Mercedes G55 2009 Stage:Stage 1 If the iDrive asks you

If the iDrive asks you to update your apps

The DME transmission tune increases shift speed

of torque through the mid-range

You will need to disable the AUTO UPDATES by going to the following in the iDrive menu

AMS Ancillary Components

Mercedes G55 2009 Stage:Stage 1 If the iDrive asks youExpertly calibrated and meticulously refined, DME Tunings ECU software is guaranteed to give you MORE of a good thing. More horsepower, more torque, and a more exhilarating driving experience by delivering usable power through improved throttle response and torque management. With additional ft. lbs. of torque through the mid range, acceleration out of your favorite corner and onto the straight is noticeably quicker throughout the rev range. DME