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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Refrigerant System




- Use halogen leak detector Hitec HI400A-TEL or equivalent to check for refrigerant leaks.
- Refrigerant dissipates very quickly. Avoid drafty or windy areas when checking for leaks.
- If the refrigerant system is discharged (empty), charge system with approx. 100 g (3.5 oz) of refrigerant in order to check for leaks.
- Check A/C system for leaks following leak detector manufacturer's instructions