Home/Audi/S5/Audi S5 I facelift (2011-2016)/Repair manual/Mechanical/4.2L - Cylinder Head, Valvetrain - Engine Code(s): Caua (Co…
Contents Wiring diagrams Section: Mechanical All sections

4.2L - Cylinder Head, Valvetrain - Engine Code(s): Caua (Coupe): Specifications Audi S5 I facelift

Mechanical ~224 words

FASTENER TIGHTENING SPECIFICATIONS

ComponentsFastener SizeNm
Camshaft Adjuster for Exhaust Camshaft 180 + 90°
Camshaft Adjuster for Intake Camshaft 180 + 90°
Camshaft Adjustment Valve 22.4
Chain Tensioner 15 + 90°
Chain Tensioner with glide track9
Drain Plug35
Driveshaft for A/C Compressor60
Exhaust Camshaft Adjustment Valve 22.4
Guide Rail 2
110 + 90°
22
Guide Rail 310 + 90°
Idler Sprocket Mounting Bracket9
Left Camshaft Timing Chain Tensioner 15 + 90°
Pivot Pin for Drive Sprocket for Left Timing Chain9
Pivot Pin for Drive sprocket for right timing chain42
Pivot Pin for Idler Sprocket42
Right Camshaft Timing Chain Tensioner 15 + 90°
1 Replace 2 For bolt tightening clarification, refer to TIMING MECHANISM DRIVE CHAIN OVERVIEW and items -1, 2 and 3- 3 For bolt tightening clarification, refer to TIMING MECHANISM DRIVE CHAIN OVERVIEW and items -6, 8 and 9

LEFT CYLINDER HEAD COVER, TIGHTENING SPECIFICATIONS AND SEQUENCE

Tighten the left cylinder head cover bolts to 9 Nm in sequence -1 to 15-.

RIGHT CYLINDER HEAD COVER, TIGHTENING SPECIFICATIONS AND SEQUENCE

Tighten the right cylinder head cover bolts to 9 Nm in sequence -1 to 16-.

CYLINDER HEAD, TIGHTENING SPECIFICATIONS AND SEQUENCE

Note. Replace bolts that are tightened to the specification.

Tighten the bolts in 7 steps in the sequence shown

StageBoltsTightening Specification/Additional Turn
1.1 through 10Install all the way in by hand.
2.1 through 1030 Nm
3.1 through 1060 Nm
4.1 through 10Tighten 90° further
5.1 through 10Tighten 90° further
6.ArrowsInstall using locking fluid, 8 Nm
7.ArrowsTighten 90° further

SPUR GEAR UNIT, TIGHTENING SPECIFICATIONS AND SEQUENCE

Tighten the bolts -1 to 6- in diagonal sequence to 22 Nm.

LEFT TIMING CHAIN COVER, TIGHTENING SPECIFICATIONS AND SEQUENCE

Tighten left timing chain cover bolts to 9 Nm in -1 to 8- sequence.

Note. The brackets -arrows A, B- are connected with the left timing chain cover.

RIGHT TIMING CHAIN COVER, TIGHTENING SPECIFICATIONS AND SEQUENCE

Tighten right timing chain cover bolts to 9 Nm in -1 to 8- sequence.

Note. The bracket -arrow- is connect with the right timing chain cover.

LOWER TIMING CHAIN COVER, TIGHTENING SPECIFICATIONS AND SEQUENCE

Note. Replace bolts that are tightened to the specification.

Tighten bolts in 6 stages as follows

StageBoltsTightening Specification/Additional Turn
1.ArrowsInstall using locking fluid, 5 Nm
2.1 through 128 Nm in a diagonal sequence
3.Arrows8 Nm
4.2, 7, 8, 922 Nm in a diagonal sequence
5.1, 3, 4, 5, 6, 10, 11, 12In a diagonal sequence, turn an additional 90°
6.ArrowsTighten 90° further

CAMSHAFT GUIDE FRAME, TIGHTENING SPECIFICATIONS AND SEQUENCE

Note. Replace bolts that are tightened to the specification.

Tighten the bolts in 3 steps in the sequence shown

StageBoltsTightening Specification/Additional Turn
1.1 to 24Install all the way in by hand. The guide frame must be in contact with the entire contact surface of the cylinder head.
2.1 to 248 Nm
3.1 to 24Tighten 90° further