Suzuki Wagon R Manual page 3907

6B3-2 ENGINE COOLING (Z13DT ENGINE)
WARNING:
• Check to make sure that engine coolant temperature is cold before removing any part of cooling
system.
• Also be sure to disconnect negative cable from battery terminal before removing any part.
Cooling System Draining
1) Remove degassing tank cap.
2) Disconnect radiator outlet hose from radiator in order to drain coolant.
3) After draining coolant, be sure to connect radiator outlet hose to radiator and fix it by clip securely.
On-Vehicle Service