BMW 7 Owners & Service Manuals

BMW 7 Series: Replacing Water Valve For Heater (N63)

Notes

WARNING: Scalding hazard! Work on the cooling system may only be carried out when it has cooled down.

NOTE: Clamp off coolant hoses on water valve.

Recycling

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 LEFT SUSPENSION CROSS-BRACE

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

Release hose clips (1) with special tool 17 2 050 and remove 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.

Heater With Operation
Fig. 111: Identifying Water Valve, Plug Connection And Hose Clips

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

Heater With Operation
Fig. 112: Identifying Wheel Arch Body Holders, Rubber Mount And Guide Lug

After installation

  • Fill and vent cooling system and check for leaks.

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