To rebuild the tranny on my 89 560SEL, My mechanic charged me for Original Mercedes parts from Mercedes and labor which totaled to $1k. Many charge different and the work is done differently in terms of quality. I have put about 10k miles on the car now and the tranny shifts like new. Its better if you know someone who can rebuild the tranny for you so you can still keep the original housing and such... Good Luck

__________________
2001 E55

2001 E320 Sedan

2001 Subaru Legacy

2006 SLK280

2016 Subaru Outback 3.6