If this is a vehicle you are referring to, there is generally a diagram on the fusebox cover which shows which devices are protected by which fuses. If you are dealing with a fusebox in a house, that is rarely true. In that case, all one can do is remove the fuses one by one and see which areas of the house lose power.
Mercedes-Benz CLS-Class was created in 2004.
The 2012 Mercedes-Benz CLS-Class has 32 valves.
The 2009 Mercedes-Benz CLS-Class has a V8 engine.
The 2006 Mercedes-Benz CLS-Class has a V8 engine.
The 2010 Mercedes-Benz CLS-Class has a V8 engine.
The 2014 Mercedes-Benz CLS-Class has 32 valves.
The 2008 Mercedes-Benz CLS-Class has a V8 engine.
The 2011 Mercedes-Benz CLS-Class has a V8 engine.
The 2014 Mercedes-Benz CLS-Class has a V8 engine.
The 2013 Mercedes-Benz CLS-Class has 32 valves.
The 2009 Mercedes-Benz CLS-Class has 32 valves.
The 2011 Mercedes-Benz CLS-Class has 32 valves.