ECU MERCEDES-BENZ E-Class CABRIOLET 2014 C207 Service Manual

Problem Possible causes/consequences and
0001 Solutions
000E
The red coolant
warning lamp comes on
while the engine is
running. The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be
malfunctioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 315).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the coolant temperature is
under 248 ‡(120 †). Otherwise, the engine could be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. 000E
The red coolant
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The
airflow to the engine radiator may be blocked or the coolant level
may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive whe nyour engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182).Indicator and warning lamps in the instrument cluster
283On-board computer and displays Z

Tires
Problem Possible causes/consequences and
0001 Solutions
0017
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at
leas
tone of the tires.
G WARNING
With tire pressures which ar etoo low, there is a risk of the
following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 182).
X Observe the additional display messages in the multifunction
display.
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 328).
X Check the tire pressure (Y page 352).
X If necessary, correct the tire pressure. 0017
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) flashes for
approximately one
minute and then
remains lit.
The tire pressure monitor is faulty.
G WARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Visit a qualified specialist workshop. Indicator and warning lamps in the instrument cluster
285On-board computer and displays Z

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 25).Stowage areas
Loading guidelines
G
WARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury,
particularly in the even tofsudden braking or
a sudde nchange in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion. There is
a risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open. The handling characteristics of a laden
vehicle are dependent on the distribution of
the load within the vehicle. For this reason,
you should observe the following notes when
transporting a load:
R
Never exceed the maximum permissible
gross vehicle weight or the gross axle
weight rating of the vehicle (including
occupants). The values are specified on the
vehicle identification plate on the B-pillar of
the driver's door.
R The trunk is the preferred place to carry
objects.
R Position heavy loads as far forwards as
possible and as low down in the trunk as
possible.
R The load must not protrude above the
upper edge of the seat backrests.
R Always place the load against the rear or
front seat backrests. Make sure that the
seat backrests are securely locked into
place.
R Always place the load behind unoccupied
seats if possible.
R Use the cargo tie down rings and the parcel
nets to transport loads and luggage.
R Use cargo tie-down rings and fastening
materials appropriate for the weight and
size of the load.
R Secure the load with sufficiently strong and
wear-resistant tie-downs. pad sharp edges
for protection. Stowage space
Important safety notes G
WARNING
If you do not correctly store objects in the
vehicle interior, they can slip or be flung
around, thus striking vehicle occupants.
There is a risk of injury, especially when
braking or abruptly changing directions. 288
Stowage areasStowage and features

R
Always store objects so tha tthey cannot be
flung around in these or in similar
situations.
R Always make sure that objects do not
protrude from stowage compartments,
parcel nets or stowage nets.
R Close lockable stowage compartments
while driving.
R Stow and secure objects that are heavy,
hard, pointy, sharp-edged, fragile or too
large in the trunk.
Observe the loading guidelines (Y page 288).
Glove box X
To open: pull handle 0002and open glove box
flap 0003.
X To close: fold glove box flap 0003upwards
until it engages.
i The glove box can be ventilated
(Y page 160). The glove box can only be locked and
unlocked using the mechanical key. X
To lock: insert the mechanical key into the
lock and turn it 90° clockwise to position
0007.
X To unlock: insert the mechanical key into
the lock and turn it 90° counter-clockwise
to position 0006.
Stowage compartment in the center
console X
Briefly press trim 0003in the direction of the
arrow.
Cover 0002swings upwards.
Stowage compartment under the
armrest X
To open: press left-hand button 0003or right-
hand button 0002.
The stowage compartmento pens.
i Coupe: instead of a soft top switch, an
additional stowage compartment can be
found in front of the armrest.
i Depending on the vehicle's equipment, a
USB connection and an AUX IN connection Stowage areas
289Stowage and features Z

or a Media Interface are installed in the
stowage compartment. A Media Interface
is a universal interface for mobile audio
equipment, e.g. for an iPod
®
or MP3 player
(see the separate COMAND Operating
Instructions).
Stowage compartment under the front
seats G
WARNING
If you exceed the maximum load for the
stowage compartment, the cover may not be
able to restrain the items. Items may be
thrown out of the stowage compartment and
hit vehicle occupants. There is a risk of injury,
particularly in the event of sudden braking or
a sudden change in direction.
Never exceed the maximum permissible load
for the stowage compartment. Stow and
secure heavy objects in the trunk.
The maximum permissible load of the
stowage compartment is 3.3 lbs (1.5 kg). X
To open: pull handle 0002up and fold
cover 0003forwards. Stowage nets
Stowage nets are located in the front-
passenger footwell and on the left-hand side
of the trunk (Coupe) or left and right-hand
sides of the trunk (Cabriolet). Observe the loading guidelines (Y
page 288)
and the safety notes regarding stowage
spaces (Y page 288). Through-loading facility in the rear
X
Fold down rear seat armrest 0023.
X Pull handle 0002and fold cover 0003
downwards.
Observe the loading guidelines (Y page 288). Through-loading facility in the rear
bench seat (Coupe)
Important safety notes G
WARNING
If the rear bench seat/rear seat and seat
backrest are not engaged they could fold
forwards, e.g. when braking suddenly or in the
event of an accident.
R The vehicle occupant would thereby be
pushed into the seat belt by the rear bench
seat/rear seat or by the seat backrest .The
seat belt can no longer offer the intended
level of protection and could even cause
injuries.
R Objects or loads in the trunk cannot be
restrained by the seat backrest.
There is an increased risk of injury.
Before every trip, make sure that the seat
backrests and the rear bench seat/rear seat
are engaged. 290
Stowage areasStowage and features

Observe the loading guidelines (Y
page 288).
The left-hand and right-hand rear seat
backrests can be folded down separately to
increase the trunk capacity.
Folding the seat backrest forward i
Vehicles with memory function: when you
fold one or both parts of the rear seat
backrest forwards, the respective front
seat moves forward slightly, when
necessary, in order to avoid contact.
X Vehicles without memory function: if
necessary, move the driver's or front-
passenger seat forwards.
X Open the trunk.
X Pull right-hand or left-hand rear seat
backrest release handle 0002.
The corresponding rear seat backrest is
released. X
Fold rear seat backrest 0003forwards.
X Move the driver's or front-passenger seat
back if necessary. Folding the seat backrest back !
Make sure that the seat belt does not
become trapped when folding the rear seat
backrest back. Otherwise, it could be
damaged. X
Move the driver's or front-passenger seat
forward if necessary.
X Fold rear seat backrest 0002back until it
engages.
If the rear seat backrest is not engaged and
locked, this will be shown in the
multifunction display in the instrument
cluster. Awarning tone also sounds.
X Move the driver's or front-passenger seat
back if necessary.
i You should always engage the rear seat
backrests if you do no tneed the through-
loading feature. This will prevent
unauthorized access to the trunk from the
vehicle interior. Securing cargo
Cargo tie-down rings General notes
Observe the following notes on securing
loads:
R
Observe the loading guidelines
(Y page 288).
R Secure the load using the cargo tie-down
rings. Stowage areas
291Stowage and features Z

R
Distribute the load on the cargo tie-down
rings evenly.
R Do not use elastic straps or nets to secure
a load, as these are only intended as an
anti-slip protection for ligh tloads.
R Do not route tie-downs across sharp edges
or corners.
R Pad sharp edges for protection.
Trunk Example: Coupe
There are four cargo tie down rings in the
trunk on the Coupe and two cargo tie down
rings in the trunk sill on the Cabriolet.
X
Coupe: fold up cargo tie down rings 0002next
to the rear seat backrest and push them
through the slits in the carpet.
Bag hook G
WARNING
The bag hooks cannot restrain heavy objects
or items of luggage. Objects or items of
luggage could be flung around and thereby hit
vehicle occupants when braking or abruptly
changing directions. There is a risk of injury.
Only hang light objects on the bag hooks.
Never hang hard, sharp-edged or fragile
objects on the bag hooks.
! The bag hook can bear a maximum load
of 6.6lbs (3kg) and should not be used to
secure a load. 0002
Bag hook Stowage well under the trunk floor
! Unhook the handle before again before
closing the trunk lid and clip it in securely
to prevent the handle flap from protruding.
Otherwise, you could damage the handle. The TIREFIT kit, the vehicle tool kit, etc. are
located in the stowage compartment.
X
To open: pull handle 0002up. Example: Coupe292
Stowage areasStowage and features

X
Coupe: hook handle 0002into rain
trough 0003.
X Cabriolet: pull the trunk floo rslightly
towards you and the nhook handle 0002into
rain trough 0003. Roof carrier (Coupe)
Important safety notes G
WARNING
When you load the roof, the center of gravity
of the vehicle rises and the driving
characteristics change. If you exceed the
maximum roof load, the driving
characteristics, as well as steering and
braking, will be greatly impaired. There is a
risk of an accident.
Never exceed the maximum roof load and
adjust your driving style.
! Mercedes-Benz recommends that you
only use roof carriers that have been tested
and approved for Mercedes-Benz vehicles.
This helps to prevent damage to the
vehicle.
Position the load on the roof rack in such a
way that the vehicle will not sustain
damage even when it is in motion.
Depending on the vehicle equipment,
ensure that when the roof carrier is
installed you can:
R open the panorama roof with power tilt/
sliding panel fully
R open the trunk lid fully
! To avoid damaging or scratching the
covers, do not use metallic or hard objects
to open them.
The maximum roof load is 220 lbs(100 kg).
An incorrectly secured roof carrier or roof
load may become detached from the vehicle.
You must therefore ensure that you observe
the roof carrier manufacturer's installation
instructions. Attaching the roof carrier
Vehicles with a steel roof
Vehicles with a panorama roof with power tilt/
sliding panel
X
Open covers 0002carefully in the direction of
the arrow.
X Fold covers 0002upwards.
X Only secure the roof carrier to the
anchorage points under covers 0002.
X Observe the manufacturer's installation
instructions. Features
Cup holder
Important safety notes !
Only use the cup holders for containers of
the right size and which have lids. The
drinks could otherwise spill. Features
293Stowage and features Z

R
The indicator lamp in the 0009MB Info call
button does not light up during self-
diagnosis of the system.
R The indicator lamp in one or more of the
following buttons continues to light up red
after the system self-diagnosis:
-SOS button
- 0007 Roadside Assistance call button
- 0009 MB Info call button
R After the system self-diagnosis, the
Inoperative or
Service Not Activated message appears in the
multifunction display.
If a malfunction is indicated as outlined
above, the system may not operate as
expected. In the event of an emergency, help
will have to be summoned by other means.
Have the system checked at the nearest
authorized Mercedes-Benz Center or contact
the following service hotlines:
R USA: Mercedes-Benz Customer Assistance
Center at
1-800-FOR-MERCedes (1-800-367-6372)
or 1-866-990-9007
R Canada: Customer Service at
1-888-923-8367
Emergency call Important safety notes
G
WARNING
It can be dangerous to remain in the vehicle,
even if you have pressed the SOS button in an
emergency if:
R you see smoke inside or outside of the
vehicle, e.g. if there is a fire after an
accident
R the vehicle is on a dangerous section of
road
R the vehicle is not visible or cannot easily be
seen by other road users, particularly when
dark or in poor visibility conditions
There is a risk of an accident and injury. Leave the vehicle immediately in this or
similar situations as soon as it is safe to do
so. Move to a safe location along with other
vehicle occupants. In such situations, secure
the vehicle in accordance with national
regulations, e. g. with a warning triangle.
You must have a license agreement to
activate the mbrace service. Make sure that
your system is activated and operational. To
register, press the 0009MB Info call button.
If any of the steps mentioned are not carried
out, the system may not be activated.
If you have questions about the activation,
contact one of the following telephone
hotlines:
R USA: Mercedes-Benz Customer Assistance
Center at
1-800-FOR-MERCedes (1-800-367-6372)
or 1-866-990-9007
R Canada: Customer Service at
1-888-923-8367
General notes
An emergency call is dialed automatically if
an air bag or Emergency Tensioning Device is
triggered.
i You cannot end an automatically
triggered emergency call yourself.
An emergency call can also be initiated
manually.
As soon as the emergenc ycall has been
initiated, the indicator lamp in the SO Sbutton
flashes .The multifunction display shows the
Connecting Call message.
The audio output is muted.
Once the connection has been made, the
Call Connected message appears in the
multifunction display.
All important information on the emergency
is transmitted, for example:
R Current location of the vehicle (as
determined by the GPS system)
R Vehicle identification number
R Information on the severity of the accident 298
FeaturesStowage and features

The integrated garage door opener is
compatible with devices that have units
which operate in the frequency range of
280to 433MHz.
R Replace the batteries in garage door
remote control 0020.This increases the
likelihood that garage door remote control
0020 will transmit a stronga nd precise signal
to the integrated garage door opene rinthe
rear-view mirror.
R When programming, hold remote control
0020 at varying distances and angles from the
button that you are programming. Try
various angles at a distance between 2and
12 inches (5to 30 cm) or at the same angle
but at varying distances.
R If another remote control for the same
garage door drive is available, repeat the
same programming steps with this remote
control. Before performing these steps,
make sure that new batteries have been
installed in garage door drive remote
control 0020.
R Note that some remote controls only
transmit for a limited amount of time (the
indicator lamp on the remote control goes
out). Press button 0021on remote control
0020 again before transmission ends.
R Align the antenna cable of the garage door
opener unit. This can improve signal
reception/transmission.
Opening/closing the garage door After it has been programmed, the integrated
garage door opener performs the function of
the garage door system remote control.
Please also read the operating instructions
for the garage door system.
X
Turn the SmartKey to position 2in the
ignition lock.
X Press button 0003,0023or0022 which you have
programmed to operate the garage door.
Garage door system with a fixed code:
indicator lamp 0002lights up green. Garage door system with a rolling code:
indicator lamp
0002flashes green.
i The transmitter will transmit a signal as
long as the button is pressed. The
transmission is halted after a maximum of
ten seconds and indicator lamp 0002lights
up yellow. Press button 0003,0023or0022 again
if necessary.
Clearing the memory X
Turn the SmartKey to position 2in the
ignition lock.
X Press buttons 0003and 0022.
The indicator lamp lights up yellow.
X Press and hold buttons 0003and 0022until the
indicator lamp turns green.
i Make sure that you clear the memory of
the integrated garage door opener before
selling the vehicle. Floormats
G
WARNING
Objects in the driver's footwell can restrict the
pedal travel or obstruct adepressed pedal.
The operating and road safety of the vehicle
is jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficien tclearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another. 308
FeaturesStowage and features