Well guys i have the subject wagon. I am not getting my 5th gear at all. Maybe this model came with this problem. I have driven four gear tranmission in my previous Merc, never had any problem in that.

My Mechanic had checked all the electronic circuts but could not trace the fault. I am now moving in 4 years. Otherwise the gear shifting from 1st to 4 th is ok. Now there is no Od (5th gear)

I have changed the tranny oil with the new filter but there is no improvement in getting the 5th gear on.

Anyone can tell what could be the problem

Check vaccum line between intake manifold, ignition control unit,otherwise check the electric again, check loose connection at throttle control switch ,check for loose wiring connection between TCM and transmission.

I am pretty certain that the 5 speed electronic transmission 722.6 didn't show up in the 124 series at all. It started with the W210 series.

Steve

722.6 five speed wasn't in the 124 but the 722.5 was - although not in the U.S.

Deanyel is correct. There was discussion about that subject about four years ago.

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95 E320 Cabriolet, 169K

It's the 722,5 and the transmission is vaccum controld but the fifth gear is a electronic switch you press the stick left and the switch put the transmission out of the 5 gear only shift in 4th gear.