Encapsulation shroud or pan or belly pan is a large piece of plastic that covers the underside of the vehicle from about where the radiator begins on back about 3 ft. or so.
Use the SEARCH facility for air bleeding techniques. In one post it was suggested to elevate the front of the car slightly, remove the coolant cap; then start car and watch for air being expelled from the coolant expansion tank. Some simply remove the coolant cap and start the car.
1991 300-SEL - Model 126
M103 - SOHC
James Madison - Oppressors can tyrannize only when they achieve a standing army, an enslaved press, and a disarmed populace.
Liberty Firearms Training - After years of trying to regulate California criminals with a never ending stream of gun control laws they have still not given up with the belief that if they make something a crime that criminals will miraculously start obeying the law.