2008 AUDI S5 cooling

Downloaded from www.Manualslib.com manuals search engine Checking and topping up fluids225
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data Countries with warm climate
The coolant concentration must not be reduced by adding plain
water, even in the summer or in warm climates. The concentration
of the anti-freeze additive must always be at least 40%.
Countries with cold climate
If greater anti-freeze protection is required in very cold climates, the
proportion of the anti-freeze additive G12+ can be increased. A
concentration of 60% offers protection down to about -40 °C. The
concentration of the antifreeze additive must not be more than 60%,
otherwise this would reduce the antifreeze protection. In addition,
the cooling effect will be adversely affected.
Vehicles for export to countries with a cold climate (such as Sweden,
Norway and Finland) are supplied with antifreeze protection down
to about -35 °C. The concentration of the antifreeze additive for
these countries should always be at least 50%.
Caution
•
It is advisable to have the cooling system checked before the
winter season to make sure that the antifreeze concentration is
adequate for the conditions to be expected. This applies particularly
if you intend to take the car into a colder climate zone. If necessary,
have the anti-freeze concentration increased to 50 - 60% as required.
•
Use only anti-freeze additive G12+, an additive meeting the spec-
ification “TL-VW 774 F ”. Other additives may give considerably infe-
rior corrosion protection. The resulting corrosion in the cooling
system can lead to a loss of coolant, causing serious damage to the
engine.
•
The coolant additive G12+ can be mixed only with additives G11
and G12.
Checking coolant level
The coolant level can be checked at a glance.– Switch off the ignition.
– Read off coolant level on radiator expansion tank
⇒fig. 215. When the engine is cold it should be between
the “MIN” and “MAX” marks. When the engine is hot it
may be slightly above the “MAX” mark.The coolant level should be checked with the engine switched off.
The coolant level is monitored by a warning lamp in the instrument
cluster ⇒page 32. However, we recommend that it should be
checked occasionally.
Coolant losses
Any loss of coolant normally indicates a leak in the cooling system.
In this case the cooling system should be inspected by a qualified
workshop without delay. It is not sufficient merely to top up the
coolant.
If there are no leaks in the system, a loss of coolant can only occur
if the coolant boils and is forced out of the system as a result of
overheating.
Fig. 215 Engine
compartment: Mark-
ings on radiator expan-
sion tank
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Downloaded from www.Manualslib.com manuals search engine Checking and topping up fluids 226
CautionRadiator sealants must not be added to the coolant. Such additives
could seriously impair the function of the cooling system.Topping up the coolant
Be careful when topping up coolant.– Switch off the engine.
– Wait for the engine to cool down.
– Cover the cap on the expansion tank ⇒page 225, fig. 215
with a cloth, and carefully unscrew the cap anti-clock-
wise ⇒.
– Add coolant.
– Screw the cap on again tightly.Make sure that the coolant meets the required specifications
⇒page 224, “Coolant”. Do not use a different type of additive if anti-
freeze additive G12+, G12 or G11 is not available. In this case use
only water and bring the coolant concentration back up to the
correct level as soon as possible by putting in the specified additive.
Always top up with fresh, unused coolant.
Do not fill above the “MAX” mark. Excess coolant is forced out of the
system through the valve in the filler cap when the engine gets hot.
If a lot of coolant has been lost, wait for the engine to cool down
before putting in cold coolant. Failure to do so could result in
serious engine damage.
WARNING
•
The cooling system is under pressure. Do not unscrew the cap
on the expansion tank when the engine is hot: you could be
scalded by escaping steam
•
The coolant and coolant additive can be a health hazard. Store
the coolant additive in the original container in a safe place out of
reach of children – risk of poisoning.For the sake of the environment
Drained off coolant should not be used again. Drain off the used
coolant into a suitable container and dispose of it in the proper
manner (observe environmental regulations).Radiator fan
The radiator fan can start running spontaneously.The radiator fan is driven by the engine via a poly V-belt. The speed
of the fan is varied by a viscous clutch according to the temperature.
There is also an auxiliary electric fan, which cuts in automatically
whenever the temperature of the coolant and the engine compart-
ment rises above a certain level.
The auxiliary fan can continue to run for as long as 10 minutes after
stopping the engine – even after the ignition is switched off. It may
also start running suddenly ⇒ after a while if•
residual heat raises the coolant temperature, or
•
the hot engine compartment is additionally heated up by the
sun.
WARNING
When working in the engine compartment be aware that the radi-
ator fan may start running suddenly – risk of injury.
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Downloaded from www.Manualslib.com manuals search engine Index285
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data Blower
Deluxe automatic air conditioner . . . . 94
Deluxe automatic air conditioner plus . .
102
Bonnet
Closing . . . . . . . . . . . . . . . . . . . . . . . . . 221
Opening . . . . . . . . . . . . . . . . . . . . . . . . 220
Releasing . . . . . . . . . . . . . . . . . . . . . . . 220
Boot
SeeLoading luggage compartment . 158
SeeLuggage compartment . . . . . . . . . 75
Boot lid
Central locking system . . . . . . . . . . . . . 48
Manual release . . . . . . . . . . . . . . . . . . . . 49
Brake system
Brake assist system . . . . . . . . . . . . . . . 187
Brake fluid . . . . . . . . . . . . . . . . . . . . . . 227
Brake light defective . . . . . . . . . . . . . . . 36
Brake pads worn . . . . . . . . . . . . . . . . . . 36
Brake servo . . . . . . . . . . . . . . . . . . . . . . 189
Electro-mechanical parking brake . . . 119
General notes . . . . . . . . . . . . . . . . . . . . 189
Malfunction . . . . . . . . . . . . . . . . . . . . . . 31
Warning lamp . . . . . . . . . . . . . . . . . . . . 19
Bulb holder
Bayonet fastener . . . . . . . . . . . . . . . . . 266
Bulb monitor . . . . . . . . . . . . . . . . . . . . . . . . 36
Bulbs
Bayonet fastener . . . . . . . . . . . . . . . . . 266
Changing (general notes) . . . . . . . . . . 265
Bulbs, changing . . . . . . . . . . . . . . . . . . . . 265
Brake lights . . . . . . . . . . . . . . . . . . . . . 269
Bulb holder with bayonet fastener . . 266Front fog lights . . . . . . . . . . . . . . . . . . 268
Number plate light . . . . . . . . . . . . . . . 274
Rear fog light . . . . . . . . . . . . . . . . . . . . 272
Rear lights . . . . . . . . . . . . . . . . . . . . . . 269
Reversing light . . . . . . . . . . . . . . . . . . . 272
Turn signals (rear) . . . . . . . . . . . . . . . . 269
Business equipment . . . . . . . . . . . . . . . . . 240
CCapacities . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Car keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Care of vehicle . . . . . . . . . . . . . . . . . . . . . . 210
Catalytic converter . . . . . . . . . . . . . . . . . . 195
Central locking system . . . . . . . . . . . . . . . . 42
Boot lid . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Deadlock mechanism . . . . . . . . . . . . . . 45
Fuel tank flap . . . . . . . . . . . . . . . . . . . . 217
Locking . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Locking and unlocking the vehicle from
inside . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Manual locking . . . . . . . . . . . . . . . . . . . . 47
Opening and closing windows . . . . . . . 50
Switches on driver's door . . . . . . . . . . . 46
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . 45
Changing a wheel . . . . . . . . . . . . . . . . . . . 250
Changing bulbs
SeeBulbs . . . . . . . . . . . . . . . . . . . . . . . 265
Chassis number . . . . . . . . . . . . . . . . . . . . . 279
Child safety . . . . . . . . . . . . . . . . . . . . . . . . 175
Child safety seat . . . . . . . . . . . . . . . . . . . . 176
Child seat categories . . . . . . . . . . . . . . 176
Fitting . . . . . . . . . . . . . . . . . . . . . . . . . . 179ISOFIX system . . . . . . . . . . . . . . . . . . . . 181
On front passenger's seat . . . . . . . . . . 176
Safety notes . . . . . . . . . . . . . . . . . . . . . 175
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . 85
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Cleaning Alcantara . . . . . . . . . . . . . . . . . . 216
Cleaning seat covers
Alcantara . . . . . . . . . . . . . . . . . . . . . . . . 216
Natural leather . . . . . . . . . . . . . . . . . . . 215
Textile covers . . . . . . . . . . . . . . . . . . . . 213
Cleaning textile covers and trim parts . . 213
Clock, setting . . . . . . . . . . . . . . . . . . . . . . . . 13
Closing
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Coat hooks . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Colour code . . . . . . . . . . . . . . . . . . . . . . . . 279
Compact temporary spare wheel
SeeSpare wheel . . . . . . . . . . . . . . . . . . 246
Compartment for (sun)glasses . . . . . . . . . 89
Compass in mirror . . . . . . . . . . . . . . . . . . . . 68
Controls and displays
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Convenience close function . . . . . . . . . . . . 50
Convenience open function . . . . . . . . . . . . 50
Cooling system
Anti-freeze additive . . . . . . . . . . . . . . . 224
Checking coolant level . . . . . . . . . . . . 225
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . 224
Coolant temperature gauge . . . . . . . . . 11
Malfunction . . . . . . . . . . . . . . . . . . . . . . 32
Radiator fan . . . . . . . . . . . . . . . . . . . . . 226
Topping up coolant . . . . . . . . . . . . . . . 226
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Downloaded from www.Manualslib.com manuals search engine Index 292Tyre repair kit . . . . . . . . . . . . . . . . . . . . . . 245
Tyre Mobility System . . . . . . . . . . . . . 247
Tyres
Inflation pressures . . . . . . . . . . . . . . . 232
Tread wear indicators . . . . . . . . . . . . . 234
Tyre service life . . . . . . . . . . . . . . . . . . 232UUniversal transmitter . . . . . . . . . . . . . . . . 145
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . 217
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Central locking system . . . . . . . . . . . . . 45VVehicle data sticker . . . . . . . . . . . . . . . . . 279
Vehicle identification data . . . . . . . . . . . . 279
Vehicle identification number . . . . . . . . . 279
Ventilation
Deluxe automatic air conditioner . . . . 91
Deluxe automatic air conditioner plus 99
Ventilation slots . . . . . . . . . . . . . . . . . . . . 158WWarning lamps . . . . . . . . . . . . . . . . . . . . . . 15
Airbag system . . . . . . . . . . . . . . . . . . . . 16
Anti-lock brake system . . . . . . . . . . . . . 17
Brake system . . . . . . . . . . . . . . . . . . . . . 19
Electro-mechanical parking brake . . . 18
Electronic stabilisation program . . . . . 16
Emission control system . . . . . . . . . . . 17Engine management . . . . . . . . . . . . . . 15
Seat belt . . . . . . . . . . . . . . . . . . . . . . . . . 17
Warning triangle . . . . . . . . . . . . . . . . . . . . 244
Washer fluid level low . . . . . . . . . . . . . . . . 36
Washing the vehicle
By hand . . . . . . . . . . . . . . . . . . . . . . . . 210
Car wash . . . . . . . . . . . . . . . . . . . . . . . . 210
With high-pressure cleaner . . . . . . . . 210
Waxing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Weights
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 281
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . 236
Wheel imbalance . . . . . . . . . . . . . . . . . . . 232
Wheels . . . . . . . . . . . . . . . . . . . . . . . . 212, 232
Changing . . . . . . . . . . . . . . . . . . . . . . . 250
Changing wheels round . . . . . . . . . . . 234
Window heating . . . . . . . . . . . . . . . . . 96, 104
Windows
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 212
De-icing . . . . . . . . . . . . . . . . . . . . . . . . 212
Malfunctions . . . . . . . . . . . . . . . . . . . . . 51
Windows (electric)
SeeElectric windows . . . . . . . . . . . . . . 49
Windscreen washer fluid . . . . . . . . . . . . . 231
Windscreen wiper and washer system . . 62
Windscreen wipers . . . . . . . . . . . . . . . . . . . 62
Changing blades . . . . . . . . . . . . . . . . . . 64
Defective . . . . . . . . . . . . . . . . . . . . . . . . 37
Service position . . . . . . . . . . . . . . . . . . . 64
Winter conditions
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 228
Care of vehicle . . . . . . . . . . . . . . . . . . . 210Cooling system . . . . . . . . . . . . . . . . . . 224
Defrosting windows . . . . . . . . . . . 96, 104
De-icing windows . . . . . . . . . . . . . . . . 212
Seat heating (deluxe automatic air
conditioner) . . . . . . . . . . . . . . . . . . . . 112
Seat heating for rear seats . . . . . . . . . 113
Snow chains . . . . . . . . . . . . . . . . . . . . . 237
Tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Windscreen washer . . . . . . . . . . . . . . . 231
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . 236
Wiper blades
SeeWindscreen wipers . . . . . . . . . . . . . 64
XXenon lights . . . . . . . . . . . . . . . . . . . . . . . 195
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