Driving and the environment195
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Avoid driving at high speed
We advise you not to drive at the top speed permitted by the vehicle. Fuel
consumption, exhaust emissions and noise levels all increase very rapidly at
higher speeds. Driving at moderate speeds will help to save fuel.
Avoid idling
It is worthwhile switching off the engine when waiting in a traffic jam, at level
crossings or at traffic lights with a long red phase. The fuel saved after only
30 - 40seconds is greater than the amount of fuel needed to restart the
engine.
The engine takes a very long time to warm up when it is running at idling
speed. Mechanical wear and pollutant emissions are also especially high
during this initial warm-up phase. It is therefore best to drive off immediately
after starting the engine. Avoid running the engine at high speed.
Periodic maintenance
Periodic maintenance work guarantees that, before beginning a journey, you
will not consume more than the required amount of fuel. A well-serviced
engine gives you the benefit of improved fuel efficiency as well as maximum
reliability and an enhanced resale value.
A badly serviced engine can consume up to 10% more fuel than necessary.
Avoid short journeys
To reduce the consumption and emission of polluting gases, the engine and
the exhaust filtration systems should reach the optimum
service tempera-
ture .
With the engine cold, fuel consumption is proportionally higher. The engine
does not warm up and fuel consumption does not normalise until having
driven approximately four kilometres. This is why we recommend avoiding
short trips whenever possible. Maintain the correct tyre pressures
Bear in mind that keeping the tyres at an adequate pressure saves fuel. If the
tyre pressure is just 1 bar too low, fuel consumption can increase by as much
as 5%. Due to the greater rolling resistance, under-inflation also increases
tyre wear
and impairs handling.
The tyre pressures should always be checked when the tyres are cold.
Do not use winter tyres all year round as they increase fuel consumption by
up to 10%.
Avoid unnecessary weight
Every kilo of extra weight will put up the fuel consumption, so it is worth
checking the luggage compartment occasionally to make sure that no unnec-
essary loads are being transported.
A roof rack is often left in place for the sake of convenience, even when it is
no longer needed. At a speed of 100-120km/h your vehicle will use about
12% m ore fuel as a result of the extra wind resistance caused by the roof rack
even when it is not in use.
Save electricity
The engine activates the alternator, which produces electricity. With the need
for electricity, fuel consumption is also increased. Because of this, always
turn off electrical components when you do not need them. Examples of
components that use a lot of electricity are: the fan at high speeds, the rear
window heating or the seat heaters*.
Note
•If you vehicle has Start-Stop, it is not recommended to disconnect this
function.•It is recommended to close the windows when driving at more than 60
km/h
Trailer towing199
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Where possible, operate the trailer with the maximum permitted
drawbar
load on the ball joint of the towing bracket, but do not exceed the specified
limit.
Tyre pressure
Check the tyre pressures on your vehicle, and adjust for “full load” conditions
(refer to the sticker listing the tyre pressures on the door pillar). It may also be
necessary to adjust the tyre pressures on the trailer according to the recom-
mendations of the trailer manufacturer.
Exterior mirrors
Check whether you can see enough of the road behind the trailer with the
standard mirrors. If this is not the case you should have additional mirrors
fitted. The two exterior mirrors should be fitted on folding arms. Adjust the
mirrors to give sufficient rear vision.
Headlights
Before starting a journey, check the headlight beam settings with the trailer
hitched up. If necessary, alter the height of the headlight beams by means of
the headlight range control. See ⇒page 119.
Power supply
When you remove the ignition key, the power supply to the trailer is inter-
rupted.
Removable ball joint coupling
Vehicles with a factory-fitted towing bracket are equipped with a removable
ball joint coupling. This is stored in the spare wheel well in the luggage
compartment together with the necessary fitting instructions.
Note
If you frequently tow, we recommend you also have the vehicle serviced
between services.
Notes on towing
Towing a trailer involves additional attention by the driver.Weight distribution
The weight distribution of a loaded trailer with an unladen vehicle is very
unfavourable. However, if this cannot be avoided, drive extra slow to allow for
the unbalanced weight distribution.
Speed
The stability of the vehicle and trailer is reduced with increasing speed. There-
fore, it is advisable not to drive at the maximum permissible speed in unfa-
vourable road, weather or wind condit ions. This especially applies when
driving downhill.
You should always reduce speed immediately if the trailer shows the slightest
sign of swaying . Never try to stabilise the trailer by accelerating.
Anticipate hazards and brake in good time. If towing a trailer with an inertia
brake , first brake gently and then harder. This will prevent brake tapping by
the trailer wheels when they lock. Select a low gear in due course before
going down a steep downhill. This enables you to use the engine braking to
slow down the vehicle.
Swaying and pitching can be reduced by stabiliser aids. We recommend
having stabiliser aids installed when towing trailers with a high trailer weight.
They can be purchased and installed at a Technical Service.
Reheating
When climbing long hills in hot weather with the engine running fast in low
gear, you should keep an eye on the coolant temperature gauge ⇒page 60.
Reduce speed immediately if the needle moves to the right end of the scale.
If the temperature warning lamp
v in the instrument panel should start
flashing, stop the vehicle and let the engine cool down by running it at idling
speed for a few minutes.
exeo_EN.book Seite 199 Montag, 30. August 2010 4:45 16
Checking and refilling levels
230Make sure that the coolant fluid meets the required specifications
⇒ page 228, “Coolant fluid”. Do not use a different type of antifreeze if
G12++ antifreeze is not available. In this case, use only water and bring the
antifreeze concentration back up to the correct level as soon as possible.
Always top up with new coolant fluid.
Do not fill above the “max” mark. Excess coolant fluid is forced out of the
system through the valve in the filler cap when the engine gets hot.
If a lot of coolant fluid 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. Failure to comply could result in
burns.•The antifreeze and coolant fluid can be a health hazard. Therefore, the
antifreeze should be stored in the orig inal container in a safe place out of
reach of children. Failure to comply could result in 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 environ-
mental regulations).
Radiator fan
The radiator fan can start running spontaneously.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 some while if•Stored 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 radiator fan
may start running suddenly, leading to the risk of injury.
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Wheels and tyres243
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Run-flat tyres*
Run-flat tyres allow you to cont inue driving even with a punc-
tured tyre, in the majority of cases.In vehicles that are factory-fitted with run-flat tyres
3) the loss of tyre
pressure is indicated on the instrument panel.
Driving with run-flat tyres (emergency running)
– Leave the ESP/TCS (Electronic Stability Programme) switched on, or switch on ⇒page 68.
– Continue driving carefully and slowly (80 km/h maximum).
– Avoid sudden manoeuvres and sharp turns.
– Avoid driving over obstacles (for example kerbs) or potholes.
– Look out for the ESP/TCS intervening often, smoke coming from the tyres or the smell of rubber, the vehicle vibrating or a clat-
tering noise. If any of these occur, stop the vehicle.
The run-flat tyres have a tag on the side of the tyre, with the description:
“DSST”, “Eufonia”, “RFT”, “ROF”, “RSC”, “SSR” or “ZP”.
The sides of this type of tyre are reinforced. When the tyres lose air they are
supported on the sides (emergency driving).
The loss of pressure in the tyre is shown on the instrument panel. You can
then drive a maximum of 80 km and if the circumstances are favourable (for
example, low load), even more.
The damaged tyre should be changed as soon as possible. The rim should be
checked in a specialist workshop to detect possible damage and replace it if necessary. We recommend you contact Technical Service. If more than one
tyre is being used under emergency conditions, this reduces the distance
which can be travelled.
Starting driving in emergency conditions
When loss in tyre pressure is displayed on the instrument panel, this means
that at least one tyre is being driven in emergency conditions
⇒.
End of emergency operation
Do not drive on if:
•smoke is coming from one of the tyres,•there is a smell of rubber,•the vehicle vibrates,•there is a rattling noise.
When is it no longer possible to continue driving even using run-flat tyres?•If the Electronic Stability Programme (ESP) is out of operation.•If the tyre pressure monitoring system* does not work.•If one of the tyres has been severely damaged in an accident, etc. If a tyre
has been badly damaged there is a risk that parts of the tread can be thrown
off and cause damage to the fuel lines, brake pipes or fuel filler.•It is also advisable to stop driving if severe vibrations occur, or if the wheel
starts overheating and gives off smoke.WARNING
When driving in emergency conditions, the driving quality of the vehicle is
considerably impaired.•The maximum permitted speed of 80 km/h is subject to road and
weather conditions. Please observe legal requirements when doing so.•Avoid sharp turns and rapid manoeuvres, and brake earlier than usual.•Avoid driving over obstacles (for example kerbs) or potholes.
3)Depending upon version and country.
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Index
310Electronic Stability Programme
Description . . . . . . . . . . . . . . . . . . . . . . . . . 166
How the system works . . . . . . . . . . . . . . . . 185
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . 167
Emergencies Changing a wheel . . . . . . . . . . . . . . . . . . . . 249
Disconnecting the battery . . . . . . . . . . . . . 234
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247, 252
Sunroof emergency activation . . . . . . . . . . 113
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Tyre mobility system . . . . . . . . . . . . . . . . . . 248
Engine Running in . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Engine compartment Safety instructions . . . . . . . . . . . . . . . . . . . 224
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 Checking oil level . . . . . . . . . . . . . . . . . . . . 226
Consumption . . . . . . . . . . . . . . . . . . . . . . . . 226
Oil pressure too low . . . . . . . . . . . . . . . . . . . 78
Oil properties . . . . . . . . . . . . . . . . . . . . . . . . 226
Oil sensor defective . . . . . . . . . . . . . . . . . . . 80
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Engine speed governing . . . . . . . . . . . . . . . . . . . 80
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 Environmental friendliness . . . . . . . . . . . . 196
Roof racks . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Environmental tip Avoiding pollution . . . . . . . . . . . . . . . . . . . . 221
Environmentally friendly driving . . . . . . . . . . . 194 ESP
See Electronic Stability Programme . . . . . . 166
Exhaust gas purification system . . . . . . . . . . . 193
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 212
FFabric trim cleaning . . . . . . . . . . . . . . . . . . . . . 216
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Front drink holder . . . . . . . . . . . . . . . . . . . . . . . 147
Front passenger airbag deactivation . . . . . . . . . 44
Fuel Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Fuel level low . . . . . . . . . . . . . . . . . . . . . . . . . 80
Instantaneous fuel consumption . . . . . . . . . 85
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Fuel tank opening the fuel tank flap . . . . . . . . . . . . . 220
Fuel: save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Fuse Assignment . . . . . . . . . . . . . . . . . . . . . . . . . 259
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
GGear display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Gear shift pattern . . . . . . . . . . . . . . . . . . . . . . . 177
General overview of the engine compartment 295
Glove compartment . . . . . . . . . . . . . . . . . . . . . 153Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
GRA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174HHandbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Hazard warning lights . . . . . . . . . . . . . . . . . . . . 121
Head restraint Rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Head restraints Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Removing and fitting . . . . . . . . . . . . . . . . . 141
Headlight range control . . . . . . . . . . . . . . . . . . 119 Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Headlights Adaptive headlights . . . . . . . . . . . . . . . . . . 121
Automatic headlight control . . . . . . . . . . . 116
Automatic headlight control photosensors 116
Coming home function . . . . . . . . . . . . . . . . 118
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . 197
Front fog lights . . . . . . . . . . . . . . . . . . . . . . 117
Headlight range control . . . . . . . . . . . . . . . 119
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Index
314Steering
Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Manual steering wheel adjustment . . . . . . 166
Steering wheel controls . . . . . . . . . . . . . . . . . . . 91
Stopping the engine . . . . . . . . . . . . . . . . . . . . . 169
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Switches in the driver door Electric windows . . . . . . . . . . . . . . . . . . . . . 109
Symbols Red symbols in central display . . . . . . . . . . 77
Yellow symbols in central display . . . . . . . . 79TTailgateCentral locking system . . . . . . . . . . . . . . . . 103
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
TCS How the system works . . . . . . . . . . . . . . . . 188
Technical modifications . . . . . . . . . . . . . . . . . . 218
The danger of not using the seat belt . . . . . . . . 20
The environment Heated rear window . . . . . . . . . . . . . . . . . . 126
Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Warming up the engine . . . . . . . . . . . . . . . 168
Tightening torque of wheel bolts . . . . . . . . . . . 294
tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . 177, 183
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Tow starting General notes . . . . . . . . . . . . . . . . . . . . . . . 287 Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198, 287
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 200
Notes on towing . . . . . . . . . . . . . . . . . 198, 199
Removable towing bracket . . . . . . . . . . . . . 201
Technical requirements . . . . . . . . . . . . . . . 198
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . 293
Towing bracket, fitting . . . . . . . . . . . . . . . . . . . 207
Towing eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Towing eyes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Tow-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Traction control system How the system works . . . . . . . . . . . . . . . . 188
Trailer weights . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Trip recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Turn signal lamps Hazard warning lights . . . . . . . . . . . . . . . . . . 68
Trailer turn signals . . . . . . . . . . . . . . . . . . . . 67
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Tyre Mobility System . . . . . . . . . . . . . . . . . . . . . 254
Tyre mobility system . . . . . . . . . . . . . . . . . . . . . 248
Tyre pressure . . . . . . . . . . . . . . . . . . . . . 66, 90, 238 Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Tyre pressure monitoring . . . . . . . . . . . . . . . . . 239
Tyre pressure monitoring system . . . . . . . . . . . . 89
Tyre pressures . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Tyre repair kit Tyre Mobility System . . . . . . . . . . . . . . . . . . 254
Tyres and wheels Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 244 Tyres service life . . . . . . . . . . . . . . . . . . . . . . . . 241
Tyres tread depth . . . . . . . . . . . . . . . . . . . . . . . 242
Tyres with directional tread pattern . . . . . . . . . 238
UUnderbody protection . . . . . . . . . . . . . . . . . . . . 214VVehicle data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Vehicle identification data . . . . . . . . . . . . . . . . 292
Vehicle identification number . . . . . . . . . . . . . 292
Vehicle keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Vehicle Maintenance
Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Vehicle modifications . . . . . . . . . . . . . . . . . . . . 218
Vehicle paintwork Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 211
Products for vehicle maintenance . . . . . . . 209
Vehicle washing . . . . . . . . . . . . . . . . . . . . . . . . 210
Ventilation slits . . . . . . . . . . . . . . . . . . . . . . . . . . 17WWarning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Warning lamps Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Anti-lock brake system . . . . . . . . . . . . . . . . . 67
Electronic differential lock . . . . . . . . . . . . . . 67
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