Possible Tiptronic TCU malfunction

**ind_dsnr** · 04-22-2008 09:29 AM

I have a 2003 A4 Avant with Tiptronic and a 3.0 motor. Ever since I got the car it dogs the engine when in drive. It runs right through the gears as fast as it can and tries to keep the engine reving around 1250 RPM most of the time. It drives fine in Sport mode although it won't shift into 5th gear in "S". I recently had my entire trans, torque converter and valve body rebuilt at Level10. The trans is much more positive but still drives like s#!t in "D". I am not getting any trans codes though. I've even tinkered with the trans parameters using VAG-COM with some improvement in down shifting, but that's about the extent of it. Has anyone had a similar situation? I'd like to try a new TCU but that's big bucks. Unfortunately there is no Tip Chip for the B6's.

**Maverick** · 04-22-2008 09:54 AM

how much was the work at Level10?

I never heard anything like this

**scorneil** · 04-22-2008 10:14 AM

that's weird. can't help you with your D issues, but my tip doesn't shift into 5th in S either. i'm guessing that's the way they're programmed.

**dpatel** · 04-22-2008 10:27 AM

I heard the 3.0's TIP have an adaptive feature on the trans. I forgot the fancy name for it. The shift timing adapts to the user. If you drive "lazily", then it will shift early to conserve fuel. There is away to reset it but not sure how. Maybe by throttle valve adjustment or disconnect the battery. Or you can use your other spare set key as this feature is linked to the key you use.

**eddier** · 04-22-2008 11:05 AM

i think you're talking about doing a throttle body adjustment, go into the easter egg thread and read about it. key in, turn to just before start, gas down 5 sec, key back to initial position, etc

something like that. I dont think that will fix your problem though. Is everything fine in tip mode?

**ind_dsnr** · 04-22-2008 11:25 AM

Everything is fine in Tip mode. I'll try the TB reset.

**Colt556** · 04-22-2008 11:55 AM

I have the same problem with my 03 1.8T. It also doesn't want to shift when I am driving in TIP mode sometimes. I'll just keep slapping the shifter and nothing happens, sorta has a mind of it's own at times. It drives me nutz!!! I wish I'd kept looking until I found an Avant with a 6MT.