Page 249 of 373
246 212_AKB; 2; 4, en-GB
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Page 250 of 373

Where will I find...?
...........................248
Display messages ............................. 251
Troubleshooting ................................ 278
Locking/unlocking in an emer-
gency ................................................. 299
Resetting the active bonnet
(pedestrian protection) after trig-
gering ................................................. 302
Resetting triggered NECK-PRO
head restraints .................................. 303
Replacing batteries (key and
remote control) ................................. 303
Changing bulbs ................................. 304
Replacing the wiper blades ..............308
Flat tyre ............................................. 309
Battery ............................................... 319
Jump-starting .................................... 323
Towing and tow-starting ..................324
Fuses .................................................. 327 247Practical advice
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Page 251 of 373

Where will I find...?
Warning triangle
Saloon The warning triangle is secured on the inside
of the boot lid. X
Turn the catch 90° in the direction of the
arrow and remove warning triangle :.
Estate The warning triangle is located behind the
right-hand side trim panel in the luggage com-
partment.
X Open the right-hand side trim panel. X
Remove warning triangle :.Setting up the warning triangle X
Fold feet =down and out to the side.
X Pull side reflectors ;up to form a triangle
and lock them at the top using press-
stud :. First-aid kit
i Check the expiry date of the first-aid kit
annually, and replace the contents when
necessary.
Saloon The first-aid kit is located in the boot, in the
right-hand side trim panel behind the wheel
arch.
X
Slide down the luggage net.
X Open the stowage compartment. X
Release strap :.
X Remove first-aid kit ;.248
Where will I find...?Practical advice
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Page 252 of 373

Estate
The first-aid kit is located in the rear of the
luggage compartment on the right-hand side.
Vehicles without a TV tuner
Vehicles with a TV tuner
X On vehicles with a TV tuner: open the
right-hand side trim panel.
X Remove first-aid kit :. Fire extinguisher*
i Have the fire extinguisher refilled after
each use and checked every two years.
Otherwise, it may fail in an emergency.
Observe the legal requirements in all coun-
tries concerned. The fire extinguisher is located underneath
the front of the driver's seat. X
Pull tab :upwards.
X Remove fire extinguisher ;. Vehicle tool kit
*, jack*, TIREFIT kit
and the "Minispare" emergency
spare wheel*
Saloon: the vehicle tool kit, jack, TIREFIT kit
and "Minispare" emergency spare wheel are
in the stowage compartment under the boot
floor (Y page 204).
Estate: the vehicle tool kit, jack, TIREFIT kit
and "Minispare" emergency spare wheel are
in the stowage compartment under the lug-
gage compartment floor (Y page 204). G
Risk of injury
The jack is designed only to raise and hold the
vehicle for a short time while a wheel is being
changed.
You must use axle stands if you are carrying
out work on the vehicle.
Make sure that the jack is placed on a firm,
non-slip, level surface. Do not use wooden
blocks or similar objects as a jack underlay.
The vehicle could otherwise fall off the jack
and seriously injure you.
Do not start the engine at any time while a
wheel is being changed.
Do not lie under the vehicle when it is being
supported by the jack. If you do not raise the
vehicle as described, it could slip off the jack Where will I find...?
249Practical advice
* optional
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Page 253 of 373

(e.g. if the engine is started or if a door or the
boot lid/tailgate is opened or closed) and you
could be seriously injured.
i When using the jack, you should also
observe the safety notes in the "Flat tyre"
section (Y page 316).
Vehicles with a TIREFIT kit X
Saloon: open the boot floor (Y page 204).
X Estate: open the EASY-PACK folding lug-
gage compartment floor (Y page 204).:
TIREFIT kit
; Folding wheel chock
= Electric air pump
? Towing eye
A Jack
B Centring pin
C Wheel wrench Vehicles with BlueTEC :
TIREFIT kit
; Electric air pump
= Jack
? Towing eye
A Wheel wrench
B Fuse allocation chart/gloves
C Folding wheel chock
D Centring pin
Vehicles with a "Minispare" emer-
gency spare wheel* (Saloon) X
Open the boot floor (Y page 204). X
Release tabs :on the right of well
insert ;.
X Reach into recess =of well insert ;,
swing the insert up and remove it. 250
Where will I find...?Practical advice
* optional
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Page 254 of 373

Vehicles with a "Minispare" emer-
gency spare wheel* (Estate)
X
Estate without a folding bench seat*:
open the EASY-PACK folding luggage com-
partment floor ( Ypage 204).
X Estate with a folding bench seat *:
remove the seat cushions of the folding
bench seat (Y page 83). Estate without a folding bench seat
X
Estate without a folding bench seat*:
remove stowage space :.
X Estate with folding bench seat*: open
the luggage compartment floor.
Remove the "Minispare" emergency
spare wheel* (Saloon and Estate with-
out folding bench seat*) X
Remove vehicle tool kit tray :.
X Turn stowage well ;anti-clockwise and
remove it.
X Take out "Minispare" emergency spare
wheel =. Remove the "Minispare" emergency
spare wheel* (Estate with folding
bench seat*)
X
Remove vehicle tool kit tray :by
recess ;.
X Take out "Minispare" emergency spare
wheel =. Display messages
Notes
G
Risk of accident
The on-board computer only records and
shows malfunctions and warnings from cer-
tain systems. Therefore, make sure that your
vehicle is safe to use. You could otherwise
cause an accident by driving an unsafe vehi-
cle.
Certain display messages are accompanied
by a warning tone or a continuous tone.
The multi-function display shows high-priority
display messages in red.
Please respond in accordance with the dis-
play messages and follow the additional
notes in this Owner's Manual. G
Risk of accident
If the instrument cluster or the multi-function
display fails, then no display messages can be
shown.
You will not then be able to see information
about the vehicle status, such as speed and Display messages
251Practical advice
* optional
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Page 255 of 373

outside temperature, warning and indicator
lamps, display messages or the failure of sys-
tems. The vehicle’s handling characteristics
may be affected. Adapt your driving style and
speed accordingly.
Immediately consult a qualified specialist
workshop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use a Mercedes-Benz Service Centre for
this purpose. In particular, work relevant to
safety or on safety-related systems must be
carried out at a qualified specialist workshop.
When you stop and park the vehicle, please
observe the instructions provided for HOLD
(Y page 151)and parking (Y page 107).
Calling up display messages The on-board computer saves certain display
messages, which you can call up.
X Press =or; on the steering wheel
to select the Servicemenu.
If there are display messages, the multi-
function display shows, e.g. 2 messages.
X Using 9or: select the entry, e.g.
2 messages. X
Confirm with a.
X Using :or9 scroll through the dis-
play messages.
Hiding display messages You cannot hide display messages of the
highest priority. The multi-function display
shows these messages continuously until
their causes have been remedied.
Use the buttons on the multi-function steer-
ing wheel.
X
Use the aor% button on the steer-
ing wheel to hide the display message.
The following tables contain all the display
messages. Text messages
G
Risk of accident and injury
The operating safety of the vehicle can be compromised if maintenance work is carried out
incorrectly. This could cause you to lose control of the vehicle and cause an accident. The safety
systems may also not be able to protect you or others as they are designed to do.
Always have maintenance work carried out at a qualified specialist workshop. The qualified spe-
cialist workshop must have the necessary specialist knowledge and tools to carry out the work
required. Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this
purpose. In particular, work relevant to safety or on safety-related systems must be carried out
at a qualified specialist workshop. 252
Display messagesPractical advice
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Page 256 of 373

Display messages
Possible causes/consequences and
X
X Solutions 120 km/h Maximum
speed
exceeded
The maximum speed has been exceeded
40
.
X Drive more slowly. Adaptive
Main-beam
Assist inopera‐
tive
Adaptive Highbeam Assist* is faulty.
X
Visit a qualified specialist workshop. Active
bonnet malfunc‐
tion See
Owner's
Manual The active bonnet function (pedestrian protection) is not
active due to a malfunction.
X
Visit a qualified specialist workshop. Auxiliary
battery malfunc‐
tion The auxiliary battery for the automatic transmission is no lon-
ger being charged.
X
Visit a qualified specialist workshop. P Select
Park (P)
Vehicles with automatic transmission* with a selector lever:
You have switched off the engine with the start/stop but-
ton* and opened the driver's door.
You attempted to lock the vehicle.
A warning tone also sounds.
X
Move the selector lever to P.P Select
Park (P)
Vehicles with automatic transmission* with a selector lever:
With the HOLD function or Distronic Plus
*activated, you
have:
R opened the driver's door and released the seat belt or
R switched off the engine or
R opened the bonnet
A tone may also sound at regular intervals. The tone becomes
louder if you attempt to lock the vehicle.
You cannot start the engine.
X Move the selector lever to P.
You can restart the engine. Only
select Park (P)
when vehi‐
cle is
stationary
Vehicles with a DIRECT SELECT lever*: the vehicle is still in
motion.
X
Stop the vehicle.
X Shift the automatic transmission* to P.40
Only for certain countries. Display messages
253Practical advice
* optional
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