Honda Civic Service Manual: Engine Cooling

Engine

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Coolant Replacement (R18A9)

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

See also:

Honda Civic Service Manual. Trunk Side Trim Panel Removal and Installation (Natural Gas models)
Removal 1. Trunk Floor Lid (Natural Gas Model) 1. Remove the trunk floor cover (A). 2. Trunk Lid Weathers ...