99 CLK430 Transmission

[neonflx]

Here is my situation

My 99 CLK430 has been having tranny issues, the Problem:
1. transmission will make clunking sound when rapid acceleration from a stop
2. transmission will make clunking sound when rolling to a stop and stopping
3. transmission will make a clunking sound when rolling to a stop NOT stopping and accelerating again
4. transmission slips some while taking slow turns and accelerating

Seems to happen on both S and W mode (however it seems than in W mode problem is not as noticeable), fluid was drained (including torque converter) and replaced with original MB fluid, filter was also replaced.

MB dealer charged me 200.00 no faults were found, possible internal mechanical, MB wants 4,700 to replaced tranny.

Euro Car Shop especializing on MB charged me 46.00 to find no faults and want 3,800 to replaced tranny.

Car runs great once past the initial clunk seems between 1st and 2 gear I think but can say with certainty. Once on high gear it runs smooth plenty of power and responsive no slippage noticed.

I am currently deployed in Iraq (will be home soon, knock on wood) and have saved some money and would like to know if anyone has any suggestions before I go and replaced the tranny, thank you.