Remove/install pump module for exhaust aftertreatment system · ar1440w2007c · Mercedes-Benz WIS

AR14.40-W-2007C

Remove/install pump module for exhaust aftertreatment system

30.11.11

ENGINES 900.9 in MODEL 375.1, 970, 972, 975, 976 with CODE (MS4) BlueTec 4

ENGINES 900.9 in MODEL 375.1, 970, 972, 975, 976 with CODE (MS5) BlueTec 5

ENGINES 902.9 in MODEL 375.3, 950.5 /6, 952.5 /6, 953.6, 954.5, 957 with CODE (MS4) BlueTec 4

ENGINES 902.9 in MODEL 375.3, 950.5 /6, 952.5 /6, 953.6, 954.5, 957 with CODE (MS5) BlueTec 5

ENGINES 902.9 in MODEL 375.1, 970, 972, 974, 975, 976 with CODE (MS4) BlueTec 4

ENGINES 902.9 in MODEL 375.1, 970, 972, 974, 975, 976 with CODE (MS5) BlueTec 5

ENGINES 924.9 in MODEL 958.0, 970, 972, 974, 975, 976 with CODE (MS4) BlueTec 4

ENGINES 924.9 in MODEL 958.0, 970, 972, 974, 975, 976 with CODE (MS5) BlueTec 5

ENGINES 925.9 in MODEL 970, 972, 974 with CODE (MS4) BlueTec 4

ENGINES 925.9 in MODEL 970, 972, 974 with CODE (MS5) BlueTec 5

ENGINES 926.9 in MODEL 950.5 /6, 952.5 /6, 953.6, 954.5, 957, 958.2 with CODE (MS4) BlueTec 4

ENGINES 926.9 in MODEL 950.5 /6, 952.5 /6, 953.6, 954.5, 957, 958.2 with CODE (MS5) BlueTec 5

ENGINES 926.9 in MODEL 958.0 with CODE (MS4) BlueTec 4

ENGINES 926.9 in MODEL 958.0 with CODE (MS5) BlueTec 5

Remove/install pump module for exhaust aftertreatment system

W14.40-1238-09

Shown on model 950.5

1 Line fitting for AdBlue (suction)

2 Line fitting for AdBlue (feed line)

3 Line fitting for AdBlue (return line)

7 Electrical connector

8 Pump module

9 Chassis-side hose line harness

4 Compressed air connector

5 Line fitting for coolant (outlet)

6 Line fitting for coolant (inlet)

 	Remove/install
Danger!	Risk of burn injuries and scalding when working at AdBlue lines and the components attached to them. Risk of injury to skin and eyes when handling AdBlue. Risk of poisoning caused by swallowing AdBlue	Only pour AdBlue into suitable containers. Wait until the pressure is released before starting any work on the exhaust aftertreatment system.	AS14.40-Z-0001-01A
	Notes on use, material properties and handling of AdBlue		AH14.40-N-0001-01A
1	Open maintenance flap
2	Switch off ignition
Danger!	Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by swallowing coolant.	Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
3	Release pressure in coolant circuit
	Notes on coolant		AH20.00-N-2080-01A
4	Clamp off coolant lines at coolant line fittings (5, 6) using clamping devices	 Clamping device	*000589543700
5	Remove coolant lines from coolant line fittings (5, 6)	 Mark coolant lines relative to coolant line fittings (5, 6). Collect coolant in clean container.
		 Installation: Replace O-rings. Observe identification of coolant lines relative to coolant line fittings (5, 6). Pour caught coolant back into coolant circuit after installing pump module (8).
6	Disconnect electrical connector (7) on pump module (8)	 The disconnected electrical connector (7) must not come into contact with AdBlue. This could cause damage in the wiring harness and the SCR frame module control unit.
7	Check electrical wiring harness		AR14.40-W-2033A
8	Remove compressed air connector (4) at pump module (8)		*BA00.18-N-1003-01A
9	Open insulating tubing in area of AdBlue line fittings (2, 3) to a length of about 20 cm and push back	 Roller tongs	*950589013700
10	Open insulating tubing in area of AdBlue line fitting (1) to a length of about 10 cm and push back	 Roller tongs	*950589013700
11	Clamp off AdBlue line using a clamping device and remove at AdBlue line fitting (1)
12	Clamp off AdBlue lines using clamping devices and remove at AdBlue line fittings (2, 3)	 Mark AdBlue lines to AdBlue line fittings (2, 3).
		 Installation: Replace O-rings. Observe identification of AdBlue lines relative to AdBlue line fittings (2, 3).
		 Clamping device	*000589543700
	Pump module altered		BT14.40-W-0001-01A
13	Remove pump module (8)		*BA14.40-N-1010-02C
	Pump module altered		BT14.40-W-0001-01A
14	Install in the reverse order
15	Fill AdBlue pressure reservoir of pump module (8)	 Only if pump module (8) is replaced.
		Engine 900.9 in model 375, 970, 972, 975, 976 Engine 902.9 in models 375, 950, 952, 953, 954, 957, 970, 972, 974, 975, 976 Engine 924.9 in model 970, 972, 974, 975, 976 Engine 925.9 in models 970, 972, 974 Engine 926.9 in model 950, 952, 953, 954, 957	AP14.40-W-1490A
		Engines 924.9, 926.9 in model 958	AP14.40-W-1490G
 Danger!	Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns from working on the vehicle as it is being started or when the engine is running	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
16	Start engine
17	Inspect cooling system for leaks		AR20.00-W-1010J
18	Check coolant level, correct if necessary	Models 375, 970, 972, 974, 975, 976, 950, 952, 953, 954, 957	AP20.00-W-2010A
		Model 958	AP20.00-W-2010G

 Compressed air lines

Number	Designation			Model 375.1	Model 375.3, 375.4


BA00.18-N-1003-01A	Compressed air connection system SCHÄFER "SDF" in metallic material	M101	Nm	5	5

Compressed air lines

Number	Designation			Model 930, 932, 933, 934, 950, 952, 953, 954, 957, 958	Model 970, 972, 974, 975, 976


BA00.18-N-1003-01A	Compressed air connection system SCHÄFER "SDF" in metallic material	M101	Nm	5	5

Exhaust aftertreatment

Number	Designation		Engine 900.9, 902.9, 924.9, 925.9, 926.9 with code MS4 or code MS5


BA14.40-N-1010-02C	Pump module on bracket	Nm	60

950 589 01 37 00

Roller tongs

Circuit

000 589 54 37 00

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