JimFreeh, Sugar Bear, christuna, Ferdman, t walgamuth and RobertFini, thank you for all of your excellent comments, advice and feedback. As for those who asked for pictures of the location of the undercarriage on my 1994 Mercedes E320 wagon, I was unabled to do so due to the fact the Mercedes is now in the shop.

I wanted to get to the bottom of the issue with a clear cut understanding and exactly what is going on. So I was abled to contact the shop foreman and asked him explain specifically and tell me exactly what needs to be done on the transmission tunnel repair? His response was the tunnel above the transmission at the end of the tail shaft above where the front drive shaft attaches to the transmission. The tunnel can be replaced separately, the backing of the carpet is visible through the grooves cut in the tunnel. It does also house the muffler hanger support as well, with the tunnel being damaged to the point of being able to see the backing of the carpet it needs to be replaced. It can be cut out and a new one welded in.

In addition, I asked for further details on the subject matter. His response to that was the transmission tunnel is a separate piece that can be cut out and the new one welded in, the part number for the tunnel is 124 610 06 71. The tunnel covers the entire area over the transmission from the bulk head (fire wall) to right where the drive shaft attaches to the transmission output shaft yoke.


Does this above explanation of the issue make any sense at all?

Any comments, feedback and/or advice on the latest development is greatly appreciated. Thanks to all for reading.