2016 AUDI A4 coolant reservoir

Checking and Filling
-To reduce the risk of being burned, never
open the hood if you see or hear steam or
coolant escaping from the engine compart­
ment . Wait until no steam or coolant can be
seen or heard before carefully opening the hood.
- Keep children away from the engine com­ partment.
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxiliary
electric fan is temperature controlled and
can switch on suddenly .
- Never open the coolant reservoir cap when
the engine is still warm. The coolant system is pressurized and hot coolant could spray
out.
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the coolant reservoir.
- Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
- If work on the fuel system or the electrical
system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or open
flames. Fluids in the engine compartment could start a fire.
- Keep an approved fire extinguisher imme­
diately available.
- To avoid electrical shock and personal injury
while the engine is running or being started,
never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system .
- If you must perform a check or repair with
the engine running:
- First, fully apply the parking brake, move
selector lever of automatic transmission
204
to "P" (Park); put manual transmission in
Neutral.
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts or
other moving parts, or from contacting hot parts . Tie back hair before starting,
and do not wear clothing that will hang or
droop into the engine.
- Minimize exposure to emission and chemi­
cal hazards
c::> /.1. .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents, and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and
reproductive harm . In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
- Battery posts, terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms .
Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container or
filler opening, otherwise serious damage to
vehicle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly . If you
see spots from oil or other vehicle fluids, have
your vehicle inspected by an authorized Audi
dealer.

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Checking and Filling
Engine compartment
Engine compartment
These are the most important items that you can check.
Fig. 181 Typical layout for containers and e ngin e oil fille r cap
(D Eng ine o il filler cap ( @ Jump start po int(+) under a cover
@ Brake fluid reservoir
((0) ...... .
@ Coolant expansion tank (- L) .... .
® Jump start point( -) with hex head 207
214,251
211 210
screw . . . . . . . . . . . . . . . . . . . . . . . 214, 251
@ Windshield/headlight* washer con-
tainer
(W) . . . . . . . . . . . . . . . . . . . 216
The position of the engine oil filling hole
c:> fig. 181 (item @) can differ depending on the
engine design .
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN­
INGS
c:> &. in Working in the engine compart­
ment on page 203.
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci­
fications.
The service interval display in the instrument
cluster of your vehicle will inform you when it is
time for an oi l change . We recommend that you
have your oi l changed by an authorized Audi Serv­
ice Advisor.
If you have to top off the oil between oil changes,
use the Audi oil quality standard specified in the
table .
Audi oil quality standard
Gasoline
VW 502 00 or
engine vw 504 00
205

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-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.
- Antifreeze is poisonous. Always store anti­
freeze in its original container and well out
of the reach of children.
- If you drain the coolant, it must be caught
and safely stored in a proper container
clearly marked "poison".
(D Note
-Do not add coolant if the expansion tank is
empty . Air could enter the cooling system
and damage the engine. If this is the case,
do not continue driving. Seek professional
assistance.
- Coolant pollutes the environment and could
cause an engine fire. Excess coolant will be
forced out through the pressure relief valve
in the cap when the engine becomes hot.
- If, in an emergency, only water can be add­
ed, the correct ratio between water and an­
tifreeze
c::> page 208 must be restored as
soon as possible.
@) For the sake of the environment
Drained coolant should not be reused. Always
dispose of used coolant while observing all
environmental regulations.
Radiator fan
The radiator fan switches on automatically by it­
self.
The radiator fan is driven by the engine via the V­
belt . The viscous clutch regulates the speed of
the fan according to the temperature of the cool­
ant.
An auxiliary electric radiator fan* switches on and
off depending on coolant temperature and other
vehicle operating conditions.
After you switch the engine off, the auxiliary fan
can continue running for up to 10 minutes -even
Checking and Filling
with the ignition off. It can even switch on again
later by itself
c::> & , if
- the temperature of the engine coolant rises due
to the heat build-up from the engine in the en­
gine compartment, or
- the engine compartment heats up because the
vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury never
touch the radiator fan.
- The auxiliary electric fan is temperature
controlled and can switch on suddenly even
when the engine is not running.
- The auxiliary radiator fan switches on auto­
matically when the engine coolant reaches a
certain temperature and will continue to run
until the coolant temperature drops.
Brake fluid
Checking brake fluid level
The broke fluid level con be checked with o quick
glance .
Fig. 185 En gi ne compartmen t: Cover on the b rake fl uid
reservoir
Before you check anything in the engine compart ­
ment,
always read and heed all WARNINGS
c::> _.& in Working in the engine comportment on
page 203.
.,. Read the brake fluid level from the brake fluid
reservoir
c::> fig. 185, c::> page 205, fig . 181 . The
brake fluid level must be between the "MIN"
and "MAX" markings.
211

Checking and Filling
the energy m anag ement functions correctly after
replacing the battery.
I f it is not poss ible to use a battery of th is type,
the new battery must have the same capacity,
voltage (12 -volts), amperage, construction and
p lug sealing .
When insta lling the batte ry, make sure the igni­
tion and all elec trical consumers are turned off.
CD Note
Ma ke sure the ventilation hose on the side of
t he batte ry is connected, othe rw ise f umes or
bat tery acid can lea k out.
@ For the sake of the environment
Because of the prob lem of proper dispo sal of
a ba tte ry, we recommen d your author ized
Audi de aler change the battery fo r you . Bat­
teries contain su lf u ric acid and lea d and must
always be disposed of properly in compliance
w ith all environmental regu lations. D ispos ing
of vehicle batteries improperly is very danger­
ous to the env ironment.
Windshield/headlight*
washer container
F ig. 1 87 Engine co mpar tment : Cove r o n th e w ind shie ld
and head lig ht ' was her fluid conta iner
The washer fl uid containe r is m arked with the
symbo l
O on its cap ~ fig. 187, ¢ page 205,
fig . 181 .
.,. Befo re yo u check anything in the engine com­
partment,
alway s read and heed all WARN­
INGS ¢,& in Working in the engine compor t­
ment on page 203.
216
.,. Lift the filler cap tongue to add washe r fl uid.
You ca n fill the conta iner to the top.
.,. Press the cap back onto the filler neck after fill -
ing the container .
You can find the reservoir
capacit y in the table in
~ page 256.
Clean water should be used when filling up . If
possib le , use soft wate r to prevent scaling on the
washer jets. Always add a glass cleaner solution
(with frost p rotection in the winter) .
CD Note
Do not mix engine coolant antifreeze or any
other additives to fill up the winds hield wash­
er reservoir.

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0 ::..:: co ..... ..... Index
Garment hooks . . . . . . . . . . . . . . . . . . . . . . . . 66 Hood
Gas discharge lamps . . . . . . . . . . . . . . . . . . . 249
Gauges Engine coolant temperature . . . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 11
Gear recommendation . . . . . . . . . . . . . . . . . . 27
Gearshift indicator . . . . . . . . . . . . . . . . . . . . . 26
Gearshift lever
6-speed manual transmission . . . . . . . . . . . 90
General illustration
Instruments and controls . . . . . . . . . . . . . . . 8
Generator Warning/indicator lights . . . . . . . . . . . . . . . 16
Glossary of tire and loading terminology . . 219
Glove compartment . . . . . . . . . . . . . . . . . . . . 66
Valet parking . . . . . . . . . . . . . . . . . . . . . . . . 44
GPS controlled clock . . . . . . . . . . . . . . . . . . . . 12
Gross Vehicle Weight Rating (GVWR) . . . . . 255
Ground clearance . . . . . . . . . . . . . . . . . . . . . 189
H
Head lights
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Headlights Cleaning system . . . . . . . . . . . . . . . . . . . . . . 54
Defective . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Headlight range control . . . . . . . . . . . . . . . 21
L eft hand drive, right hand drive . . . . . . . . . 50
Travel mode . . . . . . . . . . . . . . . . . . . . . . . . . SO
H eadlight washer reservoir . . . . . . . . . . . . . 216
Head restraints . . . . . . . . . . . . . . . . . . . . . . . 124
Adjusting .. .. .... ...... ... .. . 61, 62, 124
Removing/installing . . . . . . . . . . . . . . . . . . 62
Heated Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 51
rear window .. ................. .... .. 78
seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
windshield washer spray nozzles . . . . . . . . 54
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
H eavy clothing and safety belts . . . . . . . . . . 132
High beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
H igh voltage warning label . . . . . . . . . . . . . 255
Hill descent control . . . . . . . . . . . . . . . . . . . . 94
Homelink (garage door opener) . . . . . . . . . . 44 Opening
203
Release lever . . . . . . . . . . . . . . . . . . . . . . . 203
Hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
How are chi ld restraint system anchors relat-
ed to child safety . . . . . . . . . . . . . . . . . . . . . 171
How many air bags does my vehicle have? . . 144
How safety belt pretensioners work . . . . . . 136
I
Ignit ion
switching on/off . . . . . . . . . . . . . . . . . . . . . 80
Ignition key Emergency unlocking . . . . . . . . . . . . . . . . . . 34
Ignit ion lock . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 18
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . 22
Imbalance (wheels) . . . . . . . . . . . . . . . . . . . 225
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Importantthingstodobeforedriving .. .. 121
Improperly worn safety belts . . . . . . . . . . . 136
Ind icator lights . . . . . . . . . . . . . . . . . . . . . . . . 13
Airbag system . . . . . . . . . . . . . . . . . . . . . . 148
Dynamic steering . . . . . . . . . . . . . . . . . . . . 181
PASS ENG ER AIR BAG OFF . . . . . . . . . . . . . 148
also refer to Warning/indicator lights . . . . 13
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . . 163
Inflatable spare tire . . . . . . . . . . . . . . . . . . . 238
Inflating . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Inflation pressure (tires) . . . . . . . . . . . . . . . 227
Installing the upper tether strap on the an-
chorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjusting the lighting . . . . . . . . . . . . . . . . . 51
Instruments and contro ls
General illustration . . . . . . . . . . . . . . . . . . . . 8
Interior lights
Front...... ... . ... ................ .. 51
R ear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Intermittent (windshield wipers) . . . . . . . . . 54
]
Jump-starting 250
Jumper cables . .. .. ............... .. .. 251
267

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0 ::..:: co ..... ..... Unlocking/locking at the lock cylinder. . . . . . . . . . . . . . . . . . . .
36
by remote control . . . . . . . . . . . . . . . . . . . . 34
with the central locking switch . . . . . . . . . . 35
with the convenience key . . . . . . . . . . . . . . . 34
Use of jumper cables . . . . . . . . . . . . . . . . . . 251
V
Valet parking . . . . . . . . . . . . . . . . . . . . . . . . . 44
Vanity mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 53
Vehicle
Care/cleaning . . . . . . . . . . . . . . . . . . . . . . .
193
Out of service . . . . . . . . . . . . . . . . . . . . . . . 197
Veh icle control modules......... .. .. .. . 176
Vehicle electrical system . . . . . . . . . . . . . . . . 16
Vehicle identification label . . . . . . . . . . . . . 255
Veh icle Identification Number (V IN) . . . . . . 255
Vehicle jack . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Vehicle key . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Vehicle shut-down . . . . . . . . . . . . . . . . . . . . 186
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . 23 7
Vent ilation . . . . . . . . . . . . . . . . . . . . . . . . . . .
76
Warning/indicator lights . . . . . . . . . . . . . . . . 13
A irbag system . . . . . . . . . . . . . . . . . . . . . . . 19
Anti-lock braking system (ABS) . . . . . . . . . . 19
Brake system . . . . . . . . . . . . . . . . . . . . . . . . 15
Electromechanical parking brake . . . . . . . . 16
Electronic power control . . . . . . . . . . . . . . . 20
Electronic Stabilization Control ( ESC) . . . . . 18
Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Malfunction Indicator Lamp (MIL) . . . . . . . 20
Safety belt . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Safety systems . . . . . . . . . . . . . . . . . . . . . . . 19
Turn signa ls . . . . . . . . . . . . . . . . . . . . . . . . . 22
Warning/Indicator lights
Airbag system . . . . . . . . . . . . . . . . . . . . . .
148
Warranty coverages . . . . . . . . . . . . . . . . . . . 258
Washer reservoir . . . . . . . . . . . . . . . . . . . . . 216
Washing matte finish paint . . . . . . . . . . . . . 193
We ights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
What happens if you wear your safety belt too
loose? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
134
What happens to unbelted occupants? . . . . 131
Index
What impairs driving safety? . . . . . . . . . . . . 122
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . 232
Wheels .... .. .. .. .. ............... .. 217
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Glossary of tire and loading terminology . 219
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Tires and vehicle load limits . . . . . . . . . . . 229
When must a safety belt be replaced? . . . . 132
When must the a irbag system be inspected? .148
Window regulators . . . . . . . . . . . . . . . . . . . . .
41
Power locks . . . . . . . . . . . . . . . . . . . . . . . . . 42
Windows
Cleaning/removing ice . . . . . . . . . . . . . . . .
195
defrosting . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Windshield
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54
defrosting . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Windsh ield washer fluid
Low leve l . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
Windshield washer system . . . . . . . . . . . . . . 54
Windshield wipers
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
Folding up . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 21
Replacing windshield wiper blades . . . . . . . 56
Switching on/off ... ...... ....... .. .. . 54
216
Washer reservoir
Winter driving Snow chains . . . . . . . . . . . . . . . . . . . . . . . .
233
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Winter operation
Coolant system . . . . . . . . . . . . . . . . . . . . .
208
Defrosting windows . . . . . . . . . . . . . . . . . . . 78
Seat heating . . . . . . . . . . . . . . . . . . . . . . . . . 78
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Winter tires. . . . . . . . . . . . . . . . . . . . . . . . . . 232
Winter use
Car washes . . . . . . . . . . . . . . . . . . . . . . . . .
193
Removing ice from windows 195
X
Xenon head lights .. ............. 48, 50, 249
273