11 31 005 Checking camshaft timing (230i and 230i xDrive coupe/convertible)
Special tools required:
- 11 6 480
- 2 365 488
- 2 288 380
- 2 358 122
Adherence to NOTES ON CHECKING AND ADJUSTING TIMING is mandatory!
Necessary preliminary tasks:
- Refer to REMOVING CYLINDER HEAD COVER .
- Refer to REMOVING SPARK PLUGS .
- Refer to REMOVING FRONT UNDERBODY PROTECTION .
- Refer to REMOVING ACOUSTIC COVER AT FRONT .
Additionally for vehicles with automatic transmission:
- Refer to REMOVING STARTER MOTOR .
Release cover (1) from the vibration damper with a screwdriver.
Crank engine with special tool 11 6 480 to TDC firing position of cylinder no. 1.
Vehicles with automatic transmission:
Position special tool 2 365 488 and fasten with bolts.
Use special tool 2 288 380 to block the crankshaft in the TDC firing position Cylinder 1
Vehicles with manual gearbox:
Remove protective cap (1) on oil sump.
Crank engine at central bolt with special tool 11 6 480
Use special tool 2 288 380 to block the crankshaft in the TDC firing position Cylinder 1
NOTES FOR CHECKING AND ADJUSTING THE TIMING in vehicles with manual gearbox absolutely must be followed!
The markings (1) on the intake and exhaust camshafts can be read from above.
The middle one of the three flat sections (1) on the intake and exhaust camshafts must point upwards.
The cam on the exhaust camshaft (A) on the first cylinder points obliquely inwards to the right.
The cam on the intake camshaft (E) on the first cylinder points obliquely to the left.
- Basic carrier
- Basic carrier screws on cylinder head
- Gauge to fix exhaust camshaft
- Gauge to fix intake camshaft
- Gauge screws on basic carrier
Secure basic carrier (1) by screws (2) on cylinder head.
Position gauge (3) with recess on mounting flats of exhaust camshaft.
Secure basic carrier (3) by screws (5) on basic carrier.
Position gauge (4) with recess on mounting flats of intake camshaft.
Secure gauge (4) by screws (5) on basic carrier.
If necessary, adjust valve timing.
Required follow-up work:
- Remove all special tools
- Refer to INSTALLING SPARK PLUGS .
- Refer to INSTALLING CYLINDER HEAD COVER .
- Refer to INSTALLING FRONT UNDERBODY PROTECTION .
- Refer to INSTALLING ACOUSTIC COVER AT FRONT .
Additionally for vehicles with automatic transmission:
- Refer to INSTALLING STARTER MOTOR .