Model C230
Year 1997
Mileage 175K
Transmission Type: Automatic - Original Transmission.
Location: Sacramento, California

Did I search this site? Yes but nothing specific to C230 was found by me on transmission

Problem With Car: I feel a harsh upshift at low speed. Sometimes it makes the car jump like "bump" when changing gear from 3 to 4. It is happening more frequently now. The car revs just before it makes the harsh upshift or "bump".
I took the car to the dealership and here is what the wrote on my statement of work after running a short test.

"Check Adaptation Codes. Trans Adaptations at Max 3-4 and 4-5 At 150 J3 Fill Rate Is 15 Trans Worn Out"
"Check Trans for Harsh Upshift. Found Adaptations at Max. No codes stored and fluid level is good"
"Reccomend Trans"
"New Trans $6200"

My options are to buy a new one and pay the above price which is more than what the car is worth or get a rebuilt or get someone to open up the transmission and work on it.

Question: What is my most viable option? Or do I have other options I am not aware of? Does anyone know where I can take it to in Sacramento California?
Thanks folks!!