Tài liệu đào tạo các hệ thống trên ô tô Audi Q7

Self Study Programme 632
For internal use only

Audi Q7

Audi
Service Training

(type 4M)


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Ξ Contents

The great quattro
With a special emphasis on the values of "Presence", "Precision"
and "Performance", the second generation Audi Q7 is the top-ofthe-range model in the Audi SUV lineup.
Both technically and in terms of its design, it embodies the spirit
of the Audi quattro. The design of the new Audi Q7 is masculine
and resolute. Horizontal lines extend above the wheels. These
blisters are a subtle homage to the classic quattro models by Audi.
In a growing segment, the Audi Q7 cuts a confident figure with its
impressive exterior, superior build quality and its sporty and
efficient engine technology.
The new Audi Q7 is an imposing car. Although it is shorter and
narrower than its predecessor, the cabin is longer and offers more
headroom. 20 years of experience in lightweight design have gone
into the development of the new Audi Q7.

Lightweight construction has been applied in all areas, from the
electrical system to the luggage compartment floor. The key is the
body structure, a new multimaterial design involing the use aluminum castings, extruded sections and panels in the front and rear
ends as well as the superstructure.
The new Audi Q7 welcomes its passengers with an atmosphere of
cultivated elegance and spaciousness. The instrument panel is
visually separated from the centre console, accentuating the
sportiness and lightness of the interior.
The new Audi Q7 is coming to the European market with two
powerful and highly-cultivated V6 engines: a TDI and a TFSI.
Thanks to intensive refinements, their CO2 emissions have been
reduced by as much as 50 grams per kilometre. Both engines
comply with the Euro 6 emissions standard.
Smooth, fast, lightweight and efficient. In the new Audi Q7, a
newly developed eight-speed tiptronic transfers the engine's
power to the quattro permanent all- wheel drive system.

632_002

Learning objectives of this self study programme:
This self study programme describes the design and functioning of
the Audi Q7 (type 4M). If you have read through this self study
programme and the self study programmes listed on page 79, will
you be able to answer questions on the following topics:
• New features of the multimaterial body structure

2

•

•
•
•
•
•
•

New features of the occupant protection system
Engine/gearbox combinations
New features of the chassis
Modifications to the electronics and the driver assistance systems
New features of the electrical system and networking
New features of the air conditioning system
Modifications to and new features of the infotainment system


Contents
Introduction
Presentation __________________________________________________________________________________________________________________________________________________ 4
In brief ________________________________________________________________________________________________________________________________________________________ 6

Body
Introduction __________________________________________________________________________________________________________________________________________________ 8
Joining technology __________________________________________________________________________________________________________________________________________ 10
Attachments _________________________________________________________________________________________________________________________________________________ 12
Seat systems ________________________________________________________________________________________________________________________________________________ 17

Occupant safety
Overview _____________________________________________________________________________________________________________________________________________________ 20

Engines
Petrol Engine ________________________________________________________________________________________________________________________________________________ 22
Diesel engine ________________________________________________________________________________________________________________________________________________ 24
Combined design cover with integrated air filter ________________________________________________________________________________________________________ 28
Engine/gearbox combinations _____________________________________________________________________________________________________________________________ 29

Power transmission
Overview _____________________________________________________________________________________________________________________________________________________ 30
8-speed automatic gearbox 0D5 __________________________________________________________________________________________________________________________ 32
Twin-damper converter with integrated pendulum-type absorber ____________________________________________________________________________________ 34
Mechatronics module _______________________________________________________________________________________________________________________________________ 35
ATF and gear oil systems ___________________________________________________________________________________________________________________________________ 36
Selector mechanism ________________________________________________________________________________________________________________________________________ 40
Gearbox functions ___________________________________________________________________________________________________________________________________________ 50
Service ________________________________________________________________________________________________________________________________________________________ 53

Chassis
Overall concept ______________________________________________________________________________________________________________________________________________ 54
Axles and wheel alignment ________________________________________________________________________________________________________________________________ 55
Chassis with air suspension and electronic damper control ____________________________________________________________________________________________ 56
All-wheel steering ___________________________________________________________________________________________________________________________________________ 57
Brake system ________________________________________________________________________________________________________________________________________________ 58
Steering system _____________________________________________________________________________________________________________________________________________ 59
Adaptive Cruise Control (ACC) _____________________________________________________________________________________________________________________________ 60
Wheels and tyres ____________________________________________________________________________________________________________________________________________ 61

Electrical system
Installation locations of control units ____________________________________________________________________________________________________________________ 62
Topology _____________________________________________________________________________________________________________________________________________________ 64

Infotainment
Overview of versions ________________________________________________________________________________________________________________________________________ 66

Air conditioning
Introduction _________________________________________________________________________________________________________________________________________________ 68
Heater and air conditioner _________________________________________________________________________________________________________________________________ 71
Ionisers _ _____________________________________________________________________________________________________________________________________________________ 73
Auxiliary heater _ ____________________________________________________________________________________________________________________________________________ 75
Windscreen defroster _______________________________________________________________________________________________________________________________________ 76

Service
Inspection and maintenance _______________________________________________________________________________________________________________________________ 77
Self study programmes _____________________________________________________________________________________________________________________________________ 79

The self study programme teaches a basic understanding of the design and mode of operation of new models,
new automotive components or new technologies.
It is not a repair manual! Figures are given for explanatory purposes only and refer to the data valid at the
time of preparation of the SSP. This content is not updated.
For further information on maintenance and repair work, always refer to the current technical literature.

Note

Reference

3


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Ξ Contents

Introduction
Presentation
The new Audi Q7 is a statement of our competence. Its reduced
weight and low centre of mass make it extremely agile. With a kerb
weight of only 1,995 kilogrammes (as the 3.0l TDI), it weighs
325 kilogrammes less than its predecessor.

Although the exterior dimensions are smaller than before, it offers
substantially more interior room for passengers and luggage. Its
innovative assistance and infotainment systems take the SUV to
the front of the pack.

Engines

Assistance systems

6-cylinder V engines with turbocharger
and start-stop system:
• 3.0l TFSI (245 kW)
• 3.0l TDI (200 kW)
Other engine versions will become available at a later date.

The following systems are optionally available:
• Cross-traffic assist
• Trailer assist
• ACC stop & go including traffic jam assistant
• Audi active lane assist

• Audi pre sense basic, front, rear and city
• Exit warning
• Predictive efficiency assist
• Night vision assist
• Evasion assist
• Turning assist

Headlights

Air conditioning

Depending on trim level, the Q7 comes with either xenon, LED or Matrix LED
headlights. The daytime running lights of the LED headlights are shaped like
a double arrow. The taillights of the top model include dynamic turn signals.

A newly developed, two-zone deluxe air conditioning system is standard. Its new operating concept uses fewer buttons and controls. Audi
also offers the option of a four-zone system, the temperature displays
of which are integrated into the rotary dials.

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Body

Power transmission

Ultra-high-strength parts made of hot-shaped steel form the backbone of
the occupant cell. Aluminum castings, extruded sections and panels are
used in the front and rear ends as well as the superstructure. Other parts
made entirely of aluminum are the doors, the front wings, the bonnet and
the rear hatch. A two-piece panoramic glass sunroof is optional.

A newly developed eight-speed tiptronic transfers the engine's power to the
quattro fulltime all-wheel drive system Besides automatic mode, the driver
can also choose to control the tiptronic using the standard paddles on the
steering wheel or using a selector lever. In both cases, the commands are
transmitted entirely electrically (by wire).

632_044

Displays and operation

Chassis

Displays appear on the central MMI monitor, which rises up from the instrument panel when the system is started. The focal point of the operating
system is the MMI all-in-touch control unit with a full touch surface. The
main functions can be accessed using the rotary pushbutton and two rocker
switches. Depending on trim level, the Audi Q7 features a fully digital instrument cluster - the Audi virtual cockpit.

The standard Audi drive select driving dynamics system works
together with the adaptive air suspension to offer 7 modes.
The all-wheel steering system with electric spindle drive adjusts
the rear wheels inward by as much as 5 degrees depending on the
situation. This increases vehicle agility and reduces the turning

radius by up to one metre.

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In brief

Dimensions

1741

1219

1679

1691

1968

2212
632_025

788

107

101
6

1 3)

632_024

978

2994

1080

5052

632_026

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15131)

15712)

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1179
1086

15131)

15712)

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632_027

Exterior dimensions and weights

Inner dimensions and other specifications

Length in mm

5052

Front cabin width in mm

15713)

Width (not including exterior
mirrors) in mm

1968

Front headroom in mm

10714)

Width (including exterior
mirrors) in mm

2212

Front shoulder width in mm

15125)

Rear headroom6) in mm

1016/917

Height in mm

1741

Through-loading width in mm

1086

Front track width in mm

1679

Load sill height in mm

788

Rear track width in mm

1691

Luggage capacity of 5-seater in l

890/20757)

Wheelbase in mm

2994

Luggage capacity of 7-seater in l

7708)/19559)

Kerb weight in kg

19701)

Capacity of fuel tank in l

75/8510)

Gross vehicle weight in kg

27401), 2)

Drag coefficient cw

0.32

Applicable to 5-seater with 3.0l TFSI engine
A factory fitted tow bar increases the maximum gross weight by 100 kg
3)
Elbow room width
4)
Maximum headroom
5)
Shoulder room width
6)
2nd seat row/3rd seat row
7)
With second row seat backs folded down (without optional equipment)
8)
With third row seat backs folded down
9)
With third row seat backs and second row seat backs folded down
10)
Optional
1)
2)

All dimensions are given in millimetres and refer to the unladen weight of the vehicle.
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Body
Introduction
The Audi Q7 (type 4M) is based on the second generation of
MLBevo (Modular Longitudinal Platform Evolution). The lightweight body of multi-material construction represents, with its
function and weight optimised design, a further example of a
highly advanced modern vehicle body. To meet the requriements of
an SUV, the components were deliberately selected according to
the principle of using the right material in the right place.

Aluminium components
Aluminum castings, extruded sections and panels are used in the
front and rear ends as well as the superstructure.
They account for 41 % of the body structure and are broken down
as follows:
• 23 % sheet aluminium
• 15 % die-cast aluminium
• 3 % aluminium profile

The doors, which save 24 kg in weight, as well as the front wings,
the bonnet and rear hatch are made entirely of aluminium. The
multimaterial construction reduces the weight of the Q7 body by
71 kg compared with the previous model.

Key:
Sheet aluminium
Die-cast aluminium

Aluminium section
Ultra high strength steel (hot-formed)
Advanced high strength steel
High strength steel
Low strength steel
8

The high quality of the selected materials offers not only reduces
weight, but also provides the basis for meeting the most stringent
vehicle safety standards.


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632_083

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Ultra-high-strength hot-formed components

The use of ultra high strength steel materials necessitates, in the
event of body repairs, special repair methods adapted to the
properties of the materials.

Following miscellaneous tests and crash tests, approval was given
for two sectional repair areas where MAG welding is allowable in
the case of the Audi Q7:

The high heat transfor in the welded areas significantly weakens
the strength and structure of the component by altering the
microstructure of the material. For this reason, the use of MAG
inert gas welding for sectional repair purposes is only permitted on
these high quality steels in isolated cases and in precisely defined
areas. The relevant descriptions can be found in the workshop
literature.

1
2

Outer top left /right A post
Inside left/right B post

The following ultra high strength hot-formed components have to
be completely replaced if damaged:
3
4
5
6

1

Inside left/right sill
Cross-member of outside left/right bulkhead
End section of left/right cross member 2
Upper tunnel reinforcement

2

3
4

6

5

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Joining technology
The key to optimising the body structure is using "the right materials in the right place". The resulting challenge for the joining
technology was to develop, to the greatest extent possible, universal and reliable solutions for the large variance in material/thickness combinations in the body.
The body is held together by the following types of join:
"Cold" joining methods

"Hot" joining methods

•
•
•
•
•

•

•
•
•
•
•

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2125 punch rivets (semi-hollow rivets)
108 punch rivets (special semi-hollow rivets)
610 flow-drill screws
58 clinching points
146 m of adhesive
4.5 m of seaming

2579 spot welds
105 friction elements
2.3 m of TIG weld seams
2 m of MAG weld seams
9.2 m of laser-welded seams


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New joining techniques
Punch riveting
Punch riveting with semi-hollow rivets is a well-known method in
which non-prepunched workpieces are joined to form 2 or more
layers. The rivet punches through the upper components and then
expands into the basic component. The joining of ultra high
strength hot-formed components requires a new special semi
hollow rivet in the case of the Audi Q7.
632_085

Friction element welding
Another new feature of the Q7 body is the use for the first time of
friction element welding. A friction element joints at least 2 workpieces together. In the case of the Q7, for example, friction elements are used to joint sheet aluminium with ultra high strength
hot-formed sheet steel. The rotating friction element initially
penetrates the upper layer of the workpiece (aluminium) and then
produces a frictional join with the basic material (ultra high
strength hot-shaped steel) through the application of frictional
heat and high axial pressure. The axial contact pressure is also
maintained for a short time after welding the components
together in order to homogenise the zones in which the microstructure is changed.

632_086

Sheet aluminium
Die-cast aluminium

Steel
Ultra high strength steel
(22MnB5)

Joining techniques in overview
Similar types of join

Mixed design

Aluminium / aluminium

Steel / steel

Aluminium / steel
with Rm of up to 800 MPa

Aluminium / steel
with Rm of 800 MPa or higher

Punch riveting with semi hollow
rivets

Resistance spot welding

Punch riveting with semi hollow
rivets

Punch riveting with special semi
hollow rivets

FDS screwing

MAG welding

FDS screwing

Friction element welding

Clinching

Clinching

Seaming

Laser welding

Seaming

TIG welding
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Attachments
Panoramic glass sunroof
The optional panoramic glass sunroof offers an unobstructed view
of the sky and makes the interior feel even brighter, more airy and
spacious.
Unlike in the previous model, the panoramic sunroof on the new

Audi Audi Q7 is a two-piece design only. The front glass panel is
movable and can be tilted or slid back. The rear glass panel is fixed.

This reduces the gross weight of the panoramic glass sunroof by
about 10 kg whilst increasing the headroom in the rear cabin.
Reinforced roof elements at the guide rail and above the third row
of seats increase body stiffness to such effect that there is no
longer any difference in stiffness compared to an Audi Q7 without
a panoramic glass sunroof.
A power operated roller blind for both glass panels provides
protection against sunlight if needed.

Glass panel 2 (fixed)

Glass panel 1

Panoramic glass sunroof
mechanism

Wind deflector
Roof cutout seal

Frame for
panoramic glass
sunroof

Direction of travel

Front water outlet

Sliding sunroof
motor
V1
Sliding sunroof
adjustment
control unit
J245

Rear water outlet

Sliding sunroof roller blind motor
V260

Roof roller blind

Front water outlet
632_066

Note
With regard to cleaning the water drain hoses and cleaning and lubricating the sliding sunroof mechanism, the information
given in the current service literature must be observed.
To ensure the proper functioning of the panoramic glass sunroof after the motor has been removed and reinstalled or
replaced, a so-called teach cycle must be carried out (refer to "Diagnostic tester").

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Aerodynamics and aeroacoustics
The solid and elegant impression is accentuated by the highquality sound insulation which gives unrivalled protection from
noise. To further improve aerodynamics and minimise wind noise,
the door mirrors, for example, have been moved from the front
cheater to the door shoulder.

Thanks to elaborate technical solutions, the Q7 has a cw value of
only 0.32 – an outstanding figure for this segment.
The underbody is almost completely clad and a small spoiler in the
rear axle area provides added downforce.

Radiator louvre
The so-called efficiency model1), the 160 kW (218 hp) V6 TDI with
emission class EU6 or ULEV125 for North America has a radiator
louvre with plastic slats between the singleframe grille and the
upper section of the main radiator. These slats open or close as
required to provide better aerodynamic performance.

Radiator louvre closed

The radiator louvre also controls air intake upstream of the radiator in such a way as to improve the vehicle's cw value. This measure
brings better fuel economy and lower CO2 emissions. In addition, a
closed louvre is beneficial to thermal management of the engine.

Radiator louvre control motor
V544

632_080

Radiator louvre open

632_082

1)

To be introduced at a later date.
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Electric rear lid
The wrap-around rear hatch embracing the sharply inclined D-posts
- a typical design element of the Audi Q models - is made entirely
of aluminum. Like in the current Avant models, an electric rear
hatch drive is standard equipment.
The power closing system is new. In the Audi Q7 this function is
performed by the rear hatch lock, whereas in other Audi models
the striker on the rear bumper mount is used.

When the microswitch in the rear hatch lock indicates that the
striker is in the prelock position and the rear hatch control unit
J605 indicates that the rear hatch is in the "closed" position, an

excentrically mounted cam wheel in the rear hatch power latching
system motor V382 pulls the catch in the rear hatch lock further
into the fully locked position by means of a Bowden cable – in
much the same way as the power closing feature of the door locks.
The end position of the cam wheel is monitored by the rear hatch
control unit J605, while the position of the catch is monitored by
the central comfort/convenience system control unit J393 via
microswitches.

Rear hatch power latching system motor
V382

Bowden cable

Rear hatch lock with
central locking motor in rear hatch V53
(rotated for a better view)

Catch

Pawl

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Glazing
Basically, the customer can choose between 2 glazing variants for
the Audi Q7. An optional electric windscreen heater is only available for the insulating glass windscreen. Both variants are also
available in combination with privacy glazing from the B post back.

When replacing a window, attention must be paid to use of the
correct variant. This, in turn, is dependent on other equipment
such as the head-up display, front camera for driver assistance
systems, main beam assist etc.

Glazing variant 1:
Windscreen
• Acoustic windscreen made
of laminated safety glass

Option
• Privacy glazing from the B post back

Rear window
• Toughened safety glass

Side windows
• Toughened safety glass
632_069

Glazing variant 2:
Windscreen

• Insulating glass made of
laminated safety glass
• Windscreen heater as
optional equipment

Option
• Privacy glazing from the B post back

Rear window
• Toughened safety glass

Key
1.8 mm of outer/inner glass
0.76 mm of acoustic film (composite film 1)

Side windows
• Laminated safety glass
632_068

0.05 mm of infrarred filter
0.38 mm of composite film 2
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Tow bar
The Audi Q7 is available with a fully electric swivelling tow bar with
a built-in tow bar swivel angle sensor G820.

In this case, the engine cooling system is already rated for the
higher loads when towing a trailer.

Swivelling ball joint motor
V317

632_067

Articulation angle sensor for tow bar
G820

Preparation for trailer operation
A preparation for trailer operation is available for the USA and
Australia. Both variants differ only in terms of the socket holder,
but already come equipped with a modified cooling system.

It is also possible to retrofit the Audi Q7 with a tow bar. Depending
on engine version and climate zone, it is necessary to uprate the
cooling system.

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Seat systems
Manually adjustable front seats are standard on the Audi Q7.
Sports seats with large side bolsters and the individual contour
seat are optional. Depending on seat variant, a seat heater, seat
ventilation, pneumatic seat backs, pneumatic lumbar support and
a pneumatic massage function can be ordered.
The second row comprises three seats and seat backs with adjustable inclination. As an option, all three seats can be adjusted
variably fore or aft by up to 110 mm. A further option is 2 individual seats in the third row which are approved as group 3 child
seats.

Electrical seat
adjustment

A additional 24 mm of headroom and 20 mm more shoulder room
make for a more spacious interior. Folded down, the seat backs are
integrated in the load floor and can be electrically raised or
lowered using rocker switches. The switches are located in the
C post area and in the luggage compartment.
The seats in the second row have a fold-up function for easier entry
and exit from the third seat row. The seat back is folded forward,
after which the entire seat can be folded vertically. All seats in the
second and third rows have Isofix child seat restraints. This means
that customers can secure up to 6 child seats in the Audi Q7.

Deluxe head restraints,
horizontally and vertically adjustable

Sliding rear seats as individual seats,
with fold-up function

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Individual contour seat
The individual contour seat in full spec offers the following functions:
•
•
•
•
•
•
•

Electrical seat adjustment
Pneumatic side bolsters in the seat base and back
Pneumatic lumbar support adjustment
Seat heating
Seat ventilation

Massage functionality
Memory function and seat contour customisation (each seat
contour is assigned to a specific vehicle key)

Seat ventilation is optional for the front seats and for the two
outer rear seats in the second row. It serves to air-condition the
vehicle seats with the aim of providing the occupant with extra
comfort. The seats have an intake system for this purpose.
The front seat ventilation controls communicate with the onboard
power supply control unit J519 by LIN data bus. The rear seat
ventilation controls are connected to the rear air conditioner
operating and display unit E265.

Multi-contour seat control unit, front
driver side J873
Seat back bolster, pneumatic

Massage cushion, pneumatic

Seat back ventilation

Seat base ventilation

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Kinematic mechanism of third seat row
The Audi Q7 is optionally available with a third row of seats. It is a
two seater bench with 2 electric folding backrests.
For reasons of space, the head restraints on these seats must be
folded in before folding down the seats.

This is carried out automatically by the kinematic mechanism
inside the seat or can be done manually using a tab below the head
restraint. After the backrest has been folded up, the head
restraints must again be folded up manually. This is achieved by
swivelling them upwards until they noticeably lock into place.

Motor of pawl 2 for
right seat back adjustment, third seat row
F525

Tab for manual
fold-down of the head restraint

Bowden cable for
automatic fold-down of
the head restraint

Motor of pawl 2 for right
seat back adjustment,
third seat row

F544

Motor for right seat back
adjustment, third seat row
V361

Switch forleft seat back
adjustment, third seat row
E565
Switch for right seat back
adjustment, third seat row
E549

Switch 2 for left seat back adjustment,
third seat row E801 and
switch 2 for right seat back adjustment, third seat row E804
632_051

Operation
The backrests fold down using the operating buttons in the rear
cabin and in the luggage compartment. This button must be kept
pressed until the backrest is completely folded down or up.

An electric motor unlocks and moves each backrest; the end
position is monitored by 2 microswitches. If a backrest has not
reached its end position, the backrest warning lamp appears on the
display in the instrument cluster and the LEDs in the operating
buttons begin to flash.

Operating buttons in the rear cabin

Operating buttons in the luggage compartment

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632_030
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Occupant safety
Overview

In-vehicle airbags
Driver airbag

On the following pages you will find a summary of the occupant
protection system in the Audi Q7.

Front passenger airbag

Components
Front side airbag

Depending on country version and trim level, the passive occupant

and pedestrian protection system in the Audi Q7 can comprise the
following components and systems:
• Airbag control unit
• Adaptive driver airbag
• Adaptive front passenger airbag
(front passenger airbag, two-stage country version)
• Front side airbags
• Rear side airbags (equipment option)
• Head airbags
• Front airbag crash sensors
• Crash sensors for side impact detection in the doors
• Crash sensors for side impact detection in the C posts
• Crash sensor for side and longitudinal impact detection
• Centre pedestrian protection crash sensor
(acceleration sensor, country version)
• Left and right pedestrian protection crash sensors
(pressure sensors, country version)

20

•
•
•
•
•
•
•
•
•
•

•
•
•

Front inertia-reel seat belts with pyrotechnic belt tensioners
Front inertia-reel seat belts with electrical belt tensioners
Front inertia-reel seat belts with active belt force limiters
Inertia-reel seat belts for second seat row with pyrotechnic belt
tensioners, driver and front passenger sides (country version)
Inertia-reel seat belts for third seat row with pyrotechnic belt
tensioners, driver and front passenger sides (country version)
Front lap belt tensioner (country version)
Seat belt warning for all seats (country version)
Seat occupancy sensor in front passenger seat
Front passenger airbag disabling switch (country version)
Front passenger airbag OFF and ON warning lamp
Driver and front passenger seat position sensors
Pedestrian protection trigger (country version)
Battery isolator


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Front side airbag

Head airbag,
driver and front passenger side

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Rear side airbag

Rear side airbag

632_072

Reference
For further information on the active and passive safety features in the Audi Q7, please refer to Self Study Programme 637
"Audi Q7 (type 4M) Occupant protection and infotainment".
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Engines
Petrol Engine
Torque/power curve of 3.0l V6 TFSI engine
  Power output in kW
  Torque in Nm

632_060

Engine speed [rpm]
632_012

Features

Specifications

Engine code

CREC

Type

6-cylinder V-engine with 90° V angle

Displacement in cm3

2995

Stroke in mm

89

Bore in mm

84.5

Number of valves per cylinder

4

Firing order

1-4-3-6-2-5

Compression ratio

10.8 : 1

Power output in kW at rpm

245 at 5500 - 6500

Torque in Nm at rpm

440 at 2900 - 5300

Fuel type

Premium unleaded 95 RON

Engine management system

Simos

Supercharging

Deactivatable supercharger (Roots blower)

Lambda control

2 sensors upstream of catalytic converter and 2 sensors downstream of catalytic

converter

Mixture formation

Combined (dual) direct (FSI) and multipoint (MPI) injection

Emission standard

EU6

CO2 emissions in g/km

179

Reference
For further information about the 3.0l V6 TFSI engine, please refer to Self Study Programme 624
"Fourth generation Audi 3.0l V6 TFSI engine EA837 (evo)"
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Cooling circuit of 3.0l V6 TFSI engine
1

2

3

V55

4
N279
5

V50

4

6

9

N509

G694

4

12

7

8

10

11

13
15

16
14
G62
J671

J293

17

16

19

V188

18

20

632_009

Key:
1
2
3

4
5
6
7
8
9
10
11
12
13
14
15
16
17

Front heater heat exchanger
Rear heater heat exchanger
Auxiliary heater
Vent screw
Flow restrictor
ATF cooler
Right charge air cooler
Cylinder head, bank 1
Motor oil cooler
Cylinder head, bank 2
Left charge air cooler
Coolant expansion tank
Switchable coolant pump
Coolant thermostat
Coolant shutoff valve

Non-return valve
Radiator

18
19
20

Auxiliary radiator
Front cooler for charge air cooling circuit
Left cooler for charge air cooling circuit

G62 Coolant temperature sensor
G694 Temperature sensor for engine temperature regulation
J293 Radiator fan control unit
J671 Radiator fan control unit 2
N279 Heater coolant shut-off valve
N509 Gearbox oil cooling valve
V50 Coolant circulation pump
V55 Circulation pump
V188 Charge air cooling pump
Cooled coolant
Cooled coolant (charge air cooling)
Hot coolant
Hot coolant (charge air cooling)
23


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Ξ Contents

Diesel engine
Torque/power curve of 3.0l V6 TDI engine
  Power output in kW
  Torque in Nm

632_005

Engine speed [rpm]

The engine code is, as seen in the direction of travel, located at the
front left below the cylinder head on the protruding edge of the
engine block.

Features

Specifications

Engine code

CRTC

Type

632_003

6-cylinder V-engine with 90° V angle

Displacement in cm

2967

Stroke in mm

91.4

Bore in mm

83.0

Number of valves per cylinder

4

Firing order

1-4-3-6-2-5

Compression ratio

16.0 : 1

Power output in kW at rpm

200 at 4000

Torque in Nm at rpm

600 at 1500 - 3000

Fuel type

Diesel acc. to EN 590

Engine management system

Bosch EDC 17 with start-stop and recuperation

Maximum injection pressure in bar

2000

Fuel injectors

8-port piezo injectors

Exhaust gas treatment

Oxidising catalyst, SCR coated diesel particulate filter, particulate sensor, oxygen
sensor

Emission standard

EU6

CO2 emissions in g/km

149

3

24


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Ξ Contents

Coolant circuit of 3.0l V6 TDI engine
1

V55

2

3

4
N279
V50
5

6

N509

7
N474
8
14

11
9

12

G62

N489

10

13

10

G694
5
15

5

5

G802

G8

F265

16
10

J671

J293

17
5
632_010

Key:
1
2
3
4
5
6
7
8
9
10
11
12
13
14

15
16
17

Front heater heat exchanger
Rear heater heat exchanger
Auxiliary heater
Vent screw
Non-return valve
ATF cooler
Exhaust turbocharger
Exhaust gas recirculation cooler
Coolant expansion tank
Flow restrictor
Cylinder head, bank 1
Engine block, bank 1
Cylinder head, bank 2
Cylinder head, bank 2
Motor oil cooler
Coolant pump
Radiator

F265 Thermostat for mapped engine cooling
G8
Oil temperature sender
G62 Coolant temperature sensor
G694 Temperature sensor for engine temperature regulation
G802 Coolant temperature sensor 2
J293 Radiator fan control unit
J671 Radiator fan control unit 2

N279 Heater coolant shut-off valve
N474 Reducing agent injector
N489 Cylinder head coolant valve (rotary valve)
N509 Gearbox oil cooling valve
V50 Coolant circulation pump
V55 Circulation pump
Cooled coolant
Cooled coolant (charge air cooling)
Hot coolant
Hot coolant (charge air cooling)
25