Honda Civic Service Manual: Thermostat

Water Passage Removal and Installation (K24Z7)

1211F4 1. Radiator Cap 1. Wait until the engine is cool, then carefully remove the radiator cap. ...

Thermostat Housing Removal and Installation (R18A9)

1. Radiator Cap 1. Wait until the engine is cool, then carefully remove the radiator cap. ...

See also:

Honda Civic Owners Manual. Inspection and Maintenance
For your safety, perform all listed inspections and maintenance to keep your vehicle in good condition. If you become aware of any abnormality (noise, smell, insufficient brake fluid, oil residue on the ground, etc.), have your vehicle inspected by a dealer. (Note, however, that service a ...