2015 AUDI A7 oil pressure

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tire failure and loss of
control.
-Excessive speed and/over­ loading can cause heat
build -up, sudden tire failure
and loss of control.
-If the tire pressure is too low or too high, the tires
will wear prematurely and
the vehicle will not handle
well.
-If the tire is not flat and you do not have to change a
wheel immediately, drive at
reduced speed to the near­
est service station to check
the tire pressure and add air as required.
(D Note
Driving without valve stem
caps can cause damage to
the tire valves. To prevent
this, always make sure that
factory installed valve stem caps on all wheels are secure­
ly mounted on the valve.
@ For the sake of the environment
Underinflated tires will also
increase the fuel consump­
tion.
Tires and wheels 255
Tires and vehicle load limits
'
There are limits to the amount of load or weight that any vehi­
cle and any tire can carry. Ave­
hicle that is overloaded will not
handle well and is more diffi­
cult to stop. Overloading can
not only lead to loss of vehicle
control, but can also damage important parts of the vehicle
and can lead to sudden tire fail­
ure, including a blowout and
sudden deflation that can cause
the vehicle to crash.
Your safety and that of your passengers also depends on
making sure that load limits are
not exceeded. Vehicle load in­
cludes everybody and every­
thing in and on the vehicle .
These load limits are technical­ ly referred to as the vehicle's
Gross Vehicle Weight Rating
("GVWR").
The "GVWR" includes the
weight of the basic vehicle, all
factory installed accessories, a
full tank of fuel, oil, coolant and other fluids plus maximum ""
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Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of wheel bolts is matched to the
factory installed r ims. If differen t rims are fit­
ted, the correct wheel bolts with the right l ength and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bo lts from a different vehicle -eve n if it
i s the same model
~ page 296.
_&. WARNING
Improperly tig htened or maintained whee l
bolts can become loose ca using loss of
contro l, a co llision and serious persona l in­
jury.
- Always keep the wheel bolts and the threads in the wheel hubs clean so the
whee l bolts can turn easily and be prop­
erly t ightened.
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can become loose wh ile driving if greased or
o iled, even if tightened to the specif ied
torque .
- Only use wheel bolts that belong to the
rim being installed.
- Never use different whee ls bolts on your
vehicle .
-Always maintain the correct tighten ing
torque for the wheel bo lts to reduce the
risk of a wheel loss . If the tightening tor ­
que of the wheel bolts is too low, they
can loosen and come out when the vehi­
cl e is moving.
If the tightening torque is
too high, the whee l bolts and threads
can be damaged and the wheel can be­
come loose.
Q;) Note
The spec ified torque fo r the wheel bo lts is
90 ft lb (120 Nm) w ith a toleran ce of± 7,4
ft lb(± 10 Nm). Torque wheel bo lts diago-
Tire s an d wheel s 269
nally . After changing a whee l, the torq ue
must be checked as soon as possible with a
torque wrench -preferably by an author­
i zed Audi dealer or qualif ied workshop.
Low aspect ratio tires
Your Audi is factory-equ ipped w ith low aspect
ratio tires . These tires have been thoroughly
tested and been selected specifically for your model for their superb perfo rmance, road fee l
and hand ling u nder a variety of driving condi­
tions . Ask your au thorized Aud i dealer for
more details .
T he low aspect ratio of these t ires is ind icated
by a numera l of
55 or l ess in the tire's si ze
designation. The n umera l represents the ra tio
of the ti re's sidewall height in relation to its
tread width expressed in percentage . Conven­
tiona l tires have a height/width ratio of 60 or
more.
The perform ance o f low-a spe ct-r atio tire s is
p ar ticul arl y s ens it iv e to imp ro per infl ation
pressur e. It is t herefo re im porta nt t hat low
a spect ratio t ires are inflat ed to the specified
pr essure and that the inflation pressure is
r e gularly checked and ma int ained. Tire pr es­
s ure s should be check ed at lea st on ce a
month and alwa ys befor e a long trip
~ page 252 , Checking tire pressure.
What you c an do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w it h potholes, curbs, gull ies
o r r idges on the road, pa rtic ularly if the tire is
u nder infla ted .
In order to minimize the occurrence of impact
damage to the tires of your vehicle, we recom­
mend that you observe the following p re ca u­
tions:
- Always ma inta in recommended inflation
p ressures . Check your tire pressu re eve ry
2 ,000 miles (3,000 km) and add air if neces­
sary .
- Dr ive caref ully on roads wi th potholes , deep
gullies o r ridges. The impact from driv ing ..,. •
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282 Fuses and bulbs
No . Equipment Amps
4 Suspension control system sen-
5
sor
5 Electron
ic Stabilization Control
5
(ESC) mod ule
6 Climate
control
5
7 Adaptive cruise control 10
8
Airbag control module, front
5
passenger's seat sensor system
9 Gateway 5
Garage door opener (Homelink),
10 night vision system contro l 5
module
11 Image processing (active
lane
10
ass ist, adaptive cruise control)
12 Dynamic steering 5
13 Terminal 15
in the instrument
15
panel
14 T
ermina l 15 in the luggage com-
partment 30
15 T
erminal 15 (engine)
15
16 Starter 40
Fuse panel @ (brown)
No . Equipment Amps
1 Gateway
5
2 Climate control 10
E lec tronic Stabilization Contro l
10
3
(ESC) module
4 Front door (driver's
side)
30
5 Power seat adjustment (driver's
7,5
seat)
6 Dynamic steering
35
7 Su nroof 20
Rear door control module (driv- 15
8
er's side)
9 Lumbar support (Front passen-
5
ger seat)
10 Tire pressure monitoring system
5
11 Su
nroof, rear spoiler (Sportbac k)
20
12 Driver door
control module
15
Fuse panel© (red)
No . Equipment
2 Fuel pump
3 Brake light sensor/brake pedal
sensor system
4 AdBlue control module (Diesel)/
Engine acoustics
5 Left rear door contro l modu le
6 Power
seat adjustment (pas-
senger's seat)
7 Horn
8 Windshield wiper motor
9
Light/rain sensor, heater for vid-
eo camera in windscreen
10 Lumbar support (dr iver seat)
11 Front
passenger door control
module
12 Right rear door control mod ule
Front passenger side cockpit fuse
assignment Amps
25
5/5
5/7,5 30
7,5 15
30
5
5
15
15
Fig. 220 Front passenger side cockpit: fu se pane l w ith
plastic bracket
Fuse panel @ (black)
No. Equipment Amps
1 Head-up Display
5
2 MMI Display 5
3 CD/DVD changer
5
4 MMI unit/dr ives 7,5
5 Chip card reader (not
in all coun-
5
tries)
6 Instrument cluster
5
7 Steering column switch module 5