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

Cooling System: Service Precautions

CAUTION
^ Wear working clothing, including a cap, protective goggles, and protective shoes during operation.
^ Remove contamination including dirt and corrosion before removal, installation or disassembly.
^ Keep the disassembled parts in order and protect them from dust or dirt.
^ Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
^ Be careful not to burn your hands, because each part in the vehicle is hot after running.
^ Be sure to tighten fasteners including bolts and nuts to the specified torque.
^ Place shop jacks or safety stands at the specified points.
^ Before disconnecting electrical connectors of sensors or units, be sure to disconnect the ground cable from battery.

To prevent cooling system leaks, always add Genuine Subaru cooling system Conditioner (Part No. SOA635071) whenever the coolant is replaced.

The content of this article/image reflects the changes called out by TSB - 18-74-04-mu.