Final tightening specifications 1)
Intake camshaft adjuster 1)
Initial tightening specifications
Final tightening specifications
Camshaft adjustment valve
Cylinder head plug
Chain tensioner 1)
Coolant and fuel lines 1) 4)
Banjo bolts

Drain plug for cylinder head
Drive chain sprocket thrust washer to mounting bracket
for drive sprocket
Power take-off drive chain sprocket
Engine lifting eye
Guide rail 1) 3)
Guide rail 1) 2)
Idler sprocket mounting bracket 1)
Left camshaft timing chain tensioner 1)
Left camshaft timing chain drive sprocket
Locking bolt

Nm
60
80 plus an
additional 90°
(¼ turn)
60
80 plus an
additional 90°
(¼ turn)
2.4
45
5 plus an
additional 90°
(¼ turn)
8 plus an
additional 90°
(¼ turn)
7 plus an
additional 90°
(¼ turn)
45
22
64
22
17 plus an
additional 90°
(¼ turn)
5 plus an
additional 90°
(¼ turn)
5 plus an
additional 90°
(¼ turn)
5 plus an
additional 90°
(¼ turn)
22
45

Audi R8/Spyder Quick Reference Specification Book • September 2013

57

Engine –
5.2L CTPA, CTYA

Cylinder Head, Valvetrain – 5.2L CTPA,
CTYA

Fastener Tightening Specifications (cont’d)
Component
Drive sprocket mounting bracket 1)
Oil drain plug
Drive sprocket pivot pin
Idler sprocket pivot pin
Right camshaft timing chain tensioner 1)

1)
2)

3)

4)

Nm
5 plus an
additional 90°
(¼ turn)
12
42
42
5 plus an
additional 90°
(¼ turn)

Replace fastener(s).
For bolt tightening clarification, refer to ElsaWeb, Power Take-Off Drive Chain
Overview, item 2.
For bolt tightening clarification, refer to ElsaWeb, Timing Mechanism Drive Chain
Overview, items 1 and 8.
For bolt tightening clarification, refer to ElsaWeb, Cylinder Head Overview, items 11
and 15.

Compression Checking Specifications
Compression pressure
New
Wear limit
Maximum difference between cylinders

58

Bar pressure
10.0 to 14.0
9.0
3.0

Audi R8/Spyder Quick Reference Specification Book • September 2013

Dimension
Diameter a
mm
Diameter b
mm
c
mm
α
∠°

Intake valve
33.85 ± 0.10
5.965 ± 0.005
103.97 ± 0.20
45

Engine –
5.2L CTPA, CTYA

Valve Dimensions

Exhaust valve
28.0 ± 0.1
5.955 ± 0.007
101.87 ± 0.20
45

NOTE: Intake and exhaust valves must not be
refaced by grinding. Only lapping is permitted.

Audi R8/Spyder Quick Reference Specification Book • September 2013

59

Left Timing Chain Cover Tightening Specifications

Step
1

Component
Tighten bolts 1 through 8 in sequence

Nm
5

2

Tighten bolts 1 through 8 in sequence

9

60

Audi R8/Spyder Quick Reference Specification Book • September 2013

Step

Component

Nm

1

Tighten bolts 1 through 8 in sequence

5

2

Tighten bolts 1 through 8 in sequence

9

Audi R8/Spyder Quick Reference Specification Book • September 2013

61

Engine –
5.2L CTPA, CTYA

Right Timing Chain Cover Tightening Specifications

Lower Timing Chain Cover Tightening Specifications

Step

Nm

Tighten the bolts (Æ) 1)

5

2

8

3

Tighten the bolts 1 through 11 in a diagonal
sequence 1)
Tighten bolts (Æ)

4

Tighten bolts 7 and 8 in a diagonal sequence

5

Tighten bolts 1 through 6 and 9 through 11 in a
diagonal sequence
Tighten bolts (Æ)

6
1)

Component

1

11
22
an additional
90° (¼ turn)
an additional
90° (¼ turn)

Replace fastener(s).

62

Audi R8/Spyder Quick Reference Specification Book • September 2013

Step
1

Component

Nm

Tighten bolts 1 through 6 in a diagonal
sequence

22

Audi R8/Spyder Quick Reference Specification Book • September 2013

Engine –
5.2L CTPA, CTYA

Spur Gear Unit Tightening Specification

63

Cylinder Head Tightening Specifications

NOTE: Both cylinder heads are identical in tightening.
Step
1

1)

Component
Tighten bolts 1 through 12 in sequence 1)

Nm
Hand-tighten

2

Tighten bolts 1 through 12 in sequence

30

3

Tighten bolts 1 through 12 in sequence

60

4

Tighten bolts 1 through 12 in sequence

5

Tighten bolts 1 through 12 in sequence

6

Tighten bolts (Æ) 1)

an additional
90° (¼ turn)
an additional
90° (¼ turn)
11

7

Tighten bolts (Æ)

an additional
90° (¼ turn)

Replace fastener(s).

64

Audi R8/Spyder Quick Reference Specification Book • September 2013

Engine –
5.2L CTPA, CTYA

Camshaft Guide Frame Tightening Specifications

NOTE: The left cylinder head camshaft guide frame is shown.
The right cylinder head camshaft guide frame is identical.
Step

1)
2)

Component

1

Tighten bolts 1 through 28 in sequence

2
3

Tighten bolts 1 through 28 in sequence
Tighten bolts 1 through 28 in sequence

Nm
1)

Hand-tighten 2)
8
an additional
90° (¼ turn)

Replace fastener(s).
The guide frame must be in contact with the entire contact surface of the
cylinder head.

Audi R8/Spyder Quick Reference Specification Book • September 2013

65

Left Cylinder Head Cover Tightening Specification

Step
1

Component
Tighten bolts 1 through 16 in sequence

Nm
9

Right Cylinder Head Cover Tightening Specification

Step
1

66

Component
Tighten bolts 1 through 16 in sequence

Nm
9

Audi R8/Spyder Quick Reference Specification Book • September 2013

Fastener Tightening Specifications
Component
Electrical connector bracket
Oil pump bracket 1)
Coolant drain plug
Coolant temperature sensor
Crankcase housing ventilation hose
Drain plug for oil filter housing
Drain plug for suction module
Engine coolant temperature sensor
Fuel rail from the oil tank to the engine
Heat shield
Hose/line assembly drain plug
Hose/line assembly from the oil pump
Hose/line assembly to the oil tank
Hose for crankcase ventilation
Left engine oil cooler 3)
Oil check valve
Left engine oil cooler drain plug
Oil drain plug
Oil filter housing 2)

Locking bolt
Oil filter housing cap
Oil level thermal sensor
Oil pump oil line-to-thermostat
Oil pressure switch
Oil tank
Oil temperature sensor 2
Oil return restrictor
Left engine oil cooler spacer bolt
Spacer piece for oil tank (Transmission 086)
Suction module plug
1)
2)

3)

Nm
9
6 plus an
additional 45°
(⅛ turn)
25
2
9
20
25
9
8
8
10
9
8
9
8
9
6
22
12
9
22
50
50
25
8
9
20
8
2
9
9
8
25

Replace fastener(s).
For bolt tightening clarification, refer to ElsaWeb, Oil Filter Housing Overview, items
2, 17 and 26.
For bolt tightening clarification, refer to ElsaWeb, Left Engine Oil Cooler Assembly
Overview, items 5, 6, 20 and 23.

Audi R8/Spyder Quick Reference Specification Book • September 2013

67

Engine –
5.2L CTPA, CTYA

Engine Lubrication – 5.2L CTPA, CTYA

Oil Pump Tightening Specifications

Step
1
2

68

Component
Tighten bolts 1 through 11 in sequence
Tighten bolts 1 through 11 in sequence

Nm
8
10

Audi R8/Spyder Quick Reference Specification Book • September 2013

Step
1

Component
Tighten the mounting plate bolts (Æ) in steps
starting from the inside and working toward the
outside

Engine –
5.2L CTPA, CTYA

Mounting Plate Tightening Specification

Nm
9

Audi R8/Spyder Quick Reference Specification Book • September 2013

69

Upper Engine Oil Cooler Tightening Specifications

Step
1
2

70

Component
Tighten bolts (Æ) in a diagonal sequence
Tighten bolts (Æ) in a diagonal sequence

Nm
3
9

Audi R8/Spyder Quick Reference Specification Book • September 2013

Fastener Tightening Specifications
Component
Air duct
Bleeder screw
Coolant pump housing bracket 1)
Radiator bracket
Center radiator bracket
Coolant thermostat with housing drain plug
Coolant fan nut
Coolant pipes in the center of the vehicle 2)
Coolant thermostat with housing
Condenser
Connecting piece
Fan shroud to side radiator bolt
Front air guide
Coolant pump housing 3)
Large left rear coolant pipe
Left coolant supply pipe
Left radiator bracket
Rear air guide
Rear coolant return pipe
Right coolant supply pipe
Right radiator bracket
Right Rear Coolant Pipe to the ATF Cooler nut
Right rear coolant pipe
Rubber bushing to transmission coolant pump
1)
2)

3)

4)

Nm
2.5
0.5
6 plus an
additional 45°
(⅛ turn)
20
8
5
6
8
20
9
5
8
8
2.5
9
10