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.
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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.
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Fig. 112: Identifying Wheel Arch Body Holders, Rubber Mount And Guide Lug
After installation
- Fill and vent cooling system and check for leaks.
READ NEXT:
Initializing Telestart Handheld Transmitter
NOTE: The Telestart hand-held transmitter must be initialized when:
Hand-held transmitter is replaced
Car Access System control unit is replaced
The auxiliary heating is switched on under an ambie
Removing And Installing Complete Independent Heater
WARNING: Risk of scalding!
Only perform the following repair work on an engine that has cooled down.
Follow Notes for Repair Work on Cooling System.
NOTE: Clamp off coolant hoses on independent heate
SEE MORE:
Checking Camshaft Timing On Left Side (N63)
Notes
IMPORTANT: The timing can only be checked with special tool 11 9 900.
The timing may be misinterpreted if it is checked without special tool 11 9 900.
Cylinders 5-8:
Necessary preliminary work
Remove left CYLINDER HEAD COVER
Remove FAN COWL with electric fan
Remove BELT PULLEY for air con
Operating Fluids
1.0 GENERAL INFORMATION
Brake fluid, (glycol-based) as used in BMW brake systems, must conform with
the following requirements:
High boiling point
Good low temperature resistance
Low compressibility
Corrosion inhibition for all metal parts inside of brake system
Compatibility with all rubber
