The Mercedes Benz M-Class W164 Series.

Is a luxury sport utility vehicle SUV was manufactured between 2005 and 2011. The second generation of the M-Class was officially presented at the Detroit Auto Show in 2005. The second generation of the M-Class was officially presented at the Detroit Motor Show in 2005. It was a vehicle mostly new compared to its predecessor, its more sporty and more aerodynamic aspect achieving the reduction of the coefficient of resistance to 0.34. The new M-Class is 71 mm wider, 150 mm longer and 5 mm lower than the first model and was recognized as the "Best New Sports Utility Vehicle" in the 2006 Canadian Car of the Year awards.

Different versions were equipped with gasoline and diesel engines:

Mercedes Benz ML 350 | engine Mxxx | V6 cylinder | 3.5 liters 
Mercedes Benz ML 450 | engine Mxxx | V6 cylinder | 4.6 liters 
Mercedes Benz ML 500 | engine Mxxx | V8 cylinder | 5.0 liters 
Mercedes Benz ML 550 | engine Mxxx | V8 cylinder | 5.5 liters 
Mercedes Benz ML 63 AMG | engine M156 | V8 cylinder | 6.2 liters 
Mercedes Benz ML 280 CDI 
Mercedes Benz ML 300 CDI | engine OMxxx | V6 cylinder | 3.0 liters 
Mercedes Benz ML 320 CDI 
Mercedes Benz ML 350 CDI 
Mercedes Benz ML 420 CDI 
Mercedes Benz ML 450 CDI 
Source: Wikipedia

Actually, we have these manuals for the Mercedes Benz M-Class, W164 Series: