Tightening Specifications

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-- Tighten the bolts in the steps shown in the sequence:

Fig 1: Tightening Sequence For Cylinder Head

Courtesy of AUDI OF AMERICA, LLC

Step	Bolts	Tightening specification/additional turn
1.	-1 through 10-	Install by hand all the way
2.	-1 through 10-	"Without collar" 40 Nm "with collar" 50 Nm, difference. Refer to OVERVIEW - CYLINDER HEAD .
3.	-1 through 10-	90° additional turn
4.	-1 through 10-	90° additional turn
5.	-arrows-	8 Nm
6.	-arrows-	90° additional turn

Fig 2: Measuring Cylinder Head Distortion

Courtesy of AUDI OF AMERICA, LLC

-- Check the cylinder head in several places for distortion using a straight edge and a feeler gauge.

Maximum permissible distortion: 0.05 mm.

Fig 3: Oil Separator Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC