Summary
This service bulletin addresses poor heater performance from the passenger side in certain Infiniti models.
Affected Vehicles: 2011-2013 M and M Hybrid, 2014-2015 Q70 and Q70 Hybrid.
Symptoms: VENT air temperature on the passenger side is more than 10°F colder than the VENT air temperature on the driver side.
Repair Procedure: Drain engine coolant, modify thermostat, flush cooling system, replace heater core, and replace thermostat with gasket.
Important Notes: This bulletin is intended for qualified technicians, and proper training and equipment are required to perform the repair.
Manual:
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