engine coolant AUDI RS7 SPORTBACK 2014 Owners Manual

10 Instruments and warning/indicator lights
Instruments and warning/indicator Lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source of information.
Fig. 3 Overv iew of the inst rument cluster
CD Coolant temperature gauge ...
@ Tachometer (engine rev counter)
@ Turn signals ........... .. .. .
© Display with
- Driver information system .. .
- Warning/ind icator lights
® Tachometer 10
11
46
23
11
@ Fuel
gauge . . . . . . . . . . . . . . . . . 11
@ Tips
The instrument illumination (for dials and
needles) turns on when the ignition is on
and the vehicle lights are turned off . As
the daylight fades, the illumination of the
dia ls likewise dims automatically and will
go out completely when the outside light
is very low. This feature is meant to rem ind
you to switch on the headlights when out­
side light conditions become poor.
Engine coolant temperature gauge
The engine coolant gauge CD c:> page 10, fig. 3
only works when the ignition is on . To prevent
damage to your engine, please note the fol­
l owing important points:
Engine cold
,.._ N
9 (!)
" a,
If only the LEDs at the bottom of the gauge
turn on, the engine has not reached operating
temperature yet. Avoid high engine speeds, heavy engine loads and heavy th rottle applica­
t ions.
Normal temperature
The engine has reached its operating temper­
ature once the LEDs up to the center of the
gauge turn on unde r normal driv ing cond i­
t ions . Th e LEDs higher up may turn on when
the engine is under heavy load or the exterior
temperature is high. This is no need to worry
as long as the . warning light in the instru­
ment cluste r does not illum inate . If the LEDs
i n the upper area of the disp lay and the indica­
tor light . in the instrument cluster display
turn on, the coolant temperature is too high
c:>page 15.
A WARNING
-Always observe the warn ing in
c:> page 213, before opening the hood
and checking the engine coolant level.

Instrument s and warnin g/indic ator ligh ts 11
- Never open the engine hood if you see or
hear steam, or if you see engine coolant
dr ipping from the engine compartment.
You could burn yourself . Let the engine
cool off first until you can no longer see
or hear steam or coo lant escaping.
Q) Note
- Mount ing additional lights or accessories
i n front of the a ir inlets reduces the cool­
i ng effect of the rad iator . At h igh outside
temperatures or high eng ine load, the
engine could overheat.
- The front spo ile r has been designed to
proper ly distribute the cooling air wh en
t h e veh icle i s moving.
If the spoiler is
damaged, this cou ld red uce the cooling
effect and the engine co uld then over ­
heat . Ask yo ur authorized Audi dea ler fo r
ass istance.
Tachometer (engine rev counter)
The tachometer indicates the engine RPM
(revolutions per minutes).
If engine R PM drops be low 1 ,500, you should
downshift to the next lower gea r. T he red area
at the end of the sca le indicates maximum
pe rmissib le engine RPM after the break- in pe­
riod. Before reach ing this area, move these­
lector lever to position 0/5 (Drive) or ease
your foot off the accelerator peda l.
(D Note
The tachometer needle should only br iefly
be in the red zone: you cou ld damage your
eng ine! The beginn ing of the red zone var­
ies depending on the operati ng tempera­
ture of the eng ine .
@ For the sake of the environment
Upshift ing early saves fuel and reduces en­
gine noise.
@ Tips
The engine speed is limited when the en­
g ine is co ld - the full engine output is not ava
ilable . When the engine is at operating
temperature, the red area in the tachome­
ter moves to a higher RPM range.
Fuel gauge
The fuel gauge only works when the ignition is
on. If the fue l level drops below 2 .6 gallons
(10 lite rs), the bottom LED turns red and the
indicato r light ~ turns on
¢ page 21 . The
bottom L ED blinks red whe n the fuel level is
very low.
The possible range based on the current fuel level is shown in tab@~
page 23, fig. 4.
(D Note
Neve r run the ta nk completely dry. A n ir­
r egular supply of f uel can cause engine
misfiring and fuel could enter the exha ust
system. The catalytic co nve rter could t hen
ove rheat and be damaged .
Warning/indicator
Lights
Description
The ind icator lights in the instrument cluster
blink or tur n on. They indica te f unct ions or
malfunctions
¢ & .
Messages may appea r with some indicato r
li ghts. A warning signal will sound at t he
same t ime . The indica to r li ghts and messages
i n the center of the displays may be rep lace d
by other disp lays. To show them again, select
the tab for ind icator lights and messages us­
ing the multif unction steering whee l
¢ page 23. If there are several malfunc­
tions, you can display them one at a time us­ i ng the thumbwheel.
Some indicators lights in the d isp lay can turn
on in severa l co lors.
A WARNING
- Failure to heed warning lights and other
important vehicle informat ion may resu lt
IJI,,

Instrument s and warnin g/indic ator ligh ts 15
(USA models): If the warnin g light 1111 and
the warning light
EiJ appear together, imme­
d iate ly contact your authorized Aud i dea ler or
qua lified workshop to have all brake pads in­
spected
¢ page 20 .
When t he light comes on, an audib le warning
signal is also given .
A WARNING
-Always observe the warnings in
¢ page 213, before opening the hood
and checking the brake fluid.
- Driv ing with low brake fluid is a safety
hazard . Stop the car and get professional
assistance.
- If the 1111 (USA models)/ . (Canada
mode ls) brake system indicator light
tu rns on together with the ABS and ESC
indicator lights, the ABS/ESC regu lating
function may have failed. Functions tha t
stabilize the ve hicl e are no longer availa­
ble. This cou ld cause the vehicle to
swerve and increase the risk of sliding .
Drive carefully to the nearest a uth orized
Audi dealer or other qualified workshop
and have the malfunction corrected.
- If the brake warning/indicator light does
not go out after a few seconds and the
park ing brake is released, or lights up
wh ile you are drivi ng, the fluid level in
the brake fluid reservoir is too low .
If you
b elieve that it is safe to do so, proceed
immediately at low speed to the nearest
autho riz ed Au di d ealer o r qualifie d re pair
f acili ty and have the bra ke system in­
spected.
- Always kee p in m ind tha t afte r several
brake applicat ions, yo u will nee d greater
pressure on the brake peda l to stop your
vehicle. Do not re ly on strained brakes to
respond w ith maxim um stopping power
in critical situations. You must allow for
increased braking distances . The extra
distance used up by fad ing brakes could
lead to an acc ident.
PARK!< ®> Electromechanical parking brake
The warning/indicator light monitors the
electromechanical parking brake .
If the indicator light- (USA models)/ .
(Canada models) turns on, the parking brake
was set . If the park ing brake is set when the
ignition is off, the indicator light turns off af­
te r abo ut 20 seconds.
The warning/indic ator light will go out when
the parking brake is re leased .
-(USA models ) ,. (Canada models )
Caut ion: Vehicle parked too steep
If the indicator light b links and the message
appears, there is not enough braking power to
keep the vehicle from roll ing. The brakes have
overheated. The vehicle could roll away even
o n a small incl ine .
Press brake pedal to release parking brake
To re lease the par king brake, press the brake
peda l and press the button ~ or start driv ing
with starting assist at the same time
¢ page 78.
Pl eas e r elease parking brake
To re lease the park ing b rake manually , press
the b rake peda l and press the button~ at the
same time. The parking b ra ke only releases
a ut omat ica lly if the d river 's sa fe ty belt is fas­
tened.
Ill Parking brake!
If the DI indicator lig ht turns on and th is
message appears, there is a parking brake
malfu nction . D rive to your authorized Audi
deal er or qualified workshop immediately to
have the malfun ct io n corrected.
-L Engine cooling system malfunction
A malfunction in the engine cooling system
must be repaired as soon as possible .
• Switch off engine and check coolant lev el liJI,

16 Instruments and warning/indicator lights
If the indicator light turns on and the mes­
sage appears, the coo lant temperature is too
h igh or the coo lant level is too low.
.,. Pull off the road.
.,. Stop the vehicle.
.,. Turn off the engine.
.,. Check coolant level¢
page 220 .
.,. Add coolant if necessary ¢ page 221 .
.,. Continue driving only after the engine cool­
ant warn ing/indicator light goes out.
.,. Contact you r authorized Aud i dealer for as-
s istance if necessary .
If the engine coolant level is correct, then the radiator fan may be the cause of the malfunc ­
tion .
• Coolant temperature too high! Please let
engine run with vehicle stationary
If the indicator light turns on and the mes­
sage appears, let the engine run at idle for a
few minutes to cool down.
A WARNING , _ -
- If your veh icle should break down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the engine and turn on the hazard
wa rning lights¢
page 45, Emergency
flasher.
- Never open the hood if you see or hear
steam or coolant escaping from the en­
gine compartment -you risk being scald­
ed. Wait until you can no longer see or
hear steam or coo lant escaping .
- Th e engine compartment of any vehicle
is a dangerous area. Before you perform
any work in the engine compartment,
turn of the eng ine and allow it to cool.
Follow the warning stickers¢
page 213.
(D Note
Do not continue driving if the . symbol
illuminates. There is a malfunction in the
engine cooling system -you co uld damage
your engine.
0 Battery
This warning/indicator light detects a mal­
function in the generator or in the vehicle's
electrical system .
The. warn ing/ indicator light illuminates
when you switch on the ignition and must go
out after the engine has started .
• Alternator fault: Battery is not being
charged
If the indicator light turns on and the mes­
sage appears, there is a malfunction in the
generator or vehicle electrical system.
Drive to your authorized A udi dealer or quali­
fied workshop immediate ly. Because the vehi­
cle battery is discharging, turn off all unnec ­
essary electrical equipment such as the rad io.
Seek professional assistance if the battery
charge level is too low.
t•) Low battery: battery will be charged
while driving
If the indicator light turns on and the mes­
sage appears, there may be limited starting
ability.
If this message turns off after a little while,
the battery charged enough while driving.
If the message does not turn off, have your
a uthor ized Aud i dealer or qualified workshop
correct the malfunction.
-ft Safety belts
This warning/indicator light reminds you to
put on your safety belt.
The . warn ing/ indicator light illum inates
whe n the ignition is switched on to remind
the driver and any front passenger to put on
the safety be lt. Addit iona lly, an aco ustic wa rn­
ing (gong) w ill also so und .
For more Information¢
page 133, ,i Safety
belt warning light.

Warm and cold Four-zone automatic
climate control
Description
Applies to vehicles: with four-zone automat ic climate co n­
tro l
The climate control system warms, cools and
adds humidity to the a ir in the veh icle inter io r.
It is the most effect ive when the windows and
sunroof* are closed.
If the temperature inside
the parked vehicle becomes very warm, open­ ing the window briefly will speed up the cool­
ing 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.
Condensation 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 filt er
The po llutant filter removes pollutants such
as dust and pollen from the air.
The air pollutants filter must be changed at
the intervals spec ified in your Wa rranty
&
Maintenance book let, so that the air condi ­
tioner can properly work.
I f you d rive your vehicle in an area with h igh
air po llution, the fi lter may need to be
changed more frequent ly than specified in
your Audi Warranty
& Maintenance booklet. If
in doubt, ask your authorized Audi Service Ad·
visor for advice.
Key coded setting s
The clima te control sett ings are a utomat ica lly
stored and assigned to the remote contro l key
that is in use .
Warm and c old 69
A WARNING
-
Reduced visibi lity is dangerous and can
cause acc idents .
- For safe driving it is very important that
all windows be free of ice, snow and con­
densat ion.
- Comp letely fam il iarize yourse lf with the
proper use and funct ion of the heat ing
a nd ventilation system and especially
how to defog and defrost the w indows.
- Never use the windshield wiper/washer system in freez ing weathe r unt il you
have warmed the windshie ld first, using
the heating and ventilation system. The
washer sol ution may freeze on the wind­
shie ld and red uce visibi lity.
CJ) Note
- If you s uspect that the air conditioner
has been damaged, switch the system
off to avoid furt her damage and have it
inspected by a qualified dea lership .
- Repairs to the Audi air conditioner re­
quire specia l technical know ledge and
special tools. Contact an authorized Audi
dealer fo r ass istance.
@ For the sake of the envi ronment
By reducing the amount of f uel you use,
you also red uce the amount of pollutants
emitted into the air.
(D Tips
- Keep the air intake s lo ts ( in front 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 ma nagement system may
switch the seat heating* or rear window defroster off temporar ily. These systems
are available again as soon as the energy
balance has been restored .
- Air escapes through vents under the rear window. When plac ing items of cloth ing
on the luggage compartment cover, en­
sure that the openings are not covered.

Starting th e engin e
"'Press the brake peda l r::!> _&..
"'Press the I START ENGINE STOP I button
r::!> fig. 81. The engine will start .
If the engine should not sta rt immediately ,
the sta rting process is automatically stopped
after a short time. Repeat starting procedure .
A WARNING
-Never allow the engine to run in confined
spaces -danger of asphyxiation .
- Never t urn off the engine unti l the vehi­
cle has come to a complete stop.
- The brake booster and power steering
only work when the engine is running . If
the engine is off, you have to use more
force when steering or braking. Because
you cannot steer and brake as you usua l­
ly would, this could lead to crashes and
ser ious injur ies .
(D Note
-Avoid high engine rpm, full throttle and
heavy engine loads unti l the engine has
reached operating temperature -other ­
wise yo u risk eng ine damage.
- The eng ine cannot be started by pushing
or tow ing the veh icle.
(D Tips
- After a cold engine is started, there may
be a brief period of increased noise be­
ca use oil pressure mus t fi rst bu ild up in
the hyd raulic valve adjusters . This is nor­
mal and not a ca use for concern.
- If you leave the vehicle with the ignit ion
switched on, the ignition will switch off
after a certai n pe riod of time. P lease
note tha t electr ica l equipment s uch as
exterior lights wi ll switch off as well
when that happens.
Stopping the engine
"' Bring your vehicle to a complete stop.
"' Move the selector lever to the P or N po si­
t ion.
On th e ro ad 75
"'Press the I START ENGINE ST OP I button
r::!>poge 74, fig . 81.
Ste ering lock
T he s teering locks when yo u tur n the engine
off using t he
I S TA RT ENGINE STO P! bu tton
and open the d river 's doo r. The locked steer­
ing helps prevent vehicle theft.
Emergency off
If necessary, the engine can be switched off
with the selector lever in the R or D/S posi­
t ion. The engine stops if you press the
I S TAR T ENG IN E ST OP I button at speeds below
6 mph (10 km/ h) .
A WARNING
- Never turn off the engine until the vehi­
cle has come to a complete stop.
- The brake booster and power stee ring
only work when the eng ine is r unning . If
the engine is off, you have to use more
force when steering or braking. Because
you cannot steer and brake as you usual ­
ly would, this co uld lead to crashes and
serious injuries .
- For safety reasons , you should a lways
pa rk your vehicle w it h the selector lever
in P. Otherwise, the vehicle could inad­
ver ten tly roll away.
- After the eng ine has been switched off,
the radiator fa n can cont in ue to run for
up to 10 minu tes -even with the ignition
sw itche d off . It can also sw itch on again
after some time i f th e coolant tempera­
ture rises as the result of a heat b uildup
or if the engine is hot and the engine
compartment is additionally heated by
the sun's rays.
(U) Note
Do not stop the engine immediately after
hard o r extended driving. Keep the engine
running for approximate ly two minutes to
prevent excess ive heat bu ild-up .

Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 186 Dr iver footwell: release lever
Fig. 187 Rocker switch under the hood
Make sure the wiper arms are not raised up
from the w indshield. Otherw ise the paint
could be damaged.
.. Pull the lever under the instrument panel in
the d irect ion of the arrow~
fig. 186.
.. Raise the hood slightly~ &-
.. Press the rocker switch under the hood up­
ward
~ fig. 187. This re leases the catch .
.. Open the hood .
A WARNING
Hot engine coo lant can burn you.
- To reduce the r isk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
Checkin g and fillin g 213
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
W hen ev er y ou must p erform an y wor k in the
en gine com pa rtm ent , for e xample checking
a nd filling diff ere nt fluid s, th ere is a risk of
inju ry, burn s and accid ents. To pr eve nt p er­
so nal inju ry always observ e the foll owing
W ARNING S. The engin e compartm ent of any
v e hicle i s a haza rdou s area
~ ,& .
h WARNING
To help avoid injury, before yo u check any ­
thing under the hood:
- Turn off the engine.
- Sw itch off the ignition.
- Apply the parking brake.
- Move selector leve r to P (Park).
- Always let the engine cool down. Hot
components w ill burn skin on contact .
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coo lant escaping from the engine
compa rtment. Wait unt il no steam or
coolant can be seen or heard before care­
fu lly opening the hood.
- Keep ch ildren away from the engine com­
pa rtment.
- Never sp ill fluids on hot engine compo­
nents . They can cause a fire .
- Never touch the rad iator fan. The auxili­
ary electric fan is temperat ure controlled
and can switch on suddenly .
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is p ressu rized and hot cool­
a nt cou ld spray o ut.
- Protect your face, hands and arm from
steam or hot engine coolant by plac ing a
thick rag ove r the cap when you open the
coo lant rese rvoir.
- Do not remove the engine cover under
any circumstances. This inc reases the
ris k of burns.
- If work on the fue l system o r the elec tri ­
cal system is necessary:

Checking and fillin g 215
Engine compartment
Engine compartment overview
These are the most important items that you can check.
Fig. 188 Typical l ayout for conta iners and engine o il filler cap
@ Jump start poin t(-) with hex
head screw .. .. ..... ... .. .. . 226, 264
@ Jump start point(+) under a cov-
er .. .. ... ..... ...... ...... 226, 264
@ Brake fl uid reservo ir ((0)) . . . . . 22 2
© Engine oil filler cap ("1:::r.) . . . . . 218
® Coolant expansion tank (-L) . . . 220
© W indshield/headlight washer
container
(0) . . . . . . . . . . . . . . 227
_& WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS
Q .&. in Working in the engine
compartment on page 213.
-
Engine oil
Engine oil specifications
The engine in your Audi needs the right kind
of oil.
T he eng ine in your Audi is a sophisticated
powerplant that was built to exacting specifi­
cations. This eng ine needs the right k ind of
engine oil that meets specifications regarding
quality and viscosity so that it can r un
smooth ly and reliably. Choosing the right o il
and changi ng oil within the t ime and mileage
in tervals p rin ted in you r vehicle's Wa rranty
&
Maintenance booklet matters a lot more to­
day than it did years ago . Audi has deve lope d
a specia l quality sta ndard for engine oil t hat
will help assure that your vehicle's engine w ill
get the lubrication it needs for proper opera­
tion.

220 Check ing and filling
Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from freezing in the winter .
The cooling system is sealed and generally re­
quires little attention.
The cooling system has been filled at the fac­
tory with a permanent coolant which does not need to be changed. The coolant consists of a
mixture of specially conditioned water and the
manufacturer's glycol-based coolant addi-
tive G13 antifreeze with ant icorros ion addi­
tives (50% for USA models; 60% for Canadian models) . This mixture both assures the neces­
sary frost protection and protects metal com­
ponents in the engine's cooling system from
corrosion and scaling.
It a lso raises the boil­
ing point of the coo lant.
D o not reduce the concentration o f the coo l­
ant in the summer by adding plain water .
The
proportion of coolant add it iv e mu st be at
lea st 50 % but not mo re than 60 %
to main­
tain antifree ze protection and cooling efficien­
cy. If the coolant frost protect ion is too low,
the coolant could freeze and damage the veh i­
cle heating and eng ine cooling system .
For year-round driving, antifree ze is added at
the factory for temperatures down to:
- -31° F(-35°C)USA
- - 40 ° F ( -40 °C) Canada.
I f you must add coo lant, use a m ixture of wa­
ter and coolant addit ive. Mixing the coolant
addit ive wi th dist illed wate r is recommended.
_& WARNING
Before yo u check any thing in the engine
compartment, always read and heed all
WARNINGS
¢ &. in Working in the engine
compartment on page 213.
(D Note
- Before winter se ts in, have the coolant
checked to see if the coolant additive in
-
your vehicle is sufficient to meet the cli­ mate conditions . This is especia lly impor ­
tant if you live in a reg ion where the win­
ter is extreme ly cold. If necessary, in­
crease the proportion of coolant add itive
to 60% .
- When adding coolant additive to your
cooling system , remember :
- We recommend us ing on ly coolant ad­
d it ive G12 ++ or G1 3 (check the labe l)
for your vehicle . This coolant additive is
avai lable at autho rized Audi dea lers .
Other types of antifreeze can signifi­
cantly reduce corrosion protection. The
resu lting corrosion can cause a loss of
coolant and serious engine damage .
- Do not add any type of rad iator leak seal­
ant to your vehicle's engine coolant.
Add ing radiator repa ir flu id may adverse ­
ly affect the function and performance of
your cooling system and could resu lt in
damage not covered by you r New Ve hicle
Limited War ran ty.
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
F ig . 1 91 Engin e compar tmen t: cover o n th e coolant
expans io n tank
Befo re you check anyth ing in the engine com­
partment,
always r ead and he ed all WARN­
INGS
¢ &_ in Working in the engine compart­
ment on page 213.
.,. Park your vehicle on a level surface .
.,. Switch off the ignition .
.,. Read the engine coo lant level from the coo l­
a nt expansion tank¢
fig . 191, ¢ page 215, ..,.

fig. 188. With a cold engine, the coolant
lev el should be between the "min" and
"max" markings. When the engine is warm,
the level may be slightly above the "max"
marking .
The location of the coolant expansion tank
can be seen in the engine compartment illus ­
t ration
<=> page 215.
To obtain an accurate reading , the engine
must be switched
off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System<=>
page 15 will
illuminate until you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level sensor, we
still recommend you check the coolant level
from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cool­
ing system should be inspected immediately
by your authorized Audi dealer. It is not
enough merely to add coolant .
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
&_ WARNING
-
The cooling system is under pressure and
can get very hot. Reduce the risk of scald­
ing from hot coolant by following these
steps.
- Turn
off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise direction while ap ­
plying light, downward pressure on the
top of the cap.
Checking and filling 221
-To avoid being burned, do not spill anti­
freeze or coolant on the exhaust system
or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­
ant can catch fire .
(D Note
Do not add any type of radiator leak seal­
ant to your vehicle 's engine coolant. Add-
ing radiator repair fluid may adversely af­
fect the function and performance of your
cooling system and could result in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS <=>.&. in Working in the engine compart­
ment on page 213.
"'Turn off the engine.
"'Let the engine cool down .
"' Place a thick rag over the coolant expansion
tank
<=> page 220, fig. 191 and carefully
twist the cap counter-clockwise <=>_& .
"'Add coolant mixed in the correct ratio
<=> page 220, Coolant.
"'Twist the cap on again tightly.
Replacement engine coolant must conform to
exact specifications <=>
page 220, Coolant.
We recommend using only coolant addi-
tive G12++, G13 or in an emergency G12+. Do
not use a different additive. In an emergency
use plain water until you can get the correct
additive and can restore the correct ratio. This
should be done as soon as possible.
If you have lost a considerable amount of
coolant , then you should add cold antifreeze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling.
Do not fill coolant above the "MAX" mark. Ex -
cess coolant will be forced out through the ..,.
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