ECO mode AUDI A8 2018 Owners Manual

Cockpit overv ie w
CD
@
®
©
®
®
Door hand le
S ide assist d isp lay
Cent ral lock ing switch ....... .. .
Side assist button .. ..... ... .. .
A ir vents w ith thumbwheel
L ever fo r:
- Turn signals and h igh beams
- High beam assistant ... ... .. .
- Active lane assist . ..... ... .. .
(J) Multifunction steering wheel with :
- Horn
- Drive r's airbag ............. .
- Drive r informat io n system con -
trols .. .. .. ............... .
- Audio/v ideo, telephone, naviga­
t ion and voice recognition con -
t rols .. .. .. ............... .
- Shift paddles
and ~ button for
manual shifting ............ .
@ Ins trumen t cluster . ..... ... .. .
® W indshield washer system lever
@ H ead-up display ........... .. .
@ Buttons/ indicator light for :
- Start/Stop system .......... .
- Extending/retract ing t he Info-
ta inment system display . .. .. .
- E lectron ic Stabili zation Contro l
(ESC) .. .. .. ............. .. .
- Emergency flashers ....... .. .
@ Starting the eng ine if there is a
malfunct ion
@ Knee airbag
~ Buttons for :
- Stee ring wheel adjustmen t ... .
- Stee ring wheel heat ing
@ Lever for:
- Cru ise control system ....... .
- Adaptive cruise control .... .. .
@ Butto n for sw itch ing the head- up
d isp lay on/off , adjust ing t he
h e igh t .. .. .. ............. .. .
8
105
3 1
105
44
44
103
23 1
1 2
11
86
9
so
1 6
78
136
128
46
78
24 1
75
7 2
93
95
1 6
@ Instr ument i llumination .. ..... .
@ Hood release .. .. .. .......... .
@ Data lin k co nne ctor fo r On-Board
Di agnos tic Sys tem (OB D II) .....
@ Light sw itch
@ Buttons for:
- All -weather lights
- Night v is ion assis t .......... .
- Rea r fog lights . .. .......... .
@ Exterior mi rror adjustment .... .
@ Switch for luggage compartment
l id ........ ... .. .. .......... .
@ B uttons for:
- Powe r windows .. .......... .
- Ch ild safety lock . .... .. ..... .
@ Memory funct io n buttons ...... .
@) Infotainment system d isplay
@ B uttons/indicator light for:
- PA SSE NG ER AIR BAG OFF .... .
- Park ing system ... .......... .
- Power sunshade (rear blind) .. .
@ Glove comp artment .......... .
@) Front passenger's airbag ...... .
@ Valet Park ing funct ion ........ .
@ Analog cloc k .... .. ... .. ..... .
@ Climate contro l system ........ .
@ Infota inment system u nit ..... .
@ Se lector lever (automatic transmis -
s ion) ... .. .. .. .. .. .......... .
@ Center conso le w ith cup holder ..
@ Buttons for:
- Electromechan ica l park ing bra ke
@ I START EN GINE STO P! button
(D Tips
43,47
272
25
43
109
43
47
33
37
36 59
136
23 7
115
49
64
231
40
16
70
135
83 63
81
76
Some the equipment l isted here is only instal ­
l ed i n certa in models or is available as a n op­
tion.

lL t:0 ....
"' " "' .... 0 0 :c ' Efficiency program
Applies to: ve hicles with effic ie n cy program
Fig. 9 Instrument cluster : en ergy consumers
Fig. 10 Inst rument cluster: economy t ip
The efficiency program can help you to use less
fuel. It shows other consumers that are us ing
fuel and economy tips give advice on how to drive
efficiently. The efficiency prog ram receives dis­
tance and cons umption data from the on-board
computer.
To disp lay the efficiency program, open the
Vehi­
cl e fun cti ons
menu and se lect the Efficien cy pr o­
gram
menu item .
Other consum ers
The Energ y con sum ers view lists other equip­
ment that is currently affecting fuel consump­
tion. The display shows up to three other equip­
ment items
@ c:::> fig. 9. The equipment using the
most power is listed first. If more than three
items using power are sw itched on, the equip­
ment that is currently using the most power is
displayed.
A gauge @also shows the current total con­
sumpt ion of all other consumers.
Coc kpit o verview
E conom y tips
In certain situations, economy tips appear auto­
matically for a short time in the efficiency pro­
gram
c:::> fig. 10 . If you follow these economy tips,
yo u can reduce your vehicle's fuel consumption.
T o turn an economy tip off immediately after it
appea rs, press any button on the mu ltifunction
steering wheel.
(D Tips
- If
you erase the data in the eff icien cy pro­
gram, the va lues in the on-board computer
w ill also be reset.
- Once yo u have turned an economy tip off, it
will only appear again after you turn the ig­
nition on again.
- T he economy tips are not disp layed in
every
instance, but rather in interva ls over a peri­
od of time .
Radio
Applies to: vehicles wit h mult ifu nction stee rin g w hee l
Fig . 11 Radio me nu
Requirement: radio mode must be started
c:::> page 178 and the radio/media tab must be
displayed.
.,. Press the ~ button on the multifunction steer­
ing wheel.
- Sele cting the fr equenc y band : select and con­
fi rm a frequency band.
- Select ing a sta tion from th e statio n list: select
and confirm a radio station.
- Sel ect ing a stat ion fr om th e pre set s l is t : select
and confirm
Pre sets and then select a radio sta­
tion .
13

lL t:0 ....
"' ......
"' .... 0 0 :c - Sliding/tilting sunroof emergency closing
Applies to: vehicles with sliding/tilting sunroof
If the sunroof detects an object in its path when
it is clos ing, it w ill open again automatically. In
this case, you can close the roof w ith the power
emergency closing function.
.. Within five seconds after the sunroof opens au­
tomat ically, pull the switch unt il the roof
closes.
Panorama glass roof
Opening/closing the roof
Applies to: vehicles with panorama glass roof
Fig. 39 Sect io n of the front headliner: pa norama g lass roof
b utton
Fig. 40 Rear door : panorama g lass roof bu tto n
@ Tilting the front segment of the roof
.. To tilt the sunroof completely, press the~
button up briefly to the second level.
.. To close the sunroof comp letely, pull the la.I
button down briefly to the second level¢ ,&.
.. To set a pos ition between opened and closed,
press/pull the
la.I button up to the first level
until the desired position is reached.
Opening and closing
@ Sliding the front segment of the roof
.. To open the sunroof completely, slide the but­
ton~ toward the rear briefly to the second lev ­
el.
.. To close the sunroof completely, slide the ~
button forward briefly to the second level
¢ &_ .
.. To select a partially open position, slide the~
button forward/back to the first level until the
desired posit ion is reached .
Tilting the rear segment of the roof
The rear segment of the roof can be operated
both from the cockpit and from the rear seat .
.. To tilt the sunroof completely, press the l""'I
button in the rear door briefly to the second
level ¢ fig. 40 .
.. To close the sunroof completely, pull the ~
button up briefly to the second level c> A_ .
.. To set a position between opened and closed,
press/pu ll
the~ button up to the first level
until the des ired posit ion is reached . O r
.. To operate the roof from the cockpit, press the
!REAR MODE !button ¢ fig. 39. Yo u can now
open/close the rear segment of the roof using
the~ button in the headliner. The LED in the
front of the headliner turns on when the rear
roof segment is tilted.
You can sti ll operate the panorama glass roof for
about 10 minutes after the ignition is switched
off. The switch is deactivated once the driver's or
front passenger's door is opened .
A WARNING ,_
Be careful when closing the panorama glass
roof
-otherw ise serious injury could result!
Sw itch off the ignition when ex iting the veh i­
cle .
(D Note
Always close the panorama glass roof when
leaving your vehicle . Rain can cause damage
to the interior equipment of your vehicle, par-
ticularly the electron ic equ ipment.
.,..
39

Opening and clo sin g
@ Tips
- The panorama roof will on ly open down to
·4°F (·20°).
- To prevent both roof segments from co llid ·
ing with one another, you do not need to
- tilt the rear roof segment if the front roof
segment is already open.
- close the front roof segment if the rear
roof segment is already tilted.
Opening/closing the sunshade
Applies to: vehicles w ith panorama glass roof
© Front sunshade
.,. To open the sunshade completely, slide the G;J
button back to the second level ¢ page 39,
fig. 39 .
.,. T o close the sunshade comp lete ly, sl ide the G;J
swi tch forward briefly to the second level.
.. To se lect a pa rtially open position, slide the l:c.i.l
button to the first level until the sunshade has
reached the desired position.
© Rear sunshade
.,. T o open the sunshade comp lete ly, press the~
button in the rear door briefly down to the sec­
ond leve l¢
page 39, fig . 40.
.. To close the sunshade comp lete ly, pull the ~
button up to the second level ¢,& .
.,. To se lect a partially open position, press/pull
the
G;J button to the f irst level until the desired
pos ition is reached. Or
.. To ope rate the sunshade from the cockpit,
press the
I REAR MODEi b utton 9 page 39,
fig. 39.
You can now open/close the rear su n­
shade using
th e~ button in the headliner.
A WARNING
Be careful when closing the panorama g lass
roof
-otherwise serious injury could result!
Switch off the ignition when exiting the vehi­
cle.
40
Roof segments/sunshade emergency
closing
Applies to: vehicles with panorama glass roof
If the roof segment or s unshade detects an ob­
j ect in its path when it is closing, it will open
again automatically . In this case, you can then
close it w ith the power emergency closing func ­
tion.
.. Withi n five seconds after the roof segment or
sunshade opens automatically, pull t he switch
until it closes.
Valet parking function
Applies to: vehicles with valet parking function
The valet parking function protects the luggage
compartment from unauthorized access.
F ig. 4 1 Glove compartment: valet parking functio n button
You can switch the va let parking f unction on
whe n someo ne else is parking your vehicle. When
the function is switched on, the vehicle can be
driven, locked and unlocked using the master
key, but access to the luggage compartment is
not permitted.
.. Remove the integrated mechanical key
Qpoge 29 .
.. Open the glove compartment.
.,. Press the !VALET I button to switch the valet
parking function on. The LED in the button
t u rns on.
.,. Lock the glove compartment with the mechani­
cal key .
.,. O nl y give the remote cont ro l key to the se rvice
personnel parking your car and keep the
re-
moved mechanical key wit h you. ..,.

Lights and Vision
Retracting the rear door sunshades*
~ To re tract the sunshade from the driver's seat,
press the left/right rear power window switch
~ in the driver's door.
~ To retract the sunshade from the rear of the
vehicle,
press the power window switch Q;;; in
the left/right rear door.
You can adjust the settings for the rear sunshade
so the shade retracts automatically when you se­
lect the reverse gear. Select:
CAR function button
> Car systems control button > Vehicle settings
> Automatic rear blind > On. The settings are au ­
tomatically stored and assigned to the remote
control key. T he sunshade is extended again as
soon as the vehicle is traveling forward at a speed
greater than 9 mph (15 km/h) if the ignition has
not been switched off in the meantime .
&_ WARNING
Always pay careful attention when closing the
sunshades. Pinching could cause serious inju­
ries.
@ Tips
- Pressing the l~•~l button several times in a
r ow can trigger the overload protection. The
sunshade can on ly be extended/retracted
again after a brief waiting period.
- The rear window sunshade only functions
when the vehicle interior is warmer than
14°F (-10°().
Vanity mirror in the rear
Appl ies to: ve hicles w ith vanity mirro rs in th e rear
Fig. 55 Rear headl iner: vanity m irror
50
~ Press the button to fold the mirror open. The
mirror lighting turns on automatically .
~ To change the mirror's angle, move it forward/
back with your hand.
Windshield wipers
Switching the windshield wipers on
Fig . 56 Windsh ield w iper lever
Move the windshield w iper lever to the corre­
sponding posit ion:
@ -Windshield wipers off
G)-Rain sensor mode. The windshield wipers
switch on once the vehicle speed exceeds approx­
imately 2 mph (4 km/h) and it is raining. The
higher the sensitivity of the rain sensor that is set
(switch @to the right), the earlier the wind­
shield wipers react to mo isture on the wind­
shield. You can deact ivate the rain sensor mode
i n the Infotainment system, which sw itches the
i ntermittent mode on. Se lect:
ICARI function but­
ton
> Car systems control button > Driver assis·
tance
> Rain sensor> Off. In intermittent mode,
you can adjust the interval time using the switch
@.
@ -Slow wiping
@ -Fast w iping
@ -Single wipe. If you hold the lever in this posi­
tion longer, the wipers switch from slow wiping
to fast wiping.
®-Clean the windshield. The wipers wipe one
time after several seconds of driving to remove
water droplets. You can sw itch this function off
by moving the lever to posit ion ® within
10 sec­
onds of the afterwipe . The afterwipe function is
IJII>

Seats and storage
(D Note
Beverage containers in the cup holders should
always have a lid. If not, beverages could spill
and cause damage to vehicle equipment, such
electronics or seat covers.
Cooled glove compartment
The cooled glove compartment only functions
when the A/C system is switched on.
Fig. 77 Glove compar tment: switching cooling mode on/
off
.. Turn the knob @counter-clockwise to switch
the cooling on. The symbols on the knob indi­
cate the correct position.
.. Turn the knob @clockwise to switch the cool-
ing off .
The glove compartment cooling mode only func­
tions when the vehicle A/C system is switched on.
If the heating is switched on, switching the glove
compartment cooling mode off is recommended.
A WARNING
-
Always leave the lid on the glove compart­
ment cover closed while driving to reduce the
risk of injury.
(D Tips
The glove compartment can be locked using
the mechanical key.
Additional storage compartments
You will find a range of storage compartments
and hold ers at different locations in the vehicle.
- Compartments in the doors
64
- Net in the front passenger footwell
- Glasses holder in the headliner (near the rear-
view mirror)
- Storage compartments under the center arm­
rest
- Compartments* on the backrests of the front
seats
- Garment hooks above the rear doors
- Compartment behind the rear center armrest
(on vehicles without a pass-through* or refrig­
erator*)
- Cell phone holder* in the right rear door
- Bag hooks* in the luggage compartment
A WARNING
-When driving, do not leave any hard objects
on the rear window shelf or allow your pet
to sit on the shelf. They could become a haz­
ard for vehicle occupants in the event of
sudden braking or a crash.
- Any articles of clothing that you have hung
up must not interfere with the driver's view .
The coat hooks are designed only for light­
weight clothing. Never hang any clothing
with hard, pointed or heavy objects in the
pockets on the coat hooks. During sudden
braking or in an accident
-especially if the
airbag is deployed
-these objects could in­
jure any passengers inside the vehicle .
- To reduce the risk of personal injury in an
accident or sudden stop, always keep the
glove compartment closed while driving.
- Read and follow all WARNINGS
~ page 245, Important safety instructions
on the side airbag system.
- Hang clothes in such a way that they do not
impair the driver's vision.
- The coat hooks must only be used for light­
weight clothing. Do not leave any heavy or
sharp edged objects in the pockets which
may interfere with the side curtain airbag
deployment and can cause personal injury in
a crash.
- Do not use coat hangers for hanging cloth­
ing on the coat hooks as this can interfere
with proper deployment of the side curtain
airbags in an accident.

u. co .... N
" N .... 0 0 :c ' Warm and cold Deluxe automatic
climate control
Description
The climate control system warms, cools and re ­
moves humidity from the air in the vehicle interi­
or. It is the most effective when the windows and
sunroof* are closed. If there is a build-up of heat inside the vehicle, ventilation can help to speed
up the cooling process .
In all heating mode functions, except for defrost,
the blower only switches to a higher speed once
the engine coolant has reached a sufficient tem­
perature .
Pollut ant filt er
The po llutant filter removes pollutants such as
dust and pollen from the air.
Ke y r eco gnition
The climate control settings are a utomatically
stored and assigned to the remote control key
that is in use .
A WARNING
Poor visibility can lead to accidents.
- For safer driving, keep all windows free of
ice, snow and fog .
- Become familiar as quickly as possible with
the correct use and function of the climate contro l system, especially with the defrost­
ing and defogging function.
- When the temperature is below freezing,
only use the windshield washer system after
Warm and c old
the windshield has been warmed by the cli­
mate control system. The washer fluid could
freeze on the windshield and impair visibili­
ty .
@ Note
-If you suspect that the climate contro l sys­
tem is damaged, switch the system off to
prevent further damage and have it checked
by an authorized Audi dealer or authorized
Aud i Serv ice Facility.
- Repa irs to the Aud i climate control system
require special technical knowledge and
special tools . See an authorized Aud i dealer
or authorized Audi Serv ice Fac ility .
@ For the s ake of the environment
Reducing the amount of fuel used also re­
duces the amount of pollutants that enter the
a ir .
(D Tips
- To prevent interference with the heat ing
and cooling output and to prevent the win­
dows from fogging over, the a ir intake in
fro nt of t he w indshie ld must be free of ice,
snow or leaves.
- Condensat ion from the coo ling system can
dr ip and form a pudd le of water under the
veh icle . T h is is no rma l and does not mean
there is a leak .
- Th e energy management system may tem­
porarily switch off certain functions, suc h as
the seat heating* or rear window defogger .
T hese systems are avai lable again as soon
as the energy supply has been restored.
69

Warm and cold
Operation
We recommend pressing the !AUTOI button and setting the temperature to 72 °F (22 °C) .
Fig . 8 6 Cockp it con trols
F ig . 87 Re ar contro ls: 4 -zone de lu xe auto matic cl imate
con tro l
Press the bu ttons to tur n the func tions on or off .
The LED in a button will light up when the func ­
tion is sw itched on. Use the knob to adjust the
temperature, the blower speed and the a ir distri­
bution*. The driver and front passenger settings
can be adjusted separate ly.
Applies to: vehicles w ith 4-zone del uxe automatic climate
cont rol
You can adj ust the rea r left and r igh t sides using
the rea r contro ls
~ fig . 87.
IO FF ! Switching the climate control system
on /off
The IO FFI button switches the cl imate contro l
system on or off .
It also switches on whe n you
p ress the knob . The
!OFF I butto n in the rear only
sw itches the A/C system on/off in the rear of the
70
vehicle . A irflow from outside is blocked w hen the
cl imate control system is switched off.
IAIC I Switching cooling mode on and off
The air is not coo led and h umid ity is not removed
whe n coo ling mode is sw itched off . Th is can
ca use fog on the windows. The coo ling mode
swi tches off autom atically whe n there a re cold
outside temperatures.
l'-"" I Switching recirculation mode on and off
In recirculat ion mode , the air inside the vehicle is
c ir culated and filte red . Th is prevents the unfi l­
te red air outs ide t he ve hicle from en teri ng the
vehicle inte rior. Switching reci rc u lat ion mode on
whe n driving throug h a t unnel or whe n sitting in
traffic is recommended
~ & .
The !AU TO I button o r I@ F RO NT I button switches
recircu lation mode off .
IAUTO I Switching automatic mode on
Automat ic mode maintains a constant tempera ­
ture inside the vehicle. Air temperature , a irflow
and air distrib ution are controlled automatica lly .
If press and hold the button longer, 72 °F (22 °C)
will be set .
.,,.

Adjusting the temperature
Temperatures between 60 °F ( +16 ° C) and 84 °F
(+28 °C) can be set . Outside of this range,
LO or
HI will appear in the climate contro l system dis­
p lay . At both of these settings, the climate con ­
trol system runs continuously at maximum cool­
ing or heating power. There is no temperature
regulation.
~ Adjusting the amount of air
You can adjust the airf low manually to suit your
ne eds . The blower should always run at a low set ­
ting to prevent the windows from fogging and to
ensure a continuous exchange of air ins ide the
vehicle. To have the airflow regulated automat i­
cally, press the
IAUTO I button.
~ Adjusting the air distribution
You can manually se lect the vents where the air
will flow. To have the a ir distribution regu lated
automatically, press the
IAUTO I button.
Ill/ lil* Adjusting seat heating/ventilation*
Pressing the button switches the seat heating/
venti lation on at the highest setting (level 3). The
LEDs indicate the temperature level. To reduce
the temperature, press the button aga in. To
sw itch the seat heating/ventilation off, press the
button repeatedly until the LED turns off.
After 10 minutes, the seat heating/ventilation
automatically switches from level 3 to level 2.
l The windshield and side windows are defrosted
or cleared of condensation as quickly as possible.
The maximum amount of air flows main ly from
the vents below the windshield. Recirculation
mode switches off. The temperature shou ld be
set to approximately 72 °F (22 °().
The
IAUTOI button switches the defroster off .
IQil REAR I Switching the rear window defogger
on and off
The rear window defogger only operates when
~ the engine is running. It switches off automati-....
~ cally after 10 to 20 minutes, depending on the N
~ outside temperature. 0 :c ' Warm and cold
To prevent the rear window defogger from
switching off automatica lly, press and hold the
loo REAR I button for more than three seconds .
This is stored until the ignition is switched off.
I SYNC! Synchronization*
When synchron ization is switched on, the set­
tings for the driver's side are applied to the front
pass enge r's side (except for seat heating/venti la ­
tion*). The rear is also synchronized in vehicles
with the 4-zone deluxe automatic climate control
system*. Synchronization switches off if the set­
t ings are adjusted on the front passenger's side
or in the rear*.
You can synchronize the sett ings in a row by
pressing and holding a knob. For example, to ap­
ply the sett ings for the front passenger's side to
the driver's side, press and hold the knob on the
front passenger 's side.
Vents
You can open or close the center and rear vents in
the cockpit and the vents in the rear center con­
sole and door pillars using the ridged thumb­
wheels. The levers adjust the direction of the air­
flow from the vents.
Residual heat
You can act ivate the residual heat function when
the ignition is switched off by pressing and hold­
ing the
lj) button. The residual heat from the
coolant is used to heat the vehicle interior . T he
r esidua l heat function switches off automatically
after about 30 minutes .
_&. WARNING
-You should not use the recirculation mode
for an extended period of time since no
fresh air is drawn in. With the air-condition ­
ing switched off, the windows can fog up,
which increases the risk of an acc ident.
- Individuals with reduced sensitivity to pain
or temperature could develop burns when
using the seat heating function. To reduce
the r isk of injury, these individua ls should
not use seat heating .
71

Driving
Shift to P, otherwise vehicle can roll away.
Doors do not lock if lever is not in
P.
This driver message appears fo r safety reasons if
the transmission has not been shifted to the P
position when you switch the ignition off. Move
the selector lever to the P position . Otherwise the
veh icle is not protected from ro lling and it cannot
be locked.
(I Key is not recognized. Hold back of key
against marked area. See owner's manual
If the i ndicator light turns on and this message
appears, there is a
malfunction ~ page 78.
Turn off ignition before leaving car
This message appears if the driver's door is
ope ned while the ignition is switched on . Always
sw itch off the ignition if you are leavi ng the vehi­
cle .
Shift to P and turn off ignition before leav ing
car, otherwise vehicle can roll away
This message appears if the driver's door is
opened while the ignition is switched on and the
transmission has not been shifted to the P posi­
tion . Shift the transm iss ion into the P posit ion
and turn off the ign ition if you are leaving the ve­
h icle . Otherwise the vehicle could roll.
Starting the engine when there is a
malfunction
It may not be possible to start the engine under
certain circumstances, for example if the battery
in the vehicle key is drained, if interference is af­
fected the key or if there is a system malfunc­
tion .
c:====== ~
~ _____ ___ ci5
Fig . 91 Cente r console/remote cont ro l key : sta rt ing the
eng ine
if t here is a malfunc tion
78
Requirement: the message Key is not recog­
nized. Hold back of key against marked area .
See owner's manual
must appear and the (I i n ­
dicator light must turn on.
.,. Hold the remote control key vertically in the lo ­
cation indicated
y >l) ~ fig. 91 .
.,. Press the brake peda l.
.,. Press the I START ENGINE STOPI button. The
engine will start.
.,. Drive to an authorized Audi dealer or author ­
ized Aud i Serv ice Facility immediately to have
the malfunction corrected .
(0 Tips
You can v iew the message aga in by pressing
the
I S TAR T ENGINE STOP I button.
Start/Stop system
Description
Applies to: vehicles with Start/Stop syste m
The Start/Stop system can help increase fuel
economy and reduce CO2 emissions.
In Start/Stop mode, the eng ine s hut s off auto­
matically when the vehicle is stopped, such as at
a traffic light . The ignition remains switched on
during this stop phase. The engine w ill restart
automat ically w hen needed.
The last Start/Stop system setting is restored
when the ignition is switched on.
Basic requirements for Start/Stop mode
- Th e driver's door must be closed.
- The driver's seat belt much be fastened.
- The hood must be closed .
- The vehicle must have dr iven faster than
2.5 mph (4 km/h) since the last t ime it stop ­
ped .
- A trailer must not be hitched to the vehicle .
A WARNING
-Never turn off the eng ine before the vehicle
has come to a complete stop . The full func­
tion of the brake booster and the power
steering is not guaranteed. You must use
more force to turn or brake. Because you