Lubrication – 6.3L CEJA
Fastener Tightening Specifications
Component
Ball Pin for Engine Cover
Cap for Oil Filter Element
Chain tensioner
Crankcase ventilation hose
Engine cover ball pin
Engine oil cooler
Oil dipstick guide tube 1)
Oil drain plug
Oil filler tube and crankcase ventilation
pressure control valve housing
Oil filter element cap
Oil level thermal sensor
Oil pipe banjo bolt
Oil pressure switch
Oil pump
Oil pump intake tube
Reduced oil pressure switch
1)

Fastener
size
M6
M8
-

Nm

-

8
25
8
20
8
8
9
4 plus an
additional 45°
(⅛ turn)
30
8

-

25
8
20
20
20
8
20

Replace fastener(s).

128 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Engine –
6.3L CEJA

Upper Oil Pan Tightening Specifications

Step
1

Component
Tighten bolts 1 through 36 in sequence

Nm
Hand-tighten

2

Tighten bolts 1 through 36 in sequence

8

3

Tighten bolts 1 through 8 in sequence

20

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 129

Oil Pan Tightening Specifications

Step
1
2
3

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

Nm
Hand-tighten
4
an additional
45° (⅛ turn)

130 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Cooling System – 6.3L CEJA
Component
After-run coolant pump
Coolant auxiliary cooler bracket
Coolant pump
Coolant temperature sensor 1)
Engine cover mounting pins
Fan rib
Fan wheel
Left rear coolant pipe
Lower left coolant pipe
Radiator
Ribbed belt pulley
Right coolant pipes 2)
Right front coolant pipe
Right rear coolant pipe
Right Coolant Pipe on the Right Side of the Transmission
3)

Thermostat housing 1)
Thermostat housing cover
Upper left coolant pipe
1)
2)

3)

Nm
9
9
10
4 plus an
additional 45°
(⅛ turn)
4.5
3.5
5
9
9
3.5
8
9
20
9
9
9
23
20
9
9

Replace fastener(s).
For bolt tightening clarification, refer to ElsaWeb, Coolant Pipes Overview, items 8
and 9.
For bolt tightening clarification, refer to ElsaWeb, Coolant Pipes Overview, items 10
through 11.

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 131

Engine –
6.3L CEJA

Fastener Tightening Specifications

Fuel Supply – 6.3L CEJA
Fastener Tightening Specifications
Component
Accelerator pedal module
Air filter housing
Bracket for fuel tank pressure sensor
Bracket to the fuel tank
Carrier plate
Evaporative Emission (EVAP) canister
Fuel filler neck nut
Fuel filler neck bolt
Fuel tank
Fuel tank leak detection control module, nut
Fuel pump control module to bracket nut
Heat shield for fuel tank
Locking flange cover to floor
Locking ring
Securing strap

Nm
8
4
4
23
23
20
2.5
23
23
1.6
1.6
23
1.5
120
23

Locking Flange Cover Tightening Specification

Step
1

Component
Tighten bolts (Æ) in a diagonal sequence

Nm
1.5

132 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Exhaust System, Emission Controls – 6.3L
CEJA

Securing strip nut 1) 2)
Suspended mount
1)
2)

3)

Nm
9
9
9
23
20
9
23
20
9
8
4 plus an
additional 45°
(⅛ turn)
8
23
23

Replace fastener(s).
Lubricate the thread with hot bolt paste. Refer to the Electronic Parts Catalog
(ETKA).
For bolt tightening clarification, refer to ElsaWeb, Secondary Air Injection System
Overview, items 1, 3, 5, 19, 21 and 23.

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 133

Engine –
6.3L CEJA

Fastener Tightening Specifications
Component
Air filter bracket
Air filter housing bracket
Bonded rubber bushing nut
Front clamping sleeve nut
Front muffler nut 1)
Heat shield
Rear clamping sleeve nut
Secondary Air Injection (AIR) pump motor bracket
Secondary Air Injection (AIR) system air filter housing
Secondary air pipe
Secondary air pipe 3)

Left Exhaust Manifold Tightening Specifications

Step

1)
2)

Component

Nm
Hand-tighten

1

Tighten nuts 1 through 3 in sequence 1) 2)

2

Tighten nuts 1 through 3 in sequence

15

3

Tighten nuts 1 through 3 in sequence

23

Replace fastener(s).
Lubricate the threads with hot bolt paste. For the correct hot bolt paste, refer to the
Electronic Parts Catalog (ETKA).

134 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Step

1)
2)

Component

Nm
Hand-tighten

1

Tighten nuts 1 through 3 in sequence 1) 2)

2

Tighten nuts 1 through 3 in sequence

15

3

Tighten nuts 1 through 3 in sequence

23

Replace fastener(s).
Lubricate the threads with hot bolt paste. For the correct hot bolt paste, refer to the
Electronic Parts Catalog (ETKA).

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 135

Engine –
6.3L CEJA

Right Exhaust Manifold Tightening Specifications

Multiport Fuel Injection – 6.3L CEJA
Technical Data
6.3L FSI engine
Engine idle speed
Fuel pressure before
high pressure pump
Fuel pressure after high
pressure pump

Cannot be adjusted, it is regulated by idle
stabilization.
6.0 to 7.0 bar pressure
15 to 135 bar pressure

Fastener Tightening Specifications
Component
Air filter upper section
Air guide
Air guide pipe
Clamp nut
Connecting piece
Fuel pressure sensor
Fuel rail 1)
High pressure pipe
High pressure pump
Housing
Intake manifold
Low fuel pressure sensor
Mass Air Flow (MAF)/Intake Air Temperature (IAT) sensor
Throttle valve control module 1)
Union nut-to-high pressure pump 2)
1)
2)

Nm
2.5
1.5
2.5
9
40
27
30 plus an
additional 90°
(¼ turn)
27
20
1.5
9
15
1.5
7
22
27

Replace fastener(s).
For bolt tightening clarification, refer to ElsaWeb, High Pressure Pump Overview,
items 1 and 3.

136 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Ignition System Tightening Specifications
Component
Camshaft Position (CMP) sensor
Electrical harness connector
Engine Speed (RPM) sensor 1)

Nm
9
5
4 plus an
additional 45°
(⅛ turn)
20

Knock Sensor (KS)
1)

Replace fastener(s).

Test data
Engine idle speed
Ignition timing
Ignition system
Spark
plugs

Names
Tightening
specifications
Ignition sequence

6.3L/4V engine
Cannot be adjusted, it is regulated by idle
stabilization.
Not adjustable; regulated by the Engine Control
Module (ECM).
Single coil ignition system with 12 ignition coils
(output stages integrated) that are connected
directly to spark plugs via the ignition cables.
Refer to the Electronic Parts Catalog
Maintenance Procedures Rep. Gr. 03
1-12-5-8-3-10-6-7-2-11-4-9

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 137

Engine –
6.3L CEJA

Technical Data

Automatic Transmission – 0BK
General, Technical Data
Transmission Identification

The transmission code letters are located on the type plate under
the transmission. The (Æ) indicates the location of the type plate.

138 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Transmission Type Plate

1 - Transmission serial number
2 - Parts list number
3 - Manufacturer transmission identification: 8HP-55
4 - Example of a transmission code: MNX

Automatic Trans. –
0BK

NOTE: The transmission code letters are also
included on the vehicle data labels.

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 139

Code Letters, Transmission Allocations,
Ratios and Equipment
Automatic transmission
0BK AWD
Transmission
Identification
MEE
NDE
codes
Torque converter
Identification
N140
N140
codes
Allocation
Type Audi A8 from MY Audi A8 from MY
2010
2010
Engine 4.0L TFSI - 309
4.0L TFSI - 309
kW
kW
Primary drive
32:33 = 0.970
32:33 = 0.970
Gear wheel (front axle)
31:29 = 1.069
31:29 = 1.069
Front axle bevel gear
34:11 = 3.091
34:11 = 3.091
3.204
3.203
Complete front axle ratio =
primary drive x drive wheel x bevel
gear
Rear axle bevel gear
43:13 = 3.308
43:13 = 3.308
Complete rear axle ratio =
3.207
3.207
rear axle bevel gear x primary drive
Oil system, front final drive/transfer
Shared
Separated
case
Start/Stop System
Yes
No
Automatic transmission
0BK AWD
Transmission
Identification
MXS
MXT
codes
Torque converter
Identification
T139
Y137
codes
Allocation
Type Audi A8 from MY Audi A8 from MY
2010
2010
Engine 6.3L FSI - 368
3.0L FSI - 273
kW
kW
Primary drive
27:29 = 0.931
32:33 = 0.970
Gear wheel (front axle)
31:29 = 1.069
31:29 = 1.069
Front axle bevel gear
34:11 = 3.091
34:11 = 3.091
3.076
3.203
Complete front axle ratio =
primary drive x drive wheel x bevel
gear
Rear axle bevel gear
43:13 = 3.308
43:13 = 3.308
Complete rear axle ratio =
3.080
3.207
rear axle bevel gear x primary drive
Oil system, front final drive/transfer
Shared
Separated
case
Start/Stop System
No
No
140 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Automatic transmission
0BK AWD
Transmission
Identification
NCK
NPQ
codes
Torque converter
Identification
T138
P140
codes
Allocation
Type Audi A8 from MY Audi A8 from MY
2010
2010