BMW 7 Series: Removing And Installing Radiator (N63, N74)
WARNING: Risk of scalding!
Only perform this repair work after engine has cooled down.
IMPORTANT: Wear safety goggles and protective gloves.
Necessary preliminary tasks
- Remove FAN COWL.
Drain COOLANT
- Draw off A/C SYSTEM.
- Unlock and detach coolant hoses on radiator.
Release screws (1).
Tightening torque 17 10 6AZ.
Detach A/C lines (2) and place to one side.
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Fig. 33: Identifying A/C Line With Mounting Screws
Installation note:
Replace sealing rings.
Release screws (1) on left and right from cover (3).
Tightening torque 17 10 1AZ.
Release screws (2) behind sealing lip.
Tightening torque 17 10 1AZ.
Lift out cover (3).

Fig. 34: Identifying Radiator Cover With Mounting Screws
Remove radiator (1) towards top.
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Fig. 35: Removing Radiator Towards Top
Reassemble the vehicle.
Fill A/C SYSTEM.
Check COOLING SYSTEM for leaks.
REMOVING AND INSTALLING/RENEWING COOLANT EXPANSION TANK (N63)
Necessary preliminary work
- Drain COOLANT.
- Remove left TRAILING LINK.
- Remove left intake duct.
- Release EXPANSION TANK for hydraulic steering or dynamic drive and place
to one side.
Release screw (1).
Tightening torque 17 10 2AZ.
Release and disconnect coolant hoses (2).
Raise expansion tank (3)

Fig. 36: Identifying Coolant Expansion Tank With Hoses And Mounting Screws
Unlock connector (1) on coolant level switch and disconnect.
Remove expansion tank (2).
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Fig. 37: Identifying Coolant Expansion Tank With Coolant Level Switch
Connector
Assemble engine.
Top up COOLANT.
Check cooling system for LEAK TIGHTNESS.
READ NEXT:
WARNING: Danger of scalding!
Only perform this work after engine has cooled down.
IMPORTANT: When working on the oil and cooling circuit, protect the
alternator against
dirt/contaminants.
Cover alter
Necessary preliminary tasks
Remove front right WHEEL ARCH TRIM.
WARNING: Danger of scalding!
Only perform this work after engine has cooled down.
IMPORTANT: Wear protective goggles and gloves.
IMPO
WARNING: Risk of scalding! Only perform this repair work after
engine has cooled down.
IMPORTANT: Wear protective gloves and safety goggles.
IMPORTANT: Adhere to conditions of absolute cleanliness wh
SEE MORE:
Notes
Set pressure regulator on special tool 16 1 171 fully in "-" direction.
Connect special tool 16 1 171 using compressed air line (1) to workshop
compressed air system (8... 10 bar).
Connect pressure sensor (2) from Diagnosis and Information System.
Connect special tool 16 1 172 to quick-rele
BMW ASSIST Menu
The "Vehicle Info" menu contains all the information regarding the condition,
service intervals, the on-board
computer and the journey computer of the vehicle.
In addition, this menu contains for the first time a Quick Guide and the
electronic Owner's Handbook for the
vehicle.
NOT