That trans should be serviced! Don't listen to MB about lifetime fluid, there isn't any such thing! If the trans is serviced it will LAST 200K to 300K.
WE (dealer) have replaced/repaired at least 2000 of the 722.6 transmissions in the last 2 years! Spend the money.

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MERCEDES Benz Master Guild Technician (6 TIMES)
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44 years foreign automotive repair
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190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
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