heating AUDI A5 CABRIOLET 2013 Owners Manual

22 Instruments and warning/indicator lights
the indicator light corresponds with the lo­cation on the vehicle.
This warning can also occur if the light switch
is in an unengaged position between two sym­
bols.
Vehicle lights: System fault!
If the message appears, there is a malfunc­
tion in the headlights or light switch .
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
A WARNING
- light bulbs are pressurized and could ex­
plode while they are being changed caus­
ing serious personal injury.
- Work with due care when handling the
high-voltage section of gas discharge
(xenon) lights*. Failure to do so could re­
sult in death or serious injury.
{O) Tips
Have the bulb replaced or the connection
repaired by your authorized Audi Service
department.
~(D Headlight range control
Applies to vehicles: with headlight range contro l
II Headlight range control defective !
If the symbol II illuminates, the dynamic
headlight range control is no longer working
properly. Have the system checked and re­
paired at your authorized Audi dealer.
§0 Adaptive Light
Applies to vehicles: with adaptive light
111 Audi adaptive light: defective
If the indicator light turns on and this mes­
sage appears, there is a malfunction in the
adaptive light system. The headlights still
function.
Go to an authorized dealership to have the headlights or the control unit for the adaptive
light repaired .
@? light/rain sensor
Applies to vehicles: with light/ra in sensor
ral Automatic headlights/ automatic wipers
defective
If the indicator light turns on and this mes­
sage appears, the light/rain sensor is not
functioning correctly.
For safety reasons the low beams are turned
on permanently with the switch in
AUTO.
However, you can continue to turn the lights
on and off using the light switch . You can still
control all functions that are independent of
the rain sensor through the windshield wiper
lever .
Contact your authorized Audi dealer as soon
as possible to have the problem corrected.
g Adaptive dampers
Applies to vehicles: with Audi drive select and adaptive
dampers
B Suspension: System fault!
If the B symbol in the display comes on, there
is a malfunction in the adaptive dampers .
Please go to an authorized Audi dealer or oth­
er qualified workshop to have the malfunction
repaired.
!-: Sport differential
Applies to vehicles: with Audi drive select and sport dif­
ferential
Sport differential: System fault!
There is a malfunction with the sport differen­
tial.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
Sport differential: Overheating
The transmission temperature has increased
significantly due to the sporty driving manner.
Drive in a less sporty manner until the tem­
perature returns to the normal range and the
indicator light switches of.
ll-

70 Warm and cold
Warm and cold Climate controls
Description
The climate control system warms, cools and
adds humidity to the air in the vehicle interior.
It is the most effect ive 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.
I n all heating mode functions except
defrost,
the blower on ly switches to a higher speed
once the engine coolant has reached a certain
temperature.
Condensat ion from the cooling system can
drip and form a puddle of water under the ve­
hicle. This is normal and does not mean there
is a leak.
Pollutant filter
The pollutant filter removes pollutants s uch
as dust and pollen from the air.
The air pollutants filter must be changed at
the intervals spec ified in you r Warranty
&
Maintenance booklet, so that the air condi­
tioner can properly work.
If you drive your vehicle in an area with h igh
a ir po llution, the fi lter may need to be
changed more frequently than specified in
your Aud i Wa rranty
& Ma intenance booklet. If
in doubt, ask your authorized Audi Service Ad ­
visor for advice .
Key coded settings
The climate control settings are automat ically
stored and assigned to the remote control key
that is in use. These settings are different
when the power top is open or closed .
A WARNING
Reduced visibility is dangerous and can
cause accidents. -
- For safe driving it is very important that
all windows be free of ice, snow and con­
densation.
- Comp letely familiarize yourself with the
proper use and function of the heating
and ventilation system and especially how to defog and defrost the windows.
- Never use the windshield wiper/washer
system in freez ing weather unt il you
have warmed the windshield first, using
the heating and ventilation system. The
washer solution may freeze on the wind­ shie ld and reduce visib ility.
(D Note
- If you suspect that the air conditioner has been damaged, switch the system
off to avoid further damage and have it
inspected by a qualified dealership.
- Repairs to the Audi air conditioner re­
quire special technical know ledge and
special tools. Contact an authorized Aud i
dea ler fo r assistance.
@ For the sake of the environment
By reducing the amount of fuel you use,
you also reduce the amount of pollutants
emitted into the air.
(D Tips
- Keep the air intake s lots (in fro nt of the
w indshield) free from ice, snow and de ­
bris in order to maintain the proper func­
tion of the climate control system.
- The energy management system may
switch the seat heating* or rear window
defroster off temporarily . These systems
are available again as soon as the energy
balance has been restored.
- Air escapes through vents under the rear
window. When placing items of clothing
on the luggage compartment cover, en­
sure that the openings are not covered.

72 Warm and cold
switching rec irculat ion mode on when driving
throug h a t unnel or when sitting in traffic
c:::> &. .
The IAUTOI button or I@ FRONT I butt on
switches recircu lation mode off .
IAUTO I Switching automatic mode on
Automatic mode ma inta ins a constant tem­
perature inside the vehicle. Air temperature,
airflow and air distribution are controlled au­
tomatically.
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 appea r in the climate con­
trol system disp lay. At both of these settings,
the climate control system runs continuously
at maximum cooling or heating power . There
is no temperature regu lation.
~ Adjusting the airflow
You can adjust the a irflow manually to su it
your needs . To have the airflow regulated au­
tomatically, press the
!AUTO ! button.
~ Adjusting the air distribution
You can manually select the ve nts where the
a ir will flow. To have the air d istribution regu­
la ted automatically, press the
IAUTOI button .
~ Adjusting seat heating*
Pressing the button switches the seat heat ing
on at the highest sett ing (level 3) . The LEDs
indicate the tempe rature leve l. To reduce the
temperature, press the button again. To
switch the seat heating off, press the button
repeatedly until the LED turns off.
After 10 minutes, the seat heating automati­
cally switches from level 3 to leve l 2.
[ill Adjusting seat ventilation*
Pressing the button switches the seat ventila­
tion on at the highest setting (level 3) . The
LE Ds indicate the ventilat ion level. To reduce
the ventilation leve l, press the button again.
To switch the seat ventilat ion off, p ress the
b utton repeatedly until the LED turns off.
I@ FRONT I Switch the defroster on /off
T he w indshield and side windows are defrost­
ed or cleared of condensation as quickly as
possible . The maximum amount of air flows
mainly from the vents below the windshield.
Recircu lation mode switches off. The tempera­
ture is controlled automatically.
The
i AUTO I button switches the defroster off.
lliil REARI Switching rear window heater
on/off
T he rear window heater only operates when
the engine is running. It switches off auto­
matically after a few minutes, depending on
the outside temperature.
T o p revent the rear window heater from
switching off automatically, press and hold
the
l oo REARI button for more than 2 seconds.
This remains stored until the ignition is
switched off.
Air vents
You can open and close the center and rear air
vents using the thumbwheels. The levers ad­
just the direction of the airflow from the
vents.
In veh icles with a 3-zone deluxe automatic cli­
mate control system*, you can adjust the air
temperature in the rear by turning the thumb­
whee l toward the red side to make it warmer
or toward the blue side to make it cooler.
A WARNING
-- Do not use the recirculation for extended
pe riods of time . The windows could fog
up since no fresh a ir can enter the vehi­
cle. If the windows fog up, p ress the air
recirc ulation button again immediately
to switch off the air recirc ulation func­
tion or se lect defrost .
- I ndividuals w ith reduced sensitivity to
pain or temperature could develop burns
when using the seat heating function. To reduce the risk of injury, these individu ­
als shou ld not use seat heating.

(D Note
To avoid damage to the heating elements in the seats, do not kneel on the seats or
place heavy loads on a small area of the
seat.
(D Tips
The seat heating only works when the seat
detects body weight on it. Placing objects
on the seat could create enough weight to
switch seat heating on.
Setup
The basic climate control settings can be ad­
justed in the radio or MM!* .
.. Se lect: I CARI funct ion button> A/C control
button. Or
.. Se lect:
I CARI function button > Car sys-
tems *
control button > AC.
Automatic recirculation*
When switched on, automatic recirculation
controls the recirculation mode automat ica lly.
If the windows fog up, press the
l <m> FRONTI
button.
Synchronization*
When synchronization is switched on, the
same settings are applied to both the driver
and front passenger, except for the seat heat­
ing/ventilation*. Synchroni zation switches off
when you adjust the settings on the front pas­
senger's side.
You can also switch synchronization on by pressing and holding the knob on the driver's
side.
Supplementary heater
The supplementary heater warms the interior
of vehicles with flexible fue l engines more
quickly . The supplementary heater is control­
led automatically in the
Auto setting.
Warm and cold 7 3
Upper cabin heating
Applies to vehicles: with upper cabin heating
Fig. 85 Driver 's seat: ve nt for upper cabin heating
Fig. 86 Driver's seat: upper cabin heating button
I (I) m
The upper cabin area of the front seats can be
heated at three levels when the engine is run­
ning.
.. Press the~ button to switch the upper cab­
in heating on. The LED illuminates.
.. Press the~ button repeatedly until the LED
goes out to switch the upper cabin heating
off.
A WARNING
-
The output from the upper cabin heating
system may be very hot temporarily if the
air vents in the seats
r::!;>fig. 85 are cove red
by cloth ing or other objects when the sys­
tem is switched on. This can cause burns
on unprotected skin exposed direct ly to
the vents .
{!) Tips
-Upper cabin heating always switches on
at the highest level. You can red uce the
heat output with the~ button and in­
crease it with the~ button as needed.

84 On the road
Cruise control
Switching on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph
(30 km/h).
0
f
®t
0
Fig. 94 Control lever w it h push-button
Fig. 95 Dis pl ay: Selected speed
"' Pull the lever to position (D 9 fig . 94 to
switch the system on.
"' Drive at the speed to be controlled .
"' Press button @ to set that speed.
I :i:. ... a,
The stored speed and the green symbol
lij;(l)~i4 (US model) 1B (Canadian model) are
shown in the display
r:::;, fig. 95. The display
may vary, depending on the type of display in
your veh icle.
The speed is kept constant by modifying en­
gine power or through an active brake inter­
vention.
A WARNING
- Always pay attention to the traffic
around you when the cruise control is in
operation. You are always responsible for
your speed and the distance between
your vehicle and other vehicles. -
For reasons of safety , cruise control
should not be used in the city, in stop­
and-go traffic, on twisting roads and
when road conditions are poor (such as ice, fog, gravel, heavy rain and hydro­
plan ing) - risk of accident.
- Turn off the cruise control temporarily
when enter ing turn lanes, highway exit
lanes or in constr uction zones .
- Please note that inadve rtently "resting"
your foot on the accelerator pedal causes
the cruise control not to brake. This is
because the cruise control is overridden
by the drive r's acceleration.
- If a brake system malfunction such as
overheating occurs when the cruise con­
trol system is switched on, the braking
function in the system may be switched
off . The other cruise control functions re­
main active as long as the indicator light
[ff;(l)~i4 (US models) ;B (Canadian mod­
els) is on.
(D Tips
The brake lights illuminate as soon as th e
brakes app ly automatically.
Changing speed
"' To incre ase/decrease the speed in incre­
ments, tap the lever in the
010 direction
r:::;, fig . 94 .
"' To increase/decrease the speed quic kly,
hold the lever in the
010 direction until
the desired speed is displayed.
You can also press the accelerator pedal down
to increase your speed, e .g. if you want to
pass someone. The speed you saved earlier
will res ume as soon as you let off of the acce l­
erator pedal.
If, however, you exceed your saved speed by
6 mph (10 km/h) for longer than 5 minutes,
the cruise control wil l be turned off tempora­
rily. The green symbol in the disp lay turns
white. The saved speed remains the same.

92 Transmission Transmission malfunction
Applies to vehicles: with multitron ic/5 tronic/t iptronic
[O] Transmission: Press brake pedal and se ­
lect gear again .
Press the brake pedal and se lect the des ired
se lecto r lever posit io n again. Yo u can t hen
con tinue dr iv ing.
[O] Transmission overheating: Please drive
conservatively .
The transmission temperature has increased
significantly d ue to the sporty driving manner.
Drive in a less spo rty manne r until the tem­
pera ture ret ur ns to the no rma l range and the
indicator light switches of.
[O] Transmission malfunction: You can con ­
tinue driving
There is a system ma lf u nction in t he transmis­
sion. You may continue driving. Dr ive to your
author ized Audi dealer or qualified repair fa­
cility soon to hav e the mal function cor rected.
[O] Transmission malfunction : Limited driv ­
ing functionality
T here is a system ma lf u nction in the tra nsmis ­
sion. The transmissi on is sw itchi ng to emer­
gency mode . Th is mode only s hifts into cer­
tain gears or will no lo nger shift at a ll. The en­
g ine may stall. Drive to your authorized A udi
dea le r or qualified repair facility immediate ly
to have the ma lf u nct ion co rrected .
[O] lij Transmission malfunction: No reverse
You can continue dr iving
S tron ic ® transmission : There is a system ma l­
f u nction in the transmission. The transmis ­
sion is switc hing to emergency mode. T his
mode on ly shifts into certain gears or w ill no
l onge r shi ft at all. T he e ngine may sta ll. You
can not engage the reverse gear . Drive to your
author iz e d Audi d eal er or qua lified repai r fa­
cili ty im m ed ia tely to have the m alfu nctio n
cor re cte d.
[O] Transmission malfunction : Stop vehicle
and shift to park .
Do not con tinue dr iving. Se lect the P sele ctor
l ever positio n and see your authorized A udi
dealer or qualified repair fac ility fo r assis­
tance.
(D Note
If t h e trans mission swit ches to emergency
mode, yo u should ta ke the ve hicl e to an
a uthorized Audi dea lership as soon as pos­
s ib le to have th e co nditio n co rrected .
Selector lever emergency release
Applies to vehicles: wit h multitronic/5 tro ni c/tiptro nic
If the vehicle's power supply fails , the selec­
tor lever can be released in an emergency.
Fig . 101 Fr on t center co nsole: Remov in g t he as htray
in sert
Fig. 102 Selector lever eme rgency release
.. To access the emergency re lease mecha ­
nism, rem ove the ashtray insert ® using t he
re lease sw itch @¢
fig. 101.
• Loosen and remove the cap in t he ashtray
mou nt.
"' Yo u now have access to a p in. Using a screw­
d river or sim ila r ob ject, press t he p in down
an d ho ld it i n that p osition
~ fig . 102 .
"' No w pre ss the release bu tton and move the
s elec tor l ever to the N po siti on. ..,.

180 Intelligent technology
ESC includes and/or works together with the
anti-lock brake system (ABS), brake assist sys ­
tem, anti-slip regulation (ASR) , e lectronic dif­
ferential lock (EDL), dynamic steering" and
e lectronic interaxle differentia l lock* /selective
wheel torque control* . ESC is switched on all
the t ime. I n certa in s ituations whe n you need
l ess t raction, you can switch off ASR by p ress­
i ng the bu tto n
[ru ¢ fig. 167 or ¢ fig. 168. Be
sure to sw itch ASR on ag ain when you no lon­
ger need less trac tion.
Anti -lock braking system (ABS)
ABS prevents t he wheels from locking up
when braking. The veh icle can still be st eered
even d uring ha rd b rak ing . Apply steady p res­
sure to the br ake pedal. Do no t pu mp the ped­
a l. A puls ing in t he bra ke peda l ind icates that
the system is he lping yo u to b rake the vehicle .
Brake assist system
The brake assist system can decrease bra king
d ista nce. It increases braking powe r w hen the
d river p resses the brake pedal quickl y in eme r­
gency situa tions . You mus t press and ho ld the
brake peda l until the situation is over. In
ve hicles with adaptive cruise contro l", the
brake assist system is more sensit ive if the
d ista nce detected to t he vehicle a head is too
smal l.
Anti-slip regulation (ASR)
ASR reduces engi ne power when the drive
wheels begin to spin and adapts the fo rce to
the road condit ions. This makes it easier to
start, accelerate and drive up hills.
Electronic diffe rential lock (EDL )
The EDL brakes wheels that are spinning and
tra nsfers t he d rive powe r to the other d rive
wheel or whee ls if the vehicle is equipped with
all-wheel drive*. This function is available up
to about 60 mph (100 km/h).
In extreme cases, EDL a utomatica lly switches
off to help keep the bra ke on the braked whee l
from overheating. EDL will switch on aga in au­
tomatically when conditions have returned to
normal.
Dynamic steering*
On vehicles wi th dynam ic s teering *, ESC he lps
sta bilize the steer ing in crit ica l sit uat ions.
Electronic interaxle differential lock*/
selective wheel torque control*
T he ele ctroni c in te raxle di fferentia l lock ( fron t
whee l drive) o r th e se lective whee l torque
control (all -whee l drive) operates when driv­
ing t hro ugh cu rves. The front wheel on the in­
s ide of the c urve or both whee ls on the inside
of the curve are braked selectively as needed .
Th is mi nimizes sliding in the front wheels and
allows for more precise d rivi ng through
cu rves . The a ppl icable syste m may not acti­
vate when dr iv ing in wet o r snowy cond itions.
_&. WARNING
- E SC, A BS, ASR, ED L d ynam ic steering *
a nd the elect roni c in ter ax le d ifferenti al
loc k* /se lective whee l torque control *
cannot ove rcome the laws of physics .
This is especia lly important on slippery
or wet r oads. If the systems beg in acting
to stabilize your veh icle, yo u should im­
mediately change you r speed to match
the road and t raff ic conditions. Do not
let the increased safety prov ided by
t hese systems temp t you to ta ke r is ks.
Doing so will increase the risk of a lo ss of
veh icle cont ro l, col lision an d ser io us per­
sonal injur ies.
- Always adapt your speed to ro ad, traff ic
an d wea ther conditions . The risk of los ­
ing contro l of t he vehicle increases when
driving too fast, es pec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
a head. ESC, ABS, the brake ass ist sys­
t e m, ASR, EDL dynam ic s teer ing* and the
elec tronic inte raxle differe ntia l lock*/se­
lective whee l to rque contr ol* cannot p re­
vent co lli sion s.
- Always accelerate wi th special care on
eve n smooth s urfaces su ch as those that
'
ar e we t or covered w ith i ce and snow.
T he drive whee ls can spin even w ith
-
these assistance systems that can not ~

186 Intelligent technology
Plea se start the engine soon or the system
will be tu rned off.
The warning ind icates that the system will be
turned off automa tic ally after 3 m inu tes. If
you wish to cont inue using the functions , you
have to start the engine .
With the engine running
Although ele ct ric al e nergy is generated when
the vehicle i s be ing driven , the battery can be­
come d ischarged. This happens most ly w hen
little energy is being generated and a great
deal consumed and the battery 's state of
charge is not optima l.
To br ing the energy balance back into equili­
brium, cons umers which require especia lly
l arge amounts of energy are temporarily c ut
back or switched off. Heating systems in par·
ticular requ ire a great deal of energy. If you
notice, for example, that the heated seats* or
the heated rear window are not heating, they have been temporar ily cut back o r switched
off. These systems will be ava ilable again as
soon as the ene rgy ba lance h as been restored.
You will a lso notice that engine idle speed has
been inc reased slightly . This is norma l and not
a cause fo r conce rn . By increas ing engine idle
speed the add itiona l ene rgy required is gener­
ated and the ba tte ry is charged.

188 Driving and en vironm ent
8_ WARNING
After driving through water, mud, slush,
etc ., the brakes may be slow to take effect
because of wet brake rotors and pads. Dry
the brakes first by braking carefully to re­
store the full braking effect.
CD Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys­
tem can be severely damaged by driving
through wate r.
@ Tips
- Check the depth of the water before dr iv­
i ng through it.
- Do not stop the veh icle, dr ive in reverse
or switc h the engine off when driving
t hr ough water.
- Keep in mind that oncoming vehicles
may c reate waves that raise the water
l evel and make it too deep fo r you r vehi­
cle to dr ive through safely.
-
- Avoid dr iving thro ugh salt water because
i t can ca use corrosion.
Catalytic converter
It is very important that your emission con­
trol system (catalytic converter) is function ­
ing properly to ensure that your vehicle is run­
ning in on environmentally sound manner.
,,. Always use lead-free gasoli ne¢ page 207,
Fuel supply .
,,. Never run the tank down a ll the way to
empty.
,,. Never put too much motor oil in your en-
gine ¢
page 217, "t':::r. Adding engine oil.
,,. Never t ry to push- o r tow-start your veh icle.
The catalytic converter is an effic ient "clean­
up" device built into the exhaust system of
the vehicle. The catalytic converter burns
many of the polluta nts in the exhaust gas be­
fore they are released into the atmosphe re. The exclusive
use of unleaded f uel is critica lly
important for the life of the catalytic convert­
er and proper funct ion ing of the eng ine .
A WARNING
= -
-Do not park or operate the vehicle in
areas where the hot exhaust system may
come in co ntact with dry grass, brush,
fuel spill or other material wh ich can
cause a fire .
- Do not app ly additional undercoating or
r u stp roofing on or nea r the exhaust
manifold, exhaust pipes, cataly tic con­
ver ter or heat shields. Dur ing driv ing, the
substance used for under coa ting co uld
overhea t and cause a fire.
CD Note
- Be aware that just o ne tank filling with
leaded fu el w ill already ser io usly de ­
gr ad e the per form ance o f the catalytic
c onverte r.
- Do not ex ceed t he corre ct engine oil level
r:;!) page 217.
- Do not drive until the fuel tank be co m es
completely emp ty. The engine co uld mis­
fire . Unburned fuel could also get in to
the exhaust system and this co uld cause
the cata lytic converter to overheat .
- Do not turn off the igni tion whi le the ve ­
hicle is mov ing.
- Do not contin ue to ope rate your veh icle
unde r these conditions, as otherwise fuel
can reach the catalyt ic converte r. T his
co uld resu lt in overheating of the con­
verter, requir ing its replacement.
- To assure efficient operation of the Emis ­
sion Control System:
- H ave you r vehicle maintained p rope rly
and in accordance w ith the se rvi ce rec ­
ommen dat ions in yo ur Warranty &
M ain tenance boo klet.
- L ack of prope r maintenan ce as we ll as
i mprope r use of t he ve hicl e wi ll impair
the func tion of the em ission cont ro l
system and could lea d to damage .
Ill>

190 Driving and en vironm ent
(0 Note
Do not leave engine idling unattended af­
ter starting . If warning lights should come
on to indicate improper operation, they
would go unheeded. Extended idling also
produces heat, which could result in
over­
heating or other damage to the vehicle or
other property.
Regular maintenance
A badly tuned engine unnecessarily wastes a lot of fuel .
.,. Have your vehicle serv iced at regular inter-
vals.
By having your vehicle regularly serviced by an
author ized Audi dealer he lps to ensure that it
runs properly and economically. The condition
of your vehicle not only affects its safety and
ab il ity to hold its value, it also affects
fu el
con sump tion .
C heck your oil each time you fill your tank.
The amount of oil used is related to engine
l oad and speed.
I t is normal for the oil consumption o f a new
engine to reach its lowest val ue after a certain
mileage has been driven.
You mus t drive yo ur vehicle abo ut 3,000 miles
(5,000 kilometers) be fo re yo u can properly
assess oi l consumption.
This a lso applies to fuel consumption and en­
g ine output.
(]) Note
-Have yo ur vehicle maintai ned properly
and in accordance with the service re c­
ommendations in your War ran ty
& Mai n­
tenance bookle t. Lack of proper mainte ­
nance as well as imp roper use of the
ve­
hicle will impair the function of the
emission control system and could lead
to damage. -
Do not alter or
remove any component of
the Emission Control System unless ap­
proved by the manufacturer .
- Do not alter or
remove any device, such
as heat shie lds, switches, ignition w ires,
valves, which are designed to protect
your vehicle's Emission Control System and other important vehicle compo­
nents.
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
.,. Try to avoid driv ing short distances w ith a
cold engine.
The engine and cata lytic converter have to
reach their opt imal
oper ating temperature to
reduce fuel consumpt ion and nox ious em is­
s ions effectively.
Just after starting, a co ld engine in a mid-size
car on ly achieves a fuel economy of 6-8 m iles
per gallon (30-40 l/100 km). After about a
half a mile, fuel economy climbs to 12 mpg
(20 l/100 km) . After about
2 .5 miles (4 km),
the engine is at its prope r operating tempera­
tu re and fuel economy has reached a normal
level. So you can see that yo u should avo id
short trips whenever poss ible.
T he
outside temperatur e is also cr it ical in t his
regard. Your car consumes more fue l in the
winter tha n in the s umme r.