93 100: transmission wont downshift

[Billing, Eric]

Greetings-I'm hoping for some ideas...

 

My Audi 100 CSQ wagon (165K miles) exhibits the following on rare
occasions. Pulling up to a stop light, slightly aggressive braking, come
to a complete stop-yet the transmission still wants to go. Drive train
shudders for a second or two. Very similar to what you'd expect in a
manual transmission car coming to a stop without pushing the clutch in.
This behavior was first noticed in 1997-1998 at about 50K miles (I've
owned it since July 1996 and 25K miles). At that time, under warrantee
the dealer suspected ABS sensors, which were of course, OK.

 

Impossible to reproduce-I'd say it occurs MAYBE once every other month.
In fact it happens so rarely I never think about it... until now when
I'm attempting to sell it. Sure enough it happens during a test drive by
an interested driver. 

 

I'm thinking ATF fluid levels (how to check?) or since I can't recall
last time ATF was changed, perhaps a fluid change is in order.

 

What do you think?

 

 

 

Eric

 

Eagan, MN

93 100csqw pearl/grey

93 urS4 black/black

01 allroad atlas 6sp.