11 31 015 Replacing right camshaft (M62 VANOS from 9/98): Notes
Special tools required:
- 11 2 300
- 11 2 441
- 11 2 443
- 11 2 444
- 11 2 445
- 11 5 180
(if necessary inlet or exhaust side)
Cylinder bank 1 to 4
Unscrew and remove splash guard.
Remove both cylinder head covers. See 11 12 004 Removing and installing/sealing both cylinder head covers (M62)
Remove all spark plugs. See 12 12 011 REPLACING ALL SPARK PLUGS (M60, M62)
Removal
Removal of camshafts is described separately from installation.
Remove chain tensioning piston.
Remove timing case covers at top left and top right.
Remove right camshaft adjustment unit.
Remove distributor on right camshaft adjustment unit.
E38/E39
Pull special tool 11 2 300 back until flywheel is no longer secured in position.
E53 (X5)
Pull special tool 11 5 180 back until flywheel is no longer secured in position.
Lift timing chain and hold under tension.
Crank engine against direction of rotation at central bolt into 45° before TDC position.
Remove special tools 11 2 444 / 11 2 443 / 11 2 441 / 11 2 445.
If necessary, machine open-end wrench accordingly.
Rotate exhaust camshaft at hexagon head until exhaust cam on cylinder 2 is facing upwards.
Rotate inlet camshaft at hexagon head until inlet cam on cylinder 1 is facing upwards.
Release bearing caps of exhaust and inlet camshafts on cylinder bank 1 to 4 in 1/2 turn increments uniformly from outside to inside.
Remove bearing covers on cylinder bank 1 to 4 and place to one side in order.
Lift out camshafts.