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

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

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Thermostat: Service and Repair

Thermostat Replacement
1. Drain the engine coolant.
2. Remove the lower radiator hose and the thermostat cover, then remove the thermostat.
3. Install the thermostat with a new rubber seal.
4. Refill the radiator with engine coolant, then bleed air from the cooling system.





5. Clean up any spilled engine coolant.