And Now The MB 722.9 Valve Body

The 722.9 is a 7 speed automatic transmission developed by Mercedes Benz. It has 7 forward speeds and 2 reverse speeds. This unit is also referred to as the NAG-2, V7A-700 and the 7G-Tronic.

As best we can figure out the 722.9 transmission was introduced back in 2000 in the C Class Mercedes Benz for the markets in China, Egypt, Germany, South Africa, India and Malaysia. It came to the State in 2005 in the C Class, E Class and the S Class. Since then it has been introduced in a variety of different MB vehicles for most markets.

The valve body is one of the larger ones we have seen around here. Bigger than Nissan's RE5RO5 valve body. It has eight solenoids, speed sensors, electronic control module (ecm) and fluid temperature sensor all incorporated with in the valve body. All together it is know as the Electrohydraulic Control Module.

2