Update, I replaced the OVP relay new from Mercedes, no change. I have also noticed the last few days in the mornings that the car doesn't want to change gears when cold and i can hear a loud sucking noise, almost sure it's the air intake. I plug the ICV back up and it shifts fine and noise goes away. After it warms up i just unplug ICV and all seems fine. Like you said, there shouldn't be an issue but i would like to pinpoint the issue. Thanks