WC-Condenser Inlet Hose Removal And Installation/Replacement

Mobile Repair Possible: No

Special Tools Required:

Hose Spring Clamp Removal Tool - 51012018 (or equivalent)

Vacuum and Fill Machine - 81392152473

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In some Service Instructions, the coolant hoses are shown with a ring pull (1).

This ring pull (1) is only present on a new hose and must be removed after the coolant hose has been installed.

The coolant hoses installed in the vehicle have only spring band clamps (2).

Overview:

Fig 1: WC-Condenser Inlet Hose Components Location

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WARNING: Electricity hazard
Failure to follow specified procedures may result in death or serious injury from electric shock when working on or near high-voltage components.

Only authorised and appropriately trained persons may carry out work on high-voltage vehicles and components.
Perform High Voltage isolation procedure prior to commencing work
Ensure appropriate Personal Protective Equipment is worn until the system is verified safe

WARNING: Hot surface
Failure to follow specified procedures may result in severe injuries due to burns or scalds.

Do not commence work until components/liquids have sufficiently cooled down.
Always use personal protective equipment (PPE).

NOTE: Contamination
Contamination or moisture entering the cooling system can lead to malfunction or functional failure.

The vehicle cooling system and any removed components should be capped/sealed during work to prevent contamination entry

Removal Procedure:

Disable HV-System. Refer to VEHICLE HIGH VOLTAGE ISOLATION AND ENABLING PROCEDURE
Remove vehicle control unit. Refer to VEHICLE CONTROL UNIT (VCU) REMOVAL AND INSTALLATION/REPLACEMENT
Drain cooling system. Refer to COOLING SYSTEM DRAINING AND FILLING (HV BATTERY AND EMOTOR)

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Remove 2 screws (1).
Torque: 8 Nm
Remove VCU Bracket (2)

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Loosen clamp (1).
Remove hose WC-Condenser Inlet Hose (2).
NOTE:
Environmental Risk
- Collect and dispose of leaking liquids.
- Observe country-specific disposal regulations.
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Loosen clamp (1).
NOTE:
Environmental Risk
- Collect and dispose of leaking liquids.
- Observe country-specific disposal regulations.
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Remove cable tie (1).
Installation note: Replace it.
Loosen clamp (2) through the wheelhouse and remove the WC-Condenser Inlet Hose.
NOTE:
Environmental Risk
- Collect and dispose of leaking liquids.
- Observe country-specific disposal regulations.

Installation Procedure:

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Installation note: Use the spring band hose clamp pliers to push the hose on. If replacing with a new hose, you will remove the ring pull (1) to release the clamp. Refer to Figure

Make sure that the spring band clamp is aligned inside the marking on the hose. Refer to HOSE CLAMP REMOVAL AND INSTALLATION/REPLACEMENT GUIDELINES - SPRING TYPE

Installation is the reverse of removal procedure, noting the following.
All fasteners must be tightened to torque specification!
Fill Cooling System. Refer to COOLING SYSTEM DRAINING AND FILLING (HV BATTERY AND EMOTOR)
Install vehicle control unit. Refer to VEHICLE CONTROL UNIT (VCU) REMOVAL AND INSTALLATION/REPLACEMENT
Enable HV-System. Refer to HV-SYSTEM DISABLING/ENABLING
Diagnostics, Programming and Setup. Refer to DIAGNOSTICS, PROGRAMMING AND SETUP USING SCAN TOOL IN SERVICE