NHTSA ID Number: 10250641
Manufacturer Communication Number: 990143
TSB/Document Date: 2024-02-26
Summary
The 2015 Audi
A3 Introduction
The LTE antenna 1 is designed as a transmitting and receiving antenna. It is also responsible for the operation in the
UMTS/GSM network. LTE antenna 2 is only a receiver
antenna for LTE.
When travelling in an area that has only a UMTS/GSM
network available, LTE antenna 1 switches its role to receiving those signals. Once the vehicle is in an area where LTE
coverage is available, LTE antenna 2 assumes the reception
duties.
Antenna 1
LTE/UMTS/GSM
Antenna 2
LTE
Information Electronics Control Module 1 J794 with LTE antennas.
625_129
Note
The LTE module is used only for data receiving. To use a mobile phone it must be connected to J794 using the
Hands Free Profile (HFP).
78
Reception indicator
The LTE data module can exchange data via the LTE as well
as via the UMTS or GSM network.
The following displays of signal strength and the current
network connectivity are shown:
•
•
•
•
2 G GSM network with EDGE (max 220 kbit / s)
3 G UMTS network with HSPA (up 7.2 Mbit / s)
4 G UMTS network with HSPA + (max. 21 Mbit / s)
LTE 4 G LTE network (max. 100 Mbit / s)
618_074a
Diagnosis
If Antenna 1 fails, it is no longer possible to send or receive
data.
In antenna 2 fails, the data rate in the LTE mode may be
restricted.
Both antennas are monitored by Self-diagnosis. A DTC
entry is made in the event of failures.
.
79
Notes
80
Antenna overview
The aerials in the 2015 Audi A3 are distributed across the
rear window and the roof aerial R216. The boosters for the
aerials in the rear window and in the rear spoiler are
mounted to the rear hatch.
The boosters for the antennas in the rear window are
mounted under the C-pillar trim panel.
SDAR antenna
Antenna amplifier 2
R111
FM Connection
Antenna amplifier 3
R112
81
Roof aerial R216
(North America)
SDARS (Satellite Radio)
Telephone
609_112
Roof Antenna
R216
AM antenna
Antenna amplifier
R24
FM1/AM connection
Antenna amplifier 4
R113
625_131
82
LTE antennas
The Audi’s A3 sedan with Audi connect has two LTE antennas mounted on the inside of the rear bumper.
83
Information Electronics Control Module 1
J794
Roof Antenna
R216
GSM Antenna 2
R267
GSM Antenna
R205
625_132a
84
Sound systems
The Audi sound system is standard equipment for the 2015
A3 sedan. It features nine speakers and a hat-shelf
mounted sub-woofer. The audio amplifier is integrated
with Information Electronics Control Module J794 and has
a total power output of 180 watts.
Audi sound system
Center speaker
R208
Treble loudspeaker
front left
R20
Bass loudspeaker
front right
R23
Treble loudspeaker
rear left
R14
Bass loudspeaker
front left
R21
85
Treble loudspeaker
rear right
R16
Treble loudspeaker
front right
R22
Bass loudspeaker
rear right
R17
Sub-woofer
R211
Bass loudspeaker
rear left
R15
609_109a
The optional Bang & Olufsen Sound System delivers a total
power output of approximately 705 watts.
With its 5.1 Surround Sound speakers,it provides excellent
sound quality. The external Bang & Olufsen audio amplifier
(Digital Sound System Control Module J525) powers a total
of 13 loudspeakers and the sub-woofer through its 15
channels. The sub-woofer is driven through two channels.
The external audio amplifier is installed under the left front
seat. It is connected to Information Electronics Control
Module J794 via the MOST bus. When the Bang & Olufsen
system is installed, both bass front speakers in the doors
are highlighted by indirect LED lighting controlled by the
door control modules.
The subwoofer is located under the rear hat-shelf.
Audi A3 sedan with Bang & Olufsen Sound System
Center Speaker
R208
Right Front Bass
Speaker
R23
Right Front Treble
Speaker
R22
Left Front Bass
Speaker
R21
Left Front Treble
Speaker
R20
Digital Sound
System Control
Module
J525
Left Front Midrange
Speaker
R103
Right Front Midrange
Speaker
R104
Right Rear Treble
Speaker
R16
Left Rear Treble
Speaker
R14
Left Rear Bass
Speaker
R15
Right Effects
Speaker
R210
Right Rear Bass
Speaker
R17
Sub-woofer
R211
Left Effects Speaker
R209
625_133
86
Service
Service interval overview for North American region
Service recommendations can be viewed through the MMI.
•
•
•
Oil change service
Mileage based service events
time based service events
Flexible service event
(ROW)
Mileage based service event
Time based service event
625_073a
nge
cha
oil
and
ser
Oil
cha
nge
tio
Ins
pec
vic
e
ice
ns
er v
vic
e
ser
Oil
cha
nge
tio
Ins
pec
cha
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ser
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er v
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ice
and
oil
cha
nge
The first recommended oil change for A3 sedans in the
North American region is at 5000 mi (8000 km) or at one
year from the date of delivery. An oil change and inspection service is recommended at 15,000 mi (24,000 km) Oil
change service is recommended 10,000 mi (16,000 km)
thereafter with. See the chart below.
5000 mi (8000 km)
1 year
15,000 mi (24,000 km)
2 years
25,000 mi (40,000 km)
3 years
35,000 mi (56,000 km)
4 years
45,000 mi (72,000 km)
625_080
87
Special tools and workshop equipment
T10172 with T10172/11
609_159
T10489
609_160
609_161
Tensioning the timing belt
Disconnecting the high-pressure pump drive gear
T10491
T10493
609_163
609_165
Removing and installing the oxygen sensor
Installing the camshaft seal
T10503
T10502
609_151
609_152
For use with reversible ratchet attachment for bits VAS 6784
Installing the protective cap on the brake caliper housing
VAS 6748
VAS 6338/38
609_178
Removing and installing the Airbag Control Module,
in combination with T10503
609_179
Flushing the air conditioner refrigerant system
88
T10383
VAS 6416
625_144
625_143
Removing the selector lever and/or selector indicator gasket
Removing the center console trim
T10490
T10501
625_140
625_142
Crankshaft lock. Used on 1.8L and 2.0L EA88 third
generation engines.
Turbocharger removal and installation
T10492
VAS 6606 bridge, 198 pin -1VAS 6606/10 Test adapter -21
2
2
625_141
Locking pins. Used to lock the high pressure pump during
removal/installation on second generation 2.0L TDI
engine.
89
625_139
For diagnosing control modules with 198 pin connectors
(UDS control modules)
Notes
90
Self Study Program
eSelf-Study Program 920243
SSP 920243
Audi 1.8L and 2.0L Third
Generation EA888 Engines
SSP 970343
The 2015 Audi A3 Vehicle
Electronics and Drivers Assistance
Systems
The Audi 1.8L and 2.0L Third Generation
EA888 Engines
1
SSP 970143
Modular Infotainment Platform
(MIB)
eSelf Study Program 960143
SSP 960143
The 2015 Audi A3 Running Gear
and Suspension Systems
The 2015 Audi A3
Running Gear and Suspension System
SSP 970243
The 2015 Audi A3 Onboard Power
Supply and Networking Systems
91
SSP 920143
The Audi 2.0L Third Generation
TDI Engine
Knowledge Assessment
An On-Line Knowledge Assessment (exam) is Available for this eSelf-Study Program.
The Knowledge Assessment is required for Certification.
You can find this Knowledge Assessment at:
www.accessaudi.com
From the accessaudi.com Homepage:
•
Click on the “ACADEMY” tab
•
Click on the “Academy site” link
•
Click on the Course Catalog Search and select “990143 - Audi A3 Introduction”
Please submit any questions or inquiries via the Academy CRC Online Support Form
which is located under the “Support” tab or the “Contact Us” tab of the Academy CRC.
Thank you for reading this eSelf-Study Program and taking the assessment.
92
990143
All rights reserved.
Technical specifications are
subject to change without notice.
Audi of America, LLC
2200 Ferdinand Porsche Drive
Herndon, VA 20171
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TSB/Document ID: 990143
Replacement Service Bulletin Number:
MFR Communication Date: 2013-12-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MFR Component System:
MFR Component Subsystem:
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