BMW M47TU engine coolant bleed procedure.
Car used- BMW e87 120d 120kw

E81/E82/E87/E88
E90/E91/E92/E93
E60/E61
e46

First step is to Remove cap from expansion tank.
Open all vent plugs.

Expansion tank return pipe vent plug and EGR cooler thermostat vent plug.

Add coolant slowly.

Close vent plugs after coolant emerges .
Fill expansion tank with coolant up to edge.

Start engine at idling.
set heater to maximum and fan to low stage. if necessary, top up coolant to maximum fill level.
Close expansion tank cap. Press accelerator pedal several times up to approximately 2500 rpm.
Remove expansion tank cap and if necessary top up coolant to maximum cold fill level.

Let engine Run at idle for approximately 5 minutes with open expansion tank until bubble free coolant can be seen to emerge in expansion tank.

If required, top up coolant to maximum Cold fill level.

Close expansion tank cap.

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