Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Primary

REMOVAL PROCEDURE

TOOLS REQUIRED
J 39529 Heater Hose Pliers




1. Drain the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
2. Remove the hose clamps from the outlet pipe and the inlet pipe using the J 39529.




3. Disconnect the heater inlet pipe and the outlet pipe from the by-pass valve(s).
4. Remove the by-pass valve (3) from the vehicle.

INSTALLATION PROCEDURE




1. Install the bypass valve (3) into the vehicle.
2. Connect the heater inlet pipe and the outlet pipe to the bypass valve(s).




3. Install the hose clamps using the J 39529.
4. Fill the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
5. Verify that the system has no leaks.