Remove/install coolant lines - AR20.20-P-7440LFB

ENGINE 157, 278 in MODEL 217, 222 

Illustrated on right ATL 

Fig 1: Coolant Lines Remove/Install Components - Shown On Right ATL

Courtesy of MERCEDES-BENZ USA

Shown on left ATL 

Fig 2: Coolant Lines Remove/Install Components - Shown On Left ATL

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Drain coolant at radiator		AR20.00-P-1142LF
2	Remove charge air line from air filter to ATL		AR09.41-P-8620LFB
3	Remove poly-V belt		AR13.20-P-0001LFB
	Remove coolant lines (1a, 1b)
4	Detach coolant lines (1a, 1b) at ATL	Install new sealing rings. Bolt, coolant line to turbocharger/oil filter/coolant pump/timing case cover	*BA09.40-P-1005-01R
5	Detach distribution manifold (3) on timing case cover and coolant line (1a)	Install new sealing rings. Bolt, coolant line to turbocharger/oil filter/coolant pump/timing case cover	*BA09.40-P-1005-01R
6	Detach coolant line (1b) from coolant pump and remove	Install new sealing rings. Bolt, coolant line to turbocharger/oil filter/coolant pump/timing case cover	*BA09.40-P-1005-01R
7	Install in the reverse order
	Remove coolant lines (2a, 2b)
8	Remove lower engine compartment paneling		AR61.20-P-1105LF
9	Detach distribution manifold (3) at coolant pump	Bolt, coolant line to turbocharger/oil filter/coolant pump/timing case cover	*BA09.40-P-1005-01R
10	Disconnect coolant line (2a) at distribution manifold (3)	Install new sealing rings.
11	Detach coolant lines (2a, 2b) at timing case cover/coolant pump	Install new sealing rings. Bolt, coolant line to turbocharger/oil filter/coolant pump/timing case cover	*BA09.40-P-1005-01R
12	Detach bracket for coolant line (2a) at oil filter housing
13	Unfasten double clamp (4)
14	Detach coolant lines (2a, 2b) at ATL and remove	Install new sealing rings. Bolt, coolant line to turbocharger/oil filter/coolant pump/timing case cover	*BA09.40-P-1005-01R
15	Install in the reverse order