Draining and filling coolant (Peugeot 206)

Peugeot service centers use a special cylinder 0173/2 to fill the coolant.

Drain the coolant in the following order:

• unscrew plug 1 (pic. 4.74) expansion tank;

• unscrew plug 1 (pic. 4.75) drain hole of the radiator;

Note. Put a piece of hose on the drain hole so that the liquid flowing from the system does not splash.

• unscrew cap 1 (pic. 4.76) drain hole of the cooling system;

• unscrew plug 1 (pic. 4.77) and drain the coolant from the engine cooling system.

Fill the cooling system and remove air from it in the following order:

• before filling the system with coolant, flush it with clean fresh water;
• check the tightness of the engine cooling system;

• install bottle 1 on the filler neck of the expansion tank (pic. 4.78) for filling coolant;
• unscrew all the plugs of the drain holes of the cooling system;
• slowly start pouring coolant into the cooling system;
• sequentially block the drain holes with plugs as coolant flows through them without air bubbles;
• the cylinder for filling the coolant must be filled to the 1 liter mark for proper bleeding of the system;
• start the engine;
• stabilize the crankshaft speed from 1500 to 2000 min^-1 until the end of the second cooling cycle (turning the engine cooling fans on and then off), maintaining the filling of the cylinder, which creates excess pressure in the system;
• stop the engine;
• remove bottle 1 (see fig. 4.78) for filling coolant;
• close the cap on the tank as quickly as possible to remove air bubbles;
• if necessary, bring the coolant level to the maximum mark with a cold engine.