2018 AUDI A7 fuel pressure

a co .... N
" N .... 0 00 \.J ' @ For the sake of the environment
Reinstall summer tires at the appropriate
time, because they provide better handling
when roads are free of snow and ice. Summer
tires cause less road noise, tire wear and fuel
consumption.
(D Tips
You can also use all season tires instead of
winter tires. Please note that in some coun­
tries where winter tires are required, only
winter tires with the
& symbol may be per­
mitted .
Snow chains
Snow chains not only improve the driving in win­
ter road conditions, but also the braking .
.,. Only install snow chains on the front wheels.
This applies also to vehicles with all wheel
drive*.
.,. Check and correct the seating of the snow
chains after driving a few feet, if necessary. Fol­
low the instructions from the manufacturer .
.,. Note the maximum speed of 30 mph (SO km/
h). Note the local regulations.
Use of snow chains is only permitted with certain
rim/tire combinations due to technical reasons.
Check with an authorized Audi dealer or author­ i zed Audi Service Facility to see if you may use
snow chains.
You must remove the snow chains on roads with­
out snow. Otherwise, you could impair driving
ability and damage the tires.
A WARNING
Using incorrect snow chains or installing snow
chains incorrectly can result in loss of vehicle
control, which increases the risk of an acci­
dent.
@ Note
- Snow chains can damage the rims/wheel
covers* if the chains come into direct con­
tact with them . Remove the wheel covers*
first . Use coated snow chains.
Wheels
- Using snow chains that add more than 0.4
inch (10.5 mm) of height can severely dam­
age the wheel housings and other vehicle
components.
- Do not install and use snow chains if there is
a malfunction in the air suspension*, be­
cause the vehicle height will be very low. If
you drive with snow chains anyway, the
wheel housings and other vehicle compo­
nents can be severely damaged .
(D Tips
When using snow chains, it may be useful to
switch on sport mode
c> page 121.
Low-profile tires
Applies to: vehicles with low-profile tires
Compared to other tire/rim combinations, low­
profile tires offer a wider tread surface and a
larger rim diameter with shorter tire sidewalls.
This results in an agile driving style. However, it
may reduce the level of comfort and increase
road noise when driving on roads in poor condi­
tion.
Low-profile tires can become damaged more
quickly than standard tires when driving over
large bumps, potholes, manhole covers and
curbs. Therefore, it is particularly important to
maintain the correct tire pressure
c>page 215.
To reduce the risk of damage to the tires and
rims, drive very carefully on poor roads.
Check your wheels regularly every 2,000 mi
(3,000 km) for damage. For example, check for
bulges/cracks on the tires or deformations/
cracks on the rims.
After a heavy impact or damage, have the tires
and rims inspected or replaced immediately by
an authorized Audi dealer or authorized Audi
Service Facility.
Low-profile tires can wear out faster than stand­
ard tires.
Uniform tire quality grading
-Tread wear
221

a co ,...,
N
" N ,...,
0 00 <.,;) ' significantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-inf la­
tion also reduces fuel efficiency and tire tread
life, and may affect the vehicle's handling and
stopping ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re­
sponsibility to maintain correct tire pressure,
even if under-inflation has not reached the level
to trigger illumination of the TPMS low tire pres ­
sure telltale .
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the sys­
tem is not operating properly . The TPMS mal­
function indicator is combined with the low tire pressure telltale . When the system detects a
malfunction, the telltale will flash for approxi­
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the mal­
function exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly . Always che ck the
TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure
that the replacement or alternate tires and
wheels allow the TPMS to continue to function
properly.
Wheels
If the tire pressure monitoring system
indicator appears
Applies to: vehicles with Tire Pressure Monito ring System in­
dicator
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too low
or if there is a system malfunction.
Fig. 191 Ins trumen t cluster : indicator light w it h message
Using the ABS sensors, the tire pressure monitor­
ing system compares the tire tread circumfer­
ence and vibration characteristics of the individu­
al tires.
If the pressure changes in one or more
tires, th is is ind icated in the instrument cluster
display with an indicato r light
[I] and a message .
If only one tire is affected, the location of that
tire will be indicated.
The tire pressures must be stored in the Infotain­
ment system again each time the pressures
change (switching between partial and full load
pressure) or after changing or replacing a tire on
your
vehicle ~ page 224. The tire pressure moni­
toring system only monitors the tire pressure you
have stored. Refer to the tire pressure label for
the recommended tire pressure for your vehicle
~ page 215, fig . 190.
Tire tread circumference and vibration character­
istics can change and cause a tire pressure warn­
ing if :
- the tire pressure in one or more tires is too low
- the tire has structural damage
- the tire was replaced or the tire pressure was
changed and it was not stored
~ page 224
- the spare tire* is installed
223

Wheels
Indicator lights
It]-loss of pressure in at least one tire¢,&. .
Check the tires and replace or repair if necessary.
Check/correct the pressures of all four tires and
store the pressure again in the Infotainment sys­
tem
¢ page 224.
[m]) (Tire Pressure Monitoring System) Tire
pressure: System malfunction!.
If[m]J appears
after switching the ignition on or while driving
and the
RI] indicator light in the instrument clus­
ter blinks for approximately one minute and then
stays on, there is system malfunction. Try to
store the correct tire
pressures¢ page 224 . If
the indicator light does turn off or turns on again
after a short period of time, drive to an author­
ized Audi dealer or authorized Audi Service Facili­
ty immediately to have the malfunction correct­
ed.
A WARNING
- If the tire pressure indicator appears in the
display, reduce your speed immediately and
avoid any hard steering or braking maneu­
vers. Stop as soon as possible and check the
tires and their pressure .
- The driver is responsible for maintaining the
correct tire pressure. You must check the
tire pressure regularly.
- Under certain conditions (such as a sporty
driving style, winter conditions or unpaved
roads), the tire pressure monitoring system
indicator may be delayed.
(D Tips
- The tire pressure monitoring system can al­
so stop working when there is an ESC mal­
function.
- Using snow chains may result in a system
malfunction.
- The tire pressure monitoring system in your
Audi was calibrated with "Audi Original
Tires"
¢ page 212. Using these tires is rec­
ommended .
224
Storing tire pressures
Applies to: vehicles with Tire P ressure Monitoring System in­
dicator
If the tire pressure changes or a tire is replaced,
it must be confirmed in the Infotainment sys­
tem.
.,. Make sure before storing that the tire pressures
of all four tires meet the specified values and
are adapted to the load
¢page 215.
.,. Switch the ignition on .
.,. Select: the I CARI function button > (Car)* Sys­
tems
control button > Service & control > Tire
pressure monitor> Store tire pressure > Yes,
store now.
(D Tips
Do not store the tire pressures if snow chains
are installed.
Tire pressure monitoring
system
ill General notes
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat­
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure la­
bel, you should determine the proper tire infla­
tion pressure for those tires).
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system
(TPMS) that illuminates a low tire pressure tell­
tale when one or more of your tires is significant­
ly under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a signifi­
cantly under-inflated tire causes the tire to over­
heat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stop-
ping ability.
.,.

Index
Oil
Ind icator light . . . . . . . . . . . . . . . . . . . . . . . 17
also refe r to Engine oil . . . . . . . . . . . . . . . 196
O il change interval . . . . . . . . . . . . . . . . . . . . 203
On-board computer . . . . . . . . . . . . . . . . . . . . 21
On-Board Diagnostic System (OBD) . . . . . . . 193
Opening ..... .. .. ................ ... .. 26
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . 190
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
L uggage compartment lid . . . . . . . . . . . . . . 32
Sunroof. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Opening/closing Using the door lock cylinder . . . . . . . . . . . . 31
With the convenience key . . . . . . . . . . . . . . 29
also refer to Unlocking/locking . . . . . . . . . . 26
Other consumers (efficiency program) . . . . . 22
Overboost (automatic transmission) . . . . . . . 78
Overview (Cockpit) . . . . . . . . . . . . . . . . . . . . . . 6
p
Paint damage
Paint number
Parking aid 230
253
Cleaning sensors/camera
. . . . . . . . . . . . . 229
Parking brake
refer to Electromechanical parking brake . 72
Parking lights . . . . . . . . . . . . . . . . . . . . . . . . . 39
Parking system
refer to Parking systems .......... 109, 110
Parking systems . . . . . . . . . . . . . . . . . . . . . . 108
Adjusting the display/warning tone . . . . . 118
C leaning the rearview camera . . . . . . . . . . 110
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . 118
Parking system plus . . . . . . . . . . . . . . . . . . 109
Peripheral cameras . . . . . . . . . . . . . . . . . . 113
Peripheral display . . . . . . . . . . . . . . . . . . . 109
Re arview camera . . . . . . . . . . . . . . . . . . . . 110
T railer hitch . . . . . . . . . . . . . . . . . . . . . . . . 118
Parking (automatic transmission) . . . . . . . . . 76
Parts replacement . . . . . . . . . . . . . . . . . . . . 257
Pass-through . . . . . . . . . . . . . . . . . . . . . . . . . 57
PASSENGER AIR BAG OFF light . . . . . . . . . . 158
Passenger protection . . . . . . . . . . . . . . . . . . . 95
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Pedestrian detection . . . . . . . . . . . . . . . . . . 102
266
Periphera l display . . . . . . . . . . . . . . . . . . . . . 109
Physical principles of a frontal collision . . . 139
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Pol len fi lter
refer to Pollutant filt er . . . . . . . . . . . . . . . . 58
Pollutant filter . . . . . . . . . . . . . . . . . . . . . . . . 58
Power Seat adjustment . . . . . . . . . . . . . . . . . . . . . 47
Windows . .. .. .. .. .. ............. .. . 35
Power windows Child safety lock . . . . . . . . . . . . . . . . . . . . . . 35
Convenience opening . . . . . . . . . . . . . . . . . . 36
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . 36
Pregnant women
Special considerations when wearing a safe-
ty be lt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Pre sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Pressure Tire pressure monitoring system 223
Pretensioners Pre sense . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Preventative passenger protection . . . . . . . . 95
Proper occupant seating positions . . . . . . . 130
Proper safety be lt position . . . . . . . . . . . . . . 142
Proper seating position
Front passenger . . . . . . . . . . . . . . . . . . . . . 131
Occupants. . . . . . . . . . . . . . . . . . . . . . . . . . 130
Rear passengers . . . . . . . . . . . . . . . . . . . . . 132
Protecting . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Q
quattro (all wheel drive) . . . . . . . . . . . . . . . . 124
Selective wheel torque control . . . . . . . . . 120
Question What happens to unbelted occupants? 139
R
Radio Standards Specification (RSS) . . . . . . 258
Rail carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Rain/light sensor Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 18
Intermittent (windshield wipers) . . . . . . . . 45
Raising the vehicle . . . . . . . . . . . . . . . . . . . . 251
Range (fuel level) . . . . . . . . . . . . . . . . . . . . . . 21