2012 MERCEDES-BENZ E-Class CABRIOLET maintenance

Index ....................................................... 4Introduction ......................................... 20At a glance ........................................... 25Safety ................................................... 35Opening/closing ................................. 69Seats, steering wheel and mirrors ..101Lights and windshield wipers ..........115Climate control ................................. 129Driving and parking ..........................143On-board computer and displays ....195Stowing and features .......................251Maintenance and care ......................273Breakdown assistance .....................289Wheels and tires ............................... 307Technical data ................................... 337
Contents3

Audio systemsee separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
AUTO lights
Display message ............................ 225
see Lights
Automatic headlamp mode .............. 118
Automatic transmission Automatic drive program ...............152
Changing gear ............................... 151
Display message ............................ 236
Driving tips .................................... 151
Emergency running mode ..............155
Kickdown ....................................... 151
Manual drive program ....................154
Problem (malfunction) ...................155
Program selector button ................151
Pulling away ................................... 147
Releasing the parking lock
manually ........................................ 155
Selector lever ................................ 149
Shift ranges ................................... 153
Starting the engine ........................146
Steering wheel paddle shifters ......152
Transmission position display ........150
Transmission positions ..................150
Automatic transmission
emergency mode ............................... 155
B
Back support see Lumbar support
Bag hook ............................................ 255
BAS (Brake Assist System) ................. 62
Basic settings see Settings
BAS PLUS (Brake Assist System
PLUS) .................................................... 62
Battery (SmartKey) Checking .......................................... 74
Important safety notes ....................74
Replacing ......................................... 74
Battery (vehicle)
Charging ........................................ 298
Display message ............................ 227
Important safety notes ..................296
Jump starting ................................. 299
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating .................207
Notes/function .............................. 186
see Active Blind Spot Assist
Brake Assist System
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 216
Notes ............................................. 344
Brake fluid level ................................ 278
Brake lamps Display message ............................ 223
Brakes
ABS .................................................. 61
BAS .................................................. 62
BAS PLUS ........................................ 62
Brake fluid (notes) .........................344
Display message ............................ 214
Driving tips .................................... 161
Important safety notes ..................161
Maintenance .................................. 162
Parking brake ................................ 159
Warning lamp ................................. 241
Breakdown
see Flat tire
see Towing away/tow-starting
Bulbs
see Changing bulbs
C
California Important notice for retail
customers and lessees ....................21
Calling up a malfunction
see Display messages
Capacities
see Technical data
Car
see Vehicle
Care
AIRCAP .......................................... 283
Carpets .......................................... 287
Car wash ........................................ 280
Index5

Locking centrallysee Central locking
Locking verification signal (on-
board computer) ............................... 210
Low-beam headlamps Changing bulbs .............................. 124
Display message ............................ 222
Setting for driving abroad
(symmetrical) ................................. 116
Switching on/off ........................... 117
Luggage cover
see Trunk partition
Lumbar support
Adjusting the 4-way lumbar
support .......................................... 107
M
M+S tires ............................................ 310
Maintenance see ASSYST PLUS service interval
display
Malfunction message
see Display messages
Malfunctions relevant to safety
Reporting ......................................... 23
Matte finish (cleaning
instructions) ...................................... 282
mbrace Call priority .................................... 265
Display message ............................ 217
Downloading destinations
(COMAND) ..................................... 265
Emergency call .............................. 262
Important safety notes ..................261
Locating a stolen vehicle ...............267
MB info call button ........................264
Remote vehicle locking ..................267
Roadside Assistance button ..........264
Search & Send ............................... 266
Self-test ......................................... 262
System .......................................... 262
Vehicle remote unlocking ..............266
Mechanical key
Function/notes ................................ 73
Locking vehicle ................................ 79
Unlocking the driver's door ..............79
Memory card (audio) ......................... 204
Memory function ............................... 113
Message memory (on-board
computer) .......................................... 213
Messages see Display messages
Mirrors
see Exterior mirrors
see Rear-view mirror
see Vanity mirror
Mobile phone
Menu (on-board computer) ............204
Modifying the programming
(SmartKey) ........................................... 73
MOExtended run-flat system ........... 295
MP3 Operating ....................................... 204
see separate operating instructions
Multicontour seat .............................. 107
Multifunction display Function/notes ............................. 198
Permanent display .........................208
Multifunction steering wheel
Operating the on-board computer . 197
Overview .......................................... 29
N
Navigation Menu (on-board computer) ............202
On-board computer .......................202
see separate operating instructions
Neck level heating
see AIRSCARF
NECK-PRO head restraints
Operation ......................................... 49
Resetting after being triggered ........49
Notes on breaking-in a new
vehicle ................................................ 144
12Index

Structure and characteristics
(definition) ..................................... 329
Temperature .................................. 325
TIN (Tire Identification Number)
(definition) ..................................... 331
Tire bead (definition) ......................331
Tire pressure (definition) ................331
Tire pressures (recommended) ......329
Tire size (data) ............................... 333
Tire size designation, load-bearing
capacity, speed rating .................... 326
Tire tread ....................................... 309
Tire tread (definition) .....................331
Total load limit (definition) .............332
Traction ......................................... 324
Traction (definition) .......................332
Tread wear ..................................... 324
Uniform Tire Quality Grading
Standards ...................................... 324
Uniform Tire Quality Grading
Standards (definition) ....................329
Unladen weight (definition) ............330
Wear indicator (definition) .............332
Wheel rim (definition) ....................330
see Flat tire
Top Tether ............................................ 58
Towing Important safety guidelines ...........301
Installing the towing eye ................301
Removing the towing eye ...............302
With the rear axle raised ................302
Towing away
With both axles on the ground .......302
Tow-starting
Emergency engine starting ............303
Important safety notes ..................301
Transmission
see Automatic transmission
Transporting the vehicle .................. 302
Trim pieces (cleaning instructions) . 286
Trip computer (on-board
computer) .......................................... 201
Trip meter see Trip odometer
Trip odometer
Calling up ....................................... 201
Resetting (on-board computer) ......202Trunk
Emergency release ..........................82
Important safety guidelines .............80
Locking separately ...........................82
Opening (automatically from
inside) .............................................. 81
Opening (automatically from
outside) ............................................ 81
Trunk lid
Display message ............................ 236
Opening/closing .............................. 80
Trunk partition
Display message ............................ 237
General notes .................................. 93
Opening/closing .............................. 93
Turn signals
Changing bulbs (front) ...................125
Display message ............................ 222
Switching on/off ........................... 119
Type identification plate
see Vehicle identification plate
U
Unlocking Emergency unlocking .......................79
From inside the vehicle (central
unlocking button) ............................. 78
V
Vanity mirror (in sun visor) .............. 258
Vehicle Correct use ...................................... 23
Data acquisition ............................... 24
Display message ............................ 236
Equipment ....................................... 20
Individual settings ..........................208
Limited Warranty ............................. 24
Loading .......................................... 319
Locking (in an emergency) ...............79
Locking (SmartKey) .......................... 71
Lowering ........................................ 295
Maintenance .................................... 21
Parking for a long period ................ 159
Pulling away ................................... 147
Raising ........................................... 292
Reporting problems .........................23
18Index

Product information
Mercedes-Benz recommends that you use
genuine Mercedes-Benz parts, conversion
parts and accessories that have been
approved for the type of vehicle.
Mercedes-Benz tests genuine parts as well as
conversion parts and accessories which have
been specifically approved for your vehicle for
their reliability, safety and suitability. Despite
ongoing market research, Mercedes-Benz is
unable to assess other parts. Therefore,
Mercedes-Benz accepts no responsibility for
the use of such parts in Mercedes-Benz
vehicles, even if they have been
independently or officially approved. The use
of non-approved parts could affect your
vehicle's operating safety. Mercedes-Benz
therefore recommends that you use genuine
Mercedes-Benz parts, conversion parts and
accessories that have been approved for the
type of vehicle. Genuine Mercedes-Benz
parts, approved conversion parts and
accessories are available from any authorized
Mercedes-Benz Center. Here, you will receive
advice about permissible technical
modifications, and the parts will be
professionally installed.
Operator's Manual
Notes on the Operator's Manual
This Operator's Manual contains a great deal
of helpful information. We urge you to read it
carefully and familiarize yourself with the
vehicle before driving.
For your own safety and longer service life of
the vehicle, we urge you to follow the
instructions and warnings contained in this
Operator's Manual. Ignoring them could
result in damage to the vehicle or personal
injury to you or others. Vehicle damage
caused by failure to follow instructions is not
covered by the Mercedes-Benz Limited
Warranty.
Vehicle equipment
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. The equipment in your vehicle may
therefore differ from that shown in the
descriptions and illustrations. All the systems
found in your vehicle are listed in the original
purchase agreement of your vehicle. Should
you have any questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operating Instructions and the
Maintenance Booklet are important
documents and should be kept in the vehicle.
Service and vehicle operation
Service and literature
Your vehicle is covered under the terms of the
warranties printed in the Service and
Warranty Information booklet. Your
authorized Mercedes-Benz Center will
exchange or repair any defective parts
originally installed in the vehicle in
accordance with the terms of the following
warranties:
R New Vehicle Limited Warranty
R Emission Systems Warranty
R Emission Performance Warranty
R California, Connecticut, Maine,
Massachusetts, New York, Pennsylvania,
Rhode Island and Vermont Emission
Control Systems Warranty
R State Warranty Enforcement Laws (Lemon
Laws)
20Introduction

Information for customers in
California
Under California law you may be entitled to a
replacement of your vehicle or a refund of the
purchase price or lease price, if after a
reasonable number of repair attempts
Mercedes-Benz USA, LLC and/or its
authorized repair or service facilities fail to fix
one or more substantial defects or
malfunctions in the vehicle that are covered
by its express warranty. During the period of
18 months from original delivery of the
vehicle or the accumulation of 18 000 miles
(approximately 29 000 km) on the odometer
of the vehicle, whichever occurs first, a
reasonable number of repair attempts is
presumed for a retail buyer or lessee if one or
more of the following occurs:(1)the same substantial defect or
malfunction results in a condition that is
likely to cause death or serious bodily
injury if the vehicle is driven, that defect
or malfunction has been subject to repair
two or more times, and you have directly
notified Mercedes-Benz USA, LLC in
writing of the need for its repair.(2)the same substantial defect or
malfunction of a less serious nature than
category (1) has been subject to repair
four or more times and you have directly
notified Mercedes-Benz in writing of the
need for its repair.(3)the vehicle is out of service by reason of
repair of the same or different substantial
defects or malfunctions for a cumulative
total of more than 30 calendar days.
Please send your written notice to:
Mercedes-Benz USA, LLC
Customer Assistance Center
One Mercedes Drive
Montvale, NJ 07645-0350
Maintenance
The Service and Warranty Booklet describes
all the necessary maintenance work which
should be done at regular intervals.
Always have the Service and Warranty
Booklet with you when you bring the vehicle
to an authorized Mercedes-Benz Center. The
service advisor will record every service for
you in the Service and Warranty Booklet.
Roadside Assistance
The Mercedes-Benz Roadside Assistance
Program offers technical help in the event of
a breakdown. Calls to the toll-free Roadside
Assistance Hotline are answered by our
agents 24 hours a day, 365 days a year.
1-800-FOR-MERCedes(1-800-367-6372)
(USA)
1-800-387-0100 (Canada)
For additional information, refer to the
Mercedes-Benz Roadside Assistance
Program brochure (USA) or the "Roadside
Assistance" section in the Service and
Warranty booklet (Canada). You will find both
in your vehicle literature portfolio.
Change of address or change of
ownership
In the event of a change of address, please
send us the "Change of Address Notice"
found in the Service and Warranty
Information Booklet, or simply call the
Mercedes-Benz Customer Assistance Center
(in the USA) at the hotline number
1-800-FOR-MERCedes(1-800-367-6372) or
Customer Service Center (in Canada) at
1-800-387-0100. This will assist us in
contacting you in a timely manner should the
need arise.
If you sell your Mercedes, please leave the
entire literature in the vehicle so that it is
available to the next owner.
Introduction21

If you bought this vehicle used, be sure to
send in the "Notice of Purchase of Used Car"
found in the Service and Warranty
Information Booklet, or call the Mercedes-
Benz Customer Assistance Center (in the
USA) at
1-800-FOR-MERCedes(1-800-367-6372) or
Customer Service (in Canada) at
1-800-387-0100.
Vehicle operation outside the USA
and Canada
If you plan to operate your vehicle in foreign
countries, please be aware that:
R service facilities or replacement parts may
not be readily available.
R unleaded fuel for vehicles with a catalytic
converter may not be available. Leaded fuel
may cause damage to the catalytic
converter.
R the fuel may have a considerably lower
octane rating. Unsuitable fuel can cause
engine damage.
Some Mercedes-Benz models are available
for delivery in Europe through our European
Delivery Program. For details, consult an
authorized Mercedes-Benz Center or write to
one of the following addresses.
In the USA
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Operating safety
Safety notes
GWARNING
Work improperly carried out on electronic
components and associated software could
cause them to cease functioning. Because the
vehicle's electronic components are
interconnected, any modifications made may
produce an undesired effect on other
systems. Electronic malfunctions could
seriously impair the operating safety of your
vehicle.
Contact an authorized Mercedes-Benz Center
for repairs or modifications to electronic
components.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function when the
engine is running. You should therefore never
turn off the engine while driving.
GWARNING
Heavy blows against the vehicle underbody or
tires/wheels may cause serious damage and
impair the operating safety of your vehicle.
Such blows can be caused, for example, by
running over an obstacle, road debris or a
pothole.
If you feel a sudden significant vibration or
ride disturbance, or you suspect that damage
to your vehicle has occurred:
R turn on your hazard warning flashers.
R slow down carefully.
R drive with caution to an area which is a safe
distance from the road.
Inspect the vehicle underbody and tires/
wheels for possible damage. If the vehicle
appears unsafe, have it towed to the nearest
authorized Mercedes-Benz Center or other
qualified maintenance or repair facility for
further inspection or repairs.
22Introduction

Qualified specialist workshop
An authorized Mercedes-Benz Center is a
qualified specialist workshop. It has the
necessary specialist knowledge, tools and
qualifications to correctly carry out the work
required on your vehicle. This is especially the
case for work relevant to safety.
Observe the notes in the service booklet.
Always have the following work carried out at
an authorized Mercedes-Benz Center:
R work relevant to safety
R service and maintenance work
R repair work
R alterations, installation work and
modifications
R work on electronic components
Proper use
GWARNING
There are various warning stickers affixed to
your vehicle. Their purpose is to alert you and
others to various dangers. Therefore, do not
remove any warning stickers unless the
sticker clearly states that you may do so.
If you remove any warning stickers, you or
others could fail to recognize certain dangers
and be injured.
The proper use of the vehicle requires that
you familiarize yourself with the following
information and rules:
R safety notes in this Operator's Manual
R technical data in this Operator's Manual
R traffic rules and regulations
R laws and safety standards pertaining to
motor vehicles
Problems with your vehicle
If you should experience a problem with your
vehicle, particularly one that you believe may
affect its safe operation, we urge you to
contact an authorized Mercedes-Benz Center
immediately to have the problem diagnosed
and rectified. If the problem is not resolved to
your satisfaction, please discuss the problem
again with a Mercedes-Benz Center or
contact us at one of the following addresses.
In the USA
Customer Assistance Center
Mercedes-Benz USA, LLC
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Reporting malfunctions relevant to
safety
For the USA only:
The following text is reproduced as required
of all manufacturers according to Title 49,
Code of U.S. Federal Regulations, Part 575
pursuant to the National Traffic and Motor
Vehicle Safety Act of 1966.
Reporting safety defects
If you believe that your vehicle has a defect
which could cause a crash or could cause
injury or death, you should immediately
inform the National Highway Traffic Safety
Administration (NHTSA) in addition to
notifying Mercedes-Benz USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a
safety defect exists in a group of vehicles, it
may order a recall and remedy campaign.
However, NHTSA cannot become involved in
individual problems between you, your
dealer, or Mercedes-Benz USA, LLC.
Introduction23Z