
At a speed of more than approximately 20 km/h the warning light flashes
and an audible warning sounds at a time.
The warning signal is switched of and the
indicator light is permanently lit if
the driver and front passenger have not fastened their seat belts within the
next 90 seconds.
Alternator
Read and observe
on page 34 first.
illuminates - the battery is not being charged whilst the engine is running.
Seek help from a specialist garage.
CAUTION
If in addition to the symbol the symbol » page 35 illuminates while driv-
ing, stop driving - risk of engine damage! Switch off the engine and seek as-
sistance from a specialist garage.
Engine oil pressure too low
Read and observe
on page 34 first.
lights up or flashes - the engine oil pressure is too low.
An audible signal sounds as a warning.
›
Stop the vehicle, switch off the engine, and check the engine oil level
» page 109 , Checking the oil level .
If the warning light illuminates or flashes, do not drive any further, even if
the oil level is correct! Switch off the engine and seek assistance from a spe-
cialist garage.
CAUTION
■ The oil pressure light is not an oil level indicator! One should therefore
check the oil level at regular intervals, preferably after every refuelling stop.■
If for some reason, it is not possible to top up the engine oil under the cur-
rent circumstances,
do not continue driving! Switch off the engine and seek
assistance from a specialist garage.
Coolant
Read and observe
on page 34 first.
lights up or flashes - the coolant temperature is too high or the coolant lev-
el is too low.
An audible signal sounds as a warning tone.
›
Stop the vehicle, switch off the engine, and allow the engine to cool down.
›
Check the coolant level, if necessary top up the coolant.
If the coolant is within the specified range, the cooling fan may be malfunc-
tioning.
›
Switch off the ignition.
›
Check the fuse for the cooling fan, replace if necessary.
If the coolant level and fan fuse are both OK but the warning light is still
illuminated ,
do not drive any further!
Seek help from a specialist garage.
Automated transmission
Read and observe
on page 34 first.
fault
lights up - there is a fault in the automatic transmission.
An audible signal sounds as a warning tone.
Do not continue to drive! Switch off the engine and seek assistance from a
specialist garage.
Functional impairment
lights up and gear change is not possible - for technical reasons there may
be an impairment of the automatic transmission.
›
Stop the car, turn the ignition off and on again.
If the warning light lights up after you again switch on the ignition, seek as-
sistance from a specialist garage.
Gearbox overheating
and is possibly also
illuminated - the automatic transmission is overheat-
ing.
An audible signal sounds as a warning tone.
35Instruments and control lights

Heating and ventilation
Heating, manual air conditioning system
Introduction
This chapter contains information on the following subjects:
Controls
69
recirculation
70
Air outlet vents
71
The heating and air conditioning ventilate and heat the vehicle interior. The air
conditioning system also cools and dehumidifies the vehicle interior.
The heating effect is dependent upon the coolant temperature, thus full heat
output only occurs when the engine has reached its operating temperature.
The cooling system only operates if the following conditions are met. The cooling system is switched on.
The engine is running.
The outside temperature is above approx. +2 °C.
The blower is switched on.
If the cooling system is switched on, the temperature and air humidity drops in the vehicle. The cooling system prevents the windows from misting up during
winter months.
It is possible to briefly activate recirculated air mode to enhance the cooling
effect » page 70 .
Health protection
To reduce health risks (e.g. common colds), the following instructions for the
use of the cooling system are to be observed. ▶ The difference between the indoor temperature and the outdoor air temper-
ature should not be greater than about 5 ° C.
▶ The cooling system is to be turned off about 10 minutes before the end of
the journey.
▶ Once a year, a disinfection of the air conditioner is to be carried out by a spe-
cialist company.
WARNING■ For your own safety and that of other road users, ensure that all the win-
dows are free of ice, snow and misting. The blower should always be on to
prevent the windows from misting up.■
Under certain circumstances, air at a temperature of about 5 °C can flow
out of the vents when the cooling system is switched on.
CAUTION
■ The air inlet in front of the windscreen must be free from ice, snow or leaves,
for example, to ensure that the heating and cooling system works properly.■
After switching on the cooling Condensation from the evaporator of the air
conditioning may drip down and form a puddle below the vehicle. This is not a
leak!
■
If the coolant temperature is too high, the cooling system is switched off to
ensure that the engine cools down.
Controls
Fig. 83
Heating Controls
69Heating and ventilation

Fig. 84
Controls of the air conditioning
Read and observe
and on page 69 first.
Individual functions can be adjusted by rotating or moving the controls, if nec-
essary by adjusting or pressing the button on and off.
Functions of the individual controls » Fig. 83 and » Fig. 84
Setting temperature
▶ Lowering the temperature
▶ Increasing the temperature
Setting the fan speed (level 0: fan off, level 4: highest setting)
Setting the direction of the air outlet » page 71
▶ Air flow to the windows
▶ Air flow to the upper body
▶ Air flow to the footwell
▶ Airflow to the windows and the footwell
Recirculated air mode
▶ Switching off
▶ Switching on
Switching the cooling system on/off (when this function is switched on,
the warning light illuminates in the button)
Note
■ The warning light in the button lights after activation, even if not all of the
conditions for the function of the cooling system have been met. By lighting up
of the indicator light in the button, the operational readiness of the cooling
system is signalled.■
During operation of the air conditioning, an increase in engine idle speed may
occur under certain circumstances in order to ensure sufficient heating com-
fort.
ABCDrecirculation
Read and observe
and on page 69 first.
The recirculation mode prevents contaminated outside air getting into the in-
terior of the vehicle.
In recirculated air mode air is sucked out of the interior of the vehicle and then
fed back into the interior.
The air conditioning system
›
To turn on the air recirculation,. move the slider into position
D
» Fig. 84
on page 70 .
›
To turn off the air recirculation, move the slider into position
D
.
WARNINGThe recirculation system cannot be switched on for a longer period of time,
because there is no supply of fresh air from the outside. “Stale air” may re-
sult in fatigue in the driver and occupants, reduce attention levels and also
cause the windows to mist up. The risk of having an accident increases.
Switch off recirculated air mode as soon as the windows start to mist up.
CAUTION
We recommend not smoking in the vehicle when the recirculating air operation
is switched on. The smoke sucked from inside the vehicle is deposited on the
evaporator of the air conditioner. This produces a permanent odour when the
air conditioning system is operating which can only be eliminated through con-
siderable effort and expense (replacement of compressor).70Using the system

The gearbox shifts down one or more gears depending on the vehicle speed
and engine speed, and the vehicle accelerates.
The gearbox does not shift up into the highest gear until the engine has
reached its maximum revolutions for this gear range.WARNINGRapid acceleration, particularly on slippery roads, can lead to loss of vehicle
control – risk of accident!
Running-in and economical driving
Introduction
This chapter contains information on the following subjects:
Running-in
83
Tips for economical driving
83
The fuel consumption, degree of pollution and vehicle wear depend on driving
style, road condition, weather conditions and the like.
Running-in
Driving in the engine
The engine has to be run in during the first 1 500 kilometres. During this peri-
od, the driving style decides on the quality of the driving-in process.
During the first 1 000 km we recommend not driving faster than 3/4 of the
maximum permissible engine speed, not to drive at full throttle and to dis-
pense with the trailer.
In the area of 1,000 to 1,500 kilometres the engine load can be increased up
to the maximum permitted engine speed.
New tyres
New tyres must firstly be “run in” since they do not offer optimal grip at first.
Therefore, drive especially carefully for the first 500 km or so.
New brake pads
New brake pads have to first “grind in” because these do not initially have the
best possible braking effect.
Therefore, drive especially carefully for the first 200 km or so.
Tips for economical driving
To achieve the lowest possible fuel consumption, the following instructions
must be observed.
Looking ahead when driving
Avoid unnecessary acceleration and braking.
Switch in an energy saving and timely manner Observe the recommended gear » page 30.
Avoid full throttle and high speeds
Fuel consumption can be reduced by half if only three-quarters of the possible
top speed of your vehicle is used.
Reducing idling
If the vehicle is fitted with the START - STOP system there is an automatic re-
duction of the idling. If the engine is stopped on vehicles without START-STOP
system, such as when waiting in a traffic jam, the fuel economy is already
greater after 30 - 40 s than the fuel quantity which is required for engine re-
start.
Avoid short distances
When driving a short distance of less than about 4 km, the engine cannot
reach its operating temperature. As long as the engine has not reached oper-
ating temperature, the fuel consumption is significantly higher than with the
engine hot.
Pay attention to the correct tyre inflation pressure being maintained
Further information » page 117.
Avoid unnecessary ballast
Per 100 kg of weight, consumption increases by about 0.3 l/100 km. At a speed
of 100 - 120 km/h, a vehicle fitted with a roof rack cross member without a load
will use about 10 % more fuel than normal due to the increased aerodynamic
drag.
Saving electricity
Only turn on electrical consumers (e.g. seat, window and mirror heating and
similar) for as long as necessary.
Use the cooling system economically
The air conditioning system compressor uses power from the engine when in
cooling mode, which will affect the fuel consumption. 83Starting-off and Driving

It recommended to open the windows or the doors of a vehicle for which the
interior has been strongly heated through the effect of direct sunlight in order
to allow the heated air to escape.
The cooling system should not be on if the windows are open.
Avoiding damage to your vehicle
Introduction
This chapter contains information on the following subjects:
Driving Tips
84
Driving through water
84
This section of the manual contains important information on preventing dam-
age to the vehicle while driving.
Driving Tips
Only drive on such roads and in such terrain, which match the vehicle parame-
ters » page 142 , Technical data as well as your driving skills.
The driver is always responsible for deciding whether the vehicle can handle
travelling in the given terrain.
WARNING■ Always adjust your driving to the current terrain and weather conditions.
Excessive speed or incorrect driving manoeuvres can cause damage to the
vehicle and lead to serious injuries.■
Combustible objects such as dry leaves or twigs caught under the base of
the vehicle could ignite on hot vehicle parts - risk of fire!
CAUTION
■ Pay attention to the ground clearance of the vehicle! When driving over ob-
jects which are larger than the ground clearance, the vehicle can get damaged.■
Any objects that get trapped under the vehicle floor must be removed as
soon as possible. These objects can damage the fuel lines, the brake system,
seals and other parts of the vehicle.
■
Drive slowly in unknown terrain and watch out for unexpected obstacles,
such as potholes, rocks, stumps, etc.
■
Check up on confusing sections of unpaved roads before travelling on them
and consider whether such travelling is possible without risk.
Driving through waterFig. 96
Maximum permissible water lev-
el when driving through water
The following instructions must be observed if vehicle damage is to be avoided
when driving through water (e.g. flooded roads).
›
Therefore determine the depth of the water before driving through bodies of
water.
The water level must not reach above the web of the lower beam » Fig. 96.
›
Do not drive any faster than at a walking speed.
At a higher speed, a water wave can form in front of the vehicle, which can
cause water to penetrate into the engine's air induction system or other parts
of the vehicle.
›
Never stop in the water, do not reverse and do not switch the engine off.
CAUTION
■ Should water penetrate into the intake system of the engine, there is a
threat of serious damage being incurred by the engine parts!■
When driving through water, some vehicle parts such as chassis, electrics or
transmission can be severely damaged.
■
Oncoming vehicles can generate water waves which can exceed the permis-
sible water level for your vehicle.
■
Potholes, mud or rocks can be hidden under the water, making it difficult or
impossible to drive through the body of water.
■
Do not drive through salt water, as the salt can cause corrosion. An vehicle
coming into contact with salt water is to be thoroughly rinsed with fresh wa-
ter.
84Driving

›Plug the cap A onto the gas filler tube.›Close the bonnet.
The natural gas refuelling systems have an overfill protection relating to the
outdoor temperature. At very high outside temperatures, it may happen that
the gas tank may not be fully refuelled.
The natural gas system of your vehicle is suitable both for “slow fuelling” (fuel-
ling from small compressors) and for “quick fuelling” (fuelling from natural gas
stations with large compressors).
If the vehicle is parked for a longer period of time immediately after refuelling,
the situation may arise in which the pointer of the fuel tank gauge does not
indicate exactly the same level as was the case immediately after refuelling
when the engine is restarted. This is not due to any system leakages but a
drop in pressure in the natural gas fuel tank due to technical reasons after a
cooling phase directly after refuelling.
The maximum lifetime of the gas tank is 20 years.
The capacity of the natural gas fuel tank is about 11 litres, of which about 1.5
litres are in reserve.
The capacity of the gasoline fuel tank is about 10 litres, of which about 5 litres
are in reserve.WARNING■ When refuelling, never get into the vehicle. If you have to get into your
vehicle in exceptional cases, touch a metal surface before you touch the
filling coupling again. This will avoid electrostatic discharges, which may
generate sparks. Sparks can cause a fire during refuelling.■
Natural gas is highly explosive and highly flammable.
Note
During the filling process sounds are heard which are harmless. If you are un-
sure which service station staff to use, ask the petrol station staff.CNGFig. 105
Position of the CNG label(s).
Read and observe
and on page 102 first.
A G-TEC-vehicle may be operated with CNG and petrol.
In some countries, national legislation requires that vehicles with CNG opera- tion be identified by one of the labels » Fig. 105.
Position of the CNG label » Fig. 105.
Natural gas quality and consumption
Depending on the natural gas supplier, the natural gas quality (heating value) may vary. The engine system adjusts automatically to the natural gas quality.
Automatically switching over from natural gas mode to petrol mode
The vehicle automatically switches from natural gas to petrol, for example, if one of the following cases occurs.
▶ With an empty gas tank or not enough pressure in the tank.
▶ After refuelling with natural gas.
▶ At very low surrounding temperatures.
Use up all the petrol in the fuel tank once every six months until the warning
light illuminates and then refill with petrol. This is to ensure that the fuel
system functions correctly and to preserve the quality of the fuel.
Gas smell
If you smell gas proceed as follows. ▶ Stop the vehicle.
▶ Put out cigarettes.
▶ Switch off the ignition.
▶ Open doors and the boot lid to ventilate the vehicle sufficiently.
105Inspecting and replenishing

The oil can be checked and topped up, if the following conditions are satisfied.The vehicle is standing on a horizontal surface.
The engine operating temperature is reached.
The engine is turned off.
The bonnet is open.
Checking the level›
Wait a few minutes until the engine oil flows back into the oil trough.
›
Pull out the dipstick.
›
Wipe the dipstick with a clean cloth and insert it again to the stop.
›
Pull the dipstick out again and check the oil level.
›
Re-insert the dipstick.
The engine consumes a little oil. The oil consumption may be as much as 0.5
l/1 000 km depending on your style of driving and the conditions under which
you operate your vehicle. Consumption may be slightly higher than this during
the first 5 000 km.
The oil level must be checked at regular intervals.
In the event of the oil level being too low, the warning light appears in the dis-
play of the instrument cluster » page 35. Check the oil level using the dipstick
as soon as possible. Add oil accordingly.
CAUTION
■ The oil level must never be above the range A » Fig. 109 - risk of damage to
the motor as well as the exhaust system.■
If for some reason, it is not possible to top up the engine oil under the cur-
rent circumstances,
do not continue driving! Switch off the engine and seek
assistance from a specialist garage.
■
If the oil level is above the range
A
,
stop driving! Switch off the engine
and seek assistance from a specialist garage.
Replenishing
Read and observe
and on page 109 first.
›
Unscrew the cap of the engine oil filler opening » Fig. 107 on page 108 .
›
Replenish the oil in portions of 0.5 litres in accordance with the correct speci-
fications » page 109 .
›
Check the oil level » page 109.
›
Screw the lid of the engine oil filler closed carefully.
›
Pull the dipstick out as far as the stop.
Coolant
Introduction
This chapter contains information on the following subjects:
Checking the coolant level
111
Replenishing
111
The coolant provides cooling for the motor.
It consists of water and coolant additive with additives that protect the cooling
system against corrosion and prevents furring.
The proportion of coolant additive in the coolant must be at least 40%.
The coolant additive may be increased to a maximum of 60%.
The correct mixing ratio of water and coolant additive is to be checked if nec-
essary by a specialist garage or is to be restored if necessary.
The description of the coolant is shown in the coolant expansion reservoir
» Fig. 110 on page 111 .
WARNINGThe engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en- gine compartment » page 106.■
The coolant is harmful to health.
■
Avoid contact with the coolant.
■
Coolant vapours are harmful to health.
■
Never open the end cover of the coolant expansion reservoir while the
engine is still warm. The cooling system is pressurized!
■
When opening the end cover of the coolant expansion reservoir, cover it
with a cloth to protect your face, hands and arms from hot steam or hot
coolant.
■
If any coolant splashes into your eyes, immediately rinse out your eyes
with clear water and contact a doctor as soon as possible.
■
Always keep the coolant in the original container, safe from people who
are not completely independent, especially children - there is a danger of
poisoning!
■
If coolant is swallowed, consult a doctor immediately.
■
Never spill operating fluids over the hot engine - risk of fire.
110General Maintenance

CAUTION■ Do not continue if for some reason it is not possible to fill with coolant un-
der the current circumstances! Switch off the engine and seek assistance from
a specialist garage.■
If the expansion tank is empty, do not top up with coolant. The system could
fill with air - risk of engine damage,
stop driving! Switch off the engine and
seek assistance from a specialist garage.
■
The concentration of coolant additive in the coolant must never be under
40%.
■
Over 60% of coolant additive in the coolant reduces the antifreeze protec-
tion and cooling effect.
■
A coolant additive that does not comply with the correct specification can
significantly reduce the corrosion protection of the cooling system.
■
Any faults resulting from corrosion may cause a loss of coolant and can con-
sequently result in major engine damage.
■
Do not fill the coolant above the mark
A
» Fig. 110 on page 111 .
■
If an error occurs, leading to the engine overheating, the help of a professio-
nal garage is to be sought - there is a risk of serious engine damage occurring.
■
Additional headlights and other attached components in front of the air inlet
impair the cooling efficiency of the coolant.
■
Never cover the radiator - there is a risk of the engine overheating.
Checking the coolant level
Fig. 110
Coolant expansion reservoir
Read and observe and on page 110 first.
The coolant expansion bottle is located in the engine compartment.
Coolant expansion reservoir » Fig. 110
Mark for the maximum permissible coolant level
Mark for the lowest permissible coolant level
ABThe coolant level should be kept between the marks A and B .
The coolant can be checked and topped up, if the following conditions are sat-
isfied.
The vehicle is standing on a horizontal surface.
The engine is turned off.
The engine is not heated.
The bonnet is open.
Checking the level›
Check the level of coolant in the coolant expansion bottle » Fig. 110.
If the engine is warm, the test result may be inaccurate. The level can also be
above the mark
A
» Fig. 110 .
In the event of the coolant level being too low, a warning light appears in the
instrument cluster
» page 35 . We still recommend inspecting the coolant lev-
el directly at the reservoir from time to time.
Loss of coolant
A loss of coolant is first and foremost an indication of a leak in the cooling sys-
tem. Do not merely top up the coolant. Have the cooling system checked by a
specialist garage.
Replenishing
Read and observe
and on page 110 first.
The coolant expansion tank must always contain a small amount of coolant» page 111, in section Introduction .
›
Place a cloth over the cap of the coolant expansion tank and unscrew the
cap carefully .
›
Replenish the coolant.
›
Turn the cap until it clicks into place.
Do not use an alternative additive if the specified coolant is not available. In
this case, use just water and have the correct mixing ratio of water and cool-
ant additive restored by a specialist garage as soon as possible.
Only top up with new coolant.
111Inspecting and replenishing