Tightening specifications for cylinder head bolts - AR01.30-P-5800-07VA
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.
MODIFICATION NOTES
| 4.10.06 | Cylinder head bolt to timing case | Engine 272 | *BA01.30-P-1003-01O |
CYLINDER HEAD
| Number | Designation | Engine 272 | |||
|---|---|---|---|---|---|
| BA01.30-P-1003-01O | Cylinder head bolt to timing case | M8 | Stage 1 | Nm | 15 |
| Stage 2 | ∠ ° | 90 | |||
| BA01.30-P-1016-01O | Bolt, cylinder head to crankcase | M11 | Stage 1 | Nm | 20 |
| Stage 2 | Nm | 40 | |||
| Stage 3 | ∠ ° | 90 | |||
| Stage 4 | ∠ ° | 90 | |||
Tightening of the cylinder head bolts must take place according to the numerical sequence given in the figure. Loosening of bolts takes place in reverse order.
- Tighten cylinder head bolts (1-8) to stage 1.
- Tighten cylinder head bolts (1-8) to stage 2.
- Tighten cylinder head bolts (1-8) to stage 2 (follow-up tightening).
- Tighten cylinder head bolts (1-8) to stage 3.
- Tighten cylinder head bolts (1-8) to stage 4.
- Tighten bolts (9).