2003 MERCEDES-BENZ C230 COUPE service

Our company and staff congratulate you
on the purchase of your new
Mercedes-Benz.
Your selection of our product is a demon-
stration of your trust in our company
name. Further, it exemplifies your desire to
own an automobile that will be as easy as
possible to operate and provide years of
service.
Your Mercedes-Benz represents the ef-
forts of many skilled engineers and crafts-
men. To help assure your driving pleasure,
and also the safety of you and your passen-
gers, we ask you to make a small invest-
ment of time:


Please read this manual carefully be-
fore putting it aside. Then return it to
your vehicle where it will be handy for
your reference.


Please follow the recommendations
contained in this manual. They are de-
signed to acquaint you with the opera-
tion of your Mercedes-Benz.


Please pay attention to the warnings
and cautions contained in this manual.
They are designed to help improve the
safety of the vehicle operator and oc-
cupants.
We extend our best wishes for many miles
of safe, pleasurable driving.
Mercedes-Benz USA, LLC
A DaimlerChrysler Company

Contents
Introduction ......................................... 9
Product information ............................... 9
Operator’s Manual ............................... 10
Service and warranty information .. 10
Important notice for California
retail buyers and lessees of
Mercedes-Benz automobiles .......... 11
Maintenance .................................. 12
Roadside Assistance ...................... 12
Change of address or ownership .... 12
Operating your vehicle outside
the USA or Canada ......................... 13
Where to find it .................................... 14
Symbols ............................................... 15
Operating safety .................................. 16
Proper use of the vehicle ............... 16
Problems with your vehicle .................. 17
Reporting safety defects ...................... 18
Reporting Safety Defects ............... 18
At a glance.......................................... 19
Cockpit .................................................20
Instrument cluster ................................22
Multifunction steering wheel ................24
Center console .....................................25
Overhead control panel ........................26
Door control panel ................................27Getting started ...................................29
Unlocking .............................................30
Unlocking with the SmartKey ..........30
Adjusting ..............................................32
Seats ...............................................32
Steering wheel ................................37
Mirrors ............................................39
Driving ..................................................41
Fastening the seat belt ...................41
Starting the engine .........................44
Switching on headlamps .................47
Turn signals and high beam ............47
Windshield wipers ...........................48
Problems while driving ....................50Parking and locking .............................. 51
Parking brake .................................. 51
Switching off headlamps ................. 52
Turning off engine ........................... 52
Safety and Security ........................... 55
Occupant safety ................................... 56
Airbags ........................................... 57
Seat belts ....................................... 62
Children in the vehicle .................... 65
Panic alarm* ........................................ 72
Activating ........................................ 72
Deactivating .................................... 72
Driving safety systems ......................... 73
ABS ................................................. 73
BAS ................................................. 74
ESP ................................................. 75
Anti-theft systems ................................ 78
Immobilizer ..................................... 78
Anti-theft alarm system* ................ 78
Tow-away alarm* ............................ 79

ContentsTires and wheels ................................ 233
Important guidelines .................... 233
Life of tire ..................................... 234
Direction of rotation ..................... 234
Checking tire inflation pressure ... 234
Rotating wheels ............................ 235
Winter driving..................................... 236
Winter tires ................................... 236
Block heater (Canada only) .......... 237
Snow chains ................................. 237
Maintenance ...................................... 238
Clearing the service indicator....... 238
Service term exceeded ................. 238
Calling up the service indicator .... 239
Resetting the service indicator ..... 239
Vehicle care ....................................... 240
Cleaning and care of vehicle ........ 240
Practical hints.................................. 245
What to do if … .................................. 246
Lamps in instrument cluster ......... 246
Lamp in center console ................ 251
Messages in the display ............... 252
Where will I find ... ............................. 271
First aid kit ................................... 271
Spare wheel ................................. 271
Vehicle tool kit ............................. 272
Unlocking/locking in an emergency .. 274
Unlocking the vehicle ................... 274
Locking the vehicle ...................... 275
Changing batteries ....................... 276
Fuel filler flap ............................... 277
Manually unlocking the
transmission selector lever .......... 277
Opening/closing in an emergency ..... 278
Panorama sliding/pop-up roof ..... 278
Replacing bulbs ................................. 280
Bulbs ............................................ 280
Replacing bulbs for front lamps ... 282
Side marker lamp bulb ................. 285
Replacing bulbs for rear lamps ..... 285Replacing wiper blades ...................... 287
Removing ..................................... 287
Installing ...................................... 287
Flat tire .............................................. 288
Preparing the vehicle ................... 288
Mounting the spare wheel ............ 288
Battery ............................................... 294
Disconnecting the battery ............ 295
Removing the batteries ................ 295
Charging and reinstalling
batteries ...................................... 295
Reconnecting the batteries .......... 295
Jump starting ..................................... 297
Towing the vehicle ............................. 299
Installing towing eye bolt ............. 302
Fuses ................................................. 303
Fuse box in passenger
compartment ............................... 303
Fuse box in engine compartment . 303
Auxiliary fuse box in trunk ............ 304

Contents
Technical data................................. 305
Spare parts service ............................ 306
Warranty coverage ............................. 307
Loss of Service and Warranty
Information Booklet ..................... 307
Identification labels ........................... 308
Certification label ......................... 308
Vehicle Identification Number
(VIN) ............................................. 308
Identification labels and numbers 308
Layout of poly-V-belt drive ................. 309
C 230 Kompressor ....................... 309
C 320 ........................................... 309
Engine ................................................ 310
Rims and Tires ................................... 311
Same size tires ............................. 311
Mixed size tires ............................ 312
Spare wheel ................................. 313Electrical system ................................ 314
Main Dimensions ................................ 315
Weights .............................................. 316
Fuels, coolants, lubricants etc. .......... 317
Capacities ..................................... 317
Engine oils .................................... 319
Engine oil additives ....................... 319
Air conditioning refrigerant .......... 319
Brake fluid .................................... 319
Premium unleaded gasoline ......... 320
Fuel requirements ........................ 320
Gasoline additives ........................ 321
Coolants ...................................... 321
Windshield and headlamp
washer system ............................. 324
Consumer information ....................... 325
Uniform tire quality grading ......... 325
Technical terms ...............................327Index .................................................333

10 IntroductionOperator’s Manual
Operator’s ManualThis Operator’s Manual contains a great
deal of useful 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 in-
structions and warnings contained in this
manual. Ignoring them could result in dam-
age to the vehicle or personal injury to you
or others. Vehicle damage caused by fail-
ure to follow instructions is not covered by
the Mercedes-Benz Limited Warranty.
Your vehicle may have some or all of the
equipment described in this manual.
Therefore, you may find explanations for
optional equipment not installed in your
vehicle. If you have any questions about
the operation of any equipment, your au-
thorized Mercedes-Benz Center will be
glad to demonstrate the proper proce-
dures.We continuously strive to improve our
product, and ask for your understanding
that we reserve the right to make changes
in design and equipment. Therefore, infor-
mation, illustrations and descriptions in
this Operator’s Manual might differ from
your vehicle.
Optional equipment is also described in
this manual, including operating instruc-
tions wherever necessary. Since they are
special-order items, the descriptions and
illustrations herein may vary slightly from
the actual equipment of your vehicle.
If there are any equipment details that are
not shown or described in this Operator’s
Manual, your authorized Mercedes-Benz
C e n t e r w i l l b e g l a d t o i n f o r m y o u o f c o r r e c t
care and operating procedures.
The Operator’s Manual and Service Book-
let are important documents and should be
kept with the vehicle.
Service and warranty information
The Service and Warranty Information
Booklet contains detailed information
about the warranties covering your
Mercedes-Benz, including:

New Car Limited Warranty,


Emission System Warranty,


Emission Performance Warranty,


California, Maine, Massachusetts, and
Vermont Emission Control System
Warranty
(California, Maine, Massachusetts, and
Vermont only),


State Warranty Enforcement Laws
(Lemon Laws).

11 Introduction
Operator’s Manual
Important notice for California
retail buyers and lessees of Mercedes-Benz automobiles
Under California law you may be entitled to
a replacement of your vehicle or a refund
of the purchase price or lease price, if
Mercedes-Benz USA, LLC and / or its au-
thorized repair or service facilities fail to fix
one or more substantial defects or mal-
functions in the vehicle that are covered by
its express warranty after a reasonable
number of repair attempts. During the pe-
riod of 18 months from original delivery of
the vehicle or the accumulation of
18 000 miles (approx. 29 000 km) on the
odometer of the vehicle, whichever occurs
first, a reasonable number of repair at-
tempts is presumed for a retail buyer or
lessee if one or more of the following oc-
curs: (1) the same substantial defect or mal-
function results in a condition that is
likely to cause death or serious bodily
injury if the vehicle is driven, that de-
fect 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 mal-
function of a less serious nature than
category (1) has been subject to repair
four or more times and you have direct-
ly notified us in writing of the need for
its repair, or(3) the vehicle is out of service by reason
of repair of the same or different sub-
stantial defects or malfunctions for a
cumulative total of more than
30 calender days. Written notification
should be sent to us, not a dealer, at
Mercedes-Benz USA, LLC, Customer
Assistance Center, One Mercedes
Drive, Montvale, NJ 07645-0350.

12 IntroductionOperator’s ManualMaintenance
The Service Booklet describes all the nec-
essary maintenance work which should be
performed at regular intervals.
Always have the Service Booklet with you
when you take the vehicle to your autho-
rized Mercedes-Benz Center for service.
The service advisor will record each ser-
vice in the booklet for you.
Roadside Assistance
The Mercedes-Benz Roadside Assistance
Program provides factory-trained technical
help in the event of a breakdown. Calls to
the toll-free Roadside Assistance number
1-800-FOR-MER-Cedes (in the USA)
1-800-387-0100 (in Canada)
will be answered by Mercedes-Benz Cus-
tomer Assistance Representatives
24 hours a day, 365 days a year.
For additional information refer to the
Mercedes-Benz Roadside Assistance Pro-
gram brochure in your glove box.
Change of address or ownership
If you change your address, be sure to
send in the “Change of Address Notice”
found in the Service and Warranty Informa-
tion Booklet, or simply call the
Mercedes-Benz Customer Assistance
Center (in the USA) at
1-800-FOR-MER-Cedes, or Customer Ser-
vice (in Canada) at 1-800-387-0100. It is in
your own interest that we can contact you
should the need arise.
If you sell your Mercedes, please leave all
literature with the vehicle to make it avail-
able to the next operator.
If you bought this vehicle used, be sure to
send in the “Notice of Purchase of Used
Car” found in the Service and Warranty In-
formation Booklet, or call the
Mercedes-Benz Customer Assistance Cen-
ter (in the USA) at 1-800-FOR-MER-Cedes,
or Customer Service (in Canada) at
1-800-387-0100.

13 Introduction
Operator’s Manual
Operating your vehicle outside the USA or Canada
If you plan to operate your vehicle in for-
eign countries, please be aware that:

Service facilities or replacement parts
may not be readily available,


unleaded gasoline for vehicles with cat-
alytic converters may not be available;
the use of leaded fuels will damage the
catalysts,


gasoline may have a considerably low-
er octane rating, and improper fuel can
cause engine damage.Certain Mercedes-Benz models are avail-
able for delivery in Europe under our Euro-
pean Delivery Program. For details, consult
your authorized Mercedes-Benz Center or
write to:
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
849 Eglinton Avenue East
Toronto, Ontario M4G 2L5