Yes it's Tiptronic, and it's automatic.
I thought it uses FULL SYNTHETIC fluid. and it must be at a SPECIFIC temperature.
using the vag-com ...

I am lost... I am going to change the fluid tonite. can someone shine some light on this . thanks alot!
Gil

 

the only fluid I was able to verify that could be used, Audi fluid from dealer(esso)
or Redline D4.

this is were I got the info to change mine






Links for Audi A6 Owners, C5 Platform, 1998-2004 (Frequently Asked Questions)

 

Here are some excerpts from the Haynes Manual for Automatic transaxles. Good luck.

Note 1: When the work is done at a dealership, the factory scan tool is used to read the transmission fluid temperature. To perform the job at home, you may need a cooking or darkroom thermometer that has a long probe, which you can insert in the level check hole to read the fluid temperature.

Note 2: The engine must be running when checking the fluid level and when adding fluid.

Note: Checking the fluid on these vehicles isn't easy. The transaxle is considered by the manufacturer to be a "sealed" unit, to which fluid doesn't need to be added unless a leak is evident. There is no conventional dipstick in the engine compartment, but rather a level inspection plug accessible only from below the transaxle. Make sure you have a new seal for the plug before you begin. If fluid does have to be added to an 01N transaxle, a new filler cap seal will be required too.

Transaxle fluid expands as it warms up, and the fluid check shoould only be performed at the specified temperature range of 95 to 113-degreees F. NOTE: The manufacturer states that a scan tool must be used to monitor the temperature range of the fluid. While this is certainly the best way, you can get a fairly accurate reading after driving the vehicle a shoret distance (starting with the drivetrain cold) - approximately one trip around the block or so. The transaxle pan shouold feel war to the touch, but not hot enough to cause pain.

 

I guess I question why you think a fluid change is necessary and why you think it will fix the issue. Unless the fluid level is incorrect, I can't see how changing the fluid will fix the shifting issue you have described.

I think you need to be looking for some sensor issue.

 

Do you know what kinda sensor I should be looking for?
the 5 or 6 sensors inside the Transmission Oil Pan?
Gil

 

Honestly, no idea which one it could be, or if its a sensor. How does the car perform when you shift the tiptronic? Is there still a lag?

 

Yes, even in Tiptronic, there is still Lag.
??

 

First I should tell you I'm pretty new to the world of automechanics so take my advice with that in mind.

Foot is right in that flushing/replacing/topping-off fluid isn't necessary unless it's low. That said, your car is a '98; I'm sure new fluid wouldn't hurt and would be relatively cheap way to completely eliminate that as a possible cause of your problems. Then again, it kind of looks like a pain-in-the-*** to change.

Did some quick searches in my Bentley manual for sensors and found the following information. You definitely require a VAG tool to test this stuff. I didn't post the procedures for testing, but if you get hold of a vag tool and need the procedures, let me know. I don't know exactly how these things work in relation to the transmission, but they came up when I did the search "transmission and sensor".

The first two pictures are related to the location of the Tranmission Control Module. The third picture is related to the valve body.

Location of automatic Transmission Control Module (TCM) -J217-
The control module is located in front of the right front seat under the carpet in the foot well.

Location: valve body

The valve body is bolted to the underside of the transmission housing inside the oil pan.
The Solenoid Valves -N88-, -N89-, -N90-, -N91-, -N92-, -N93- and -N94- are attached to the valve body. The solenoid valves -N91-, -N92-, -N93- and -N94- are also referred to as pressure control valves 1 (-N215-), 2 (-N216-), 3 (-N217-) and 4 (-N218-).

Removing and installing

Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 38
There are two types of transmissions:

For transmissions with hydraulic regulation -E17-, the transmission input speed sensor (inductive sensor ) is secured to the underside of the valve body.
For transmissions with hydraulic regulation -E18/2-, the transmission input speed sensor (camshaft position sensor ) is secured behind valve body at transmission housing.



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