Remove/install hybrid system coolant pump · ar2010w1300a · Mercedes-Benz WIS

AR20.10-W-1300A

Remove/install hybrid system coolant pump

02.12.2019

Engine	924.9 in model 970
	with code MY5 (BlueTec Hybrid)

W20.10-1067-06

 	Remove/install
 Danger	Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)	Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.	AS00.00-Z-0035-01A
Topical note	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
Topical note	General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system		AH00.00-Z-0300-01A
1	Disconnect coolant hoses (1, 3)	 Clamp	*000589543700
 Warning	Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from 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
2	Remove coolant hoses (1, 3) on hybrid system coolant pump (A137)
3	Disconnect electrical connector (5) from hybrid system coolant pump (A137).
4	Unscrew bolts (2) and remove hybrid system coolant pump (A137) with bracket (4)	 Bolt, hybrid system coolant pump to bracket to battery carrier	*BA20.10-N-1007-01C
5	Remove bracket (4) from hybrid system coolant pump (A137)	 Bolt, hybrid system coolant pump to bracket	*BA20.10-N-1006-01C
6	Install in the reverse order
7	Check and correct cooling system fluid level
			AP08.30-W-0810A

 Coolant pump, coolant thermostat

Number	Designation		ENGINE 924.9, 925.9, 926.9
BA20.10-N-1006-01C	Bolt, hybrid system coolant pump to bracket	Nm	20

 Coolant pump, coolant thermostat

Number	Designation			ENGINE 924.9, 925.9, 926.9
BA20.10-N-1007-01C	Bolt, hybrid system coolant pump to bracket to battery carrier	M8	Nm	25
		M10	Nm	50

000 589 54 37 00

Clamp

ah0000n000101a Notes on self-locking nuts and bolts
ah0000z030001a General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment
ap0830w0810a Cooling system - check/correct fluid level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration
as0000z003501a Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)
as2000z000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.