BMW X5: Water Pump With Drive
REMOVING AND INSTALLING/REPLACING WATER PUMP (N62/N62TU)
WARNING: Only carry out work on the cooling system after the engine has cooled down (risk of scalding ).
Follow instructions for working on cooling system.
Necessary preliminary tasks:
- Drain and dispose of coolant from radiator.
- Remove fan cowl.
- Remove electric fan.
- Remove alternator drive belt.
Unlock and detach plug connections (1).
Release screw and remove vacuum line holder.
Unlock and detach all coolant hoses on water pump.
Release screws and remove belt pulley (2).
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Fig. 715: Locating Plug Connections
Remove vibration damper.
Release screws and remove water pump (1).
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Fig. 716: Locating Water Pump Screw
Installation:
Check adapter sleeve (1) for correct seating and damage; replace if necessary.
Clean sealing faces (2).
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Fig. 717: Identifying Adapter Sleeve And Sealing Faces
Installation:
Clean sealing surfaces.
Replace sealing rings (1 and 2).
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Fig. 718: Identifying Sealing Rings And Sealing Surfaces
Installation:
Replace both coolant pipes (1) and coat sealing surfaces with anti-friction rubber coating.
Thin coolant pipe (1) only with water-cooled alternator.
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Fig. 719: Identifying Coolant Pipe
NOTE: Remove coolant thermostat and coolant sensor of faulty water pump.
Check coolant thermostat and coolant sensor for damage and replace if necessary.
Install coolant thermostat and coolant sensor in new water pump.
Assemble engine.
Vent cooling system and check for leaks.
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Fan
REMOVING AND INSTALLING OR REPLACING FAN CLUTCH (N62)
Special tools required:
11 5 040
11 5 050
CAUTION: Left-hand threads.
Using special tool 11 5 050 brace against pulley and unfasten cap nut fr
Thermostat And Connecting
REMOVING AND INSTALLING/REPLACING COOLANT THERMOSTAT (N62)
WARNING: Danger of scalding!
Only perform these tasks on an engine that has cooled down.
Recycling:
Catch and dispose of drained coolant.
Ob
Intake Manifold
REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N62)
Remove acoustic cover. To remove, unfasten screws. Raise acoustic cover and
remove towards front.
Remove design cover, if equipped.
Remove center o
SEE MORE:
Limp-Home Mode
If a fault is diagnosed in the system, such as e.g. failure of the
high-pressure sensor, the fuel-supply control
valve is de-energized; the fuel then flows via a so-called bypass into the rail.
In the event of HPI limp-home mode, turbocharging is deactivated by an opening
of the wastegate valves.
Ignition System Diagnosis
The ignition system on modern BMW engines consist of one ignition coil per
cylinder. This arrangement is
known as RZV, or Direct Stationary Ignition. The ignition coil receives fused
power usually from the DME
main relay or IVM (N62).
The ignition coil primary circuit is controlled (triggered) by
