11 36 047 Removing and installing/replacing inlet and exhaust adjustment units on left side (N63)
Special tools required
- 00 9 120
- 00 9 250
- 11 8 570
- 11 9 190
- 11 9 890
- 11 9 891
- 11 9 892
- 11 9 893
- 11 9 894
- 11 9 900
See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .
See ENGINE - SPECIAL TOOLS (N54, N63) .
| IMPORTANT | When the engine is shut down, the inlet and exhaust adjustment unit is normally locked in its initial position. The situation may arise in some individual cases where this initial position is not reached and the camshaft can continue to be rotated in the adjustment range of the adjustment unit. Where central bolts are not greased at the bolt contact points up to engine number 20024295 , the VANOS gear must be replaced for safety reasons. The central bolts is greased from engine number 20024296 . |
(cylinder bank 1 to 4)
Necessary preliminary tasks
- Read fault memory and make a documentary record
- Remove left cylinder head cover
- Remove left «timing case cover»(ref-349795-S26108192622009121000000)
- Check «timing»(ref-349795-S32155175162009121000000) .
To release central bolts, use special tool 11 9 890 or grip at hexagon head of camshaft.
Scheme 56
| IMPORTANT | If special tool 11 9 890 cannot be fitted, it is necessary when releasing the central bolt to grip the hexagon head of the respective camshafts. |
Release central bolts (1 and 2) of inlet and exhaust adjustment units.
Installation
Replace central bolts after releasing.
Scheme 57
| IMPORTANT | Check whether head of central bolt (1) is greased (see arrow). If no grease can be seen on the bolt head of central bolt (1), the VANOS gear must be replaced for safety reasons. |
Installation
Coat contact face of central bolt (1) with copper paste.
Release hexagon socket screw.
Release special tool 11 9 900 at knurled screws and remove.
Release screws (1).
Remove upper tensioning rail (2).
Note. Shown without special tools for purposes of clarity.
Scheme 58
Remove central bolt (2) of inlet adjustment unit.
Installation
Replace central bolts after releasing.
Detach inlet adjustment unit (1) in direction of arrow from inlet camshaft.
Scheme 59
Feed out inlet adjustment unit (2) from timing chain (1).
Lift out inlet adjustment unit (2).
Scheme 60
Remove central bolt (1) of exhaust adjustment unit.
Installation
Replace central bolts after releasing.
Detach exhaust adjustment unit (1) in direction of arrow from exhaust camshaft.
Scheme 61
Feed out exhaust adjustment unit (2) from timing chain (1).
Lift out exhaust adjustment unit (2).
Scheme 62
| IMPORTANT | Danger of mix-up: Inlet and exhaust adjustment units are different. Mixing up the inlet and exhaust adjustment units will cause damage to the engine. Inlet adjustment unit (1) is marked with EIN Exhaust adjustment unit (2) is marked with AUS |
Scheme 63
Installation
Coat contact face of central bolt (1) with copper paste.
Note. Position of adjustment units in relation to timing chain can be freely selected. Feed adjustment unit into timing chain and position on camshafts. Insert central bolts (1 and 2) on adjustment units without gaps.
Release central bolts (1 and 2) by 90° .
Fit sliding rail (2) and secure with bolts (1).
Tightening torque: 11 31 4AZ, see 11 31 CAMSHAFT
Scheme 64
Get special tool kit 11 9 890 ready for securing camshafts.
Fit special tool 11 9 893 on exhaust camshaft.
Place special tool 11 9 893 on inlet camshaft.
Installation
Align exhaust and inlet camshafts in such a way that special tools 11 9 893 rest without a gap on the cylinder head.
Screw special tool 11 9 894 into cylinder head.
Press down special tool 11 9 892 with special tool 11 9 891.
Screw in special tool 11 9 900.
Pretension timing chain with special tool 11 9 900.
Preload hexagon socket screw with special tool 00 9 250 to 0.6 Nm .
Check special tools 11 9 190 for correct seating.
Tighten down central bolts (1 and 2) of adjustment units with special tool 00 9 120.
Tightening torque 11 36 1AZ, see 11 36 VARIABLE CAMSHAFT CONTROL
Remove special tools 11 9 190 and 11 8 570.
Crank engine at central bolt twice in direction of rotation until engine returns to 150° before cylinder no. 1 firing TDC position .
Mount special tool 11 8 570 on vibration damper with a bolt.
Secure special tool 11 9 190 at 150° before cylinder no. 1 firing TDC position .
Check timing again.
Remove all special tools.
11 36 048 Removing and installing/replacing inlet and exhaust adjustment units on right side (N63)
Special tools required
- 00 9 120
- 00 9 250
- 11 8 570
- 11 9 190
- 11 9 890
- 11 9 891
- 11 9 892
- 11 9 893
- 11 9 894
- 11 9 900
See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .
See ENGINE - SPECIAL TOOLS (N54, N63) .
| IMPORTANT | When the engine is shut down, the inlet and exhaust adjustment unit is normally locked in its initial position. The situation may arise in some individual cases where this initial position is not reached and the camshaft can continue to be rotated in the adjustment range of the adjustment unit. Where central bolts are not greased at the bolt contact points up to engine number 20024295 , the VANOS gear must be replaced for safety reasons. The central bolts is greased from engine number 20024296 . |
(cylinder bank 1 to 4)
Necessary preliminary tasks
- Read fault memory and make a documentary record
- Remove «right cylinder head cover»(ref-349795-S30084915142009121000000)
- Remove right «timing case cover»(ref-349795-S01204482652009121000000)
- Check «timing»(ref-349795-S32155175162009121000000) .
To release central bolts, use special tool 11 9 890 or grip at hexagon head of camshaft.
| IMPORTANT | If special tool 11 9 890 cannot be fitted, it is necessary when releasing the central bolt to grip the hexagon head of the respective camshafts. |
Release central bolts (1 and 2) of inlet and exhaust adjustment units.
Installation
Replace central bolts after releasing.
| IMPORTANT | Check whether head of central bolt (1) is greased (see arrow). If no grease can be seen on the bolt head of central bolt (1), the VANOS gear must be replaced for safety reasons. |
Installation
Coat contact face of central bolt (1) with copper paste.
Release hexagon socket screw.
Release special tool 11 9 900 at knurled screws and remove.
Release screws (1).
Remove upper tensioning rail (2).
Remove central bolt (1) of exhaust adjustment unit.
Installation
Replace central bolts after releasing.
Scheme 65
Detach exhaust adjustment unit (1) in direction of arrow from exhaust camshaft.
Scheme 66
Feed out exhaust adjustment unit (2) from timing chain (1).
Lift out exhaust adjustment unit (2).
Scheme 67
Remove central bolt (1) of inlet adjustment unit.
Installation
Replace central bolts after releasing.
Scheme 68
Detach inlet adjustment unit (1) in direction of arrow from inlet camshaft.
Scheme 69
Feed out inlet adjustment unit (2) from timing chain (1).
Lift out inlet adjustment unit (2).
| IMPORTANT | Danger of mix-up: Inlet and exhaust adjustment units are different. Mixing up the inlet and exhaust adjustment units will cause damage to the engine. Inlet adjustment unit (1) is marked with EIN Exhaust adjustment unit (2) is marked with AUS |
Installation
Coat contact face of central bolt (1) with copper paste.
Note. Position of adjustment units in relation to timing chain can be freely selected. Feed adjustment unit into timing chain and position on camshafts. Insert central bolts (1 and 2) on adjustment units without gaps.
Release central bolts (1 and 2) by 90° .
Fit sliding rail (2) and secure with bolts (1).
Tightening torque: 11 31 4AZ, see 11 31 CAMSHAFT
Get special tool kit 11 9 890 ready for securing camshafts.
Fit special tool 11 9 893 on exhaust camshaft.
Place special tool 11 9 893 on inlet camshaft.
Installation
Align exhaust and inlet camshafts in such a way that special tools 11 9 893 rest without a gap on the cylinder head.
Screw special tool 11 9 894 into cylinder head.
Press down special tool 11 9 892 with special tool 11 9 891.
Screw in special tool 11 9 900.
Pretension timing chain with special tool 11 9 900.
Preload hexagon socket screw with special tool 00 9 250 to 0.6 Nm .
Check special tools 11 9 190 for correct seating.
Tighten down central bolts (1 and 2) of adjustment units with special tool 00 9 120.
Tightening torque 11 36 1AZ, see 11 36 VARIABLE CAMSHAFT CONTROL
Remove special tools 11 9 190 and 11 8 570.
Crank engine at central bolt twice in direction of rotation until engine returns to 150° before cylinder no. 1 firing TDC position .
Mount special tool 11 8 570 on vibration damper with a bolt.
Secure special tool 11 9 190 at 150° before cylinder no. 1 firing TDC position .
Check timing again.
Remove all special tools.
Calibration for vacuum pressure measurement
Seal shutoff tap (2) in direction of arrow.
Release lock nut on controller (1).
Carry out pressure adjustment in accordance with BMW diagnosis instruction.
Secure controller (1) hand-tight against turning.
Open shutoff tap (2) again.
Scheme 70
Scheme 71
- Connection (VAC) to vacuum reservoir.
- Connection (OUT) with ring to exhaust turbocharger.