fuel consumption Seat Leon SC 2017 Owner's manual

Table of Contents
Automatic gearbox/DSG automatic gear-
bo x*
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Ad
dress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Run-in and economical driving . . . . . . . . . . . . . 199
Power management . . . . . . . . . . . . . . . . . . . . . . 201
Engine management and emission control sys-
tem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Driv

ing tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Driver assistance systems . . . . . . . . . . . . . . . . . 205
Start-Stop System* . . . . . . . . . . . . . . . . . . . . . . . 205
Auto Hold Function* . . . . . . . . . . . . . . . . . . . . . . 208
Cruise control system (CCS)* . . . . . . . . . . . . . . . 209
Emergency brake assist system (Front As-
sis
t)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Adaptive Cruise Control ACC* . . . . . . . . . . . . . . 214
Lane Assist system* . . . . . . . . . . . . . . . . . . . . . . 224
Traffic Jam Assist . . . . . . . . . . . . . . . . . . . . . . . . 227
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . 228
SEAT Drive Profile* . . . . . . . . . . . . . . . . . . . . . . . 230
Traffic sign detection system* . . . . . . . . . . . . . . 233
Fatigue detection (break recommendation)* . . 236
Parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Rear Assist “Rear View Camera”* . . . . . . . . . . . 243
Towing bracket device . . . . . . . . . . . . . . . . . . . . 246
Towing bracket device* . . . . . . . . . . . . . . . . . . . 246
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Care and maintenance . . . . . . . . . . . . . . . . . . . . 256
Accessories and modifications to the vehi-
cle
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Care and cleaning . . . . . . . . . . . . . . . . . . . . . . . 257
Vehicle exterior care . . . . . . . . . . . . . . . . . . . . . . 257
Caring for the vehicle interior . . . . . . . . . . . . . . 261
Checking and refilling levels . . . . . . . . . . . . . . . 264
Filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Engine compartment . . . . . . . . . . . . . . . . . . . . . 270 Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Windscreen washer reservoir . . . . . . . . . . . . . . 276
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Wheels
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . 279
Tyre monitoring systems . . . . . . . . . . . . . . . . . . 283
Temporary spare wheel . . . . . . . . . . . . . . . . . . . 286
Winter service . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Technical data . . . . . . . . . . . . . . . . . . . . . . . . 289
Technical specifications . . . . . . . . . . . . . . . . . . 289
Important . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Vehicle identification data . . . . . . . . . . . . . . . . . 289
Fuel consumption data . . . . . . . . . . . . . . . . . . . 290
Trailer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Engine data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
6

The essentialsMenuSubmenuPossible settingDescription
Mirrors and wind-
screen wipersMirrorsSynchronised regulation, lower the rear-view mirror when reversing, fold in after park-
ing, rear-view mirror heating, dim in the dark››› page 21,
››› page 151
Windscreen wipersActivate and deactivate automatic windscreen wipers in case of rain, wipe when re-
versing››› page 32
Opening and clos-
ing
Electric windows controlConvenience opening, automatic closure in case of rain, automatic closure with cen-
tral locking››› page 137
Central locking systemUnlocking doors, automatic lock/unlock when driving, “Easy Open” audible confir-
mation, “Easy Entry” convenient entry function, automatic opening of the rear lid, in-
terior monitoring››› page 125
Instrument panel–
Current consumption, average consumption, volume to refuel, convenience consum-
ers, ECO Advice, travelling time, distance travelled, average speed, digital speed dis-
play, speed warning, oil temperature, coolant temperature, reset data “when setting
off”, reset data for “total calculation”, traffic signal detection
››› page 36
Date and time–Time source, time, select time zone, time format, date, date format–
Units–Distance, speed, temperature, volume, fuel consumption, GNC consumption, electric
consumption, pressure–
Service–Chassis number, date of next SEAT service inspection, date of next oil change service››› page 44
Factory settings
AllRestore all settings–
IndividualLights, driver assistance, parking and manoeuvring, background lighting, rear view
mirrors and windscreen wipers, opening and closing, instrument panel– 
››› in CAR menu on page 120
35

The essentialsMenuFunction
Navigation
Information instructions from the acti-
vated navigation system: when a route
guidance is activated, the turning ar-
rows and proximity bars are displayed.
The appearance is similar to the Easy
Connect system.
If route guidance is not activated, the
direction of travel (compass) and the
name of the street along which you are
driving are shown
››› Booklet Naviga-
tion system.
Audio
Station display on the radio.
Track name on the CD.
Track name in Media mode ››› Booklet
Radio or ››› Booklet Navigation system.
Telephone
Information and possible configura-
tions of the mobile phone preinstalla-
tion ››› Booklet Radio or ››› Booklet Nav-
igation system.
Lap timer
In a racing circuit, measurement and
memorisation of lap times by the vehi-
cle and comparison with previously
measured best times ››› page 40.
Vehicle
statusDisplay of the current warning or infor-
mation texts and other system compo-
nents, according to equipment
››› page 33. Driving data
The MFD (multifunction display) shows differ-
ent
v

alues for the journey and the consump-
tion.
Changing between display modes on the
MFD
● In vehicles without multifunction steering
wheel:
Press the rocker switch  on the
wind s
creen wiper lever ››› Fig. 43.
● Vehicles with a multifunction steering
wheel:
turn the wheel ››› Fig. 44.
Multifunction display memory
The multifunction display is equipped with
three memories that work automatically: MFD
from departure, MFD from refuelling and MFD
total calculation. On the screen display, you
can read which memory is currently dis-
played.
● Toggle between memories with the ignition
on and the memory di

splayed: Press the
 button on the windscreen wiper lever
or the  button of the multifunction steering
wheel .
MenuFunction
MFD from
departure
Display and storage of the values for
the journey and the consumption from
when the ignition is switched on to
when it is switched off.
If the journey is continued in less than
2 hours after the ignition is switched
off, the new data is added to the data
already stored in the memory. The
memory will automatically be deleted if
the journey is interrupted for more than
2 hours.
MFD from refuellingDisplay and storage of the values for
the journey and the consumption. By
refuelling, the memory will be erased
automatically.
MFD total
calcula-
tion
The memory records the values for a
specific number of partial trips, up to a
total of 19 hours and 59 minutes or 99
hours and 59 minutes, or 1999.9 km or
9999 km, depending on the model of
instrument panel. On reaching either of
these limits a)
, the memory is automati-
cally erased and starts to count from 0
again.
a) It varies according to the instrument panel version.
Erasing a memory manually
● Select the memory that you wish to erase.
● Hold the  button of the multifunction
s t
eerin

g wheel or the  button of the multi-
f u nction wheel
pressed down for about 2 sec-
onds. 38

The essentials
Personalising the displays
In the E a
sy
Connect system you can adjust
which of the possible displays of the MFD can
be shown on the instrument panel display
with the  button and the
S
ET
TINGS function
b utt
on ›

››  page 120.
Data summary
MenuFunction
Current fuel
consumption
The current fuel consumption dis-
play operates throughout the jour-
ney, in litres/100 km; and with the
engine running and the vehicle
stopped, in litres/hour.
Average fuel consumption a)
After turning on the ignition, aver-
age fuel consumption in li-
tres/100 km will be displayed after
travelling about 100 metres. Other-
wise horizontal lines are displayed.
The value shown is updated approxi-
mately every 5 seconds.
ACT®
*: Depending on the equip-
ment, number of active cylinders.
Operating range a)
Approximate distance in km that can
still be travelled with the fuel re-
maining in the tank, assuming the
same style of driving is maintained.
This is calculated using the current
fuel consumption.
Travelling
timeThis indicates the hours (h) and mi-
nutes (min) since the ignition was
switched on.
MenuFunction
JourneyDistance covered in km (m) after
switching on the ignition.
CNG quality
Whenever you refuel the quality of
the natural gas is automatically veri-
fied and is displayed when the igni-
tion is switched on. The display is
made in a percentage of between
70% and 100%. The greater the per-
centage displayed the lower the con-
sumption may be.
Average
speed
The average speed will be shown af-
ter a distance of about 100 metres
has been travelled. Otherwise hori-
zontal lines are displayed. The value
shown is updated approximately ev-
ery 5 seconds.
Digital dis-play of
speedCurrent speed displayed in digital
format.
Speed warn-
ing at ---
km/h or Speed
warning at
--- mphIf the stored speed is exceeded (be-
tween 30 - 250 km/h, or 19 -
155 mph), an audible warning is
given together with a visual warn-
ing.
Detection of
traffic
signsThe traffic signs detected are dis-
played.
Oil tempera- tureUpdated engine oil temperature dig-
ital display
Coolant tem-
perature
gaugeDigital display of the current temper-
ature of the liquid coolant.
MenuFunction
Convenience consumersInformation about the vehicle’s
main convenience consumers. It is
displayed by means of a consump-
tion indicator bar.
Eco tipsTips on how to save fuel.
Reset data “when set-
ting off”Reset journey data when setting off.
Reset data
for “total
calculation”Reset travel journey to zero.
a) In vehicles with a natural gas engine, range and average con-
sumption refer only to data or natural gas consumption. If you
are in “petrol mode”, the information of both data only appears
on the dash panel and not on the multifunction screen.
Storing a speed with the speed warning
● Select the display Speed warning at
--- km/h (---
mph)
● Press the button 
 on the windscreen
w iper l
ev
er or the button  on the multifunc-
tion s t
eerin
g wheel to store the current speed
and activate the warning.
● To switch system on: adjust to the desired
speed within 5 sec
onds using the rocker
switch  on the windscreen wiper lever or
b y
t

urning the thumbwheel on the multifunc-
tion steering wheel. Next, press the button  or
 again or wait several seconds.
The s peed i
s

stored and the warning activa-
ted. » 39

The essentials
When the vehicle is at a standstill or when
tr av
el
ling at very low speeds, the tempera-
ture displayed may be higher than the true
outside temperature as a result of the heat
produced by the engine.
The temperatures measured range from
-40°C to +50°C (-40°F to +122°F).
Engine oil temperature display Vehicles without multifunction steering
wheel
● Press the rocker switch ›
››

Fig. 43 2 until
the m ain menu ap
pe
ars. Enter into Driving
data . With the button 2 move to the oil
t emper
at

ure gauge.
Vehicles with multifunction steering wheel
● Enter the submenu Driving data and
turn the thumbwheel
until the oil tempera-
ture display appears.
The engine reaches its operating temperature
when in normal driving conditions, the oil
temperature is between 80°C (180°F) and
120°C (250°F) . If the engine is required to
work hard and the outside temperature is
high, the engine oil temperature can in-
crease. This does not present any problem as
long as the warning lamps  ›››
table on
page 48 or  ››› table on page 48 do not
appear on the display. Additional consumers ●
Operation with the windscreen wiper lever*:
Pre s

s the rocker switch ››› Fig. 43 2 until the
main menu ap pe
ars. Enter into the section
Driving data . With the rocker switch,
move to the display Convenience con-
sumers .
● Operation with the multi-function steering
wheel*:
move with the buttons 
 or
  to Driving data
and enter with
OK. Turn
the right thumbwheel until the Conven-
ience consumers display appears.
In addition, a scale will inform you of the cur-
rent sum of all the additional appliances.
Saving tips Tips on how to save fuel will be displayed in
c
ondition
s

that increase fuel consumption.
Follow them to reduce consumption. The indi-
cations appear automatically only with the ef-
ficiency programme. After a time, the tips will
disappear automatically.
If you wish to hide a saving tip immediately
after it appears, press any button on the
windscreen wiper lever*/multifunction steer-
ing wheel*. Note
● If y

ou hide a saving tip, it will reappear af-
ter you switch the ignition on again.
● The saving tips do not appear in all situa-
tions, but
rather with a large separation of
time. Speed warning device
The speed warning device warns the driver
when they h
av

e exceeded the pre-set speed
limit by 3 km/h (2 mph). An audible warning
signal sounds, and the warning lamp  and
the driver message Speed limit excee-
ded! will be displayed simultaneously on the
instrument panel. The warning lamp 
switches off when reducing speed below the
stored maximum limit.
Speed warning programming is recommen-
ded if you wish to be reminded of a maxi-
mum speed, such as when travelling in a
country with different speed limits or for a
maximum speed for winter tyres.
Setting speed limit warning
You can use the radio or the Easy Connect* to
set, alter or cancel the speed limit warning.
● Vehicles with radio : pres
s the button SETUP > control button  Driver Assistant
>
Speed warning . » 43

Operation
● Sec ond s
peed di
splay ››› page 116 .
● Speed warning function ›››

 page 43.
● Start-Stop system status display
›››
page 205.
● Active cylinder management display
(ACT ®
)* ››

› page 200
● Signs recognised by the traffic signal de-
tection sys
tem ››› page 233
● Low consumption driving status (ECO)
›››
page 117
● Engine code (MKB) ›››
page 117.
Distance travelled
The odometer registers the total distance
travelled by the car.
The odometer (trip ) shows the distance
travelled since the last odometer reset. The
last digit of the trip recorder indicates distan-
ces of 100 metres or one tenths of a mile.
● Briefly press the button ›››
Fig. 122 4 to re-
set the trip r
ec
order to 0.
● Keep the button 4 pressed for about 3
sec ond
s

and the previous value will be dis-
played.
Time
● To set the time, keep the button ›››
Fig. 122
4 pressed for more than 3 seconds to select
the hour or minut e di
s
play. ●
To continue settin
g the time, press the up-
per or lower part of the button 4 . Hold but-
t on do
wn t
o scroll through the numbers
quickly.
● Press the button 4 again in order to finish
settin g the time.
The time c an al

so be set on the Easy Connect
system using the  button and the function
b utt
on

SETTINGS > Date and time
›››  page 33.
Compass
With the ignition on and the navigation sys-
tem on, the cardinal point corresponding to
the direction of travel of the vehicle is dis-
played on the instrument panel.
Selector lever position
The selected gear is displayed on the side of
the selector lever and on the instrument pan-
el display. In positions D and S, and with the
Tiptronic, the corresponding gear is also dis-
played.
Recommended gear (manual gearbox)
The recommended gear in order to save fuel
is displayed on the instrument panel while
you are driving ›››
 page 42. Second speed display (mph or km/h)
In addition t

o the speedometer, the speed
can also be displayed in a different unit of
measurement (in miles or in km per hour).
This option cannot be deactivated in models
destined for countries in which the second
speed must always be visible.
The second speed display can be adjusted in
the Easy Connect system by means of the  button and the function button SETTINGS >
Units › ›
›

 page 33.
Speed warning
When the speed setting is exceeded, this will
be indicated on the instrument panel display.
This is very useful, for example when using
winter tyres that are not designed for driving
at the maximum speed of the vehicle
›››  page 43.
The speed warning settings can be adjusted
in the Easy Connect system by means of the  button and the function button SET-
TINGS > Driver Assistance
› ›
›

 page 33.
Start-Stop operating display
Updated information relating to the status is
displayed on the instrument panel
››› page 205.
116

Driving
Inertia mode The inertia mode enables the kinetic energy
of the
v
ehicle to be harnessed enabling cer-
tain stretches to be driven without using the
accelerator. This enables fuel to be saved.
Use the inertia mode to “let the vehicle roll”
before, for example, arriving in a town.
Switching on inertia mode
Important: selector lever must be in position
D, gradients below 12 %.
– Select, in SEAT Drive Profile*, Eco mode
›› ›

page 230.
– Take your foot off the accelerator.
The driver mes
sage Inertia will be dis-
played. At speeds higher than 20 km/h (12
mph), the gearbox will automatically disen-
gage and the vehicle will roll freely, without
the effect of the engine brake. While the vehi-
cle rolls, the engine runs at idling speed.
Stopping inertia mode
– Press the brake or the accelerator pedal.
To mak
e use of the braking force and switch
off the engine again, simply press the brake
pedal briefly.
Applying both the inertia mode (= prolonged
section with less energy) and the switching
off using inertia (= shorter section without the need for fuel) facilitates improved fuel
cons

umption and emission balance. WARNING
● If the iner ti

a mode has been switched on,
take into account, when approaching an ob-
stacle and releasing the accelerator pedal,
that the vehicle will not decelerate in the usu-
al manner: risk of accident!
● When using inertia mode while travelling
down hil
ls, the vehicle can increase speed:
risk of accident!
● If other users drive your vehicle, warn them
about inerti
a mode. Note
● Inerti a mode i

s only available in eco (SEAT
Drive Profile*) driving mode.
● The driver message Inertia is on
ly dis-
played with the current consumption. In iner-
tia mode the gear will no longer be displayed
(for example “E” will appear instead of “E7”).
● On downhill sections with gradients above
15 %, the inertia mode w
ill automatically be
switched off temporarily. Emergency program
A backup programme is in place if a fault
shou
l
d oc

cur in the control system. If all the positions of the selector lever are
shown ov

er a light background on the instru-
ment panel display, there is a system fault
and the automatic gearbox will operate in
with the backup programme. When the back-
up programme is activated, it is possible to
drive the vehicle, however, at low speeds and
within a selected range of gears. In some ca-
ses driving in reverse gear may not be possi-
ble. CAUTION
If the gearbox operates with the backup pro-
gramme, t ak

e the vehicle to a specialised
workshop and have the fault repaired without
delay. Clutch

Clutch overheating! Please
stop!
The c lut

ch has overheated and could be dam-
aged. Stop the vehicle and wait for the gear-
box to cool with the engine at idling speed
and the selector lever in position P. When the
warning lamp and the driver message switch
off, have the fault corrected by a specialised
workshop without delay. If the warning lamp
and the driver message do not switch off, do
not continue driving. Seek specialist assis-
tance.
197
Technical data
Advice
Operation
Emergencies
Safety

Operation
Economical and environmentally-
friendly driv
in
gFuel consumption, environmental pollution
and we
ar t

o the engine, brakes and tyres de-
pends largely on driving style. Fuel consump-
tion can be reduced by 10-15% with an eco-
nomical driving style and proper anticipation
of traffic conditions. The following section
gives you some tips on lessening the impact
on the environment and reducing your oper-
ating costs at the same time.
Active cylinder management (ACT ®
)*
Depending on vehicle equipment, the active
cylinder management (ACT ®
) may automati-
cally deactivate some of the engine cylinders
if the driving situation does not require too
much power. When it is switched off, no fuel
is injected into these cylinders, hence total
fuel consumption may be reduced. The num-
ber of active cylinders can be seen on the in-
strument panel display ›››
 page 37.
Foresight when driving
Acceleration causes the vehicle to consume
more fuel. If you think ahead when driving,
you will need to brake less and thus acceler-
ate less. Wherever possible, let the car roll
slowly to a stop, with a gear engaged (for in-
stance when you can see that the next traffic
lights are red). This takes advantage of the
engine braking effect, reducing wear on the brakes and tyres. Emissions and fuel con-
sumption w
i

ll drop to zero due to the overrun
fuel cut-off.
Changing gear to save energy
An effective way of saving is to change in ad-
vance to a higher gear. Running the engine at
high rpm in the lower gears uses an unneces-
sary amount of fuel.
Manual gearbox : shift up from first to second
gear as soon as possible. In any case, we rec-
ommend that you change to a higher gear
upon reaching 2,000 rpm. Choosing the right
gear enables fuel savings. Select the highest
possible gear appropriate for the driving sit-
uation (the engine should continue function-
ing with cyclical regularity).
Automatic gearbox : accelerate gradually and
without reaching the “kick-down” position.
Avoid driving at high speed
Avoid travelling at top speed, whenever pos-
sible. Fuel consumption, emission of harmful
gases and noise pollution multiply dispropor-
tionately as speed is increased. Driving at
moderate speeds will help to save fuel.
Reduce idling time
In vehicles with the Start-Stop system idling
is automatically reduced. In vehicles without
the Start-Stop system it is worth switching off
the engine, for example, at level crossings and at traffic lights that remain red for long
periods of
time. When an engine has reached
operating temperature, and depending on
the cylinder capacity, keeping it switched off
for a minimum of about 5 seconds already
saves more than the amount of fuel necessa-
ry for restarting.
The engine takes a long time to warm up
when it is idling. Mechanical wear and pollu-
tant emissions are also especially high dur-
ing this initial warm-up phase. It is therefore
best to drive off immediately after starting
the engine. Avoid running the engine at high
speed.
Regular maintenance
Regular servicing helps in saving fuel even
before the engine is started. 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
The engine and catalytic converter need to
reach their optimal operating temperature in
order to minimise fuel consumption and
emissions.
A cold engine consumes a disproportionate
amount of fuel. The engine reaches its work-
ing temperature after about four kilometres
200

Driving
(2.5 miles), when fuel consumption will re-
t urn t
o a norm
al level.
Check tyre pressure
Always make sure the tyres are inflated to the
correct pressures ››› page 280 to save fuel. If
the pressure is below half bar, fuel consump-
tion may increase by 5%. Due to the greater
rolling resistance, under-inflation also increa-
ses tyre wear and impairs handling.
Do not use winter tyres all year round as they
increase fuel consumption by up to 10%.
Avoid carrying unnecessary loads
Given that every kilo of extra weight will in-
crease the fuel consumption, it is advisable
to always check the luggage compartment to
make sure that no unnecessary loads are be-
ing transported.
Since the luggage rack increases the aerody-
namic drag of the vehicle, you should remove
it when not needed. At speeds of 100-120
km/h (62-75 mph), this will save 12% of fuel.
Save electrical energy
The engine drives the alternator, thereby gen-
erating electricity. This implies that any in-
crease in power consumption also increases
fuel consumption! For this reason, switch off
any unneeded electrical devices. Devices that
use a lot of electricity includes the blower at a high setting, the rear window heating or
the seat he
ating*.
Power management This sy
stem helps to ensure reliable
starting The power management controls the distribu-
tion of el
ectric

al energy and thus helps to en-
sure that there is always enough power avail-
able to start the engine.
If a vehicle with a conventional electrical sys-
tem is left parked for a long time, the battery
will gradually lose its charge because certain
electrical devices, such as the electronic
gearbox lock continues to draw current even
when the ignition is off. In some cases there
may not be enough power available to start
the engine.
Your vehicle is equipped with an intelligent
power management system to control the
distribution of electrical energy. This signifi-
cantly improves reliability when starting the
engine, and also prolongs the useful life of
the battery.
The main functions incorporated in the power
management system are battery diagnosis,
residual current management and dynamic
power management. Battery diagnosis
The batt
er

y diagnosis function constantly
registers the condition of the battery. Sen-
sors detect the battery voltage, battery cur-
rent and battery temperature. This enables
the system to calculate the current power lev-
el and charge condition of the battery.
Residual current management
The residual current management reduces
power consumption while the vehicle is
parked. It controls the supply of power to the
various electrical devices while the ignition is
switched off. The system takes the battery di-
agnosis data into consideration.
Depending on the power level of the battery,
switch off the individual electrical devices
one after the other to prevent the battery
from losing too much charge and to ensure
that the engine can be started reliably.
Dynamic power management
While the vehicle is moving, this function dis-
tributes the available power to the various
electrical devices and systems according to
their requirements. The power management
ensures that on-board systems do not con-
sume more electrical power than the alterna-
tor can supply, and thus maintains the maxi-
mum possible battery power level. »
201
Technical data
Advice
Operation
Emergencies
Safety

Driving
●
Do not ap p
ly wax underneath the vehicle
around the area of the exhaust system: Fire
hazard! Note
While the control lamps , ,  or  r
e-
m ain lit, ther

e may be engine problems, fuel
consumption may increase and the engine
may lose power. Catalytic converter
3 App
lies to vehicles with petrol engine
The
vehicle must only be used with unleaded
petrol, otherwise the catalytic converter will
be irreparably damaged.
Never drive until the tank is empty; an irregu-
lar supply of fuel can cause faulty combus-
tion. In these cases, unburned fuel reaches
the exhaust system, which can overheat and
damage the catalytic converter.
Diesel particulate filter 3 App
lies to vehicles with diesel engine
The die
sel engine particulate filter eliminates
most of the soot from the exhaust gas sys-
tem. Under normal driving conditions, the fil-
ter cleans itself. The diesel particulate filter is
cleaned automatically without need for indi-
cation by the warning lamp . This may benoticed because the engine idle speed in-
cr
e

ases and an odour may be detected.
If automatic filter purification cannot be car-
ried out (because only short trips are taken,
for example), soot will accumulate on the fil-
ter and the Diesel particulate filter warning
lamp will  switch on.
Facilitate the automatic filter cleaning proc-
ess by driving in the following manner: drive
for approximately 15 minutes at a minimum
speed of 60 km/h (37 mph) in 4th or 5th gear
(automatic gearbox: gear S). Maintain the en-
gine speed at approximately 2,000 rpm. The
rise in temperature causes the soot on the fil-
ter to burn. On completion of the cleaning
the warning lamp will switch off. If the warn-
ing lamp does not switch off, go immediately
to a specialised workshop to rectify the prob-
lem.
Engine management*  This warning lamp monitors the engine man-
ag
ement
sy

stem for petrol engines.
The warning lamp  (Electronic Power Con-
trol) lights up when the ignition is switched
on while system operation is being verified. It
should go out once the engine is started.
If there is a fault in the electronic engine
management system while you are driving,
this warning lamp will light up. Take the vehi- cle to a specialised workshop as soon as
poss

ible and have the engine checked.
Emission control system*  Control lamp
 flashe
s:
When there is misfiring that can damage the
catalytic converter. Reduce speed and drive
carefully to the nearest specialised workshop
to have the engine checked.
The control lamp  lights up:
If a fault has developed during driving which
has reduced the quality of the exhaust gas
(e.g. lambda probe fault). Reduce speed and
drive carefully to the nearest specialised
workshop to have the engine checked.
Engine pre-heating/fault system*  The warning lamp lights up to show that the
glo
w p
lug

s are preheating the diesel engine.
The control lamp  lights up
If the control lamp  lights up when the en-
gine is started it means that the glow plugs
are preheating. The engine can be started
straight away when the lamp switches off. »
203
Technical data
Advice
Operation
Emergencies
Safety