Heater Coolant Shut-Off Valve -N279-, Removing And Installing: Installing
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Installation is done is reverse order, observe the following:
NOTE:
Secure all hose connections with hose clamps used in series production.
Make sure this parts do not come in direct contact with the vehicle body or any other parts.
-- Make sure that, when sliding on the coolant hoses, as little air as possible remains in the shut-off valve and in the coolant hoses, refer to COOLANT CIRCUIT, BLEEDING .
CAUTION:
- The coolant flow direction is marked on the Heater Coolant Shut-Off Valve -N279-.
- Be sure the coolant hoses are connected correctly to the Heater Coolant Shut-Off Valve -N279-.
- Interchanged coolant hoses can result in failure of the passenger compartment heater due to the incorrect flow direction of the coolant.
- Coolant hoses that are bent cannot allow enough coolant to flow causing the passenger compartment heating to fail.
-- Tighten the bolts -3- to 8 Nm.
-- Check the coolant level and bleed the coolant circuit. When doing so, make sure to observe the relevant instructions: COOLANT CIRCUIT, BLEEDING .
-- Check the activation and the functionality of the Heater Coolant Shut-Off Valve -N279-, using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.