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Home >> Audi >> 2007 >> RS4 Quattro Sedan (8EC) V8-4.2L (BNS) >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications
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System Specifications































Cylinder head

Use new cylinder head bolts and tighten by hand








Max. permissible distortion 0.1 mm

Intake manifold





1st step 5 Nm
2nd step 9 Nm
3rd step 9 Nm

Camshaft guild frame

Tightening Specifications

Tighten the guide frame bolts by hand evenly in the sequence 1 through 24





Fasten guide frame bolts in sequence 24 to 1 until they stop





Camshaft sprocket

Initial tightening 60 Nm
Final tightening 80 Nm plus 90° turn

Exhaust manifold








- Pre-tighten the nuts in the sequence - 1 to 6 - to 20 Nm.
- Pre-tighten the nuts in the sequence - 1 to 6 - to 30 Nm.
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