2012 Mercedes-benz CL Class Owners Manual

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Temperature Coolant .......................................... 330 Coolant (on-board computer) ......... 337 Engine oil (on-board computer) ...... 337 Outside temperature ...................... 331 Setting (climate control) ................ 259 Setting (COMAND) ......................... 235 Theft deterrent locking system Immobilizer ...................................... 68 Tilt/sliding sunroof see Sliding sunroof Setting summer/standard time ..... 129 Setting the format ......................... 128 Setting the time ............................. 128 Setting the time/date format ........ 128 Setting the time zone ..................... 129 Timing (RACETIMER) ......................... 338 Tiredness assistant see ATTENTION ASSIST Tire pressure Calling up (on-board computer) ..... 449 Checking manually ........................ 449 Display message ............................ 372 Maximum ....................................... 448 Notes ............................................. 447 Recommended ............................... 445 Tire pressure monitoring system Function/notes ............................. 449 Restarting ...................................... 451 Warning lamp ................................. 385 Tires Aspect ratio (definition) ................. 464 Average weight of the vehicle occupants (definition) .................... 463 Bar (definition) ............................... 462 Characteristics .............................. 462 Checking ........................................ 443 Definition of terms ......................... 462 Direction of rotation ...................... 466 Display message ............................ 372 Distribution of the vehicle occupants (definition) .................... 465 DOT, Tire Identification Number (TIN) ............................................... 461 DOT (Department of Transportation) (definition) ............ 462 Television Index 23 GAWR (Gross Axle Weight Rating) (definition) ..................................... 463 GVW (Gross Vehicle Weight) (definition) ..................................... 463 GVWR (Gross Vehicle Weight Rating) (definition) ......................... 463 Important safety notes .................. 442 Increased vehicle weight due to optional equipment (definition) ...... 463 Kilopascal (kPa) (definition) ........... 464 Labeling (overview) ........................ 458 Load bearing index (definition) ...... 465 Load index ..................................... 461 Load index (definition) ................... 464 Maximum loaded vehicle weight (definition) ..................................... 463 Maximum load on a tire (definition) ..................................... 464 Maximum permissible tire pressure (definition) ....................... 464 Maximum tire load ......................... 456 Maximum tire load (definition) ....... 464 Optional equipment weight (definition) ..................................... 464 PSI (pounds per square inch) (definition) ..................................... 464 Replacing ....................................... 465 Service life ..................................... 443 Sidewall (definition) ....................... 464 Speed rating (definition) ................ 463 Storing ........................................... 466 Structure and characteristics (definition) ..................................... 462 Temperature .................................. 458 TIN (Tire Identification Number) (definition) ..................................... 465 Tire bead (definition) ...................... 464 Tire pressure (definition) ................ 464 Tire pressures (recommended) ...... 463 Tire size (data) ............................... 466 Tire size designation, load-bearing capacity, speed rating .................... 459 Tire tread ....................................... 443 Tire tread (definition) ..................... 464 Total load limit (definition) ............. 465 Traction ......................................... 457 Traction (definition) ....................... 465 Tread wear ..................................... 457 Uniform Tire Quality Grading Standards ...................................... 457 Uniform Tire Quality Grading Standards (definition) .................... 463 Unladen weight (definition) ............ 464 Wear indicator (definition) ............. 465 Wheel rim (definition) .................... 463 see Flat tire Tonal properties see Sound settings Top Tether ............................................ 59 Towing Important safety guidelines ........... 435 Installing the towing eye ................ 435 Removing the towing eye ............... 436 With the rear axle raised ................ 436 Towing away Tow-starting Track With both axles on the ground ....... 436 Emergency engine starting ............ 437 Important safety notes .................. 435 Selecting (CD, DVD, MP3) .............. 208 Traffic Announcements (TA) Switching off .................................. 124 Traffic jam function ........................... 155 Traffic jam message see Dynamic route guidance/TMC Traffic reports Real-time traffic report .................. 161 Switching on/off ........................... 158 Transmission see Automatic transmission Transporting the vehicle .................. 437 Treble, adjusting (sound) .................. 125 Trim pieces (cleaning instructions) . 420 Trip computer (on-board computer) .......................................... 334 Trip meter see Trip odometer Trip odometer Calling up ....................................... 334 Resetting (on-board computer) ...... 335 Trunk Emergency release .......................... 85 Important safety guidelines ............. 82 Limiting the opening angle ............. 235 24 Index TV Locking separately ........................... 85 Opening/closing (automatically from inside) ...................................... 84 Opening/closing (automatically from outside) ................................... 83 Trunk lid Display message ............................ 375 Opening/closing .............................. 82 Power closing feature ...................... 81 Trunk lid opening height restriction .......................................... 235 Turn signals Display message ............................ 359 Switching on/off ........................... 246 Automatic picture shutoff .............. 224 Picture settings .............................. 224 Type identification plate see Vehicle identification plate Unlocking Emergency unlocking ....................... 81 From inside the vehicle (central unlocking button) ............................. 80 see Media Interface USB Vanity mirror (in sun visor) .............. 392 Vehicle Correct use ...................................... 29 Data acquisition ............................... 30 Display message ............................ 374 Equipment ....................................... 26 Individual settings .......................... 343 Limited Warranty ............................. 30 Loading .......................................... 452 Locking (in an emergency) ............... 82 Locking (SmartKey) .......................... 73 Lowering ........................................ 429 Maintenance .................................... 27 Parking for a long period ................ 285 Pulling away ................................... 269 Raising ........................................... 426 Reporting problems ......................... 29 Towing away .................................. 435 Transporting .................................. 437 Unlocking (in an emergency) ........... 81 Unlocking (SmartKey) ...................... 73 Vehicle data ................................... 480 Vehicle battery see Battery (vehicle) Vehicle data ....................................... 480 see Technical data Vehicle dimensions ........................... 480 Vehicle emergency locking ................ 82 Vehicle identification number see VIN Vehicle identification plate .............. 473 Vehicle level Active Body Control (ABC) ............. 305 AIRMATIC ...................................... 303 Display message ............................ 368 Vehicle level (display message) ....... 367 Vehicle tool kit .................................. 424 Video see Video DVD Video AUX Video DVD Setting the picture ......................... 224 Automatic picture shutoff .............. 224 DVD menu ..................................... 228 Fast forward/rewind ...................... 226 Function restrictions ...................... 225 Interactive content ........................ 229 Notes on discs ............................... 224 Operation ....................................... 224 Operation using the on-board computer ....................................... 337 Pause function ............................... 227 Playing conditions .......................... 225 Safety notes .................................. 224 Selecting ........................................ 226 Selecting a film/title ...................... 227 Selecting a scene/chapter ............ 227 Setting the audio format ................ 229 Setting the language ...................... 229 Setting the picture ......................... 224 Showing/hiding the control menu . 225 Showing/hiding the menu ............. 226 Stop function ................................. 227 Subtitles ........................................ 229 Switching to ................................... 225 Index 25 VIN ...................................................... 473 Voice Control System Settings ......................................... 129 Volume, adjusting Window curtain air bag Display message ............................ 356 Operation ......................................... 46 COMAND ....................................... 124 Navigation messages ..................... 124 Cleaning ......................................... 417 see Side windows Windows Windshield Defrosting ...................................... 259 Infrared reflective .......................... 406 Windshield washer system .............. 412 Notes ............................................. 480 Windshield wipers Problem (malfunction) ................... 253 Replacing the wiper blades ............ 252 Switching on/off ........................... 251 Winter driving Important safety notes .................. 444 Slippery road surfaces ................... 290 Snow chains .................................. 445 M+S tires ....................................... 444 Winter tires Wiper blades Cleaning ......................................... 418 Important safety notes .................. 252 Wooden trim (cleaning instructions) ...................................... 420 Waiting call ........................................ 185 Warning and indicator lamps ABS ................................................ 380 Brakes ........................................... 379 Check Engine ................................. 384 Cruise control ................................ 291 Distance warning ........................... 385 DISTRONIC PLUS ........................... 385 ESP® .............................................. 381 ESP® OFF ....................................... 382 Fuel tank ........................................ 384 LIM (DISTRONIC PLUS) .................. 295 Overview .......................................... 34 PASSENGER AIRBAG OFF indicator lamp .................................. 46 Reserve fuel ................................... 384 Seat belt ........................................ 378 SRS ................................................ 383 Tire pressure monitor .................... 385 Warranty ............................................ 473 Washer fluid Display message ............................ 376 see Windshield washer system Weather Band Searching for a channel ................. 198 Switching on .................................. 198 Wheel bolt tightening torque ........... 429 Wheel chock ...................................... 426 Wheels Changing a wheel .......................... 425 Checking ........................................ 443 Cleaning ......................................... 416 Important safety notes .................. 442 Interchanging/changing ................ 465 Mounting a wheel .......................... 428 Removing a wheel .......................... 428 Storing ........................................... 466 Tightening torque ........................... 429 Wheel size/tire size ....................... 466 26 Introduction 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: RNew Vehicle Limited Warranty REmission Systems Warranty REmission Performance Warranty RCalifornia, Connecticut, Maine, Massachusetts, New York, Pennsylvania, Rhode Island and Vermont Emission Control Systems Warranty RState Warranty Enforcement Laws (Lemon Laws) Introduction 27 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. 28 Introduction 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: 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 Safety notes G WARNING 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. G WARNING 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: Rturn on your hazard warning flashers. Rslow down carefully. Rdrive 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. 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: Rwork relevant to safety Rservice and maintenance work Rrepair work Ralterations, installation work and modifications Rwork on electronic components Proper use G WARNING 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: Rsafety notes in this Operator's Manual Rtechnical data in this Operator's Manual Rtraffic rules and regulations Rlaws 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 Introduction 29 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. 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 observe the mbrace1 purchase agreement for further details on the recording and transfer of data by this system. 30 Introduction 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 Headquarters, 1200 New Jersey Avenue, SE, West Building, Washington, DC 20590. You can also obtain additional information about 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 are not covered either by Mercedes-Benz Limited Warranty or by the New or Used-Vehicle Warranty of Daimler AG. 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 mbrace1, 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 1 The system is called TELE AID in Canada. Cockpit ................................................. 32 Instrument cluster .............................. 33 On-board computer and COMAND ..... 35 Center console .................................... 36 Overhead control panel ...................... 37 Door control panel .............................. 38 31 32 Cockpit Cockpit Function Page Function : Steering wheel paddle shifters ; Combination switch = Cruise control lever ? Horn A Instrument cluster B DIRECT SELECT lever C Control panel for: Vehicle level Suspension tuning PARKTRONIC Swiveling the COMAND display COMAND display brightness Instrument lighting 277 246 291 33 273 303 304 306 114 114 114 D Overhead control panel E Automatic climate control F Ignition lock Start/Stop button G Adjusts the steering wheel Steering wheel heating H Electric parking brake I On-board diagnostics socket J Opens the hood K Night View Assist Plus L Light switch Page 37 256 267 267 98 99 284 408 317 244 Instrument cluster Displays Instrument cluster 33 Function : Coolant temperature ; Fuel gauge = PARKTRONIC ? Multifunction display Speedometer A Transmission position B Tachometer C Drive program D Parking Guidance Page 330 306 332 275 331 277 310 Function E Unit of measurement for the speedometer F Outside temperature G Additional speedometer H HOLD function Ä PRE-SAFE® Brake I Adaptive Highbeam Assist Active Lane Keeping Assist ATTENTION ASSIST Page 344 331 344 302 66 248 324 316 34 Instrument cluster Warning and indicator lamps Function : Turn signal ; Electric parking brake (red) Page 246 379 F (USA only) ! (Canada only) = Electric parking brake (yellow) F (USA only) ! (Canada only) ? Seat belt A ESP® B Distance warning 379 378 381 385 Function C Brakes $ (USA only) J (Canada only) D ESP® OFF E Tire pressure monitor F Check engine G ABS H SRS I High-beam headlamps J Reserve fuel Page 379 381 385 384 380 383 247 384 On-board computer and COMAND 35 On-board computer and COMAND Function Page Function Page A ? Switches on the Voice Control System; see the separate operating instructions B Swivels the COMAND display Adjusts the brightness of the instrument lighting and the COMAND display C COMAND display D CD and DVD player/ changer E COMAND controller and COMAND function buttons 114 114 111 204 108, 109 : % Back or deactivates the Voice Control System ; =; Selects a menu 9: Selects a function or scrolls through lists a Confirms selection or fades out display messages = Multifunction display ? ~ Rejects or ends a call Exits phone book/redial memory Makes or accepts a call Switches to the redial memory WX Adjusts the volume or operates RACETIMER on AMG vehicles 8 Mute 333 333 332 340 340 338 36 Center console Center console Function Page Function : Function button for the radio and CD/DVD/SD card ; Back button = Hazard warning lamps ? Lumbar support Multicontour seat A Function button for the telephone and navigation system B Switches COMAND on/off 109 109 247 238 239 136 123 C Adjusts the volume D Programmable button E Telephone keypad F Rear window roller sunblind G Retracts the rear seat head restraints H Selects the drive program I COMAND controller Page 124 109 110 393 95 277 108 Overhead control panel Overhead control panel 37 Function : Eyeglasses compartment ; p Switches the left- hand reading lamp on/off = v Switches the rear interior lighting on/off ? c Switches the front interior lighting on/off A 3 Opens/closes the sliding sunroof B G SOS button (mbrace system) C | Switches the automatic interior lighting control on/off Page 249 403 Function D p Switches the right- hand reading lamp on/off E Rear-view mirror F Buttons for the garage door opener G Microphone for mbrace (emergency call system), telephone and the Voice Control System2 Page 389 249 250 250 89 396 250 2 Observe the additional operating instructions. 38 Door control panel Door control panel Function Page D n Activates/ deactivates the override feature for the side windows in the rear compartment E p Opens/closes the trunk lid 60 84 Function : Opens the door ; %& Unlocks/locks the vehicle = Adjusts the seat electrically ? r45= Memory function w Adjusts the front- passenger seat from the driver’s seat A c Seat heating s Seat ventilation B 7Zª\ Adjusts and folds the exterior mirrors in/out electrically C W Opens/closes the side windows Page 80 80 94 102 94 97 98 100 86 Useful information .............................. 40 Occupant safety .................................. 40 Children in the vehicle ........................ 55 Panic alarm .......................................... 60 Driving safety systems ....................... 61 Theft deterrent locking systems ....... 68 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 Please read the information on qualified specialist workshops (Y page 29). Occupant safety Overview of occupant safety 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 anchors Additional protection is provided by: RSRS (Supplemental Restraint System) RNECK-PRO 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. G WARNING Modifications to or work improperly conducted on restraint system components or their wiring, as well as tampering with interconnected electronic systems, can lead to the restraint systems no longer functioning as intended. Air bags or Emergency Tensioning Devices (ETDs), for example, could deploy inadvertently or fail to deploy in accidents although the deceleration threshold for air bag deployment is exceeded. Therefore, never modify the restraint systems. Do not tamper with electronic components or their software. i See "Children in the vehicle" (Y page 55) for more information on infants and children traveling with you in the vehicle and restraints for infants and children. SRS (Supplemental Restraint System) Introduction SRS consists of: Rthe 6 SRS warning lamp Rair bags Rair bag control unit (with crash sensors) REmergency Tensioning Devices Rbelt force limiters SRS 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 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. The SRS components are in operational readiness when the 6 SRS warning lamp is not lit while the engine is running . G WARNING The SRS self-check has detected a malfunction if the 6 SRS warning lamp: Rdoes not come on at all Rfails to go out approximately 4 seconds after the engine was started Rcomes on after the engine was started or while driving For your safety, Mercedes-Benz strongly recommends that you have the system checked as soon as possible at an authorized Mercedes-Benz Center. Otherwise the SRS may not be activated when it is needed in an accident, which could result in serious or fatal injury. The SRS might also deploy unexpectedly and unnecessarily which could also result in injury. In addition, improper 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. If it is necessary to modify an air bag system to accommodate a person with disabilities, contact an authorized Mercedes-Benz Center for details. USA only: Call our Customer Assistance Center at 1-800-FOR-MERCedes (1-800-367-6372) for details. 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 Occupant safety 41 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. 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. 42 Occupant safety 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 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 driver's knee bag) Rside impacts (side impact air bags and window curtain 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 To reduce the risk of injuries during front air bag inflation, the driver and front-passenger must always be seated correctly and have their seat belts fastened accordingly. 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. Since 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 properly fastened in a position that is as upright as possible with your back against the seat 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) or more. 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 by the rim. Placing hands and arms inside the rim can increase the risk and potential severity of hand/arm injury when 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 or the rear side trim panel where the side impact air bag inflates. This could result in serious injuries or death should the side impact air bag be deployed. Always sit as upright as possible, wear the seat belt properly and use an appropriately sized child restraint, infant 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. 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. G WARNING Accident research shows that the safest place for children in an automobile is in a rear seat. There is a possibility for a side impact air bag- related injury if occupants, especially children, are not properly seated or restrained when next to a side impact air bag which needs to deploy rapidly in a side impact in order to do its job. To help avoid the possibility of injury, please follow these guidelines: (1) Occupants, 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 injuries or death should Occupant safety 43 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. and for children 12 years old and under, use an appropriately sized infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. Always wear seat belts properly. (2) (3) If you believe that, even with the use of these guidelines, it would be safer for your rear seat occupants to have the rear mounted side impact air bags deactivated, then deactivation can be carried out upon your written request at an authorized Mercedes- Benz Center at an additional cost. Please contact an authorized Mercedes-Benz Center or call the 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 for details. The air bags are only deployed if the air bag control unit detects the need for deployment. Only in the event of such a situation will they provide their supplemental protection. The driver and passenger should always wear their seat belts. Otherwise, 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 passengers 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 44 Occupant safety 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. Front air bags The front air bags increase protection for the driver's and front-passenger's head and chest. : Driver's air bag ; Front-passenger front air bag = Knee bag 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. They are deployed: 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 Rif the seat belt is fastened Rindependently of other air bags in the vehicle If the vehicle overturns, the front air bags are generally not deployed unless the system detects high vehicle deceleration in a longitudinal direction. Your vehicle has adaptive, two-stage front air bags. In the event of a collision, the air bag control unit evaluates the vehicle deceleration. In the first deployment stage, the front air bag is filled with enough propellant gas to reduce the risk of injuries. The front air bag is fully deployed if a second deployment threshold is exceeded within a few milliseconds. 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 46). 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 42 indicator lamp in the center console is not lit, (Y page 46). Rthe air bag control unit predicts a high impact severity. Driver's knee bag Driver's knee bag =(Y page 44) provides additional protection for the driver against: Rknee injuries Rthigh injuries Rlower leg injuries Driver's knee bag =(Y page 44) deploys below the steering wheel. During a frontal impact, if the system determines that air bag deployment can offer additional protection to that provided by the seat belt, driver's knee bag =(Y page 44) is deployed along with the driver's air bag. Driver's knee bag=(Y page 44) operates best in conjunction with a properly positioned and fastened seat belt. Side impact air bags G WARNING The pressure sensors for side impact air bag control are located in the doors. Do not modify any components of the doors or door trim panels including, for example, the addition of door speakers. Improper repair work on the doors or the modification or addition of components to the doors create a risk of rendering the side impact air bags inoperative or causing unintended air bag deployment. Work on the doors must therefore only be performed by qualified technicians. Contact an authorized Mercedes-Benz Center. G WARNING Only use seat covers which have been tested and approved by Mercedes-Benz for your vehicle model. Using other seat covers may interfere with or prevent the deployment of the side impact air bags. Contact an authorized Mercedes-Benz Center for availability. 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 Occupant safety 45 Front side impact air bags : and rear side impact air bags ; deploy next to the outer seat cushions. 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 seat belt use Rindependently of the front air bags Rindependently of the ETDs If the vehicle overturns, the side impact air bags are generally not deployed. They 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. If the OCS detects that the front-passenger seat is not occupied and the front-passenger seat belt is not fastened (the belt tongue is not engaged in the seat belt buckle), the side impact air bag on the front-passenger side will not deploy. 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. 46 Occupant safety Window curtain air bags The 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 extending from the front door (A- pillar) to the rear sidewall (C-pillar). Window curtain 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 Rregardless of whether the front-passenger seat is occupied Rindependently of seat belt use Rif the vehicle overturns and the system determines that window curtain air bag deployment can offer additional protection to that provided by the seat belt Rindependently of the front air bags Window curtain air bags : will not deploy in impacts with deceleration rates which do not exceed the system's preset deployment thresholds for vehicle deceleration or acceleration. You will then be protected by the fastened seat belt. Occupant Classification System (OCS) How the occupant classification system works The Occupant Classification System (OCS) categorizes the occupant on the front- passenger seat by means of a weight sensor. The front-passenger front air bag is deactivated automatically for certain weight categories. The 42 indicator lamp shows you the current status. If the 42 indicator lamp is illuminated, the front-passenger front air bag is deactivated. The system does not deactivate: Rthe side impact 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 If the front-passenger's weight is transferred to another object in the vehicle (e.g. by leaning on armrests), OCS may not be able to approximate the occupant's weight category. If the front-passenger seat, the seat cover or the seat cushion are damaged, have the necessary repair work carried out at an authorized Mercedes-Benz Center. For safety reasons, Mercedes-Benz recommends that you only use seat accessories which have been approved by Mercedes-Benz. Both the driver and the passenger should always use the 42 indicator lamp as an indication of whether or not the passenger is properly positioned. G WARNING If the 42 indicator lamp lights up 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 42 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 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 42 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 42 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 42 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 42 indicator lamp illuminated, the front-passenger front air bag is deactivated. With the 42 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 42 indicator lamp Occupant safety 47 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 42 indicator lamp is illuminated, the front-passenger front air bag is deactivated and will not be deployed. If the 42 indicator lamp is not illuminated, the front-passenger front air bag is 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 bags If the front-passenger front air bag is deployed, the rate of inflation will be influenced by: Rthe rate of vehicle deceleration as assessed by the air bag control unit Rthe front passenger's weight category as identified by OCS For further information, see "Air bag display messages" (Y page 357). 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 appropriately sized child restraint system or booster seat recommended for the size and weight of the child. The infant or child restraint system must be properly secured with the vehicle's seat belt, the seat belt and Top Tether strap, or lower anchors and Top Tether strap, fully in accordance with the child seat manufacturer's instructions. Occupants, especially children, should always sit as upright as possible, wear the seat belt properly and use an appropriate sized infant injured or even killed if the front-passenger front air bag inflates. 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 a typical 12-month- old child, the front-passenger front air bag can be activated or deactivated. If the driver's air bag deploys, this does not mean that the front-passenger front air bag also has to deploy. The OCS may have detected that the seat: Rwas empty or occupied by a person with a weight of up to or less than that of a typical 12-month-old child seated in a standard child restraint Rwas occupied by a small individual, such as a young teenager or a small adult Rwas occupied by a child in a child restraint system, whose weight is greater than that of a typical 12-month-old child. These are examples of when the OCS deactivates the front-passenger front air bag. Deactivation takes place although the collision fulfills the criteria for deploying the driver's air bag. 48 Occupant safety 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 when circumstances require you to place a child in the front- passenger seat: RYour vehicle is equipped with air bag technology designed to deactivate the front-passenger front air 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 42 indicator lamp is illuminated, indicating that the front- passenger front air bag is deactivated. Should the 42 indicator lamp not illuminate or go out while the restraint is installed, please check installation. Periodically check the 42 indicator lamp while driving to make sure the 42 indicator lamp is illuminated. If the 42 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 will be seriously If the SmartKey has been removed from the ignition lock or is in position 0, indicator lamp 42: does not light up. G WARNING If the red SRS 6 indicator lamp in the instrument cluster and the 42 indicator lamp are lit at the same time, there is a malfunction in the OCS. The front passenger front air 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. System self-test The 42 indicator lamp illuminates when you: Rturn the SmartKey to position 1 or 2 in the ignition lock Rpress the KEYLESS-GO Start/Stop button once or twice If an adult occupant is properly sitting on the passenger seat and the OCS classifies the occupant as an adult, the 42 indicator lamp illuminates and goes out again after approximately 6 seconds. If the seat is not occupied and the OCS classifies the front passenger seat as being Occupant safety 49 unoccupied, the 42 indicator lamp will illuminate and not go out. G WARNING If the 4 2 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. For more information, see "Problems with the Occupant Classification System" (Y page 50). G WARNING Never place anything between seat cushion and child seat (e.g. a pillow), since it reduces the effectiveness of the OCS. The underside and rear side child restraint system must be placed entirely on the seat cushion and the backrest of the front-passenger seat backrest. If necessary, adjust the tilt of the passenger seat backrest. An incorrectly mounted child seat could cause injuries to the child in case of an accident, instead of increasing protection for the child. Follow the manufacturer's instructions for installation of child restraint systems. 50 Occupant safety Problems with the occupant classification system Possible causes/consequences and M Solutions The OCS is malfunctioning. X Have the OCS checked as soon as possible at an authorized Mercedes-Benz Center. X Observe the additional display messages in the multifunction display (Y page 357).

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2012 Mercedes-benz CL Class Owners Manual