Mr. rain on my parade, the module board was only $159 from Mercedes Benz, the price I listed before was for the cost of different sensors they had replaced because of their diagnostic computer reading the error plus an oil change and the labor for diagnosing problems. If I would of told them about the module board before all that work I would of just done the work myself at a cost of less than $120 just for the soldering supplies. I do know what you mean though, if I do have any other problems in the future this is where I'm coming to 1st. Thx yah guys out there. Bless you all.