
305
Wheels and tyres
Press the hubcap against the wheel so that the space for the valve fits over
the tyr e
valve ⇒ fig. 182 1 . Make sure that the hubcap is correctly fitted all
the wa y
around the wheel.
Wheel bolt caps Fig. 180 Removing the
wheel bo
lt
caps
● Take the wire hook from the vehicle tool kit ⇒ page 320.
● In
sert the wire hook in the cap through the opening ⇒ fig. 180 and pul
l
outwards in the direction of the arrow.
The caps protect the wheel bolts and should be remounted after changing
the tyre.
The anti-theft wheel locking bolt has a special cap. This cap only fits on an-
ti-theft locking bolts and is not for use with standard wheel bolts. Changing a wheel*
Introduction The tyres mounted on the vehicle are anti-puncture. The wheels should only
be ch
an
ged when switching from summer to winter tyres or vice-versa. See
⇒ page 299
You should only change the wheels yourself if the vehicle is parked in a safe
place, you are familiar with the procedure and you have all the necessary
tools! Otherwise, you should seek professional assistance.
Additional information and warnings:
● Vehicle key set ⇒ pag
e 71
● Wheels and tyres ⇒ pag
e 293
● Wheel trims ⇒ pag
e 304
● Vehicle tools ⇒ pag
e 320 WARNING
Changing a wheel can be dangerous, especially on the hard shoulder.
Ple a
se observe the following rules to minimise the risk of injury:
● Stop the vehicle safely as soon as possible. Park your vehicle as safe
dist
ance from surrounding traffic to change a wheel.
● When changing a wheel, keep all passengers and particularly chil-
dren a saf
e distance away from the work area.
● Turn on the hazard warning lights to warn other road users.
● Ensure the ground on which you park is flat and solid. If necessary,
suppor
t the jack on a wide solid base.
● If you are changing a wheel yourself, you should be familiar with the
required pr
ocedure. Otherwise, you should seek professional assistance. Safety First Operating instructions Practical tips Technical Data

306
Wheels and tyres WARNING (Continued)
● Only use suitable tools that are not damaged when changing a wheel.
● A
lw
ays stop the engine, turn on the electronic parking brake and
plac
e the gear selector lever in position P, for an automatic gearbox, or
engage a gear for a manual gearbox to reduce the risk of the vehicle mov-
ing accidentally.
● Have the tightening torque of the wheel bolts checked as soon as
poss
ible with a reliable torque wrench.
Preparations for changing a wheel Check list
Bef
or
e changing a wheel, complete the following operations in the order
given ⇒ :
Park the
vehicle on an even and solid surface.
Connect the electronic parking brake ⇒ page 183.
Automatic gearbox: Move selector lever to position P ⇒ page 174.
Stop the engine and remove the key from the ignition ⇒ page 170.
Manual gearbox: Select a gear ⇒ page 174.
Have all vehicle occupants get out of the vehicle and wait in a safe
place (for example, behind the safety barrier).
Block the opposite wheel with wedges or a similar object.
When towing a trailer: unhook the trailer from the towing vehicle and
park it correctly.
If the luggage compartment is full: take the baggage out of the vehicle. Take the vehicle tool kit out of the luggage compartment.
Remove the wheel trims ⇒ page 304.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11. WARNING
Failure to follow the checklist prepared for your own safety could lead to
acc ident
s and severe injuries.
● Always complete the operations given in the checklist and observe
the genera
l rules of safety.

307
Wheels and tyres
Wheel bolts Fig. 181 Changing the
wheel: Sl
ac
ken the wheel
bolts. Fig. 182 Changing the
wheel: T
y
re valve 1 and
pos ition of
anti-theft
wheel locking bolt 2 or
3 .
Only use the tool supplied with the vehicle to loosen the wheel bolts.
Loo sen the wheel
bolts only about one turn before raising the vehicle with
the jack. If the wheel bolt is very tight, you may be able to loosen it by pushing down
on the end of the wheel br
ace carefully with your foot. Hold on to the car for
support and take care not to slip.
Loosening wheel bolts
● Fit the wheel brace as far as it will go over the wheel bolt ⇒ fig. 181.
● Hold the wheel brace at the end and rotate the bolt approximately one
turn antic
lockwise ⇒ .
Loo senin
g anti-theft wheel bolts
For wheels with full hubcap, the anti-theft wheel lock must be threaded into
position ⇒ fig. 182 2 or
3 before mounting the hubcap. Otherwise it will
not be po s
sible to mount the full hubcap.
● Take the adapter for anti-theft wheel bolts out of the vehicle tool kit.
● Insert the adapter onto the wheel bolt.
● Fit the wheel brace onto the adapter as far as possible.
● Hold the wheel brace at the end and rotate the bolt approximately one
turn antic
lockwise ⇒ .
Import ant
information about wheel bolts
The wheel rims and bolts have been designed to be fitted to factory op-
tions. If different rims are fitted, the correct wheel bolts with the right length
and correctly shaped bolt heads must be used. This ensures that wheels are
fitted securely and that the brake system functions correctly.
In some circumstances, wheel bolts from the same model vehicle should
not be used.
Wheel bolt tightening torque
The prescribed tightening torque for wheel bolts for steel and alloy wheels
is 140 Nm. Have the tightening torque of the wheel bolts checked as soon
as possible with a reliable torque wrench.
If wheel bolts are rusty and it is difficult to tighten them, the threads should
be replaced and cleaned before checking the torque. Safety First Operating instructions Practical tips Technical Data

311
Wheels and tyres
Changing a wheel Fig. 185 Changing the
wheel: loosen wheel
bo
lt
s with the socket at
the end of the wheel
brace.
Removing the wheel
● Please observe the check list ⇒ page 306.
● L
oosen the wheel bolts ⇒ page 307.
● Jac
king up the vehicle ⇒ page 309.
● U
sing the hexagonal socket in the wheel brace ⇒ fig. 185, uns
crew the
slackened wheel bolts and place them on a clean surface.
● Take off the wheel.
Putting on the s
pare wheel
Check the direction of rotation of the tyre ⇒ page 295.
● Fit the wheel.
● Screw on the anti-theft locking bolt with the adapter in position
⇒ fig. 182 2 or
3 clockwise and tighten gently.
● Replace the other wheel bolts and tighten slightl
y using the hexagonal
socket on the end of the wheel brace.
● Lower the car with the jack. ●
Tighten all of the wheel bolts clockwise ⇒ . Tighten the bolts in diago-
nal p
airs (not in a circle).
● Put the caps, trim or full hubcap back on ⇒ page 304. WARNING
If the wheel bolts are not treated suitably or not tightened to the correct
tor que then thi
s could lead to loss of vehicle control and to a serious ac-
cident.
● All the wheel bolts and hub threads should be clean and free of oil
and grea
se. The wheel bolts should be easily tightened to the correct tor-
que.
● The hexagonal socket in the wheel brace should be used for turning
wheel bolt
s only. Do not use it to loosen or tighten the wheel bolts.
After changing the wheel ●
Clean the wheel brace, if necessary and put it away in the luggage com-
par tment
⇒ page 320.
● Have the tightening torque of the wheel bolts checked as soon as possi-
ble w
ith a torque wrench ⇒ page 307. Note
If the vehicle is fitted with a tyre monitoring system, this should be “reprog-
rammed” if nec
essary whenever a tyre is changed ⇒ page 223.Safety First Operating instructions Practical tips Technical Data

312
If and when
If and when
In case of emergency
Introduction Additional information and warnings:
●
Braking, stopping and parking ⇒ pag e 183
● Emer
gency locking and unlocking ⇒ page 314
● V
ehicle tools ⇒ page 320 WARNING
A faulty vehicle in traffic represents a risk of accident for the driver and
for other r o
ad users.
● Stop the vehicle safely as soon as possible. Park the vehicle a safe
dist
ance from surrounding traffic to lock all the doors in case of an emer-
gency. Turn on the hazard warning lights to warn other road users.
● Never leave children or disabled people alone in the vehicle if the
doors ar
e to be locked. In case of an emergency, passengers will be trap-
ped inside the vehicle. Individuals locked in the vehicle can be exposed
to very high or very low temperatures. Protecting yourself and securing the vehicle Fig. 186 In the centre of
the ins
trument
panel:
Switch for hazard warn-
ing lights.
Always fulfil legal requirements for securing a broken down vehicle. In a
number of cou
ntries it is now obligatory, for example, to turn on the hazard
warning lights and use a reflective safety vest ⇒ page 314.
When being towed with the hazard warning lights on, a change in direction
or traffic lane can be indicated as usual using the turn indicator lever. The
hazard lights will be interrupted temporarily.
Checklist
For your own safety and that of other passengers, the following points
should be observed in the order given ⇒ :
Park the
vehicle a safe distance from traffic and on suitable ground
⇒ .
Turn on the h az
ard warning lights with the button ⇒
fig. 186 .
C
onnect the electronic parking brake ⇒ page 183.
1.
2.
3.

314
If and when
First aid kit, warning triangle, reflective vests and fire
extingui
shers* Fig. 187 On the boot lid:
Warnin
g tri
angle bracket.
Reflective vests
Some vehic
les will have a driver's door compartment to store a reflective
vest ⇒ page 53.
Warning triangle
With the tailgate open, rotate the lock ⇒ fig. 187 90°. Lower the bracket and
remove the warning triangle.
First-aid kit
There is a first aid kit ⇒ page 141 in the rear left-hand side storage com-
partment of the luggage compartment.
The first aid kit must comply with legal requirements. Check the expiry date
of the contents of the first aid kit.
Fire extinguisher
There is a Fire extinguisher underneath the passenger seat. The fire extinguisher must conform to legal requirements, be ready for use
and be check
ed regularly. Check the certification seal on the extinguisher. WARNING
Loose objects in the passenger compartment can be violently thrown in
ca se of
a sudden manoeuvre or braking and especially in accidents caus-
ing serious injury.
● Secure fire extinguishers, first aid kit, reflective vests and warning
triangl
e securely to their respective supports.
Emergency locking and unlocking Introduction The doors, tailgate and panoramic sliding roof can be locked manually and
par
ti
ally opened, for example if the key or the central locking is damaged.
Additional information and warnings:
● Vehicle key set ⇒ pag
e 71
● Central locking and locking system ⇒ pag
e 74
● Doors ⇒ page 80
● T
ailgate ⇒ pag
e 84
● Panorama sliding sunroof ⇒ pag
e 92
● In case of emergency ⇒ pag
e 312

315
If and when WARNING
Opening and closing doors carelessly can cause serious injury.
● If the vehicle is locked from outside, the doors and windows cannot
be opened from the in s
ide.
● Never leave children or disabled people alone in the car. They could
be trapped in the c
ar in an emergency and will not be able to get them-
selves to safety.
● Depending on the time of the year, temperatures inside a locked and
closed
vehicle can be extremely high or extremely low resulting in seri-
ous injuries and illness or even death, particularly for young children. WARNING
Getting in the way of the doors and the panoramic sliding roof is danger-
ous and c
an lead to serious injury.
● Open and close the doors and the panoramic sliding roof only when
nobody i
s in the way. CAUTION
When opening and closing in an emergency, carefully disassemble compo-
nents and then r e
assemble them carefully to avoid damage to the vehicle. Manually locking and unlocking the driver's door Fig. 188 Driver's door
handl
e: Hid
den lock cyl-
inder.
In general, when the driver's door is locked all other doors are locked. Un-
lockin
g manually only opens the driver's door. Please note the instructions
for the antitheft alarm ⇒ page 74.
● Unfold the key shaft ⇒ page 71.
● In
sert the key shaft into the opening in the cover on the driver's door
handle fr
om below ⇒ fig. 188 (arrow) then remove the cover upwards.
● Insert the key shaft into the lock cylinder to unlock or lock the vehicle.
Unlock
ing notes:
● The antitheft alarm will remain active when vehicles are unlocked. How-
ever, the al
arm will not yet be triggered ⇒ page 74.
● If the driver's door is opened, the alarm will be triggered.
● Switch the ignition on. When the ignition is switched on, the electronic
immobi
liser recognises a valid vehicle key and deactivates the anti-theft
alarm system. Safety First Operating instructions Practical tips Technical Data

316
If and when Note
The antitheft alarm is not activated when the vehicle is locked manually us-
ing the k ey
⇒ page 74.
Locking the passenger side door and sliding doors
manual
ly Fig. 189 To the front of
the pa
s
senger side door:
Emergency lock, hidden
by a rubber cap. Fig. 190 Emergency
lock
in
g of the vehicle us-
ing the vehicle key.
The passenger side door and the sliding doors can be locked manually. The
antitheft al
arm is not activated in this case.
● Door open.
● Remove the rubber cap to the front of the door. The rubber cap is
marked w
ith a lock symbol ⇒ fig. 189.
● Unfold the key shaft ⇒ page 71.
● In
sert the key shaft horizontally into the opening and moved the colour
lever f
orwards ⇒ fig. 190.
● Replace the rubber cap and close the door.
● Check if the door is locked.
● Carry out the same operation on the other doors if necessary.
● Have the vehicle checked by a Technical Service. Note
The doors can be opened and unlocked individually from the inside by pull-
ing the in s
ide door handle. To open, pull the inner door release lever twice
⇒ page 74.