Remove/install coolant pipe - AR20.20-P-7450MCU

ENGINE 132.910 in MODEL 451.3/4 

Fig 1: Identifying Coolant Pipe Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Drain coolant		AR20.00-P-1142MCU
2	Remove intake manifold (2)		AR09.20-P-1310MCU
3	Mark installation position of the coolant hose (3) to coolant pipe (1) (arrow)
4	Release clamp (4) and detach coolant hose (5) from coolant pipe (1)	: Replace clamp (4).
5	Remove bolt (6) for coolant pipe (1) on cylinder crankcase		*BA20.10-P-1009-01J
6	Remove bolt (7) for coolant pipe (1) on oil pan		*BA20.10-P-1010-01J
7	Pull coolant pipe (1) out of timing case cover (8)	: Replace seal ring on coolant pipe (1).
8	Release clamp (9) and detach coolant hose (3) from coolant pipe (1)	: Replace clamp (9).
9	Remove coolant pipe (1)
10	Install in the reverse order

COOLANT PUMP, COOLANT THERMOSTAT

Number	Designation		ENGINE 132.9
BA20.10-P-1009-01J	Bolt, coolant pipe at crankcase	Nm	10
BA20.10-P-1010-01J	Bolt, coolant pipe to oil pan	Nm	10