Check coolant hose routing · sm2020p0008a · Mercedes-Benz WIS

SM20.20-P-0008A

Check coolant hose routing

18.10.07

ENGINE 642 in MODEL 204

P20.20-2343-04

Coolant hose routing

1 Coolant hose

2 Charge air hose

3 Coolant line

P20.20-2344-04

Area of longitudinal member

1 Coolant hose

4 Longitudinal member

P20.20-2345-04

Area of expansion reservoir

1 Coolant hose

P20.20-2346-04

5 Hose clamp

Operation no. of operation texts or standard texts and flat rates

Category	Op. no.	Operation text
P	025814	Check coolant hose routing
P	025815	Correct routing of coolant hose (after check)
P	025816	Replace coolant hose (after check)

	Checking
1	Check whether vehicle is affected	Model 204 from WDD2040221A000008 to WDD2040222A000601	SM20.20-P-0008-01AA
2	Remove engine trim panel
3	Remove engine intake air duct upstream of air filter
4	Check routing of coolant hose (1)	 Coolant hose (A) must be routed between charge air hose (2) and coolant line (3). On vehicles with code 581 Comfort automatic air conditioning, the coolant hose must have sufficient space relative to the longitudinal member (4).
5	Check coolant hose (1) for signs of damage	 If coolant hose (1) is routed as shown and there are no chafe marks in area of longitudinal member (4), take no further action. If there are chafe marks in area of longitudinal member (4), continue with step 9.
 	Remove/install
6	Disconnect coolant line from expansion reservoir (picture showing area of expansion reservoir)	 Only if the coolant hose (1) is not routed as shown and there are no chafe marks in area of longitudinal member (4).
7	Correct routing of coolant hose (1)	 Loosen clamp (5) and turn coolant hose in direction of arrow until the hose is routed so that it will not chafe in the area of the longitudinal member (4). Ignore the marking.
8	Install in the reverse order	 End measure.
9	Drain coolant		AR20.00-P-1142CW
10	Replace coolant hose	 Ensure that it cannot chafe.
11	Install in the reverse order

Parts ordering notes