Discard the retaining rings.
Pull the lines straight out from the connectors.
Important: When performing the following procedure, do not reuse the old retaining rings. Replace the old retaining rings with new ones.
Do not install the new retaining ring onto the fitting by pushing the retaining ring down over the fitting.Pull back on the engine oil cooler lines to ensure a proper connection.
Important: Do not manually press the retaining clip when installing the plastic cap.