Has anyone changed out a tranny control module? I would like to know the procedure. I have searched for days both here and on benzworld and although everyone mentions replacing it, no one actually says where it is exactly located, or if there is an exact procedure for it. I have an ongoing shifting problem on a 98 ML320. I have taken it to several independent shops and have gotten different reasons for the hard shifting problem. I had the dealer check the transmission fluid and it is "acceptable." I have changed out the trans fluid, have a new transfer case, changed out the MAF sensor, and still have the shifting problem. The thing with the shifting is that sometimes, the car shifts wonderfully....it is when you have to accelerate rapidily that the shifting gets screwy. Im wondering if the MAF sensor could still be to blame? I bought the sensor used, and just figured that I would change them out and if it got better it was the MAF sensor, and if not, it was something else...perhaps they are both bad?

Anyway, could someone please give me info on the transmission control module? Is it as easy to replace as the MAF sensor? I thought I saw a mention to it being under the drivers side steering wheel???

Thanks for your help,
Carlos

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1994 S320
131K miles

1998 ML 320
126K miles

1994 Blue C220
122K miles

Im going to Grad School @ the University of Iowa
Go Hawkeyes!!!