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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Coolant Temperature Sensor / Switch HVAC: Service and Repair

WARNING: The cooling system is pressurized when the engine is warm. Wear gloves and other appropriate protection, and slowly and carefully release system pressure, if necessary, before performing repairs.

Thermal Switch -F163-:

1 - Clip
2 - Connection
4 - O-ring
4 - A/C cut out thermal switch -F163-
5 - Harness connector

NOTE: Refill coolant to proper level after removing and installing A/C switches or sensors.