2016 AUDI A4 engine overheat

Check ing and F illing
@ For the sake of the environment
- Under no circumstances can the oil come in
contact with the sewage network or the soil.
- Observe and fo llow legal regulations when
disposing of empty oil containers .
Changing the engine oil
We recommend that hove your oil changed by on
authorized Audi dealer or a qualified service sta­
tion .
Before you che ck anything in the eng ine compart ­
ment,
always read and heed all WARNINGS ¢ A
in Working in the engine comportment on
page 203.
The engine oil must be changed according to the i n tervals specified in your Warranty
& Mainte­
nance booklet . This is very important because the
lubricat ing propert ies of oil diminish gradually
during normal vehicle use.
Under some circ umstances the eng ine oi l sho uld
be changed more frequently. Change oil more of­
ten if yo u drive most ly short distances, operate
the vehicle in dusty areas or under predominantly
stop-and-go traffic cond it ions , or have your vehi­
cle where temperatures remain below freezing
for extended periods .
Detergent additives in the oil will make fresh oil
look dark after t he engine has been run ning for a
short t ime . T his is normal and is not a reason to
cha nge the oil mo re often than recommended .
Because of the prob lem of proper disposal, along
with the special tools and necessary expertise re­
qu ired, we strongly recommend that you have
your oil c hanged by an aut ho rized
Audi dealer o r
a qualif ied se rvice station .
If you choose to change your o il yourself , please
note the following important informat ion:
A WARNING
To re duce the risk of pe rsonal injury if you
must c hange t he engine oil in your ve hicle
yo urs elf:
- W ear eye protection .
208
-
-To reduce the r is k of burns from hot engine
oil, let the engine cool down to the touch .
- W hen removing the oil drain plug with your
fingers, stay as far away as possible. Always
keep your forearm pa rallel to the ground to
he lp prevent hot oil from run ning down your
arm .
- Drain t he oil into a container designed for
this purpose, one large enough to hold at
leas t the tota l amou nt of oil in you r engine.
- Engi ne oil is poisonous . Keep it well out of
the reach of childre n.
- Continuous contact wit h used engine o il is
ha rmf ul to your skin. Always protect your
skin by washi ng oil
off thoroughly with soap
and wate r.
(D Note
Neve r mix oil additives with yo ur engine oil.
These additives can damage your e ngine and
adverse ly affect your A udi L imi ted New Vehi ­
cle Warranty .
@ For the sake of the environment
-Be fore chang ing you r oi l, first make sure
you know where you can properly dispose o f
t h e used oil.
- Always dispose of used e ngine o il pro perly .
Do not d ump it on garden so il, wooded
areas, into op en streams o r down sewage
drains.
- Recycle used e ngine o il by tak ing it to a used
eng ine oil collect io n fa cil ity in you r area, o r
c o nta ct a servi ce st ation .
Cooling system
Coolant '
The engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from free zing in the winter.
The coolin g system is sealed and generally re­
quires little attention .
The coo lin g sys tem h as been filled a t the fac to ry
wi th a pe rmanent coolan t which does not need to
be changed. The coo lant consists of a mixture of .,.

Check ing and F illing
blink until you add coolant and the level has been
restored to normal. Even though there is an e lec ­
tr ic coolant level sensor, we still recommend you
check the coo lant level from time to time.
Coolant los s
Coolant loss may indicate a l e ak in the cooling
system. In the event of coolant loss, the cooling
syst em should be insp ected immediately by your
authorized Audi dealer. It is not enough merely
to add coolant.
I n a
s e aled system, losses can occur only if the
boiling point of the coo lant is exceeded as a re­
sult of overheating.
A WARNING
The cooling system is under pressure and can get very hot. Reduce the risk of scalding from
hot coolant by following these steps.
- Turn off the eng ine and allow it to cool
down .
- Protect your face, hands and arms from es­
caping fluid and steam by covering the cap
with a large, thick rag.
- Turn the cap slowly and very carefully in a
counter-clockwise direction wh ile apply ing
l ight, downward pressure on the top of the
cap .
- To avo id being burned, do not sp ill anti ­
freeze or coolant on the exhaust system or
hot eng ine parts . Under certain conditions,
the ethy lene g lycol i n engine coolant can
catch fire.
{Q) Note
Do not add any type of radiator leak seala nt
to your veh icle's engine coolant . Adding radia­
to r repa ir fluid may adversely affec t the func­
tion and performance of yo ur 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 anyth ing in the eng ine compart­
ment,
a lwa ys re ad an d heed all WARNINGS
210
¢ A in Working in the engine compartment on
page 203.
Requireme nt: The re must be a res idual amount
of coo lant in the expans ion tank
~CD-
.,,. Turn off the engine .
.,,. Let the engine cool down.
.,,. Place a thick rag over the coolan t expa nsion
tank ¢ page 209, fig. 184 and
carefull y turn
the cap counter-clockwise ¢.&_ .
.,,. Add coo lant mixed in the correct ratio
~ page 208, Coolant up to the MAX marking.
.,,. Make sure that the fluid level remains stab le.
Add more coolant if necessary .
.,,. Twist the cap on aga in tightly.
Replacement engine coolant must conform to ex­
act specifications ¢ page 208, Coolan t.
We recommend using only coo lant additive
G l2 +
+ , Gl3
or in an emergency Gl2+. Do not use a
different additive . In an emergency use plain wa ­
ter unt il you can get the correct addit ive and can
restore the correct rat io. Th is should be done as
soon as possible.
If you have lost a considerable amount of cool­
ant, then you should add cold antifreeze and cold
water only when the engine is cold.
Always use new engine coo lant when refilling .
Do not fi ll coolant above the "MAX " mark. Excess
coolant will be forced out th rough the pressure
relief valve in the cap when the engine becomes
hot.
A WARNING
- The cooling system is under pressure and can get very hot. Reduce the risk of scalding
from hot coolant by following these steps.
- Turn off the engine and a llow 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 s low ly and very ca refully in a
counter-clo ckwise direction wh ile app ly ing
li ght, downward pressure on the top o f
the cap.
~

Emergency assistance
"'Let the compressor run until the va lue specified
on the tire pressure label is reach ed
¢ page 227, fig. 191 . Switch the compressor
off after running for 12 minutes at the mos t -
danger of overheating!
A WARNING
The compressor and the tire filler hose can become extremely hot while they are running
- danger of burns!
CD Note
Switch the compressor off after running for
12 minutes at the most -danger of overheat­
ing! Allow the compressor to cool down for a
few minutes before you use it again.
Replacing wheels
Before changing a wheel
Observe the following precaut ions for your own
and your passenger's safety when changing a
wheel.
"' After you experience a tire failure, pull the car
well away from moving traffic and try to reach
level ground before you stop ¢.&_ .
"' All passengers shou ld
leave the car and move
to a safe location (for instance, behind the
guardrail) ¢.&_ .
"' Engage the
parking brake to prevent your vehi­
cle from rolling unintentionally ¢&_ .
"' Sh ift into
1st gear on vehicles w ith manual
transmission, or move the
selector lever to the
P position
on vehicles with automatic transmis­
sion .
"' If you are towing a trailer: unhitch the trailer
from your vehicle.
"' Take the
jack¢ page 237 and the spare tire
¢ page 238 out of the luggage compartment .
A WARNING
You or your passengers could be injured wh ile
chang ing a wheel if you do not follow these
safety precautions :
- If you have a flat tire, move a safe distance
off the road . Turn off the engine, turn the
240
emergency flashers on and use other warn­
ing devices to alert other motorists.
- Make sure that passengers wait in a safe
place away from the vehicle and well away
from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the jack,
always fully set the parking brake and block
the wheel diagonally opposite the wheel be­ ing changed with the folding chocks or oth­
er objects . When one front whee l is lifted
off the ground, placing the Automat ic
T ransmission in "P" (Par k) w ill
not prevent
the vehicle from moving.
- Before you change a wheel, be sure the
ground is level and firm . If necessary, use a
sturdy board under the jack.
- Always store the vehicle tool kit, the jack*
and the replaced tire in the luggage com­
partment
¢ page 126.
CD Note
If you a re changing the wheel on a steep in­
cline, use a rock or similar object to block the
opposite wheel to prevent the vehicle from
moving.
(D Tips
Obey all laws.
Changing a wheel
When you change a wheel, follow the sequence
described below step-by-step and in exactly that
order .
1. Remove the decorative wheel cover* or the
wheel bolt caps* . For more details see also
¢ page 241, Decorative wheel covers or
¢ page 241, Wheels with wheel bolt cops.
2. Loosen the wheel bolts ¢page 242.
3. Locate the proper mounting point for the
jack and align the jack below that point
¢ page 242.
4. Lift the car with the jack¢ page 242.
5. Remove the wheel with the flat tire and then
install the
spare tire ¢page 243.
6. Tighten all whee l bolts lightly .