Suzuki Wagon R Manual page 1272

Upside
ON-VEHICLE SERVICE
WARNING:
D Check to make sure that engine coolant temperature is
cold before removing any part of cooling system.
D Also be sure to disconnect negative cord from battery ter-
minal before removing any part.
THERMOSTAT
REMOVAL
1) Drain coolant and tighten drain plug.
2) Remove radiator inlet hose (2) at thermostat cap.
3) Remove water inlet pipe bolt.
4) Remove thermostat cap (1).
5) Remove thermostat (1).
INSTALLATION
1) When positioning thermostat (1) on thermostat case (3), be sure
to position it so that air bleed valve (2) comes at position as
shown in figure.
2) Install thermostat cap to thermostat case.
3) Install water inlet pipe bolt.
4) Connect cooling water hose.
5) Fill cooling system (refer to COOLING SYSTEM FLUSH AND
REFILL in this section).
6) After installation, check each part for leakage.
ENGINE COOLING 6B-5