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)

Or, hide this message: temporarily or permanently

Without A/C



Heater Core







Remove or Disconnect


1. Drain cooling system.
2. Remove heater inlet and outlet hoses.
3. Remove radio noise suppression strap.
4. Remove heater core cover retaining screws and remove cover.
5. Remove heater core.


Install or Connect


1. Install Heater core.
2. Install heater core cover retaining screws and cover.
3. Install radio noise suppression strap.
4. Connect heater inlet and outlet hoses.
5. Fill cooling system and check for leaks.