B6 Audi A4 01V transmission problems

[panddbrn]

I had the Tiptronic transmission go out on the B6 Audi. It is the 01V tip. I bought a replacement that had 98,000 miles on it. I changed all of the seals accessible without pulling the trans apart and installed it. The transmission still had oil in the pan as well as the Torque Convertor. I followed the procedures of filling the transmission until the oil started dripping out. I installed the fill pIug then started the engine. While watching the temperature, I shifted through the gears. The trans shifted hard through the gears. With the engine still running I removed the fill plug so I could continue filling the transmission. I could hear a sucking sound so I knew there was not enough oil. I added the oil as quickly as I could. I filled until the oil started dripping out again. I could not hear the sucking sound after I started filling the transmission. I took the car off the jack stands, started it and shifted into drive. The transmission would not shift. I used VAGCOM to check for error messages and there were none. I thought that the transmission pump may have lost it's prime. I disconnected the hardlines that go to the transmission oil cooler one at a time and filled them with oil. I started then engine and shifted the transmission into gear and it would not engage. I am at a lost and am trying to figure out the issue I'm having. I don't know if the pump is defective due to the initial lack of oil or some other problem. If anyone has any ideas of what may causing the transmission not to shift and can answer that in my thread, it would be greatly appreciated.*

[Cybersombosis]

When you said “ I took the car off the jack stands, started it and shifted into drive. The transmission would not shift.” this statement contradicts itself. Does the shifter move? Are you saying it shifts into a gear but the car won’t move? When you say you changed seals, which seals? Did you open up the trans or valve body at all or did you just drop the pan and change the filter?

[TobiqueSlang]

Just for my own curiosity, because I don't think I've ever done transmission work on an automatic. This couldn't be a TCM or IMMO issue could it?

[Cybersombosis]

Just for my own curiosity, because I don't think I've ever done transmission work on an automatic. This couldn't be a TCM or IMMO issue could it?

If it was the TCM that was pooched, then you wouldn’t be able to log into the module with VCDS. Since he can log into the TCU and check codes, which it didn’t have any, then the TCM is fine. Immo only stops the car from starting and staying running and has nothing to do with the trans.

There is most likely a linkage issue depending of how deep he went in to changing seals. If he took the valve body off, there is a little slider inside the body that moves a piston. If he didn’t line that up properly, he would shift the shifter and not be selecting any gears. If he didn’t open up the trans, then it’s most likely he didn’t pop the selector cable back on properly and it popped off while shifting through the gears. But he did get sound and a change in rhythm when he shifted the first time with low fluid so it’s a big question mark to me why the car won’t move when he puts it in gear.

[walky_talky20]

I don't like your fill method. You should have done the following:
- fill the pan until it drips
- start the engine
- fill again until it drips
- run through each gear lever position (2-3 seconds in each position) with foot on the brake pedal and back to park.
- fill again until it drips
- throw the plug in, you're done.
- finally, shut off engine
- If the pan is warm, but you can still hold your bare hand on it, you're good.
- If you do as above, you should be on the cold side of the spec temp and thus be very slightly overfilled (we're talking an ounce or 2), which is perfect.

Based on your description, I can almost guarantee you didn't fill it enough. You waited until the spec fill temperature, and then added a bunch of missing fluid. So now (with the time delay of adding that fluid) you're likely well past the spec temp and it will be underfilled by some amount. Also, you asked it to select a bunch of gears and such while it was nearly out of fluid, so that's not great and those valve body circuits will be empty. I didn't see that you went back and fixed that (ie: you didn't run through the gear positions with enough actual fluid in the sump).

I think you need to fill it again (cold) and see what happens. To top off in this case (without draining any of your new fluid), I would do the following:
- Cold Start the engine
- Remove the fill plug
- Fill till it drips
- Run through each gear position and back to park
- Fill till it drips
- Install fill plug
- Shut off engine
- See if you car works now.

[panddbrn]

I changed the torque converter seals, output shaft seal etc… I did not open the transmission up. The shifter moves in all gear ranges but the transmission itself will not engage into gear after selection whether it be reverse, drive, tip. It wont engage on any gear selected.

[Cybersombosis]

When you installed your trans, did you put the converter on the engine and bolt it down to the flex plate then install the trans or did you install the torque converter on the trans before install? It is highly important to install the torque converter properly with the notches in the correct orientation. The converter will engage on the shaft like you are hitting a wall then clunk down again when you wiggle it into the notches. Do you recall how you installed it?