I believe that there are two things I would want to do.
The first thing.................
The easiest, and less messy, is scanning for any transmission faults.  Your
transmission might be in "Limp Mode" due to electrical problems either
outside of the transmission or inside of it.  Not sure if this "LM" would
put the transmission into 3rd making it hard to accelerate from a stop and
then shift fine later though.

BUT you said that it shifts fine once the Audi is moving.
So maybe a solenoid is malfunctioning inside of the transmission and that
should have thrown a code and still allowed for some shifting.  ;-)
Then it could also be either a fluid problem or a fluid pressure problem.
The filter/strainer might be clogged with debris making it difficult for the
pump to get a nice supply of fluid, or the fluid level is low or the pump is
weak.  :-(

So the second thing I would check for is the color of the fluid and the
level of it.  :-)

Finding a place that can actually & honestly service the Audi/VW
transmissions can be difficult so if you post your general location that may
help someone recommend a place.
The procedure should be similar to the Passats.....
http://www.taligentx.com/passat/maintenance/atfchange/
I know only ONE good place around Chicago that I would trust.

BTW I need to change the ATF in mine too!  ;-)

Mark

The tranny's can be serviced, but it is not a very simple process so
it's best to have a good independent european shop do it for you.
Audi claims their transmission fluid is "lifetime", but most of us who
have owned and worked on Audis for a while are aware that this is not
the case.  However, it's not a simple drain-and-then-refill process,
so have someone who's worked on Audi's before do it.

As far as your car not moving - is your car a manual transmission?
Because the fact that your RPMs move but your car doesn't suggests you
need a new clutch.  This would be the first thing you should look
into.

If you have a Tiptronic (automatic with "clutchless" shifting option),
then you may have a problem with your Quattro (all-wheel drive)
system.  If a component of the drivetrain is malfunctioning, (because
all four wheels must move at the same time) your car won't move.  With
the quattro system, either all four wheels move at the same time, or
none of them move at all.  You might want to have your drivetrain
looked at, including axles, cv boots, cv joints, etc, looked at.

Hope this helps point you in the right direction.

On Jul 27, 2:23 pm, "Mark" <m.dohe...@snet.net> wrote:

Thank you for the info. I did fail to mention it is AWD Tiptronic
transmission.

Mark
Mark

The tranny's can be serviced, but it is not a very simple process so
it's best to have a good independent european shop do it for you.
Audi claims their transmission fluid is "lifetime", but most of us who
have owned and worked on Audis for a while are aware that this is not
the case.  However, it's not a simple drain-and-then-refill process,
so have someone who's worked on Audi's before do it.

As far as your car not moving - is your car a manual transmission?
Because the fact that your RPMs move but your car doesn't suggests you
need a new clutch.  This would be the first thing you should look
into.

If you have a Tiptronic (automatic with "clutchless" shifting option),
then you may have a problem with your Quattro (all-wheel drive)
system.  If a component of the drivetrain is malfunctioning, (because
all four wheels must move at the same time) your car won't move.  With
the quattro system, either all four wheels move at the same time, or
none of them move at all.  You might want to have your drivetrain
looked at, including axles, cv boots, cv joints, etc, looked at.

Hope this helps point you in the right direction.

On Jul 27, 2:23 pm, "Mark" <m.dohe...@snet.net> wrote: