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11 31 573 Adjusting Camshaft Timing On Left Side (N63)

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Special Tools Required: 

IMPORTANT: Release Central Bolts On Adjuster Only with Special Tool 11 9 890 .
Risk of Damage  To Timing Drive.
If Special Tool 11 9 890 Can Not Be Fitted, It Is Necessary When Releasing The Central Bolt To Grip The Hexagon Head of The Respective Camshaft.

(Cylinder Bank 5 To 8) 

Necessary Preliminary Tasks: 

Get Set of Special Tools 11 9 890 Ready for Securing Camshafts.

NOTE: Special Tool 11 9 891 Knurled Screw.
Special Tool 11 9 892 Press-Down Bar.
Special Tool 11 9 893 Gap Gauge for Intake and Exhaust Camshafts.
Special Tool 11 9 894 Spacer.
Fig 1: Identifying Set of Special Tools 11 9 890
G09874110Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: If Special Tool 11 9 890 Can Not Be Fitted, It Is Necessary When Releasing The Central Bolt To Grip The Hexagon Head of The Respective Camshaft.

Release Central Bolts (1 and 2) of Intake and Exhaust Camshaft Adjusters.

Installation Note: 

Replace Central Bolts After Releasing.

Fig 2: Identifying Central Bolts of Intake and Exhaust Camshaft Adjusters
G09874111Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Check Whether Head of Central Bolt (1) Is Greased (See Arrow In Illustration).
If No Grease Can Be Seen On The Bolt Head of Central Bolt (1), The ADJUSTER  Must Be Replaced for Safety Reasons.

Installation Note: 

Coat Contact Surface of New Central Bolt (1) with Copper Paste.

Fig 3: Checking Central Bolt Head To See If Required Grease Is Present
G09874112Courtesy of BMW OF NORTH AMERICA, INC.

Position Special Tool 11 9 893 On Intake Camshaft and Exhaust Camshaft.

The Special Tool 11 9 893 Must Rest Without A Gap  On Cylinder Head; If Necessary, Adjust Camshaft At Hexagon Heads.

Screw Special Tool 11 9 894 Into Cylinder Head.

Fig 4: Positioning/Installing Special Tools On Cylinder Head
G09874113Courtesy of BMW OF NORTH AMERICA, INC.

Position Special Tool 11 9 892 On Special Tool 11 9 893 .

Both Special Tools 11 9 891 Are Secured with Special Tool 11 9 893 .

NOTE: Tighten Down Special Tool 11 9 891 By Hand.
Fig 5: Positioning Special Tool 11 9 892 On Special Tool 11 9 893 and Securing with Special Tool 11 9 891
G09874114Courtesy of BMW OF NORTH AMERICA, INC.

Secure Central Bolt (1) of Intake Camshaft Adjuster with Special Tool 00 9 120 .

Secure Central Bolt (2) of Exhaust Camshaft Adjuster with Special Tool 00 9 120 .

Tightening torque: 11 36 1AZ .

Fig 6: Identifying Central Bolts of Intake and Exhaust Camshaft Adjusters
G09874115Courtesy of BMW OF NORTH AMERICA, INC.

Remove Special Tools 11 9 190 and 11 8 570 .

Crank Engine At Central Bolt Twice In Direction of Engine Rotation Until Engine Returns To 150° Before Cylinder No. 1 Firing TDC Position. 

Secure Vibration Damper At 150° Before Cylinder No. 1 Firing TDC Position 1  Using Special Tool 11 9 190 .

Fig 7: Securing Vibration Damper Using Special Tool 11 9 190
G09874116Courtesy of BMW OF NORTH AMERICA, INC.

Place Special Tool 11 9 893 On The Exhaust Camshaft and Check Timing Adjustment.

NOTE: Timing Is Correctly Adjusted When Special Tool 11 9 893 Rests Without A Gap On Cylinder Head.
Fig 8: Placing Special Tool 11 9 893 On Exhaust Camshaft and Checking Timing Adjustment
G09874117Courtesy of BMW OF NORTH AMERICA, INC.

Fit Special Tool 11 9 893 On Intake Camshaft and Check Timing Adjustment.

NOTE: Timing Is Correctly Adjusted When Special Tool 11 9 893 Rests Without A Gap On Cylinder Head.
Fig 9: Fitting Special Tool 11 9 893 On Intake Camshaft and Checking Timing Adjustment
G09874118Courtesy of BMW OF NORTH AMERICA, INC.

Remove All Special Tools.

Assemble Engine.