't even make it to my insurance company before 4,500$ in transmission damage happened