Its just not Mercedes Manuals-all of 'em. I bought a Haynes Manual recently for my VW-TDI and was looking for the Specs page that listed the wattge/volts for replacement Bulbs--NO wrere in that Big manual is it even listed-same for the Extensive Owner's manual that comes with the Car. When asked about it, my Indy mechanic said "When you need to replace stuff like that, go to a shop" Right, and pay someone a labor rate of $70-$100 per hour to change a turn signal bulb. This is the idea in the VW manual-even says exactly that. Give me a break!