sorry guys I use the WIS and the Star for information, maybe MB Germany was wrong in sending us the Star diagnosis which indicates what I share in the forum. Again there is a sequence if you really need to change the whoel ATF fluid, you will have to use a special tool and cannot just drain and pour in fluid, be my guest do what you think may be right and who knows its not me whos going to spend to repair. GOOD LUCK GUYS.