11 51 000 Removing and installing/replacing coolant pump (N63)

WARNING: This page is about a different variant/trim than selected.

WARNING: Danger of scalding!

Only perform this work after engine has cooled down.

Recycling:

Catch and dispose of drained coolant in a suitable container.

Observe country-specific waste-disposal regulations.

IMPORTANT: If a coolant pump which has already been operated is reused, it must be filled immediately after being removed with coolant (mixture ratio 1:1 / water: coolant).

Necessary preliminary tasks:

Drain coolant . See 17 00 008 DRAINING AND ADDING COOLANT IN RADIATOR (N62TU, N63) .
Remove drive belt .

Unlock and detach plug connections (1).

Unlock and detach all coolant hoses on coolant pump.

Release screws (2).

Tightening torque 11 51 1AZ, see 51 71 SEALS AND LOOSE BODY PARTS

Lift out coolant pump with a swivelling movement.

Installation:

Replace seal .

Fig 1: Identifying Coolant Pump Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Remove coolant thermostat from faulty coolant pump.

Convert coolant thermostat to new coolant pump.

Tightening torque 11 53 1AZ, see THERMOSTAT AND CONNECTIONS

Installation:

Replace sealing ring .

Assemble engine.

Vent cooling system and check for water leaks. See 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N63) .