2021 AUDI Q8 low oil pressure

Quick access

Air suspension
=> page 113
Electrical system
=> page 251
Engine oil level (MIN)
=> page 245
Engine oil pressure
=>page 245
Cooling system
=> page 248
Hood
=> page 243
Loose wheel warning
=> page 272
Night vision assist
=> page 132
Night vision assist
=> page 132
Distance warning
=> page 146
Steering intervention request
=> page 141
Safe start monitor
=> page 144,
Driver intervention request
=>page 145
Adaptive cruise assist
=> page 138
Lane departure warning
=> page 148,
Emergency assist
=>page 157
Audi pre sense
= page 150,
Intersection assist
=> page 157


Yellow indicator lights

Central indicator light
=> page 7


Safety systems
=> page 72

































Transmission
=> page 101
Drive system
=> page 103
Cooling system
=> page 248
Engine start system
=> page 96
Keys
=> page 96
Electromechanical parking brake
=> page 107
Brake system
=>page 105
Electronic Stabilization Control
(ESC)
=>page 116
Electronic Stabilization Control
(ESC)
=>page 116
Electronic Stabilization Control
(ESC)
=>page 116
Anti-lock braking system (ABS)
=>page 117
Anti-lock braking system (ABS)
=> page 117
Steering
>page 114
Steering lock
=> page 114
All wheel drive
=>page 115
Suspension control
=> page 113
Air suspension
= page 113
Active roll stabilization
=> page 113
Engine speed limitation
=> page 14
Tank system
=> page 239

4M8012721BF

Quick access

Electrical system
=> page 251
Engine oil level (MIN)
=>page 245
Engine oil level (MAX)
=> page 245
Engine oil sensor
=>page 245
Malfunction Indicator Lamp (MIL)
> page 241,
Engine warm-up request
=> page 245
Washer fluid level
=> page 254
Windshield wipers
=> page 60
Parking systems
=> page 161
Park assist plus
=> page 173
Maneuver assist
=> page 180
Tire pressure
=> page 274, > page 276
Tire pressure
=> page 274, > page 276
Loose wheel warning
=> page 272
Bulb failure indicator
=> page 54
Adaptive light
=> page 54
Light/rain sensor
=> page 54, > page 60
Door lock
=> page 37
Battery in vehicle key
> page 41
Night vision assist
=> page 132
Intersection assist
>page 157












Side assist
=> page 155;
Exit warning
=page 155
Rear cross-traffic assist
=> page 166
Adaptive cruise assist
=>page 146
Steering intervention request
=> page 141, > page 148
Lane departure warning
=>page 149
Distance warning
=> page 146
Audi pre sense
=> page 153
Emergency assist
=>page 157
Emergency call function
=>page 198
Other
indicator lights
Rear safety belt
=> page 70
Start/Stop system
= page 103
Hill hold assist
= page 109
Low beam headlights
=> page 51
Parking lights
=> page 51
Turn signals
=> page 52, > page 53
Cruise control system
=> page 134
Cruise control system
=> page 134
Efficiency assist
=>page 135
Efficiency assist
=>page 135 >

4M8012721BF
Instrument cluster

The trip odometer shows the distance driven
since it was last reset. It can be used to measure
short distances. The odometer shows the total
distance that the vehicle has been driven.
Resetting the trip odometer
> Select on the instrument cluster: vehicle func-
tions tab > | button > Reset mi.
@) Tips
Distances are displayed in mi (miles) or km
(kilometers).
Outside temperature
display
The outside temperature is displayed in the sta-
tus bar ©) > page 12.
If your vehicle is stationary or if you are driving at
very low speeds, the temperature displayed in
the instrument cluster may be slightly higher
than the actual temperature outside due to heat
radiating from the engine.
At temperatures below 41 °F (+5 °C), a snowflake
symbol appears in front of the temperature dis-
play > A\.

ZA\ WARNING
Do not assume the roads are free of ice based
on the outside temperature display. Be aware
that there may be ice on roads even when the
outside temperature is around 41 °F (+5 °C)
and that ice can increase the risk of accidents.

Engine oil temperature
indicator
Depending on the vehicle equipment, the engine
oil temperature 7 may be indicated by a bar in
the instrument cluster.
> Open the vehicle functions tab and switch to
the enhanced view > page 13.
When engine oil temperatures are low, the dis-
play --- °F (--- °C) appears in the instrument clus-
ter. The engine has reached its operating temper-
ature when the engine oil temperature is be-
tween 176 °F (80 °C) and 248 °F (120 °C) under
normal driving conditions. The engine oil temper-
ature may be higher if there is heavy engine load
and high temperatures outside. This is not a
cause for concern as long as the E or = indica-
tor lights do not turn on.
Boost indicator
Applies to: vehicles with boost indicator
Depending on vehicle equipment, the current en-
gine load (meaning the current boost pressure)
may be indicated by a bar in the instrument clus-
ter.
> Open the vehicle functions tab and switch to
the enhanced view > page 13.
Shift light indicator
Applies to: RS models
The shift light indicator informs the driver when
the RPM limit is reached.
> Select the RS Performance or RS Runway lay-
out if necessary > page 13.
The shift light indicator is displayed with green,
yellow and red ranges in the upper areas of the
tachometer. The shift light indicator will blink red
when approaching the engine speed limit. Shift
to the next highest gear at the right time.
Sport displays
Applies to: RS models
Various sport displays, such as a G meter or tire
pressure indicator, may be available depending
on vehicle equipment.
Opening sport displays in the instrument
cluster
> Select in the instrument cluster: Vehicle func-
tions tab > =| button > Sport displays.
> Turn the left thumbwheel on the multifunction
steering wheel until the desired sport display
appears in the instrument cluster.
Opening sport displays in the MMI
> Applies to MMI: Select on the home screen: VE-
HICLE > RS monitor.
15
>

Instrument cluster

> Browse to the desired display if necessary.
G meter
The G meter displays the longitudinal and lateral
acceleration. The current values are displayed in
the instrument cluster while driving. The maxi-
mum values that are reached are stored and dis-
played when the vehicle is stationary. Only the
maximum values that are reached are displayed
in the MMI.
> To reset the stored values, press and hold the
left thumbwheel on the multifunction steering
wheel for one second.
Tire pressure
The tire pressure monitoring system displays the
current tire pressures and temperatures. Also see
= page 276, Tire pressure monitoring system.
Engine data
The engine data in the instrument cluster shows
which percentage of the maximum output or
maximum torque is currently being used.
Temperature
The temperature display in the MMI shows the
temperature of various fluids and vehicle compo-
nents, such as the engine oil or sport differential.
Inclinometer
The inclinometer in the MMI shows the sideways
and lengthwise angle of the vehicle in relation to
the horizon. It shows both the current values and
the maximum values that were reached
=> page 108.
Vehicle functions
LO TaV TN]
The trip computer is displayed in the first tab of
the driver information system. Additional vehicle
functions can be accessed depending on the vehi-
cle equipment.
> Press the =] button on the multifunction steer-
ing wheel.
— Trip computer > page 16
— Reduced display > page 14
16
— Reset trip odometer > page 14
— Sport displays > page 15
—Lap times > page 129
— Lap statistics > page 130
— Acceleration measurement > page 130
On-board computer
Resetting values to zero
Requirement: the Consumption, Short-term
memory, or Long-term memory display must be
selected.
> To reset the values in one of the memories to
zero, press and hold the left thumbwheel on
the multifunction steering wheel for one sec-
ond, or
> Select on the instrument cluster: vehicle func-
tions tab > I button > Reset mi.
Depending on the vehicle equipment, you can call
up the following displays in the on-board com-
puter one at a time by turning the left thumb-
wheel on the multifunction steering wheel:
— Time and date > page 233
— Average consumption > page 16
— Short-term memory overview
— Long-term memory overview
— Energy consumers > page 17
— Driver assistance
— Traffic sign recognition and traffic light infor-
mation
Short-term memory and long-term memory
The short-term memory collects driving informa-
tion from the time the ignition is switched on un-
til it is switched off. If you continue driving within
two hours after switching the ignition off, the
new values will be included when calculating the
current trip information.
Unlike the short-term memory, the long-term
memory is not erased automatically. You can se-
lect the time period for evaluating trip informa-
tion yourself.
Average consumption
The current consumption can be shown using a
bar graph. The average consumption stored in >

Driving

— Make sure the vehicle is in good condition.
Make sure to check the brake pads, tire tread,
and tire pressure (when tires are warm).
— Beforehand, warm up the engine by driving no
higher than two-thirds of the maximum permit-
ted engine RPM. The engine oil must be
brought to a minimum temperature of 158 °F
(70°C).
— Before stopping the vehicle, allow the engine
and brakes to cool back down to a regular oper-
ating temperature by driving normally.
If necessary, use the following functions:
— dynamic Audi drive select mode* > page 111
— Limit ESC > page 116
@) Tips
Wear caused by load does not constitute a ve-
hicle fault as defined by the terms of the war-
ranty.
Driving uphill and downhill
When driving uphill, downhill, or at high alti-
tudes, note the following information:
— Drive slowly and carefully.
— Do not try to turn around if you cannot safely
drive on an incline or hill. Instead, drive in re-
verse.
— When driving down hills, you can activate the
hill descent control if you press the brake pedal
while driving in “D” gear. The automatic trans-
mission will select a gear suitable for driving
down the hill and will attempt to maintain the
speed at which the vehicle was traveling at the
time the brake pedal was pressed. Press the
brake pedal if necessary. The hill descent con-
trol will switch off once the hill levels out or
you press the accelerator pedal.
— Utilize the engine braking effect when driving
downhill by selecting the “S” driving program
=> page 98. This especially applies when towing
a trailer. This reduces the load on the brakes.
— Apply the brakes in intervals and do not press
the brake pedal continuously.
— Use the hill descent assist if necessary
=> page 109
108
Inclinometer
Applies to: vehicles with a tilt angle display
You can display the vehicle's sideways angle and
lengthwise angle in relation to the horizon.
— Applies to: MMI: Select on the home screen:
VEHICLE > Vehicle data.
— You may need to scroll down to the Inclinome-
ter display.
The sideways angle of your vehicle should not ex-
ceed the yellow range in the gauge. If it reaches
the red range, there is a risk that the vehicle
might tip.
The steering wheel angle, the elevation, the com-
pass direction, and the geo-coordinates of the
current vehicle position are displayed in addition
to the current vehicle angle. You will also receive
information about the maximum sideways and
lengthwise angle that was reached in the current
driving cycle. These values are reset when the ig-
nition is switched off.
Note that the accuracy of the display depends on
the driving situation.

ZA\ WARNING
— Only drive on inclines that your vehicle is de-
signed to handle. Do not exceed the hill
climbing ability of your vehicle. Your vehicle
could tip or slide.
— Do not drive at an angle on steep inclines
and hills. If your vehicle is about to tip, you
must immediately start steering in the di-
rection of the downward slope to reduce the
risk of an accident.
— Always be ready to brake when using the hill
descent control function.
— Applies to: vehicles with an inclinometer: Do
not rely only on the inclinometer when as-
sessing the driving situation.
ier A dials)
Your vehicle is not an offroad vehicle. Note the
following points when driving offroad:

— Drive slowly and carefully.
—To reduce the risk of underbody damage, pay
attention to the vehicle's ground clearance and >

Checking and Filling

Engine compartment
erreur lela)
Special care is required if you are working in the
engine compartment
For work in the engine compartment, such as
checking and filling fluids, there is a risk of in-
jury, scalding, accidents, and burns. For this
reason, follow all the warnings and general
safety precautions provided in the following in-
formation. The engine compartment is a dan-
gerous area in the vehicle. > A.
Explanation of warnings (sticker in the engine
compartment):

Hot engine components!
@ Rotating parts!

The radiator fan can switch on at any
LR, time!


High voltage! Switch off the engine be-
fore coming into contact with any igni-
tion system components!

The catalytic converter can be damaged
"277 if the oil level is too high!

Always follow the instructions in the op-
oy erating manual.


ZA WARNING
— Turn the engine off.
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Allow the engine to cool.
— Keep children away from the engine com-
partment.
— Never spill fluids on a hot engine. These flu-
ids (such as the freeze protection contained
in the coolant) can catch fire.
— Avoid short circuits in the electrical system.
— Never reach into the radiator fan. The fan is
temperature-controlled and can turn on
suddenly, even when the ignition is switched
off.
— Never open the hood when there is steam or
coolant escaping from the engine compart-

ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
— The cap on the coolant expansion tank must
never be opened when the coolant is hot.
The cooling system is under pressure. There
is a risk of burns
—To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
thick cloth when opening.
— Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
— Due to the risk of electric shock, never touch
the ignition cable or other components in
the electronic high-voltage ignition system
when the engine is running or is starting.
— If a gear is engaged while the vehicle is sta-
tionary and the engine is running, do not
press the accelerator pedal inadvertently.
Pressing the accelerator pedal will cause the
vehicle to move, and this could result in an
accident.
— If inspections or repairs must be performed
while the engine is running, moving compo-
nents (such as the ribbed belt, generator,
and radiator fan) pose an additional risk.
— Set the parking brake first and select the
“p” (Park) selector lever position.
— Always make sure that no parts of the
body, jewelry, ties, loose clothing, and
long hair can be caught in moving engine
components. Before any work, always re-
move any jewelry and/or ties, tie back long
hair, and make sure all clothing fits close
to the body to reduce the risk of anything
becoming caught in engine components.
— Pay attention to the following warnings list-
ed when work on the fuel system or on the
electrical equipment is required.
— Do not smoke.
— Never work near open flames.
— Always have a working fire extinguisher
nearby.
— All work on the battery or electrical system
in your vehicle can result in injuries, chemi-
cal burns, accidents, or burns. Because of
this, all work must be performed only by an

242

4M8012721BF
Checking and Filling

Engine oil
If the engine oil level is too low
If you need to add engine oil, use an oil that is
listed on the sticker. The sticker is located at the
front of the engine compartment > page 244,
fig. 159. When using the engine oil listed on the
sticker, you can adjust the oil level as often as
needed.
If engine oil that meets the recommended speci-
fication is not available, in an emergency you
may add a maximum of 1 quart (1 liter) of
ACEA C3 or API SN engine oil one time until the
next oil change.
For more information on the correct engine oil
for your vehicle, contact an authorized Audi deal-
er or authorized Audi Service Facility. Have the oil
changed by an authorized Audi dealer or author-
ized Service Facility.
G) Tips
Audi recommends using engine oils provided
by Audi Genuine Parts.
Messages
Engine oil pressure
2 Turn off engine. Oil pressure too low
Stop driving and switch the engine off. Check the
engine oil level > page 246.
— If the engine oil level is too low, add engine oil
=> page 247. Only continue driving once the in-
dicator light turns off.
— If the engine oil level is correct and the indica-
tor light still turns on, turn the engine off and
do not continue driving. See an authorized Audi
dealer or authorized Audi Service Facility for as-
sistance.
Engine oil level
E Please add oil immediately.
Stop driving and switch the engine off. Check the
engine oil level > page 246 and add engine oil
immediately > page 247.
Eada max. x qt (x l) oil. You can continue
driving
Add the amount of oil shown immediately
=> page 247.
Reducing the oil level
=) Please reduce oil level
There is too much oil in the engine and there is a
risk of damaging the catalytic converter or en-
gine. Drive to an authorized Audi dealer or au-
thorized Audi Service Facility immediately to have
engine oil extracted if necessary. Avoid high en-
gine speeds, full acceleration, and heavy engine
loads.
Engine oil sensor
& Oil level sensor: oil change necessary. Please
contact Service
Fuel has entered the engine oil. This will cause
the engine oil level to rise slowly and the engine
oil quality to decrease. Do not extract engine oil
to reduce the level, because this will increase the
risk of engine damage. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately to have engine oil extracted.
Bs Oil level system: malfunction! Please con-
tact Service
The sensor that checks the engine oil level has
malfunctioned. Drive immediately to an author-
ized Audi dealer or authorized Audi Service Facili-
ty to have the malfunction repaired.
& Oil pressure sensor: malfunction! Please
contact Service
The sensor that checks the engine oil pressure
has malfunctioned. Drive immediately to an au-
thorized Audi dealer or authorized Audi Service
Facility to have the malfunction repaired.
Engine warm-up request
i Please drive to warm up engine
Fuel has entered the engine oil, either due to low
outside temperatures or frequent short drives.
Drive until the engine is warm so that the fuel in
the engine oil will evaporate. Avoid high engine
245
>

Checking and Filling

speeds, full accelerating, and heavy engine loads
when doing this.
@) Tips
The oil pressure warning = is not an oil level
indicator. Always check the oil level regularly.
Checking the engine oil level
The engine oil level can be checked in the MMI.
Observe the safety precautions > page 242, Gen-
eral information.
>» Park the vehicle on a level surface.
> Shut the engine off when it is warm.
> Switch only the ignition back on.
> Wait approximately two minutes.
> Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Oil level.
> Read the oil level in the display. Add engine oil
if the bar in the oil level indicator is just below
“min” > page 247.
@) Note
If the engine oil level is too low or too high,
there is a risk of engine damage.
G) Tips
The oil level indicator in the display is only an
informational display. If the oil level is too
low, a minimum oil warning appears in the in-
strument cluster. Add oil and close the hood.
The current oil level will be displayed on the
MMI the next time the ignition is switched on.
@) Tips
The engine oil consumption may be up to
0.5 quart/600 miles (0.5 liter/1,000 km), de-
pending on driving style and operating condi-
tions. In RS models, the oil consumption may
be up to 1 qt/600 mi (0.8 L/1,000 km). Con-
sumption may be higher during the first
3,000 miles (5,000 km). The engine oil level
must be checked regularly. It is best to check
each time you refuel your vehicle and before
long drives.
— Because of the Lubrication and cooling of
the engine, combustion engines consume
246
oil. The oil consumption varies depending
on the engine and may change during the
service life of the engine. Engines generally
consume more oil at the beginning during
the break-in period. Then oil consumption
stabilizes after the break-in period.
Under normal conditions, oil consumption
depends on the quality and viscosity of the
oil, the engine RPM, the climate conditions,
and the road conditions. The dilution of oil
from condensation or fuel residue as well as
the age of the oil also play a role. Because
engine wear increases with mileage, oil con-
sumption will increase again over time until
it may be necessary to replace worn compo-
nents.
Because all these variables play a role, it is
not possible to define an oil consumption
standard. Therefore, the oil level must be
checked regularly.
If you believe that your engine has in-
creased its oil consumption, contact an au-
thorized Audi dealer or authorized Audi
Service Facility to determine the cause.
Please note that an exact oil consumption
measurement must be done with the neces-
sary care and accuracy and may take time.
An authorized Audi dealer or authorized
Audi Service Facility is trained in accurately
measuring the oil consumption.
You can find information on engine oil and
engine oil capacities for the USA at www.
audiusa.com/help/maintenance, or for Can-
ada at www.audi.ca/ca/web/en/
customer-area/care-and-maintenance/
audi-service-schedules.html, or call
800-822-2834.