engine overheat AUDI A7 2016 Owners Manual

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-Never open the engine hood if you see or
hear steam, or if you see engine coolant
dripping from the engine compartment. You
could burn yourself. Let the engine cool off
first until you can no longer see or hear steam or coolant escap ing .
Q) Note
-Mounting additional lights or accessories in
front of the air inlets reduces the cooling ef­
fect of the radiator. At h igh outside temper­
atures or high engine load, the eng ine could
overheat.
- The front spo iler has been designed to prop­
erly distribute the cooling air when the veh i­
cle is moving. If the spoiler is damaged, this
could reduce the cooling effect and the en­
gine could then overheat. Ask your author­
ized Audi dealer for assistance.
Tachometer
The tachometer displays the engine speed in rev­
olutions per minute (RPM).
You shou ld shift to the next lowest gear when the
speed is below 1500 RPM . The beginn ing of the
red zone in the tachometer indicates the maxi­
mum permissible engine speed for all gears once
the engine has been broken in and when it is
warmed up to operating temperature. Before reaching the red zone, you should shift into the
next h igher gear, choose the Dor S selector lever
position, or remove your foot from the accelera­
tor pedal.
CD Note
The tachometer needle© c::> page 10, fig. 3
should only be in the red zone briefly: other­
w ise, this increases the risk of engine dam-
age. The location where the red zone beg ins
varies depend ing on the eng ine.
@, For the sake of the environment
Upshift ing early helps you to save fuel and re­
duce operating noise.
In strum ent s a nd indicato r li ghts
Fuel level
The fue l gauge only works when the ignition is
on. If the fue l level drops below 2.6 gallons (10
liters), the bottom LED turns red and the indica­
tor light
t]J turns on c::> page 21. The bottom
LED blinks red when the fuel leve l is very low .
T he possible range based on the current f uel lev­
el is shown in tab@c::>
page 23, fig . 4 .
For the tank capacity in your veh icle, refer to the
T echnical Data c::>
page 2 72.
CD Note
Never drive until the tank is completely emp­
ty. The irregular supply of fue l that resu lts
from t hat can cause the eng ine to misfire. Un­
combusted fuel w il l then enter the exhaust
system . This can cause overheat ing and dam­
age to the catalytic converter.
Indicator lights
Description
The ind icator lights in the instrument cluster
blink or turn on. They indicate funct ions or ma l­
funct ions c::>
.&,.
Messages may appear with some indicator lights .
A warn ing s ignal will sound at the same time.
T he ind icator lights and messages in the cente r
of the displays may be replaced by other d isplays .
T o show them again, se lect the tab for ind icator
lights and messages using the m ultifunction
steering wheel c::>
page 23. If there are several
malfunctions, you can display them one at a time
using the thumbwheel.
Some indicators lights in the display can turn on
in several colors.
A WARNING
- Failure to heed warning lights and other im­
portant veh icle information may result in
serious personal injury or veh icle damage.
- Whenever stalled or stopped for repair,
move the vehicle a safe d istance off the
road, stop the engine, and turn on the emer-
gency flasher c::>
page 46. .,,.
11

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@ Tips
For additional information on the diesel par­
ticulate fi lter, refer to ¢
page 198.
!?) Engine speed limitation
App lies to vehicles: with e ngin e speed limitat ion
Ill Engine speed maximum XXXX RPM
The engine speed is automatically limited to the
speed displayed in the instrument cluster. This
protects the eng ine from overheating.
The engine speed limitation deactivates once the
engine is no longer in the critical temperature
range and you have released the accelerator ped­
al.
If the engine speed limitation was activated by
an engine control malfunction, the
Im indicator
light also turns on. Make sure that the speed
does not go above the speed d isplayed. Drive to
an authorized Audi dealer or authorized Audi
Service Facility immediately to have the malfunc­
tion corrected .
.., Engine oil sensor
• Oil level! Sensor defective
If the symbol illuminates, contact your author­
ized Audi dealer and have the oil sensor inspect ­
ed. Until you have th is done, check the oil level
each time you refuel just to be on the safe side
¢page 222.
f Engine warm-up request
n Please warm up engine
Fuel has entered the engine oil, either from low
outside temperatures or frequent short d rives.
Drive until the engine is warm so that the fuel in
the eng ine oi l wi ll evaporate. Avoid high eng ine
speeds, full accelerating and heavy engine loads
when doing this .
Bil Fuel tank system
Ii] Please refuel
Instruments and indicator lights
If the indicator light turns on for the first time
and the message appears, there are about 2.6
gallons (10 liters) of fue l left in the tank.
Ii] Fuel tank system malfunction! Contact deal­
er
T he re is a malfunction in the fuel tank system.
Drive to an authorized Audi dealer or authorized
Audi Serv ice Facility immediately to have the
malfunction corrected .
{!) Tips
More information on refueling is available on
page
¢ page 212.
• Washer fluid level
m Please refill washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off ¢
page 231.
• Windshield wipers
m Windshield wiper defective
There is a malfunction with the windsh ield wip­
ers .
Drive to an authorized Audi dealer or authorized
Audi Serv ice Facility immediately to have the
malfunction corrected .
~/0$ Defective light bulb warn ing
If the J:!1 ind icator light turns on, a light has
failed. The message ind icates the location of the
light. If the
[tD indicator light a lso turns on, then
a rear fog light has failed. The position of the in­
dicator light corresponds with the location on the
vehicle.
Drive to an authorized Audi dealer or authorized
A udi Service Facility immed iately to have the
malfunction corrected.
Vehicle lights: Malfunction
There is a malfunction in the headlights or the
light switch.
21

Automatic transmission
-Do not ride the brakes or press the brake
pedal too often or too long when driving
down a hill. Constant braking causes the
brakes to overheat and substantially re­
duces braking performance, increases brak­
ing distance or causes complete failure of
the brake system .
- To prevent the vehicle from rolling back
when stopping on inclines, always hold it in
place with the brake pedal or parking brake.
- Never hold the vehicle on an incline with a
slipping clutch. The clutch opens automati­
cally when it becomes too hot from the
overload . An indicator lamp
mJ illuminates
and a driver message appears¢
page 112
when the clutch is overloaded.
-If the engine must remain running, never
have any driving position engaged when
checking under the hood. Make sure these­
lector lever has securely engaged and is
locked in P with the parking brake set
¢page 218. Otherwise, any increase in en­
gine speed may set the vehicle in motion,
even with the parking brake applied.
@ Note
- When stopping on an incline, do not try to
hold the vehicle in place by pressing the ac­
celerator pedal while a driving gear is se­ lected . This can cause the transmission to
overheat and can damage it . Activate the
parking brake or press the brake pedal to
prevent the vehicle from rolling.
- Allowing the vehicle to roll when the engine
is stopped and the selector lever is in N will
damage the transmission because it is not
lubricated under those circumstances.
@ Tips
For safety reasons, the parking brake is re­
leased automatically only when the driver's
safety belt is engaged in the buckle.
110
· Hill descent control
Hill descent control assists the driver when driv­
ing down hills .
Hill descent control is activated when the selec­
tor lever is in the D or S posi tion and you press
the brake pedal. The transmission automatically selects a gear that is suitable for the incline . Hill
descent control tries to maintain the speed ach­
ieved at the time of braking, within physical and
technical limitations. If may still be necessary to
adjust the speed with the brake pedal.
Hill descent control switches off once the hill lev­
els out or you press the accelerator pedal.
On vehicles with a cruise control system*
¢
page 83, hill descent control is also activated
when the speed is set.
A WARNING
Hill descent control cannot overcome physical
limitations, so it may not be able to maintain
a constant speed under all conditions. Always be ready to apply the brakes.

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Corro sion
There may be a tendency fo r dirt to bui ld up on
the brake pads and corrosion to fo rm on the discs
if the car is not driven regularly or only for short
trips with little use of the brakes.
If the b rakes are not used frequently, or if corro­
sion has formed on the discs, it is advisab le to
clean
off the pads and discs by braking firmly a
few times from a moderately high speed
c=> .&, .
Faults in the brake sy stem
If you should not ice a sudden increase in brake
pedal travel, then one of the two brake circuits
may have fai led
c=> .&, .
Low brake flu id level
Malfunct ions can occur in the brake system if the
brake fluid level is too low. The brake flu id leve l is
monitored e lectronically.
Br ake boo ste r
The brake booster works w ith vacuum pressure
which is created only when the engine is running
~ ,& .
Brake lining wear sta tu s
Brake lining wear may be checked by visual in­
spection of the condition of the brake pads
through the openings in the wheel. If necessary,
the wheel may be removed for this inspection
c=> page 2 55, Replacing wheels.
.8, WARNING -
- New brake pads don't have the best stop­
ping power and must be "broken-in" during
the initial 250 mi les ( 400 km) . You can com­
pensate for this by pressing the brake peda l
more firmly. This a lso applies later when
new pads are installed.
- You should perform braking maneuvers for
the purpose of clean ing the brake system
only if road conditions perm it. Other road
users must not be put at risk -you may
cause an accident!
- Before descending a steep grade, reduce
speed and shift transmiss ion into a lower
gear or lower driving range. Do not ride the
In te llig ent T echnolog y
brakes or hold the peda l down too long o r
too often. This could cause the brakes to get
hot and dimin ish braking effic iency.
- Do not "ride the brakes" by rest ing your foot
on the pedal when you do not intend to
brake. This may cause the brakes to over­
heat, premature wear and increased stop­
ping distance .
- Under certain cl imatic and operat ing condi­
tions such as passing through water , dr iv ing
in heavy rain or afte r washing the veh icle,
the effect iveness of the brakes can be re ­
duced. In winter, ice c an accumulate on the
b rake pads, lin ings, discs and drums. Care­
fu lly apply brakes for a test . Brakes will dry
and ice coatings will be cleaned
off after a
few ca reful brake app lications.
- Driving for an extended period of t ime on
salt-covered roads without using your
brakes can a lso affect braking efficiency.
Clean
off accumulated salt coating from
brake discs and pads with a few careful
brake applications.
- If you damage the front spoiler, or if you in­
stall a different spoiler, be su re the air f low
to the front brakes is not obstructed . Other­
wise the brake system could overheat reduc­ ing the effect iveness of the entire brake sys­
tem.
- Fai lure of one brake circuit will impa ir th e
b rak ing capability res ulting in an increased
s topping distance. Avoid driving the vehicle
a nd have it towed to the nearest Aud i dea ler
or qualified workshop .
- Never let the vehi cle roll to a s top with the
engine shut
off .
- If the b rake booste r is no t working, the
b rake peda l must be pressed cons iderably
harder to make up for the lack of booster as­
sistance.
191

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CD Note
-Vehicle components such as the engine ,
transmission, suspension or e lectr ical sys­
tem can be severe ly damaged by driving
through water .
- Always switch the Start-Stop -System* off
when driving through water
c> page 80.
@ T ips
- Determine the depth before driving through
water.
- Do not stop the vehicle, drive in reverse or
switch the eng ine off when driving through
water.
- Keep in mind that oncoming vehicles may
create waves that raise the water level and
make it too deep for your vehicle to drive
through safely.
- Avoid driving through sa lt water (corrosion).
Catalytic converter
Applies to vehicles: with gasoline engine
It is very impor tan t tha t your emission control
system (catalyti c converter) is functioning prop­
erly to ensure that your vehicle is running in an
environmentally sound manner .
... Always use lead-free gasoline c> page 210,
F uel supply .
... Never run the tank down all the way to empty .
.,. Never put too much motor oil in your engine
c> page 222, Adding engine oil~-
.,. Never try to push- or tow-start your veh icle.
The catalytic converter is an eff icient "clean-up"
dev ice bu ilt into the exhaust system of the vehi­
cle . T he catalytic converter burns many of the
pollutants in the exhaust gas before they are re­
l eased into the atmosphere.
The exclusive use of unleaded fuel is cr itically im ­
portant for the life of the catalyt ic converte r and
proper functioning o f the eng ine .
A WARNING
The temperature o f the exhaust system is
high, both when driving and after stopping
the engine .
Driving and th e en vir onm ent
- Never touch the exhaust tail pipes once they
have become hot. Th is could resu lt in burns.
- Do not park or operate the vehicle in areas
where the hot exhaust system may come in contact w ith dry grass, brush, fuel spill or
other material which can cause a fire.
- Do not app ly additional undercoating or
rustproofing on or near the exhaust mani­
fold, exhaust pipes, catalytic converter or heat shields . During dr iving, the substance
used for undercoat ing could overheat and
cause a fire .
CD Note
-Be aware that just one tank filling with lead­
ed
fuel w ill already ser iously degrade the
performance of the catalyt ic converter .
- Do not exceed the correct engine oil level
¢ page 222.
-Do not drive until the fuel tank becomes
completely empty . The engine cou ld misfire .
Unburned fuel could also get into the ex­
haust system and this cou ld cause the cata­
lyt ic converter to overheat.
- Do not switch off the ignit io n while the veh i­
cle is movi ng.
- Do not continue to ope rate your veh icle un­
der these conditions, as othe rwise f uel can
reach the catalytic converter . This could re­
sult in overheating of the co nve rter , requ ir­
ing its replacement .
- T o assu re eff icient operation of the Emission
Contro l System:
- Have your vehicle maintained properly and
in accordance w ith the serv ice recommen­
dat ions in your Warranty
& Maintena nce
booklet .
- Lack of proper maintenance as we ll as im­
p roper use of the vehicle will impair the
function of the emission control system
and could lead to damage.
@ For the sake of the environment
Even when the Emiss ion Control System is op­
erating properly, the exhaust gas can have a
su lfu r-like exhaus t gas sme ll unde r some op­
erating states. Th is depends on the s ulf ur
197

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Reducing unnecessary idling
Even when your car is just idling it burns up fuel.
~ Shut the engine off when you are not driving
the vehicle.
~ Do not warm up the vehicle by letting the en-
gine run at idle .
The idling phase is automatically reduced for
veh icles with the Start-Stop-System . It is effi­
cient to switch off the engine in vehicles without
the Start-Stop-System when stopped at railroad
crossings and long red lights. Turning the engine
off for just 30-40 seconds saves more fuel than is
burned by starting the engine again.
It takes a long time for the engine to warm up
fully when it is running at idle . However, wear
and noxious emissions are especially high when
the engine is warm ing up. So you shou ld drive
away as soon as you start the engine and avoid
running at high rpms while the engine is still
warming up .
(D Note
Do not leave engine idling unattended after
starting. If warning lights should come on to
indicate improper operation, they would go
unheeded. Extended idling a lso produces
heat, wh ich could resu lt in overheating or oth­
er damage to the vehicle or other property.
Regular maintenance
A badly tuned engine unnecessarily wastes a lot of fuel.
~ Have your vehicle serviced at regular intervals.
By having your vehicle regularly serviced by an
Aud i dea ler helps to ensure that it runs properly
and economica lly. The condition of your vehicle
not only affects its safety and ability to hold its
value, it a lso affects fuel consumption .
Check your oil each time you fill your tank.
The amount of oil used is related to engine load
and speed.
Driving and the environment
It is normal for the oil consumption of a new en­
gine to reach its lowest value after a certain mile­
age has been driven.
You must drive your veh icle about 3,000 miles
(5,000 kilometers) before you can properly as ­
sess oil consumption .
T h is also applies to fuel consumption and engine
o ut put .
CD Note
- Have your vehicle maintained properly and
in accordance with the service recommenda­
tions in your Warranty
& Maintenance book­
let . Lack of proper maintenance as well as
improper use of the vehicle will impair the
function of the em ission contro l system and
cou ld 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 shields, sw itches, ignition wires,
valves, which are designed to protect your
vehicle's Emission Control System and other important vehicle components .
Fewer short trips
Fuel consumption will always be relatively high
on short trips .
~ Try to avoid dr iv ing short distances w ith a co ld
eng ine .
The engine and cata lytic converter have to reach
their optimal operating temperature to reduce
fuel consumpt ion and nox ious em issions effec­
t ively.
Just after starting, a co ld engine in a mid-size car
only achieves a fuel economy of 6-8 mi les 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 eng ine is
at its proper operating temperature and fuel
economy has reached a norma l level. So you can
see that you should avoid short trips whenever
poss ible. .,.
199

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braking effect to slow the vehicle. Use of the
brakes alone can cause them to overheat and fail.
Air suspension*
When driving with a trailer, activate the trailer
mode of the air suspension. Switch the air sus­
pension trailer mode on when you are towing a
trailer. This will limit the regulation by the air
suspension while driving. Select in the MMI:
ICARI function button > (Car)* systems control
button>
Vehicle settings> Air susp.: towing>
On.
Coolant temperature
The coolant temperature gauge c::> page 10 must
be observed carefully. The coolant temperature
can increase if you drive on long inclines in a low
gear at high engine speeds . Reduce your speed
immediately if the LEDs in the top part of the dis­
play turn on .
For more information about indicator lights, re­
fer to.
c::> page 15.
A WARNING
Anyone not properly restrained in a moving
vehicle is at a much greater risk in an acci­
dent . Never let anyone ride in your car who is
not properly wearing the restraints provided
by Audi.
Trailer mode notes
Important to know
-
Your vehicle handles differently when towing a trailer because of the additional weight and dif­
ferent weight distribution . Safety, performance
and economy will greatly depend on how careful­
ly you load your trailer and operate your rig.
Before you actually tow your trailer, practice
turning, stopping and backing up in an area away
from traffic . Keep practicing until you have be­
come completely familiar with the way your vehi­
cle-trailer combination behaves and responds.
Backing up is difficult and requires practice. Back­
ing up with a trailer generally requires steering
Trailer mode
action opposite to that when backing up your ve­
hicle without a trailer.
Maintain a greater distance between your vehicle
and the one in front of you . You will need more
room to stop. To compensate for the trailer, you
will need a larger than normal turning radius.
When passing, remember that you cannot accel­
erate as fast as you normally would because of
the added load. Make sure you have enough room
to pass. After passing, allow plenty of room for
your trailer before changing lanes again.
Avoid jerky starts, sharp turns or rapid lane
changes.
(D Tips
- Do not tow a trailer during the break-in peri­
od of your vehicle.
- If you tow a trailer, your Audi may require
more frequent maintenance due to the ex­
tra load
c::> page 2 7 4.
Parking on a slope
Do not park on a slope with a trailer. If it cannot
be avoided, do so only after doing the following:
When parking:
" Apply the foot brake.
" Have someone place chocks under both the ve­
hicle and the trailer wheels.
"With chocks in place, slowly release the brakes
until the wheel chocks absorb the load.
"Turn the wheels towards the curb.
... Apply the parking brake.
"Select the P selector lever position.
When restarting after parking:
"Apply the foot brake.
"Start the engine.
"Select the D/S selector lever position.
"Release the parking brake and slowly pull out
and away from the wheel chocks.
"Stop and have someone retrieve the wheel
chocks .
203

Checking and F ill in g
areas, into open streams or down sewage
drains.
- Recycle used engine o il by taking it to a used
engine oil collection facility in your area, or
contact a service station.
Cooling system
Coolant
T he engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from freezing in the winter .
The cooling sys tem is sealed and generally re­
qu ires little attention .
T he cooling system has been filled at the facto ry
with a permanent coo lant wh ich does not need to
be changed . T he coolan t consists of a mixture of
specially condit ioned water and the manufactur ­
er's glycol-based coolant addit ive Gl3 ant ifreeze
with a nticorrosion add itives (50% fo r USA mod­
e ls · 60% for Canadian mode ls). Thi s m ix tu re both
'
assures the ne cessary fros t protection and pro -
t ects meta l components in t he engine's cooling
system from corrosion and scaling. It a lso raises
the boiling point of the coolant.
D o not reduce the concentr ation o f the coo lant in
the summer by addi ng p la in water.
The propor­
tion of coolant additive must be at least 50 %
but not more than 60 %
to maintain antifreeze
protection and cooling efficiency .
If the coolant
frost protection is too low, the coolant could
freeze and damage the ve hicle heati ng and en­
g ine cooling system .
For year-round driving, antifreeze is added at the
factory for tempera tures down to:
- -3 1 °F (- 35°C)USA
- - 4 0 °F ( - 4 0 °C) Canada.
I f you must add coo lant, use a m ixt ur e of wate r
a nd coolant add it ive. Mixing the coolant additive
w ith d istilled w ate r is recommended.
_& WARNING
Before yo u check any thing in t he engine com­
par tment, always read and hee d all WA RN -
224
INGS ~ &. in Working in the engine compart­
ment on page 218.
(D Note
- Be fore wi nter sets in, have the coo lant
checke d to see if the coolant additive in you r
vehicle is sufficient to meet the climate con­ ditions. This is espec ia lly impo rtant if you
live in a region where the winter is extreme­
ly cold . If necessary, increase the p roportion
of coolan t addit ive to 60% .
- Whe n adding coolant additive to your cool­
ing system, remember:
- We re commend usin g on ly cool ant addi­
tive Gl2++ o r Gl3 (chec k the label) fo r
your ve hicle. This coo lant additive is avai l­
ab le at aut horized Aud i dea le rs . Othe r
types of ant ifreeze can significant ly re­
d uce co rrosion protection. The resulting
corrosion can cause a loss of coolant a nd
serious e ngine damage .
- Do not add any type of rad iator leak sealant
to your vehicle's engine coolant. Adding ra ­
diator repa ir fl uid may adverse ly affec t the
func tion and perfo rmance of your cooling
system a nd could result in d amage not cov­
ere d by yo ur N ew Vehi cle Lim ited War ranty.
Checking the engine coolant level
The engine coolant level can be checked with a
quick glance.
Fi g. 1 91 Eng ine co mpar tmen t: c over on t he coo la nt expa n­
sio n tan k
Befo re you check a nyth ing in the eng ine compart­
men t,
always read and he ed all WARNINGS
~ A in Working in the engine compartmen t on
page 218. ..,.

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~ Park your vehicle on a level surface.
~ Switch off the ignition .
~ Read the eng ine coolant leve l from the coolant
expansion tank
c> fig. 191, c> page 220,
fig. 188.
With a cold engine, the coolant level
should be between the "min" and "max" mark­
i ngs. When the engine is warm, the level may
be s light ly above the "max" marking.
The location of the coolant expans ion tank can be
seen in the engine compartment illustrat ion
i=>page220.
To obtain an accurate reading, the engine must
be sw itched
off.
The expansion tank in you r vehicle is equipped
with an electric coolant level sensor.
When the coo lant level is too low, the warning
light in the Auto-Check System
c:> page 15 wi ll il­
l uminate unti l you a dd coolant and the level has
been restored to norma l. Even though there is an
e lectric coolant level sensor, we still recommend
you check the coolant level from time to time.
Coolant loss
Coolant loss may i ndicate a leak in the coo ling
system . In the event of coo lant loss , the cooling
system should be inspected immed iate ly by your
author ized Audi dealer. It is not enough merely
to add coolant .
In a
sealed system, losses can occur only if the
boiling point of the coo lant is exceeded as a re­
sult of overheat ing.
A WARNING
The cooling system is under pressure and can
get very hot. Reduce the risk of scalding from
hot coolant by following thes e steps.
- Turn off the engine and allow it to coo l
dow n.
- Protect yo ur face, hands and arms from es­
caping fluid and steam by cove ring the cap
with a la rge, th ick rag.
- Turn the cap slowly and ve ry carefu lly in a
counte r-clockw ise direct io n wh ile a pplying
light, downwa rd pr essur e on the top of the
c ap.
Checking and Fillin g
-To avo id being burned, do not sp ill anti­
freeze o r coolant on the exha ust system or
hot engine parts. Under certa in cond itions,
the ethylene glyco l in engi ne coo lant can
ca tch fire.
(D Note
Do not add any type o f radiator leak sea lant
to you r vehicle 's engi ne coolant . Add ing radia­
tor repair fluid may adversely affect the func­
tion and pe rformance of your coo ling system
and could r esult in damag e not cover ed by
your New Veh icle Limited Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check a nyth ing in the eng ine compart­
me nt,
always read and heed all WARNINGS
c> .&. in Working in the engine compartment on
page 218.
~ Requirement: T here must be a residua l amount
of coolant in the expansion tank
c:> (D .
~Tu rnoff the engi ne.
~ Le t the eng ine cool down.
~ Place a thick rag ove r the coo lan t expansion
t ank
c:>page 224, fig. 191 and carefully tw ist
t he cap coun ter- clockwise
c:> .&, .
~ Ad d coo lant mixed in the correc t ra tio
c:> page 224, Coolant up to the MAX marking .
~ Make sure that the fl uid leve l remains stab le.
Add more coo lant if necessary.
~ Twist the cap o n again tightly.
Rep lacement engine coo lant must confo rm to ex­
act specifications
c> page 224, Coolant.
We recommend using only coo lant add it ive G1 2+
+ , G 13 or in an emergency G12+. Do
not use a
different additive. In an emergency use p lain wa­
ter unt il you can get the correct add itive and can
restore the correct ratio. This should be done as
soon as possib le.
If you have lost a considerab le amou nt of cool­
ant, then you shou ld add cold antifreeze and co ld
water only whe n the eng ine is co ld.
Always use
new engine coo lant w hen refilling.
225