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August 1, 2019 Service bulletin

A/c cooling: intermittent reduction of air flow

BMW technical service bulletin B640613 for 2012-2016 BMW 328I, 2017 BMW 330I and 2012-2017 BMW 335I and others.

Bulletin number
B640613
Component
Equipment: appliance: air conditioner
Summary
A/C COOLING: INTERMITTENT REDUCTION OF AIR FLOW This Service Information Bulletin (Revision 9) supersedes SI B64 06 13 dated June 2017. Customer may complain of reduced air flow when the air conditioning system is operated for an extended time usually longer than 30 minutes. The evaporator starts to freeze up due to the position of the evaporator temperature sensor.

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