OBD port AUDI A4 2021 Owner´s Manual

8W1012721BC
Quick access

@9 Center armrest with storage com-
partment. Depending on vehicle
equipment, it may have:



— Audi music interface .......... 202
—Audi phone box ............... 164
— Starting the engine if there is a
MALFUMERION since oo sxosoue x 2 seems ss 95
@) Electromechanical parking brake
BUGGOT sieves so cman « 2 ewes 2s men 2 106
@) Selector lever (automatic transmis-
SIOM) seo so neon & v Howe & eRe Fa 97
@3 Storage compartment .......... 83
@ [START ENGINE STOP]button .... 95
@3) Audi music interface ............ 202
@@ Steering wheel adjustment ...... 66
@) Lever for:
— Cruise control system ......... 127
— Audi adaptive cruise control .... 130
® Button for switching the head-up
display on and off, adjusting the
height ........ 2... cee eee eee 25
@ Instrument illumination ......... 55
60) Connection port for the On Board
Diagnostic System (OBD) ........ 277
@) Headlight control switch ........ 51
@ Hood release ...............0-. 222
63 All-weather lights button ........ 51
@4 Luggage compartment lid button . 40
@5) Exterior mirror adjustment ...... 55
68 Buttons for:
— Power windows ...........00. 45
—Child safety lock .............. 44
@) Tips
Some the equipment listed here is only instal-
led in certain models or is available as an op-
tion.
Indicator lights overview
The indicator lights in the instrument cluster
blink or turn on. They indicate functions or mal-
functions. Some warning and indicator lights
turn on when you switch the ignition on and must
turn off when the drive system is switched on or
while driving.
With some indicator lights, messages may ap-
pear and warning signals may sound. The indica-
tor lights and messages may be covered by other
displays. To show them again, select the second
tab for messages with the multifunction steering
wheel > page 13.
Some indicator lights in the display can display in
several colors.
OMe eee any
If the wA or N indicator light turns on, check
the message in the instrument cluster.
The following indicator lights may be available,
depending on the vehicle equipment:

Red indicator lights
Central indicator light
=> page 7,
Instrument cluster
=>page 12
















Cooling system
> page 14,
=> page 227,
=> page 227
Safety belt
=> page 70
Transmission
= page 100
Drive system
= page 102,
Electrical system
=> page 230
Brake system
=>page
105,
=>page 229,
Electromechanical parking brake
=> page 107 >

8W1012721BC
Data privacy

Data privacy
Privacy
notice
You can find information about responsibility for
data protection in the MMI.
Applies to: MMI: Select on the home screen: SET-
TINGS > General > Legal notes > About Audi
connect.
Image recording
Surrounding area monitoring
Applies to: vehicles with surrounding area monitoring
Some vehicle functions require the vehicle’s path
to be detected and evaluated. This is done by
cameras installed permanently on the vehicle
that detect objects in the vehicle's surroundings
(such as obstacles or guard rails). The live images
from the cameras are transmitted to the applica-
ble control module.
The camera images are transmitted to the appli-
cable control module and stored for processing.
The control module analyzes the current camera
image using image evaluation software. This im-
age evaluation software detects anonymized
technical measurements, such as distances to ob-
jects. The control module evaluates these techni-
cal measurements and makes it possible for the
assist systems to control the vehicle, if necessary.
Data memories
~ 3. o
g| =z x a.


Fig. 188 Driver's side footwell: connection port for the On
Board Diagnostic System (OBD)
Your vehicle is equipped with electronic control
modules for various vehicle systems such as the
airbags. These vehicle control modules store data
while driving normally that is required by an au-
thorized Audi dealer or authorized Audi Service
Facility for diagnosis and repair purposes. Only
certain types of data are recorded for a very short
period of time if a control module has detected a
system event. No noises, conversations, or im-
ages will be recorded in the vehicle.
The data may include information such as the ve-
hicle speed, the direction of travel, and informa-
tion about the brake system, or also the behavior
of the restraint system in the event of an acci-
dent. The stored data can be exported and down-
loaded with special devices, which must be con-
nected directly to the vehicle.
On Board Diagnostic System (OBD)
There is a diagnostic connector socket in the driv-
er's side footwell to read out the various control
modules and the event data recorder. Data re-
garding the function and condition of the elec-
tronic control modules is stored in the event
memory. Only have an authorized Audi dealer or
authorized Audi Service Facility read out and de-
lete the event memory.

ZX WARNING
— Incorrect use of the connection port for the
On Board Diagnostic System can cause mal-
functions, which can then result in accidents
and serious injuries.
— Only allow an authorized Audi dealer or au-
thorized Audi Service Facility to read out the
engine data.
ash data recorder
Event Data Recorder


This vehicle is equipped with an Event Data Re-
corder (EDR). The main purpose of an EDR is to
record, in certain crash or near crash-like situa-
tions,
such as an airbag deployment or hitting a
road obstacle, data that will assist in understand-
ing how a vehicle's system performed. The EDR is
designed to record data related to vehicle dynam-
ics and safety systems for a short period of time,
typically 30 seconds or less. The EDR in this vehi-
cle is designed to record such data as:
277