64 11 273 Replacing water valve for heater (N74): Recycling

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Coolant emerges when coolant lines are detached. Have a suitable collecting container ready.

Catch and dispose of escaping coolant.

Observe country-specific waste-disposal regulations.

Necessary preliminary tasks:

Remove LEFT INTAKE FILTER HOUSING
Remove heat shield or bend slightly to one side

NOTE: For purposes of clarity, graphic shows engine removed.

Fig 1: Identifying Water Valve, Plug Connection And Hose Clips

Courtesy of BMW OF NORTH AMERICA, INC.

Remove spring band clamps (1) and coolant hoses.

Disconnect plug connection (2).

Pull water valve (3) upwards out of holders.

Installation:

Do not mix up connections of coolant hoses.

Replace damaged coolant hoses.

Installation:

Make sure rubber mount (1) and guide lug (2) are securely seated in holders (3) on wheel arch body.

Fig 2: Identifying Wheel Arch Body Holders, Rubber Mount And Guide Lug

Courtesy of BMW OF NORTH AMERICA, INC.