Remove/install coolant lines of heating system to firewall for heater in rear passenger compartment · ar8360s0014e · Mercedes-Benz WIS

AR83.60-S-0014E

Remove/install coolant lines of heating system to firewall for heater in rear passenger compartment

30.04.2020

Model	447.8 with engine 780.702
	with code HZ7 (TEMPMATIC semi-automatic air conditioning in rear)

Remove/install coolant lines of heating system to firewall for heater in rear
passenger compartment

1	Coolant lines
2	Screw
3	Nut

S83.60-A001-76

 Danger	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
 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
 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
Topical note	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		AH00.00-Z-0300-01A
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Topical note	Special instructions for lifting and supporting vehicle		AH00.60-N-0100-01A
 	Remove/install
1	Remove integral carrier.		AR31.35-S-0001G
2	Remove front feed hose from coolant lines (1).		AR83.60-S-0012E
3	Remove bolt (2).
4	Remove nut (3).
5	Remove coolant lines (1) downwards.	 To do so, remove feed and return hose at top. Collect coolant which flows out.
		 Commercially available devices/tools Collecting pan
		 Installation: Check clamps for damage.
		 Hose clamp pliers	*454589003700
		If damage is present,
		
		replace affected clamp.
6	Install in the reverse order.

454 589 00 37 00

Hose clamp pliers

Referenced documents

ah0000p500001a Notes on avoiding damage through contamination and foreign objects
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
ah0060n010001a Special instructions for lifting and supporting vehicle
ar3135s0001g Remove/install integral carrier
ar8360s0012e Remove/install front hoses for feed and return to coolant pipes for heater in rear passenger compartment
as0000z001001a Risk of death caused by vehicle slipping or toppling off of the lifting platform.
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.