249
Checking and refilling levels
A highly explosive mixture of gases is released when the bat-
tery is under charge.
Keep children away from acid and batteries!
WARNING
Always be aware of the danger of injury and chemical burns as well as
the risk of accident or fire when working on the battery and the electrical
system:
● Wear eye protection. Protect your eyes, skin and clothing from acid
and particles containing lead.
● Battery acid is extremely corrosive. Wear protective gloves and eye
protection. Do not tilt the batteries. This could spill acid through the
vents. Rinse battery acid from eyes immediately for several minutes with
clear water. Then seek medical care immediately. Neutralise any acid
splashes on the skin or clothing with a soapy solution, and rinse off with
plenty of water. If acid is swallowed by mistake, consult a doctor immedi-
ately.
● Fires, sparks, open flames and smoking are prohibited. When han-
dling cables and electrical equipment, avoid causing sparks and electro-
static charge. Never short the battery terminals. High-energy sparks can
cause injury.
● A highly explosive mixture of gases is released when the battery is
under charge. The batteries should be charged in a well-ventilated room
only.
● Keep children away from acid and batteries.
● Before working on the electrical system, you must switch off the en-
gine, the ignition and all consumers. The negative cable on the battery
must be disconnected. When a light bulb is changed, you need only
switch off the light.
WARNING (Continued)
● Deactivate the anti-theft alarm by unlocking the vehicle before you
disconnect the battery! The alarm will otherwise be triggered.
● When disconnecting the battery from the vehicle on-board network,
disconnect first the negative cable and then the positive cable.
● Switch off all electrical consumers before reconnecting the battery.
Reconnect first the positive cable and then the negative cable. Never re-
verse the polarity of the connections. This could cause an electrical fire.
● Never charge a frozen battery, or one which has thawed. This could
result in explosions and chemical burns. Always replace a battery which
has frozen. A flat battery can freeze at temperatures around 0 °C.
● Ensure that the vent hose is always connected to the battery.
● Never use a defective battery. This could cause an explosion. Replace
a damaged battery immediately.
CAUTION
● Never disconnect the battery if the ignition is switched on or if the en-
gine is running. This could damage the electrical system or electronic com-
ponents.
● Do not expose the battery to direct sunlight over a long period of time,
as the intense ultraviolet radiation can damage the battery housing.
● If the vehicle is left standing in cold conditions for a long period, protect
the battery from freezing. If it freezes it will be damaged.
Charging the battery
A fully-charged battery is important for reliable starting. – Note the warnings ⇒
in Important safety warnings for han-
dling a vehicle battery on page 249 and ⇒ .
Safety FirstOperating instructionsPractical TipsTechnical Specifications
253
Wheels and tyres
Significant tyre pressure loss
The tyre symbol is displayed and indicates that the tyre pressure
of at least one tyre is insufficient.
– Stop the vehicle.
– Switch the ignition off.
– Check the tyre(s).
– Change the wheel if necessary.
Tyre pressure monitoring (RKA+)*
The tyre pressure monitor display on the instrument panel
indicates if the pressure is too low.
Fig. 190 Detailed view of
the centre console: But-
ton for the tyre pressure
monitoring system The tyre pressure monitoring system makes use of the ABS sensors to com-
pare the rolling circumference and the frequency characteristics of the
wheels. If the rolling circumference or frequency characteristic changes on
one or more wheels, the tyre pressure warning lamp will light up. The
fault will also be indicated by a warning buzzer. The position of the affected
tyre will also be shown (if only one tyre is affected) on the centre display of
the instrument panel.
The rolling circumference and frequency characteristics can change if:
●
the tyre pressure is too low.
● the tyre has suffered structural damage.
● the wheels or the inflation pressures have been changed without initial-
ising the system (see Adjusting the tyre pressure settings).
● there is a greater load on the wheels of one axle (e.g. if you are carrying
more passengers or luggage).
● the road surface under the left wheels is different to the road surface un-
der the right wheels for a long period.
● when driving with snow chains.
Adjusting the tyre pressure settings (initialising the tyre pressure
monitoring system)
After any incident regarding the wheels of your vehicle, e.g. after modifying
the tyre pressure ⇒ page 255 or after changing or swapping wheels
⇒ page 255 you should - with the vehicle at a standstill and the engine run- ning - press ⇒ Fig. 190. The yellow warning lamp will light up. Hold the
button down for 2 seconds until the warning lamp goes out and an acoustic
warning is given. You can now release the button.
If the wheels are subjected to extreme stress (e.g. heavy load), the tyre
pressure must be increased to the recommended value for the maximum
load (see the adhesive label on the inside of the fuel tank flap) and then
initialise the system.
Safety FirstOperating instructionsPractical TipsTechnical Specifications
254Wheels and tyres
Tyre pressure warning lamp on
When you switch on the ignition, the tyre pressure warning lamp will
light up for about 2 seconds. There is a fault in the system if the indicator
stays on permanently after switching on the ignition. The instrument panel
also display TMPS (Tyre Pressure Monitoring System). Please contact the
nearest specialised workshop as soon as possible.
The tyre pressure warning lamp lights up if the tyre pressure on one or
more wheels is significantly lower than the tyre pressure setting which was
confirmed by the driver ⇒
.
WARNING
● If the tyre pressure warning lamp lights up you must slow down
immediately and avoid any severe braking or steering manoeuvres. Stop
the vehicle as soon as possible and check the tyres and their pressure.
● The driver is responsible for maintaining correct tyre pressures.
Therefore, the tyre pressure must be regularly checked.
● Under certain conditions (e.g. driving at high speeds, on ice and snow
or on poor road surfaces) the tyre pressure warning lamp may not light
up immediately or not at all.
● Please ask your Technical Service or specialised workshop whether
run-flat tyres can be used on your vehicle. Fitting this type of tyre in an
undue manner could lead to your driving licence being taken away from
you. Furthermore, it may led to damage to the vehicle or, under certain
circumstances, may cause accidents.
● If you change normal tyres for run-flat tyres or vice versa, the control
unit must be reprogrammed by the Technical Service or a specialised
workshop.
Note
If you did not press the button for the tyre pressure monitoring system to
confirm a new tyre pressure setting after making changes to the tyre pres-
sures or changing one or more wheels, the warning lamp may light up
although the tyre pressures are correct. In this case, stop the vehicle as
soon as possible and, after examining the tyres, press the button for the
tyre pressure monitoring system.
271
If and when
pressure is still lower than the specification the tyre is too badly
damaged and cannot be repaired using the tyre sealant.
Final check
– After about 10 minutes, stop to check the tyre pressure.
– If tyre pressure is less than 1.3 bar, the tyre is too badly dam-
aged. Do not drive on! You should obtain professional assis-
tance.
WARNING
● If you have a puncture in heavy traffic, switch on the hazard warning
lights and place the warning triangle in a visible location. This is for your
own safety and also warns other road users.
● Make sure your passengers wait in a safe place (for instance behind
the roadside crash barrier).
● Please observe the manufacturer's safety notes on the compressor
and the instructions supplied with the tyre sealant can.
● If it is not possible to build up a tyre pressure of 2.0 bar within 6 mi-
nutes this means that the tyre is too badly damaged. Do not drive on!
● Seek professional assistance if the repair of a tyre puncture is not
possible with the sealing product.
● If tyre pressure is less than 1.3 bar after driving about 10 minutes,
the tyre is too badly damaged. Do not drive on! Obtain technical assis-
tance.
CAUTION
Take special care if you have to repair a tyre on a slope.
Note
● Do not use the compressor for longer than 6 minutes. Otherwise, it
might overheat. When the compressor has cooled down, you can use it
again.
● If tyre sealant should leak out, leave it to dry and then pull it off like foil.
● After carrying out a tyre repair remember to buy a new tyre sealant can at
a specialised workshop. This will ensure that the Tyre Mobility System is op-
erative again.
● Please observe legal requirements when doing so.
Safety FirstOperating instructionsPractical TipsTechnical Specifications
273
If and when
Vehicle fuses
Fig. 203 Fuse box cover
on the left side of the
dash panel.
Only replace fuses with a fuse of the same amperage (same colour and
markings) and size.
Identifying fuses situated below the driver-side dash panel by colours
ColourAmp ratingpurple3Light brown5Brown7,5Red10Blue15Yellow20White or transparent25Green30Orange40
Opening and closing the fuse box located on the left side of the dash panel
● Opening: Remove the fuse box cover using a screwdriver ⇒ Fig. 203.
● Closing: fit the fuse cover back on.
CAUTION
● Always carefully remove the fuse box covers and refit them correctly to
avoid problems with your vehicle.
● Protect the fuse boxes when open to avoid the entry of dust or humidity.
Dirt and humidity inside fuse boxes can cause damage to the electrical sys-
tem.
Note
In the vehicle, there are more fuses than those indicated in this chapter.
These should only be changed by a specialised workshop.
Replacing a blown fuse
Fig. 204 Image of a
blown fuse
Safety FirstOperating instructionsPractical TipsTechnical Specifications
275
If and when
Changing bulbs. Halogen headlights Types of bulbs
You must only replace a bulb with a bulb of the same type. The name can be
found on the base of the bulb holder.
BulbTypeDipped beam headlights (halogen)12 V/55 W (H7 LL)Main beam headlights12 V/55 W (H1)Turn signal12 V/21 W (PY21W)Side lights12 V/5 W (W5W LL)
WARNING
● Take particular care when working on components in the engine com-
partment if the engine is warm. Risk of burns.
● Bulbs are highly sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
● The high voltage element of gas discharge bulbs* (xenon light) must
be handled correctly. Otherwise, there is a risk of death.
● When changing bulbs, please take care not to injure yourself on sharp
parts in the headlight housing.
CAUTION
● Remove the ignition key before working on the electric system. Other-
wise, a short circuit could occur.
● Switch off the lights or parking lights before you change a bulb.
For the sake of the environment
Please ask your specialist retailer how to dispose of used bulbs in the prop-
er manner.
Note
● Depending on weather conditions (cold or wet), the front lights, the fog
lights, the tail lights and the turn signals may be temporarily misted. This
has no influence on the useful life of the lighting system. By switching on
the lights, the area through which the beam of light is projected will quickly
be demisted. However, the edges may continue to be misted.
● Please check at regular intervals that all lighting (especially the exterior
lighting) on your vehicle is functioning properly. This is not only in the inter-
est of your own safety, but also in that of all other road users.
● Before changing a bulb, make sure you have the correct new bulb.
● Do not touch the glass part of the bulb with your bare hands, use a cloth
or paper towel instead. Otherwise, the fingerprints left on the glass will va-
porise as a result of the heat generated by the bulb, they will be deposited
on the reflector and will impair its surface.
Safety FirstOperating instructionsPractical TipsTechnical Specifications
277
If and when
Halogen headlight bulbs
Fig. 207 Halogen bulbs
Main beam headlights
Side lights
Dipped beam headlights
Side lights
Turn signal
A
BCDE
Changing the turn signal bulb
The procedure for changing the bulb is the same on both
sides of the vehicle.
Fig. 208 Turn signal
bulb
– Switch off the ignition and the lights.
– Raise the bonnet.
– Turn the bulb holder anticlockwise, pulling it by the grip
⇒ Fig. 208 and removing the bulb holder and the bulb.
– Replace the blown bulb in the bulb holder (press and turn anti-
clockwise to remove) with a new bulb (press and turn clockwise
to insert).
– Installation involves all of the above steps in reverse sequence.
– Check whether the new bulb is working.
Safety FirstOperating instructionsPractical TipsTechnical Specifications
279
If and when
Changing the dipped beam headlight bulb
The procedure for changing the bulb is the same on both
sides of the vehicle.
Fig. 211 Dipped beam
headlights
Fig. 212 Dipped beam
headlights
– Switch off the ignition and the lights. –
Raise the bonnet.
– Move the brace ⇒ Fig. 211 1
in the direction of the arrow and
remove the rigid cover, separating the brace side and then re-
moving the two tabs from the other end of the cover.
– Pull the connector ⇒ Fig. 212 2
from the bulb.
– Unclip the retainer spring ⇒ Fig. 212 3
pressing inwards to the
right.
– Remove the bulb and fit the new one in the headlight casing
with the tab upwards, starting to position it from below.
– Clip on the spring, raising it and pressing it slightly while turn-
ing it anticlockwise. To ensure correct lighting, the filament
must be vertical. When changing the bulb, you can check the
position of the bulb through the headlight glass.
– Connect the connector to the bulb.
– Fit the cover, first inserting the side tabs and then closing the
cover and the brace. Make sure that the gasket sits well on the
casing cover during the operation.
– Check whether the new bulb is working.
– Have the headlight settings checked as soon as possible.
Safety FirstOperating instructionsPractical TipsTechnical Specifications