2013 Mercedes-benz C Class Owners Manual

countries, please be aware that: Rservice facilities or replacement parts may

not be readily available.

Runleaded fuel for vehicles with a catalytic converter may not be available. Leaded fuel may cause damage to the catalytic converter.

Rthe 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 Important safety notes G WARNING If you do not have the prescribed service/ maintenance work or any required repairs carried out, this can result in malfunctions or system failures. There is a risk of an accident. Always have the prescribed service/ maintenance work as well as any required repairs carried out at a qualified specialist workshop. G WARNING If you switch off the ignition while driving, safety-relevant functions are only available with limitations, or not at all. This could affect, for example, the power steering and the brake boosting effect. You will require considerably more effort to steer and brake. There is a risk of an accident. Do not switch off the ignition while driving. G WARNING Modifications to electronic components, their software as well as wiring can impair their function and/or the function of other networked components. In particular, systems relevant to safety could also be affected. As a result, these may no longer function as intended and/or jeopardize the operating safety of the vehicle. There is an increased risk of an accident and injury.

Introduction

25

Never tamper with the wiring as well as electronic components or their software. You should have all work to electrical and electronic equipment carried out at a qualified specialist workshop.

! There is a risk of damage to the vehicle if: Rthe vehicle becomes stuck, e.g. on a high

curb or an unpaved road

Ryou drive too fast over an obstacle, e.g.

a curb or a hole in the road

Ra heavy object strikes the undercarriage

or parts of the chassis.

In situations like this, the body, the undercarriage, chassis parts, wheels or tires could be damaged without the damage being visible. Components damaged in this way can unexpectedly fail or, in the case of an accident, no longer withstand the strain they are designed to. If the underbody paneling is damaged, combustible materials such as leaves, grass or twigs can gather between the underbody and the underbody paneling. If these materials come in contact with hot parts of the exhaust system for an extended period, they can catch fire. Have the vehicle checked and repaired immediately at a qualified specialist workshop. If on continuing your journey you notice that driving safety is impaired, pull over and stop the vehicle immediately, paying attention to road and traffic conditions. In such cases, visit a qualified specialist workshop.

Declarations of conformity Vehicle components which receive and/or transmit radio waves USA: "The wireless devices of this vehicle comply with Part 15 of the FCC Rules. Operation is subject to the two following two conditions: 1) These devices may not cause harmful interference, and 2) These devices

must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment." Canada: "The wireless devices of this vehicle comply with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) These devices may not cause interference, and (2) These devices must accept any interference, including interference that may cause undesired operation of the device."

Diagnostics connection The diagnostics connection is only intended for the connection of diagnostic equipment at a qualified specialist workshop. G WARNING If you connect equipment to the diagnostics connection in the vehicle, it may affect the operation of the vehicle systems. As a result, the operating safety of the vehicle could be affected. There is a risk of an accident. Do not connect any equipment to a diagnostics connection in the vehicle. G WARNING Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed 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 sufficient clearance for the pedals. Do not use loose floormats.

! If the engine is switched off and

equipment on the diagnostics connection is used, the starter battery may discharge.

26

Introduction

Connecting equipment to the diagnostics connection can lead to emissions monitoring information being reset, for example. This may lead to the vehicle failing to meet the requirements of the next emissions test during the main inspection.

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 Maintenance Booklet. Always have the following work carried out at an authorized Mercedes-Benz Center: Rwork relevant to safety Rservice and maintenance work Rrepair work Ralterations, installation work and

modifications

Rwork on electronic components

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 safety defects USA only: The following text is published as required of manufacturers under Title 49, Code of U.S. Federal Regulations, Part 575 pursuant to the "National Traffic and Motor Vehicle Safety Act of 1966". 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. To contact NHTSA, you may call the Vehicle Safety Hotline toll-free at 1-888-327-4236(TTY: 1-800-424-9153); go to http://www.safercar.gov; or write to: Administrator, NHTSA, 400 Seventh Street, SW., Washington, DC 20590. You can also obtain other information about motor vehicle safety from http://www.safercar.gov

Limited Warranty ! Follow the instructions in this manual

about the proper operation of your vehicle as well as about possible vehicle damage. Damage to your vehicle that arises from culpable contraventions against these instructions is not covered either by the Mercedes-Benz Limited Warranty or by the New or Used-Vehicle Warranty.

Data stored in the vehicle Information about electronic data acquisition in the vehicle (Including notice pursuant to California Code § 9951) Your vehicle records electronic data. If your vehicle is equipped with mbrace (Canada: TELE AID), data is transmitted in the event of an accident. This information helps, for example, to test vehicle systems after an accident and to continually improve vehicle safety. Daimler AG can access this data and submit it: Rfor safety research or vehicle diagnosis

purposes

Rwith the consent of the vehicle owner Ron the instruction of prosecuting

authorities

Rfor use in arbitration of disputes that

involve Daimler AG, its affiliates or its sales and service organizations

Ras otherwise required or permitted by law. Please check your mbrace (Canada: TELE AID) purchase agreement to find out more about data that can be recorded and transmitted by this system.

Information on copyright General information Information on license for free and open- source software used in your vehicle and its electronic components is available on the following website: http://www.mercedes-benz.com/ opensource

Introduction

27

28

Dashboard ........................................... 30
Instrument cluster .............................. 31
Multifunction steering wheel ............. 33
Center console .................................... 34
Overhead control panel ...................... 37
Door control panel .............................. 38

29

30 Dashboard

Dashboard

Function

Page

Function

: Steering wheel paddle

shifters

; Cruise control lever = Instrument cluster ? Horn A DIRECT SELECT lever B PARKTRONIC warning

display

C Overhead control panel D Climate control systems E Ignition lock

Start/Stop button

160
176
31

155

193
37
130
147
147

F Adjusts the steering wheel

Steering wheel heating

G Combination switch H Parking brake I Diagnostics connection J Opens the hood K Releases the parking brake L Light switch M Night View Assist Plus

Page 106
107
119
169
25
306
169
116
204

Instrument cluster Displays

Instrument cluster

31

Function

? Coolant temperature A Fuel gauge

Page 219

Function

: Speedometer with

segments

; Multifunction display = Tachometer

Page

220
221
219

i Adjust the instrument cluster lighting

using the on-board computer (Y page 230).

32

Instrument cluster

Warning and indicator lamps

Function : ÷ ESP®

M SPORT handling mode in AMG vehicles ; · Distance warning = å ESP® OFF ? #! Turn signals A $ Brakes (USA only) B J Brakes (Canada only) C ! ABS D 6 SRS E ; Check Engine F h Tire pressure monitor

Page 269

270
275

269
119
266
266
267
272
273
276

Function

G ü Seat belt H ÷ ESP® in AMG vehicles I ? Coolant J K High-beam

headlamps

K L Low-beam

headlamps

L T Parking lamps M R This lamp has no

function

N 8 Reserve fuel

Page 265

270
273

119

118
118

273

Multifunction steering wheel

33

Multifunction steering wheel

Page 221

Function

A =;

Selects a menu 9: Selects a submenu or scrolls through lists Confirms your selection Hides display messages

226

B % Back Switches off the Voice Control System; see the separate operating instructions

Page

220

220

220
237

220

Function

: Multifunction display ; COMAND display; see the

separate operating instructions

= ?

Switches on the Voice Control System; see the separate operating instructions

? ~

Rejects or ends a call Exits phone book/redial memory Makes or accepts a call Switches to the redial memory WX Adjusts the volume Mute

34

Center console

Center console Center console, upper section

Function

Page

Function

: COMAND; see the separate

operating instructions

; c Seat heating = s Seat ventilation ? c PARKTRONIC A ¤ ECO start/stop

function (AMG vehicles)

104
105
193

150

B 45 Indicator lamp C £ Hazard warning

lamps

D u Roller sunblind in the

rear window

Page 47

120

287

Center console, lower section

Center console

35

Function

E Stowage compartment

Ashtray Cigarette lighter Socket Cup holder F Cup holder G e Sets the suspension

tuning

Page 278
287
288
289
284
284

190

Function

H É Sets the vehicle level I Stowage compartment J Ú Selects the drive

program

K COMAND controller; see

the separate operating instructions

Page 189
278

159

36

Center console

Center console, lower section (AMG vehicles)

Function E Cup holder F Engages parking position P G Selector lever H Ashtray

Cigarette lighter Socket

I COMAND controller; see

the separate operating instructions

Page 284
168
155
287
288
289

Function

J Stowage compartment K ß Calls up/saves the

suspension tuning

L à Sets the suspension

tuning

M å ESP® N Drive program selector

Page 278

191

191

70
159

Overhead control panel

Overhead control panel

37

Page

302

293

123

124

Function

: u Switches the rear interior lighting on/off

; | Switches the

automatic interior lighting control on/off

= p Switches the right- hand reading lamp on/off ? ï MB Info call button

(mbrace system)

A 3 Opens/closes the

sliding sunroof

B G SOS button (mbrace

system)

C Rear-view mirror D Buttons for the garage door

opener

Page

124

124

123

293

93

291
111

299

Function

E Integrated electronic

compass

F Microphone for mbrace (emergency call system), telephone and Voice Control System; see the separate operating instructions

G F Roadside Assistance

call button (mbrace system)

H p Switches the left-

hand reading lamp on/off I c Switches the front

interior lighting on/off

38 Door control panel

Door control panel

Function

Page

Function

: r45=

Stores settings for the seat, exterior mirrors and steering wheel

; Adjusts the seats

electrically

= %& Unlocks/locks

the vehicle

? Opens the door

A 7Zö\ Adjusts and folds the exterior mirrors in/out electrically

112

100

83
82

109

B W Opens/closes the

side windows

C n Activates/

deactivates the override feature for the side windows in the rear compartment

D p Opens/closes the

trunk lid

Page

89

65

86

Useful information .............................. 40
Panic alarm .......................................... 40
Occupant safety .................................. 40
Children in the vehicle ........................ 60
Driving safety systems ....................... 66
Theft deterrent locking system ......... 73

39

40 Occupant safety

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 26).

Panic alarm

X To activate: press ! button : for at

least one second. An alarm sounds and the exterior lighting flashes.

X To deactivate: press ! button :

again.

or X Insert the SmartKey into the ignition lock. or X Press the KEYLESS-GO Start/Stop button.

The KEYLESS-GO key must be in the vehicle.

Occupant safety Important safety notes G WARNING Modifications to the restraint systems could result in them not functioning properly any more. The restraint systems could then no longer protect vehicle occupants as they are designed to do and could fail in the event of an accident or activate unexpectedly, for example. There is an increased risk of injury. Never modify parts of the restraint systems. Do not attempt to modify the wiring as well as electronic components or their software. If it is necessary to modify an air bag system to accommodate a person with disabilities, contact an authorized Mercedes-Benz center. USA only: for further information contact our Customer Assistance Center at 1-800-FOR-MERCedes (1800-367-6372).

In this section, you will learn the most important facts about the restraint system components of the vehicle. The restraint system consists of: RSeat belts RChild restraint systems RLATCH-type (ISOFIX) child seat securing

system

Additional protection is provided by: RSRS (Supplemental Restraint System) RNECK-PRO head restraints/NECK-PRO

luxury head restraints

RPRE-SAFE® RAir bag system components with:

- PASSENGER AIR BAG OFF indicator lamp - Front-passenger seat with Occupant

Classification System (OCS)

The different air bag systems work independently of each other. The protective functions of the system work in conjunction with each other. Not all air bags are deployed in an accident.

i For information on infants and children traveling with you in the vehicle as well as restraint systems for infants and children, see "Children in the vehicle" (Y page 60).

SRS (Supplemental Restraint System) Introduction RS consists of: RThe 6 RS warning lamp RAir bags RThe air bag control unit with crash sensors REmergency Tensioning Device for the front

seat belts and the outer seat belts in the rear

RSeat belt force limiters for the front seat belts and the outer seat belts in the rear

RS reduces the risk of occupants coming into contact with the vehicle's interior in the event of an accident. It can also reduce the effect of the forces to which occupants are subjected during an accident.

SRS warning lamp G WARNING If SRS is malfunctioning, child restraint system components may be triggered unintentionally or might not be triggered at all in the event of an accident with a high rate of vehicle deceleration. There is an increased risk of injury, possibly even fatal. Have SRS checked and repaired immediately at a qualified specialist workshop.

SRS functions are checked regularly when you switch on the ignition and when the engine is running. Therefore, malfunctions can be detected in good time. The 6 SRS warning lamp in the instrument cluster lights up when the ignition is switched on. It goes out no later than a few seconds after the engine is started.

Occupant safety

41

The SRS components are in operational readiness when the 6 SRS indicator lamp goes out while the engine is running. There is a malfunction if: Rthe 6 SRS warning lamp does not light

up when the ignition is switched on

Rthe engine is running and the 6 SRS warning lamp does not go out after a few seconds

Rthe engine is running and the 6 SRS

warning lamp lights up again.

Safety guidelines for seat belts, Emergency Tensioning Devices (ETDs) and air bags G WARNING RDamaged seat belts or seat belts that have been subjected to stress in an accident must be replaced. Their anchoring points must also be checked. Only use seat belts installed or supplied by an authorized Mercedes-Benz Center.

RAir bags and pyrotechnic Emergency

Tensioning Devices (ETDs) contain perchlorate material, which may require special handling and regard for the environment. Check your national disposal guidelines. California residents, see www.dtsc.ca.gov/HazardousWaste/ Perchlorate/index.cfm.

RAir bags and ETDs are designed to function on a one-time-only basis. An air bag or ETD that has deployed must be replaced. PRE- SAFE® has electrically operated reversible belt tensioners in addition to the pyrotechnic ETDs.

RDo not pass seat belts over sharp edges.

They could tear.

RDo not make any modification that could

change the effectiveness of the seat belts. RDo not bleach or dye seat belts as this may severely weaken them. In a crash they may not be able to provide adequate protection.

42 Occupant safety

RNo modifications of any kind may be made

to any components or wiring of the SRS. RDo not change or remove any component

or part of the SRS.

RDo not install additional trim material, seat

covers, badges, etc. to the: - padded steering wheel boss - knee bag covers - outer side of front seat bolsters - side trim next to the rear seat backrest

front-passenger air bag cover

roof lining trim

RDo not install additional electrical/

electronic equipment on or near SRS components and wiring.

RKeep area between air bags and occupants

free of objects (e.g. packages, purses, umbrellas, etc.).

RDo not hang items such as coat hangers from the coat hooks or handles over the door. These items may be thrown around in the vehicle and cause head and other injuries when the window curtain air bag is deployed.

RAir bag system components will be hot after an air bag has inflated. Do not touch them.

RNever place your feet on the instrument panel, dashboard, or on the seat. Always keep both feet on the floor in front of the seat.

RImproper repair work on the SRS creates a

risk of rendering the SRS inoperative or causing unintended air bag deployment. Work on the SRS must therefore only be performed by qualified technicians. Contact an authorized Mercedes-Benz Center.

RFor your protection and the protection of others, when scrapping the air bag unit or ETD, our safety instructions must be followed. These instructions are available

from any authorized Mercedes-Benz Center.

RGiven the considerable deployment speed, required inflation volume, and the material of the air bags, there is the possibility of abrasions or other, potentially more serious injuries resulting from air bag deployment.

If you sell your vehicle, Mercedes-Benz strongly recommends that you inform the subsequent owner that the vehicle is equipped with SRS. Also, refer them to the applicable section in the Operator's Manual.

Air bags Important safety notes G WARNING If you modify the air bag covers or affix objects such as stickers to them, the air bags may not function correctly. There is an increased risk of injury. Never modify the air bag covers or affix objects to them. G WARNING Using unsuitable seat covers could restrict or even prevent deployment of the air bags integrated into the seats. Consequently, the air bags cannot protect vehicle occupants as they are designed to do. In addition, the function of the air bag deactivation system could be restricted. This poses an increased risk of injury or even fatal injury. You should only use seat covers that have been approved for the respective seat by Mercedes-Benz. G WARNING The air bag parts are hot after the airbag has been deployed. There is a risk of injury. Do not touch the air bag parts. Have the deployed air bags replaced at a qualified specialist workshop as soon as possible.

G WARNING Air bags are designed to reduce the incidence of injuries and fatalities in certain situations: Rfrontal impacts (driver's and front-

passenger front air bags and knee bags)

Rside impacts (side impact air bags, window

curtain air bags and pelvis air bags)

Rrollover (window curtain air bags) However, no system available today can completely eliminate injuries and fatalities. When the air bags are deployed, a small amount of powder is released. The powder generally does not constitute a health hazard and does not indicate that there is a fire in the vehicle. In order to prevent potential breathing difficulties, you should leave the vehicle as soon as it is safe to do so. If you have any breathing difficulty but cannot get out of the vehicle after the air bag inflates, then get fresh air by opening a window or door. G WARNING In order to reduce the potential danger of injuries caused during the deployment of the front air bags, the driver and front passenger must always be correctly seated and wear their seat belts. For maximum protection in the event of a collision, you must always be in the normal seat position with your back against the backrest. Fasten your seat belt and make sure that it is correctly positioned on your body.

Occupant safety

43

As the air bag inflates with considerable speed and force, a proper seating position and correct positioning of the hands on the steering wheel will help to keep you at a safe distance from the air bag. Occupants who are not wearing their seat belt, are not seated properly or are too close to the air bag can be seriously injured or killed by an air bag, as it inflates with great force instantaneously: Rsit with the seat belt fastened correctly and in a position that is as upright as possible with your back against the backrest. Rmove the driver's seat as far back as

possible, still permitting proper operation of vehicle controls. The distance from the center of the driver's chest to the center of the air bag cover on the steering wheel must be at least 10 inches (25 cm). You should be able to accomplish this by adjusting the seat and steering wheel. If you have any difficulties, please contact an authorized Mercedes-Benz Center.

Rdo not lean your head or chest close to the

steering wheel or dashboard.

Ronly hold the steering wheel on the outside. Placing hands and arms inside the rim can increase the risk and potential severity of hand/arm injury if the driver front air bag inflates.

Radjust the front-passenger seat as far back as possible from the dashboard when the seat is occupied.

Roccupants, especially children, should

never place their bodies or lean their heads in the area of the door where the side impact air bag inflates. This could result in serious or fatal injuries should the side impact air bag be deployed. Always sit as upright as possible, wear the seat belt properly and use an appropriately sized infant restraint, toddler restraint or booster seat recommended for the size and weight of the child.

Failure to follow these instructions can result in severe injuries to you or other occupants.

44 Occupant safety

If you sell your vehicle, it is important that you make the buyer aware of this safety information. Be sure to give the buyer this Operator's Manual.

If the air bags are deployed, you will hear a bang, and a small amount of powder may also be released. Only in rare cases will the bang affect your hearing. The powder that is released generally does not constitute a health hazard and does not indicate that there is a fire in the vehicle. The dust might cause some temporary breathing difficulty for people with asthma or other breathing trouble. To avoid this, you may wish to get out of the vehicle as soon as it is safe to do so. You can also open the window to allow fresh air to enter the vehicle interior. The 6 SRS warning lamp lights up. The air bag installation locations are identified by the AIR BAG symbol. The air bags are deployed if the air bag control unit detects the need for deployment. Only in the event of such a situation will the air bags provide their supplemental protection. If the driver and front passenger do not wear their seat belts, it is not possible for the air bags to provide their supplemental protection. In the event of other types of impacts and impacts below air bag deployment thresholds, the air bags will not deploy. The driver and passenger will then be protected to the extent possible by a properly fastened seat belt. A properly fastened seat belt is also needed to provide the best possible protection in a rollover. Air bags provide additional protection; they are not, however, a substitute for seat belts. All vehicle occupants must fasten their seat belts regardless of whether your vehicle is equipped with air bags or not. It is important for your safety and that of your passenger to have deployed air bags replaced and to have any malfunctioning air bags repaired. This will help to make sure the air bags continue to perform their protective

function for the vehicle occupants in the event of a crash. i After an air bag has been deployed, have the vehicle towed to the nearest qualified specialist workshop, even if your vehicle is ready to drive.

Front air bags

Driver's air bag : deploys in front of the steering wheel; front-passenger front air bag ; deploys in front of and above the glove box. The front air bags increase protection for the driver's and front passenger's head and chest. They are deployed: Rat the start of an accident with a high rate of vehicle acceleration or deceleration in a longitudinal direction

Rin the event of certain frontal impacts Rif the system determines that air bag

deployment can offer additional protection to that provided by the seat belt

Rdepending on whether the seat belt is being

used

Rindependently of other air bags in the

vehicle

If the vehicle rolls over, the front air bags are generally not deployed. Your vehicle has adaptive, two-stage front air bags. The air bag control unit evaluates vehicle deceleration or acceleration in the event of a collision. In the first deployment stage, the front air bag is filled with part of the

total available propellant gas, thereby reducing the risk of injury. If the air bag control unit recognizes within a few milliseconds that the vehicle is being braked or accelerated faster than originally predicted, the front air bag is filled with the maximum amount of propellant gas available. The deployment of the front-passenger front air bag is also influenced by the weight category of the front passenger, which is determined by the Occupant Classification System (OCS) (Y page 47). The lighter the passenger-side occupant, the higher the vehicle deceleration rate required (predicted at the start of the impact) for second-stage inflation of the front-passenger front air bag. In the second stage, the front air bags are inflated with the maximum amount of propellant gas available. The front air bags are not deployed in situations where a low impact severity is predicted. You will then be protected by the fastened seat belt. The front-passenger front air bag will only deploy if: Rthe system, based on the OCS weight sensor readings, detects that the front- passenger seat is occupied

Rthe PASSENGER AIR BAG OFF indicator

lamp on the center console is not lit (Y page 47)

Rthe air bag control unit predicts a high

impact severity

Knee bags

Occupant safety

45

Driver's knee bag : deploys underneath the steering column and front-passenger knee bag ; underneath the glove box. They deploy together with the front air bags. They are designed to operate together with the front air bags in frontal impacts if certain thresholds are exceeded. The knee bags operate at best in conjunction with correctly positioned and fastened seat belts. Knee bags provide increased protection for the driver and front passenger against the risk of: Rknee injuries Rthigh injuries Rlower leg injuries

Side impact air bags G WARNING Using unsuitable seat covers could restrict or even prevent deployment of the air bags integrated into the seats. Consequently, the air bags cannot protect vehicle occupants as they are designed to do. In addition, the function of the air bag deactivation system could be restricted. This poses an increased risk of injury or even fatal injury. You should only use seat covers that have been approved for the respective seat by Mercedes-Benz. G WARNING Sensors to control the air bags are located in the doors. Modifications or work not performed correctly to the doors or door paneling, as well as damaged doors, can lead to the function of the sensors being impaired. The air bags might therefore not function properly any more. Consequently, the air bags cannot protect vehicle occupants as they are designed to do. There is an increased risk of injury. Never modify the doors or parts of the doors. Always have work on the doors or door paneling carried out at a qualified specialist workshop.

46 Occupant safety

You should only use seat cover that have been approved for your vehicle by Mercedes-Benz. The seat covers must have a special tear seam for side impact air bags. Otherwise, the side impact air bags cannot deploy correctly and therefore cannot provide the intended protection in the event of an accident.

Front side impact air bags : and rear side impact air bags ; deploy next to the outer seat cushions. When deployed, the side impact air bags offer additional protection for the thorax of the vehicle occupants on the side of the vehicle on which the impact occurs. However, they do not protect the: Rhead Rneck Rarms The side impact air bags are deployed: Ron the side on which an impact occurs Rat the start of an accident with a high rate

of lateral vehicle deceleration or acceleration, e.g. in a side impact

Rindependently of the use of the seat belt Rindependently of the front air bags Rindependently of the ETDs If the vehicle rolls over, the side impact air bags are generally not deployed. Side impact air bags are deployed if the system detects high vehicle deceleration or acceleration in a lateral direction and determines that side impact air bag deployment can offer additional protection to that provided by the seat belt.

Side impact air bags will not deploy in side impacts which do not exceed the system's preset deployment thresholds for lateral acceleration/deceleration. You will then be protected by the fastened seat belt. The side impact air bag on the front- passenger side is not deployed in the following situations: ROCS has detected that the front-passenger

seat is unoccupied.

Rthe front-passenger seat belt is not

fastened.

The side impact air bag on the front- passenger side will deploy if the front- passenger seat belt is fastened, regardless of whether the front-passenger seat is occupied or not.

Pelvis air bags G WARNING Only use seat covers which have been tested and approved by Mercedes-Benz for your vehicle model. Using seat covers or other seat coverings can cause a malfunction of the side impact air bags and/or the pelvis air bags. Contact an authorized Mercedes-Benz Center for availability.

Pelvis air bags : enhance the level of protection of the vehicle occupants on the side of the vehicle on which the impact occurs.

The pelvis air bags deploy next to and below the outer seat cushions. They are deployed: Ron the side on which an impact occurs Rat the start of an accident with a high rate

of lateral vehicle deceleration or acceleration, e.g. in a side impact

Rindependently of the use of the seat belt Rindependently of the front air bags Rindependently of the ETDs If the vehicle rolls over, the pelvis air bags are generally not deployed. Exception: if the system detects high vehicle deceleration or acceleration in a lateral direction and determines that deployment can offer additional protection to that provided by the seat belt. Pelvis air bags : will not deploy in side impacts which do not exceed the system's preset deployment thresholds for lateral acceleration/deceleration. You will then be protected by the fastened seat belt. The pelvis air bag on the front-passenger side is not deployed in the following situations: ROCS has detected that the front-passenger

seat is unoccupied.

Rthe front-passenger seat belt is not

fastened.

The pelvis air bag on the front-passenger side will deploy if the front-passenger seat belt is fastened, regardless of whether the front- passenger seat is occupied or not.

Window curtain air bags

Occupant safety

47

Window curtain air bags : enhance the level of protection for the head, but not chest or arms, of the vehicle occupants on the side of the vehicle on which the impact occurs. The window curtain air bags are integrated into the side of the roof frame and deploy in the area from the A-pillar to the C-pillar. Window curtain air bags are deployed: Rat the start of an accident with a high rate

of lateral vehicle deceleration or acceleration, e.g. in a side impact

Ron the side on which an impact occurs Ron the driver's side and passenger side, in

the event of a vehicle rollover and if the system determines that air bag deployment can offer the vehicle occupants additional protection to that provided by the seat belt

Rindependently of the use of the seat belt Rregardless of whether the front-passenger

seat is occupied

Rindependently of the front air bags Window curtain air bags : will not deploy in the event of impacts which do not exceed the system's preset deployment thresholds for vehicle acceleration/deceleration. You will then be protected by the fastened seat belt.

Occupant Classification System (OCS) Method of operation G WARNING If the 45 indicator lamp illuminates when an adult or someone larger than a small individual is in the front-passenger seat, have the front passenger reposition himself or herself in the seat until the 45
indicator lamp goes out. In the event of a collision, the air bag control unit will not allow front-passenger front air bag deployment when the OCS has classified the front-passenger seat occupant as weighing as much as or less than a typical 12- month-old child in a standard child restraint

48 Occupant safety

or if the front-passenger seat is classified as being empty. When the OCS senses that the front- passenger seat occupant is classified as being up to or less than the weight of a typical 12-month-old child in a standard child restraint, the 45 indicator lamp will illuminate when the engine is started and remain illuminated, indicating that the front- passenger front air bag is deactivated. When the OCS senses that the front- passenger seat is classified as being empty, the 45 indicator lamp will illuminate when the engine is started and remain illuminated, indicating that the front- passenger front air bag is deactivated. When the OCS senses that the front- passenger seat occupant is classified as being heavier than the weight of a typical 12- month-old child seated in a standard child restraint or as being a small individual (such as a young teenager or a small adult), the 45 indicator lamp will illuminate for approximately 6 seconds when the engine is started and then, depending on occupant weight sensor readings from the front- passenger seat, remain illuminated or go out. With the 45 indicator lamp illuminated, the front-passenger front air bag is deactivated. With the 45 indicator lamp out, the front-passenger front air bag is activated. When the OCS senses that the front- passenger seat occupant is classified as an adult or someone larger than a small individual, the 45 indicator lamp will illuminate for approximately 6 seconds when the engine is started and then go out, indicating that the front-passenger front air bag is activated. If the 45 indicator lamp is illuminated, the front-passenger front air bag and the front-passenger knee bag are deactivated and will not be deployed.

If the 45 indicator lamp is not illuminated, the front-passenger front air bag and the front-passenger knee bag are activated and will be deployed: Rin the event of certain frontal impacts Rif impact exceeds a preset deployment

threshold

Rindependently of the side impact air bag or

pelvis air bag

If the front-passenger front air bag is deployed, the rate of inflation will be influenced by: Rthe rate of relevant vehicle deceleration as

assessed by the air bag control unit

Rthe front passenger's weight category as

identified by OCS G WARNING According to accident statistics, children are safer when properly restrained on the rear seats than on the front-passenger seat. Thus, we strongly recommend that children be placed in the rear seats whenever possible. Regardless of seating position, children 12
years old and under must be seated and properly secured in an appropriate infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. The infant or child restraint must be properly secured with the vehicle's seat belt, the seat belt and Top Tether strap, or lower LATCH- type (ISOFIX) child seat retaining loops and Top Tether strap, fully in accordance with the infant or child seat manufacturer's instructions. Occupants, especially children, should always sit as upright as possible, wear the seat belt properly and use an appropriately sized infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. Children can be killed or seriously injured by an inflating air bag.

Note the following important information if it is necessary to carry a child on the front- passenger seat: RYour vehicle is equipped with air bag technology designed to deactivate the front-passenger front air bag and the front- passenger knee bag in your vehicle when the system senses the weight of a typical 12-month-old child or less along with the weight of a standard appropriate child restraint on the front-passenger seat.

RA child in a rear-facing child restraint on the

front-passenger seat will be seriously injured or even killed if the front-passenger front air bag inflates in a collision which could occur under some circumstances, even with the air bag technology installed in your vehicle. The only means to eliminate this risk completely is never to place a child in a rear-facing child restraint in the front- passenger seat. We therefore strongly recommend that you always place a child in a rear-facing child restraint on the rear seat.

RIf you install a rear-facing child restraint on

the front-passenger seat, make sure the 45 indicator lamp is illuminated, indicating that the front-passenger front air bag and front-passenger knee bag are deactivated. Should the 45
indicator lamp not illuminate or go out while the restraint is installed, please check installation. Periodically check the 45 indicator lamp while driving to make sure that the 45 indicator lamp is illuminated. If the 45
indicator lamp goes out or remains out, do not transport a child on the front-passenger seat until the system has been repaired. A child in a rear-facing child restraint on the front-passenger seat could be seriously injured or even killed if the front-passenger front air bag is deployed.

Occupant safety

49

RIf you place a child in a forward-facing child

restraint on the front-passenger seat: - move the seat as far back as possible - use the proper child restraint

recommended for the age, size and weight of the child

- secure child restraint with the vehicle's

seat belt according to the child seat manufacturer's instructions

RFor children larger than the typical 12-

month-old child, the front-passenger front air bag and the front-passenger knee bag may or may not be activated. G WARNING If the red 6 SRS warning lamp in the instrument cluster and the 45
indicator lamp light up simultaneously, the OCS is malfunctioning. The front passenger front air bag and the front passenger knee bag will be deactivated in this case. Have the system checked by qualified technicians as soon as possible. Contact an authorized Mercedes-Benz Center. Only have the seat repaired or replaced at an authorized Mercedes-Benz Center. In order to ensure proper operation of the air bag system and OCS: RSit with the seat belt properly fastened in a position that is as upright as possible with your back against the seat backrest. RWhen seated, a passenger should not

position him/herself in such a way as to cause the passenger's weight to be lifted from the seat cushion as this may result in the OCS being unable to correctly approximate the passenger's weight category.

RRead and observe all warnings in this

chapter.

50 Occupant safety

If the SmartKey is removed from the ignition lock or is in position 0, PASSENGER AIR BAG OFF indicator lamp : does not light up. The Occupant Classification System (OCS) categorizes the occupant on the front- passenger seat using a weight sensor. The front-passenger front air bag is deactivated automatically for certain weight categories. The PASSENGER AIR BAG OFF indicator lamp shows you the current status. Occupant Classification System (OCS) categories the occupant on the front- passenger seat using a weight sensor. The front-passenger front air bag and the front-passenger knee bag are deactivated automatically for certain weight categories. The PASSENGER AIR BAG OFF indicator lamp shows you the current status. If the PASSENGER AIR BAG OFF indicator lamp lights up, the front-passenger front air bag and the front-passenger knee bag are disabled. The system does not deactivate: Rthe side impact air bag Rthe pelvis air bag Rthe window curtain air bag Rthe Emergency Tensioning Devices To be classified correctly, the front passenger must sit: Rwith the seat belt fastened correctly Rin a position that is as upright as possible with their back against the seat backrest

Rwith their feet on the floor

The OCS weight sensor reading is affected if the occupant's weight is transferred, e.g. by leaning on the armrest. If the front-passenger seat, the seat cover or the seat cushion are damaged, have the necessary repair work carried out at a qualified specialist workshop. For safety reasons, Mercedes-Benz recommends that you only use seat accessories that have been approved by Mercedes-Benz. Both the driver and the front passenger should always observe the PASSENGER AIR BAG OFF indicator lamp as an indication of whether or not the front passenger is positioned correctly. Observe also the air bag display messages that can be displayed in the instrument cluster (Y page 244). If the driver's air bag deploys, this does not mean that the front-passenger front air bag will also deploy. The OCS may have detected that the seat: Ris empty or occupied by the weight of a

typical child up to twelve months old, seated in a child restraint system

Ris occupied by a small individual, such as a

young teenager or a small adult

Ris occupied by a child in a child restraint system whose weight is greater than that of a typical twelve month old child. These are examples of when the OCS deactivates the front-passenger front air bag and front-passenger knee bag. Deactivation takes place although the collision fulfills the criteria for deploying the driver's air bag. For further information, see "Air bag display messages" (Y page 244).

System self-test G WARNING If the 4 5 indicator lamp does not illuminate, the system is not functioning. You must contact an authorized Mercedes-Benz

Center before seating any child on the front passenger seat. G WARNING Objects between the seat surface and the child restraint system could affect the function of the OCS. This could result in the front-passenger front air bag not functioning as intended during an accident. This poses an increased risk of injury or even fatal injury. Do not place any objects between the seat surface and the child restraint system. Make sure that the bottom and back of the child restraint system make full contact with the front-passenger seat cushion and backrest. Always comply with the child restraint system manufacturer's installation instructions.

The PASSENGER AIR BAG OFF indicator lamp lights up: Rif you turn the SmartKey in the ignition lock

to position 1 or 2

Rif you press the KEYLESS-GO Start/Stop

button once or twice on vehicles with KEYLESS-GO

Rif an adult is seated properly on the front- passenger seat and the OCS classifies the occupant as an adult The PASSENGER AIR BAG OFF indicator lamp goes out again after approximately six seconds. If the seat is not occupied and the OCS system detects that the front-passenger seat is empty, the PASSENGER AIR BAG OFF indicator lamp will continue to light up. The PASSENGER AIR BAG OFF indicator lamp will not go out.

For more information about the OCS, see "Problems with the Occupant Classification System" (Y page 52).

Occupant safety

51

52 Occupant safety

Problems with the Occupant Classification System G WARNING If the 45 indicator lamp illuminates and remains illuminated when the weight of a typical adult or someone larger than a small individual has been detected on the passenger seat, do not allow any occupant to use the passenger seat until the system has been repaired. G WARNING If the 45 indicator lamp does not illuminate or remains out with the weight of a typical 12-month-old child in a standard child restraint or less, or is unoccupied, on the front-passenger seat, do not transport a child on the front-passenger seat until the system has been repaired.

Possible causes/consequences and M Solutions The COS is malfunctioning. X Make sure that the front passenger is sitting in a correct, upright

position.

X Have the COS checked as soon as possible at a qualified

specialist workshop.

X Observe the additional display messages in the multifunction

display (Y page 244).

Problem The PASSENGER AIR BAG OFF indicator lights up and remains on. The person on the front-passenger seat: Rhas the weight of a

typical adult

Rhas been determined by the system not to be a child

Problem The PASSENGER AIR BAG OFF indicator lamp does not light up and/or does not stay on. The front-passenger seat is: Runoccupied Roccupied with the

weight of a child up to twelve months old in a child restraint system

Occupant safety

53

Possible causes/consequences and M Solutions The COS is malfunctioning. X Make sure there is nothing between the seat cushion and the

child seat.

X Make sure that the backrest and base of the child restraint

system rest on the front-passenger seat. If necessary, adjust the position of the front-passenger seat.

X When installing the child restraint system, make sure that the seat belt is tight. Do not pull the seat belt tight with the front- passenger seat adjustment. This could result in the seat belt being pulled too tightly.

X Check the installation of the child restraint system. X Make sure that no objects are applying additional weight onto

the seat.

X If the PASSENGER AIR BAG OFF indicator lamp remains off, have

the COS checked immediately at a qualified specialist workshop. Do not transport a child on the front-passenger seat until the COS has been repaired.

X Observe the additional display messages in the multifunction

display (Y page 244).

NECK-PRO head restraints/NECK- PRO luxury head restraints Important safety notes G WARNING The function of the head restraint may be impaired if you: Rattach objects such as coat hangers to the

head restraints, for example

Ruse head restraint covers If you do so, the head restraints cannot fulfill their intended protective function in the event of an accident. In addition, objects attached to the head restraints could endanger other vehicle occupants. There is an increased risk of injury. Do not attach any objects to the head restraints and do not use head restraint covers.

NECK-PRO head restraints/NECK-PRO luxury head restraints increase protection of the

driver's and front-passenger's head and neck. In the event of a rear collision of a certain severity, the NECK-PRO head restraints/NECK-PRO luxury head restraints on the driver's and the front-passenger seats are moved forwards and upwards. This provides better head support. If the NECK-PRO head restraints/NECK-PRO luxury head restraints have been triggered in an accident, reset the NECK-PRO head restraints/NECK-PRO luxury head restraints on the driver's and front-passenger seats (Y page 54). Otherwise, the additional protection will not be available in the event of another rear-end collision. NECK-PRO head restraints/NECK-PRO luxury head restraints that have been triggered are moved forwards and can no longer be adjusted. Mercedes-Benz recommends that you have the NECK-PRO head restraints/NECK-PRO luxury head restraints checked at a qualified specialist workshop after a rear-end collision.

54 Occupant safety

Resetting triggered NECK-PRO head restraints/NECK-PRO luxury head restraints NECK-PRO head restraints

NECK-PRO head restraints X Tilt the top of the NECK-PRO head restraint

cushion forwards in the direction of arrow :.

X Push the NECK-PRO head restraint cushion down in the direction of arrow ; as far as it will go.

X With your hand flat, firmly push the NECK- PRO head restraint cushion backwards in the direction of arrow = until it engages.

X Repeat this procedure for the second

NECK-PRO head restraint.

NECK-PRO luxury head restraints

NECK-PRO luxury head restraints X Remove resetting tool : from the vehicle

document wallet.

X Slide resetting tool : into guide ; between the NECK-PRO luxury head

restraint and the rear cover of the head restraint.

X Push resetting tool : downwards until you

hear the head restraint deployment mechanism engage.

X Pull out resetting tool :. X With your hand flat, firmly push the NECK-

PRO luxury head restraint cushion backwards in the direction of arrow = until it engages.

X Repeat this procedure for the second

NECK-PRO luxury head restraint.

X Put resetting tool : back into the vehicle

document wallet.

i If you have difficulty resetting the NECK- PRO luxury head restraints, have this work carried out at a qualified specialist workshop.

PRE-SAFE® (anticipatory occupant protection system) ! Make sure that there are no objects in the footwell or behind the seats when resetting the seats. There is a risk that the seats and/or the objects could be damaged. PRE-SAFE® takes preemptive measures to protect occupants in certain hazardous situations. Despite your vehicle being equipped with the PRE-SAFE® system, the possibility of personal injuries occurring as a result of an accident cannot be eliminated. Always adapt your driving style to suit the prevailing road and weather conditions and maintain a safe distance from the vehicle in front. Drive carefully. PRE-SAFE® intervenes: Rif BAS intervenes, e.g. in emergency

braking situations.

Rif BAS PLUS intervenes powerfully — on

vehicles with DISTRONIC PLUS.

Rif, on vehicles with DISTRONIC PLUS, the radar sensor system detects an imminent danger of collision in certain situations. Rin critical driving situations, e.g. when physical limits are exceeded and the vehicle understeers or oversteers severely.

PRE-SAFE® takes the following measures depending on the hazardous situation detected: Rthe front seat belts are pre-tensioned. Rthe front-passenger seat is adjusted if it is

in an unfavorable position.

Rvehicles with a multicontour seat or active multicontour seat: the air pressure in the side bolsters of the seat cushion and backrest is increased.

Rif the vehicle skids, the sliding sunroof and the side windows are closed so that only a small gap remains.

If the hazardous situation passes without resulting in an accident, PRE-SAFE® slackens the belt pre-tensioning. The air pressure in the side bolsters on the multicontour seat/ active multicontour seat is reduced again. All settings made by PRE-SAFE® can then be reversed. If the seat belts are not released: X When the vehicle is stationary, move the

backrest or seat back slightly. The seat belt pre-tensioning is reduced and the locking mechanism is released.

Information about seat belt adjustment, a convenience function integrated into PRE- SAFE®, can be found in the "Seat belt adjustment" section (Y page 57).

Seat belts Important safety notes G WARNING The seat belt does not offer the intended level of protection if the backrest is not in the upright position. When braking or in the event

Occupant safety

55

of an accident, you could slide underneath the seat belt and sustain abdomen or neck injuries, for example. This poses an increased risk of injury or even fatal injury. Adjust the seat properly before beginning your journey. Always make sure that the seat is in the upright position. G WARNING Seat belts cannot protect as intended, if: Rthey are damaged, extremely dirty,

bleached or dyed

Rthe seat belt buckle is damaged or

extremely dirty

Rthe Emergency Tensioning Devices or the