Hello Everyone!
Well, I've been searching and searching, and have not yet found anyone that describes my exact transmission issue. I have a 2001 A6 2.7T Quattro Tiptronic, 90k. Problem: When I slow to 10 mph or less, but do NOT come to a stop, then accelerate again, even with light pressure on the pedal, I get a very hard clunk before power is restored and motion is retained. Doesn't matter if the car is cold or warm, or anything else. Could this be a problem with vacuum line pressure, or something else? No warning lights are thrown on the dash, and I have not taken it to the mechanic yet to check for codes. It should be noted that if I make a full stop (I know that is duplicitous), i.e., go to 0 mph, then accelerate, the problem does not exist. I'm losing my mind and don't want to cause any damage here, please help! FYI, I have NO other transmission problems yet.

 

Very common problem. Nothing to fix. Don't ask me what it is, but I know it is normal.

 

But it sucks, and it is so hard some times that I feel like I'm going to leave the trans on the ground. I'm somewhat mechanical, but hey, these crazy German cars. . . is a vacuum tube even a possible problem? It's odd how it didn't do it from 82k to 85k miles when we bought it, but then became more troublesome and common after that. I might just take it to my guy after the new year. Oh well. Oh, and here's another good one, we live on a brick street, and it's kicking the strut's butts. LOL Crickety, crackety.

 

Mine can shift hard sometimes as well but not so hard I think the transmission is going to fall out. After buying my car I changed the trans fluid and the holding 1st gear and 2nd gear thump was greatly reduced. But after 6 months or so it was right back to the way it was. It is possible your engine/transmission mounts are bad and amplifying the thump.

Jeff

 

Great information, Jeff. Thank you!
(I just felt like you need to know at least one person finds the insight very helpful).