Ok, this has turned crazy. I have followed every instruction from older posts and NOTHING works. I have the car sold and I desperately need to reset the service b indicator. I have followed the steps, but NEVER see the "Service A/B"menu after start up. I get the voltage to appear then start up. I scroll through the menu and get the vin number, a bunch of stats with the oil level and the DSP on/off for the dyno, but nothing else????? I have read other posts and somebody else got stuck in the same spot. No "Service A/B" option to choose from. Has anyone figured this out for the 05 CLK 55????