2010 Mercedes-benz R Class Owners Manual

wearing their seat belts. G Warning! Never ride in a moving vehicle with the seat backrest in an excessively reclined position as this can be dangerous. You could slide under the seat belt in a collision. If you slide under it, the seat belt would apply force at the abdomen or neck. That could cause serious or even fatal injuries. The seat backrest and seat belt provide the best restraint when the wearer is in a position that is as upright as possible and the seat belt is properly positioned on the body. G Warning! Never let more people ride in the vehicle than there are seat belts available. Make sure everyone riding in the vehicle is correctly restrained with a separate seat belt. Never use a seat belt for more than one person at a time.

G Warning! Damaged seat belts or seat belts that have been subjected to stress in an accident must be replaced. Also, the seat belt anchoring points must be checked. Only use seat belts which have been approved by Mercedes-Benz. Do not make any modifications to the seat belts. This can lead to unintended activation of the ETDs or to their failure to activate when necessary. Do not bleach or dye seat belts as this may severely weaken them. In a crash they may not be able to provide adequate protection. Have all work carried out only by qualified technicians. Contact an authorized Mercedes-Benz Center.

Proper use of seat belts G Warning! USE SEAT BELTS PROPERLY RSeat belts can only protect when used

properly. Never wear seat belts in any other way than as described in this section, as that could result in serious injuries in case of an accident.

REach occupant should wear their seat belt at all times, because seat belts help reduce the likelihood of and potential severity of injuries in accidents, including rollovers. The integrated restraint system includes SRS (driver front air bag, front passenger front air bag, side impact air bags, window curtain air bags for door windows), Emergency Tensioning Devices (ETDs), seat belt force limiters, and front seat knee bolsters. The system is designed to enhance the protection offered to properly belted occupants in certain frontal (front air bags and ETDs) and side (side impact air bags, window curtain air bags, and ETDs) impacts which exceed preset deployment

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thresholds and in certain rollovers (window curtain air bags and ETDs).

RPlace the seat backrest in a position that is

as upright as possible.

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49

RNever wear the shoulder belt under your

arm, against your neck or off your shoulder. In a frontal crash, your body would move too far forward. That would increase the chance of head and neck injuries. The seat belt would also apply too much force to the ribs or abdomen, which could severely injure internal organs such as your liver or spleen. Adjust the seat belt so that the shoulder section is located as close as possible to the middle of the shoulder. It should not touch the neck. Never pass the shoulder portion of the seat belt under your arm. For this purpose, you can adjust the height of the seat belt outlet.

RPosition the lap belt as low as possible on your hips and not across the abdomen. If the lap belt is positioned across your abdomen, it could cause serious injuries in a crash.

RNever wear seat belts over rigid or

breakable objects in or on your clothing, such as eyeglasses, pens, keys etc., as these might cause injuries.

RMake sure the seat belt is always fitted snugly. Take special care of this when wearing loose clothing.

RNever use a seat belt for more than one

person at a time. Do not fasten a seat belt around a person and another person or other objects at the same time.

RSeat belts should not be worn twisted. In a crash, you would not have the full width of the seat belt to distribute impact forces. The twisted seat belt against your body could cause injuries.

RPregnant women should also always use a

lap/shoulder belt. The lap belt portion should be positioned as low as possible on the hips to avoid any possible pressure on the abdomen.

RCheck your seat belt during travel to make

sure it is properly positioned.

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.

RWhen using a seat belt to secure infant

restraints, toddler restraints, or children in booster seats, always follow the child seat manufacturer’s instructions. G Warning! Do not pass seat belts over sharp edges. They could tear. Do not allow the seat belt to get caught in the door or in the seat adjustment mechanism. This could damage the seat belt. Never attempt to make modifications to seat belts. This could impair the effectiveness of the seat belts.

Fastening the seat belts G Warning! According to accident statistics, children are safer when properly restrained in the rear seating positions than in the front seating position. 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 infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. For additional information, see “Children in the vehicle”. A child’s risk of serious or fatal injuries is significantly increased if the child restraints are not properly secured in the vehicle and/ or the child is not properly secured in the child restraint.

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X If necessary, adjust the seat belt to the

correct height (Y page 50).

X If necessary, tighten the lap portion to a snug fit by pulling shoulder portion up.

All lap/shoulder belts except the driver’s seat belt have special seat belt retractors to secure child restraints properly. For more information on special seat belt retractors, see “Infant and child restraint system” (Y page 55). To release the seat belt with seat belt release button ?, see (Y page 51).

Seat belt outlet height adjustment

X Raising: Slide seat belt outlet height

adjuster ; upward. Seat belt outlet height adjuster ; engages in various positions.

X Lowering: Press and hold release

button :.

X Slide seat belt outlet height adjuster ;

downward.

X Release button : and make sure seat belt

outlet height adjuster ; engages into place.

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G Warning! Vehicles with BabySmart™ air bag deactivation system, Canada only: Children 12 years old and under must never ride in the front seat, except in a Mercedes-Benz authorized BabySmart™ compatible child seat, which operates with the BabySmart™ system installed in the vehicle to deactivate the front passenger front air bag when it is installed properly. Otherwise they will be struck by the air bag when it inflates in a crash. If this happens, serious or fatal injury will result.

X With a smooth motion, pull the seat belt out

of seat belt outlet :.

X Place the shoulder portion of the seat belt across the top of your shoulder and the lap portion across your hips.

X Push latch plate ; into buckle = until it

clicks. Seat belt adjustment function: The seat belts on both front seats adjust to the upper body automatically as necessary (Y page 51).

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Seat belt adjustment function The seat belt adjustment function adjusts the seat belts on both front seats to the upper body of the respective vehicle occupant. The seat belt will be pulled slightly tighter for that purpose when Ryou engage the latch plate into the buckle and then turn the SmartKey in the starter switch to position 2

Rthe SmartKey in the starter switch is in

position 2 and you then engage the latch plate in the buckle

The seat belt adjustment function takes place with a certain amount of retracting force when the system senses slack between the vehicle occupant and the seat belt. Do not retain the seat belt during this procedure. You can activate or deactivate the seat belt adjustment function via the control system (Y page 138).

Releasing the seat belts X Press seat belt release button ?

(Y page 50). Allow the retractor to completely rewind the seat belt by guiding latch plate ; (Y page 50).

! Make sure the seat belt retracts

completely. Otherwise the seat belt and/or latch plate could get caught or pinched in the door or in the seat mechanism. This can damage the seat belt and impair its effectiveness, and/or cause damage to the door and/or door trim panel. Such damage is not covered by the Mercedes-Benz Limited Warranty. Damaged seat belts must be replaced. Contact an authorized Mercedes-Benz Center.

Enhanced seat belt reminder system When the engine is started, the seat belt telltale 7 will always illuminate for

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6 seconds to remind you and your passengers to fasten your seat belts. If the driver’s seat belt is not fastened when the engine is started, an additional warning chime will sound. The warning chime goes out after approximately 6 seconds or once the driver’s seat belt is fastened. If after these 6 seconds the driver’s or the front passenger’s seat belt (with the front passenger seat occupied) is not fastened with front doors closed, Rthe seat belt telltale 7 remains

illuminated for as long as either the driver’s or front passenger’s seat belt is not fastened.

Rand if the vehicle speed once exceeds

15 mph (25 km/h), the seat belt telltale 7 starts flashing and a warning chime sounds with increasing intensity for a maximum of 60 seconds or until the driver’s and front passenger’s seat belt are fastened. If you and/or your passenger release the seat belt during driving, the seat belt telltale 7 starts flashing and the warning chime sounds as described before. If the driver’s or the front passenger’s seat belt remains unfastened after 60 seconds, the warning chime stops sounding, the seat belt telltale 7 stops flashing but continues to be illuminated. After a vehicle standstill, the warning chime is reactivated and the seat belt telltale 7 is flashing again if the vehicle speed once exceeds 15 mph (25 km/h).

The seat belt telltale 7 will only go out if both the driver’s and the front passenger’s seat belt (with the front passenger seat occupied) are fastened, or the vehicle is standing still and a front door is opened. For more information, see “Practical hints” (Y page 302).

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Emergency Tensioning Device (ETD), seat belt force limiter The seat belts for the following seats are equipped with ETDs and seat belt force limiters: Rfront seats Routboard second-row seats Rthird-row seats The ETDs are designed to activate in the following cases: Rin frontal or rear-end impacts exceeding

the system’s preset deployment threshold

Rin side impacts exceeding the system’s preset deployment threshold on the far side of the impact

Rin certain vehicle rollovers Rif the restraint systems are operational and

functioning correctly, see “SRS indicator lamp” (Y page 36)

The ETDs for the front seats will only activate if the front seat belts are fastened (latch plate properly inserted into buckle). The ETDs for the rear outer seats (second-row seats) or rear seats (third-row seats) will activate with or without the respective seat belts fastened. In an impact, the ETDs remove slack from the seat belts in such a way that the seat belts fit more snugly against the body. Seat belt force limiters, when activated, are employed to help reduce the peak force exerted by the seat belts on occupants during a crash. i The ETDs do not correct an incorrect seat

position or incorrectly worn seat belts. The ETDs do not pull occupants back toward the seat backrest. G Warning! Pyrotechnic ETDs that were activated must be replaced. For your safety, when disposing of the pyrotechnic ETDs always follow our safety

instructions. These are available at any authorized Mercedes-Benz Center. The PRE-SAFE® system has electrically operated reversible pre-tensioners that do not require replacement after activation.

Preventive occupant safety (PRE- SAFE®) G Warning! The PRE-SAFE® system is intended to reduce the effects of an accident on vehicle occupants who are wearing their seat belt properly. 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. Therefore, always drive carefully and adjust your driving to the prevailing road, weather, and traffic conditions.

The PRE-SAFE® system takes preventive measures to better protect the occupants from the possibility of personal injuries in the following hazardous situations: Remergency braking maneuvers with the Brake Assist System (BAS) (Y page 64) activated

Rcritical dynamic driving situations, e.g. when the vehicle has been caused to understeer or oversteer because it has exceeded its physical limitations or in case of evasive steering maneuvers at speeds above approximately 85 mph (140 km/h)

PRE-SAFE® takes the following measures when it is activated: RThe front seat belts are pre-tensioned

automatically.

RVehicles with front passenger seat memory

function: If the passenger seat is in an unfavorable position, the seat will be adjusted to a position that seeks to better protect the occupant.

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RIf the vehicle is in a critical dynamic driving situation, the door windows close, except for a minimal gap that remains open.

RVehicles with power tilt/sliding sunroof: If the vehicle is in a critical dynamic driving situation, the tilt/sliding sunroof also closes, except for a minimal gap that remains open.

If the closing procedure of any of these elements is blocked, it will stop and open slightly. Once the hazardous situation no longer exists and an accident has been avoided, the seat belt pre-tensioning is deactivated. All of the PRE-SAFE® settings can be re-adjusted following the critical driving event. If the seat belts do not release: X Adjust the seat backrest or seat slightly to

the rear until the seat belt tension is reduced. The locking mechanism releases.

! When moving the seats, make sure there are no items in the footwell or behind the seats. Otherwise, you could damage the seats and/or the items.

For information on the seat belt adjustment function as an integrated comfort feature of PRE-SAFE®, see (Y page 51).

NECK-PRO active front head restraints The NECK-PRO active front head restraints are intended to offer the driver and front passenger increased protection from whiplash-type injuries. In the event of a rear- end collision, the NECK-PRO active front head restraints on the front seats are designed to move forward in the direction of travel. They thus provide the head with increased support earlier on in the collision sequence. The NECK-PRO active front head restraints will move forward whether the seats are occupied or not.

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G Warning! Do not attach any objects (e.g. hangers) to the head restraint posts. Otherwise, the NECK- PRO active front head restraints may not be able to function properly or offer the intended degree of protection they were designed for in the event of a rear-end collision. G Warning! Only use seat or head restraint covers which have been tested and approved by Mercedes- Benz for your vehicle model. Using other seat or head restraint covers may interfere with or prevent the activation of the NECK-PRO active front head restraints and/ or the deployment of the front side impact air bags. Contact an authorized Mercedes-Benz Center for availability. When the NECK-PRO active front head restraints have been triggered in an accident, the NECK-PRO active front head restraints must be reset. Otherwise, the NECK-PRO active front head restraints cannot offer any additional protection in the event of another rear-end collision. For information on resetting the activated NECK-PRO active front head restraints, see “Resetting activated head restraints” (Y page 310). You cannot remove the NECK-PRO active front head restraints. G Warning! For your protection, drive only with properly positioned head restraints. Adjust the head restraint so that it is as close to the head as possible and the center of the head restraint supports the back of the head at eye level. This will reduce the potential for injury to the head and neck in the event of an accident or similar situation. For information on head restraint adjustment, see “Head restraint height” (Y page 83), or

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see “Head restraint fore and aft adjustment” (Y page 83).

Correct driver seat adjustment G Warning! In order to avoid possible loss of vehicle control the following must be done before the vehicle is put into motion: Rseat adjustment Rhead restraint adjustment Rsteering wheel adjustment Rrear view mirror adjustment Rfastening of seat belts

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Make sure: RYou can reach the steering wheel with your

arms slightly bent at the elbows.

RYou can move your legs freely. RAll displays (including malfunction and

indicator lamps) on the instrument cluster are clearly visible.

Seat belt G Observe Safety notes, see page 47. X Fasten and position your seat belt ;

correctly (Y page 49).

Make sure: RThe seat belt is always fitted snugly. RAdjust the seat belt so that the shoulder section is located as close as possible to the middle of the shoulder.

RPlace the lap portion of the seat belt as low

as possible on your hips.

Seat and head restraint G Observe Safety notes, see page 81. X Position seat = and head restraint

properly. See (Y page 82) for seat and head restraint adjustment. Observe the following points: RAlways be in a properly seated position. RThe position should be as far rearward from

the front air bag in the steering wheel as possible, while still permitting proper operation of vehicle controls.

Steering wheel G Observe Safety notes, see page 91. X Position steering wheel : properly. See (Y page 92) for manual adjustment and (Y page 92) for electrical adjustment.

RAdjust the seat to a comfortable seating position that still allows you to reach the accelerator/brake pedal safely.

RThe seat must be adjusted so that you can correctly fasten and position your seat belt. RThe seat backrest must be in a position that

is as nearly upright as possible.

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RAdjust the seat cushion so that the front edge of the seat cushion lightly supports your legs.

RAdjust the head restraint so that it is as

close to the head as possible and the center of the head restraint supports the back of the head at eye level.

RNever place hands under the seat or near any moving parts while the seat is being adjusted.

Children in the vehicle Safety notes If an infant or child is traveling with you in the vehicle: X Secure the child using an infant or child

restraint appropriate to the age and size of the child.

X Make sure the infant or child is properly secured at all times while the vehicle is in motion. G Warning! When leaving the vehicle, always remove the SmartKey from the starter switch. Always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, even if they are secured in a child restraint system, or with access to an unlocked vehicle. A child’s unsupervised access to a vehicle could result in an accident and/or serious personal injury. The children could Rinjure themselves on parts of the vehicle Rbe seriously or fatally injured through

excessive exposure to extreme heat or cold Rinjure themselves or cause an accident with

vehicle equipment that can be operated even if the SmartKey is removed from the starter switch or removed from the vehicle, such as seat adjustment, steering wheel adjustment, or the memory function

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If children open a door, they could injure other persons or get out of the vehicle and injure themselves or be injured by following traffic. Do not expose the child restraint system to direct sunlight. The child restraint system’s metal parts, for example, could become very hot, and the child could be burned by these parts. G Warning! Do not carry heavy or hard objects in the passenger or cargo compartment unless they are firmly secured in place. Unsecured or improperly positioned cargo increases a child’s risk of injury in the event of Rstrong braking maneuvers Rsudden changes of direction Ran accident

Infant and child restraint systems G Observe Safety notes, see page 55. We recommend all infants and children be properly restrained at all times while the vehicle is in motion. Canada only: Only use a BabySmart™ compatible child restraint for the front passenger seat in this vehicle. All lap/shoulder belts except the driver’s seat belt have special seat belt retractors for secure fastening of child restraints. To fasten a child restraint, follow the child restraint manufacturer’s instructions for mounting. To activate the special seat belt retractor: X Pull the shoulder belt out completely and

let it retract.

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During seat belt retraction, a ratcheting sound can be heard to indicate that the special seat belt retractor is activated. The seat belt is now locked.

X Push down on child restraint to take up any

slack.

To deactivate the special seat belt retractor: X Release the seat belt buckle and let the

seat belt retract completely. The seat belt can then again be used in the usual manner.

To deactivate the special seat belt retractor for the front passenger seat, the front passenger seat must be in the most backward position. G Warning! Never release the seat belt buckle while the vehicle is in motion, since the special seat belt retractor will be deactivated.

i Information on child seats with mounting

fittings for tether anchorages (Y page 57). For information on LATCH-type child seat anchors (Y page 60).

The use of infant or child restraints is required by law in all 50 states, the District of Columbia, the U.S. territories and all Canadian provinces. Infants and small children should be seated in an appropriate infant or child restraint system. They must be properly secured in accordance with the manufacturer’s instructions for the child restraint. All infant or child restraint systems must comply with U.S. Federal Motor Vehicle Safety Standards 213 and 225 and Canadian Motor Vehicle Safety Standards 213 and 210.2. A statement by the child restraint manufacturer of compliance with these standards can be found on the instruction label on the restraint and in the instruction manual provided with the restraint.

When using any infant restraint, toddler restraint, or booster seat, make sure to carefully read and follow all manufacturer’s instructions for installation and use. Please read and observe warning labels affixed to the inside of the vehicle and to infant or child restraints. G Warning! According to accident statistics, children are safer when properly restrained in the rear seating positions than in the front seating position. 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 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 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 when circumstances require you to place a child in the front passenger seat: RUSA only: Your 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.

RUSA only: For children larger than the

typical 12-month-old child, the front passenger front air bag may or may not be

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activated. Always make sure the 42 indicator lamp is illuminated, indicating that the front passenger front air bag is deactivated. RCanada only: Children 12 years old and under must never ride in the front seat, except in a Mercedes-Benz authorized BabySmart™ compatible child seat, which operates with the BabySmart™ system installed in the vehicle to deactivate the front passenger front air bag when it is installed properly. Otherwise they will be struck by the air bag when it inflates in a crash. If this happens, serious or fatal injury will result.

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 completely eliminate this risk is to never place a child in a rear-facing child restraint in the front seat. We therefore strongly recommend that you always place a child in a rear-facing child restraint in a backseat.

RIf you must install a rear-facing child restraint on the front passenger seat because circumstances require you to do so, 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.

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A 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.

RIf you have to 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, and secure child restraint with the vehicle’s seat belt according to the child seat manufacturer’s instructions. G Warning! Infants and small children should never share a seat belt with another occupant. During an accident, they could be crushed between the occupant and seat belt. A child’s risk of serious or fatal injuries is significantly increased if the child restraints are not properly secured in the vehicle and/ or the child is not properly secured in the child restraint. Children too big for a toddler restraint must ride in seats using regular seat belts. Position shoulder belt across chest and shoulder, not face or neck. A booster seat may be necessary to achieve proper seat belt positioning for children over 41 lb (18 kg) until they reach a height where a lap/shoulder belt fits properly without a booster. When the child restraint is not in use, remove it from the vehicle or secure it with the seat belt to prevent the child restraint from becoming a projectile in the event of an accident.

Installation of infant and child restraint systems This vehicle is equipped with tether anchorages for a top tether strap at each of the rear seat backrests. The tether anchorage ring of the second-row middle seat is located on the rear of the seat base (Y page 59).

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Top tether straps enable an additional connection to be made between child restraint systems secured with LATCH-type anchors and rear seats. This can further reduce the risk of injury. G Observe Safety notes, see page 55. Outboard second-row and third-row seats

X Press in lower part of anchorage ring

cover : on the seat backrest on which a child seat is to be installed.

X Pull on upper part of anchorage ring

cover : to remove cover.

X Store anchorage ring cover : in a convenient place (e.g. glove box).

X Move the respective head restraint to its

uppermost position (Y page 88).

X Release the respective seat backrest

(Y page 84). The seat backrest folds down.

X Guide the top tether strap between head

restraint and top of the seat backrest.

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X Securely fasten hook =, which is part of the tether strap ?, to anchorage ring ;.

i For safety, make sure hook = is attached

to anchorage ring ; beyond the safety catch, as illustrated.

Make sure Rtop tether strap ? is not twisted Rthe head restraint is installed and

positioned such that top tether strap ? can pass freely between the head restraint and top of the seat backrest

Rtop tether strap ? is positioned between

the seat backrest and the cargo compartment cover blind (if installed)

Rtop tether strap ? is positioned between

the seat backrest and the cargo net (if installed) G Warning! When installing a child seat on a third-row seat, do not fasten the hook to the strap below the anchorage ring. Otherwise, the child seat will not be securely fastened. A child’s risk of serious or fatal injuries is significantly increased if the child seat is not properly secured in the vehicle.

X Fold seat backrest up and push backwards

until it engages audibly. An outboard second-row seat is locked properly only when the lock status indicator is in hinged position and the red marking is barely visible (Y page 86).

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G Warning! After installing top tether straps, make sure the seats are locked properly, the seat backrests are in an upright position and they are locked properly. An outboard second-row seat is locked properly only when the lock status indicator is in hinged position and the red marking is barely visible. If a seat and seat backrest are not locked properly, the seat could move forward and the seat backrest could fold. The child seat would no longer be supported properly or positioned to provide its intended benefit. That could cause serious or even fatal injuries.

X Lower the head restraint if necessary

(Y page 88). Make sure top tether strap ? can pass freely between the head restraint and top of the seat backrest.

X Install the child restraint system and

tighten top tether strap ? according to the child restraint manufacturer’s instructions. After removing the child restraint system and top tether strap ?: X Reinstall anchorage ring cover :.

Second-row middle seat G Warning! Only install a child seat in the second-row middle seat position if the outboard seat belt buckle is not obstructed or overlapped by the child seat. Not all child seats, including some Mercedes-Benz approved child seats, can be used in this seating position. Contact an authorized Mercedes-Benz Center for more information. Do not use the LATCH anchors or seat belt buckle for the outboard seats in conjunction with a child seat in the second-row middle seat position. Child seats in the middle seating position must only be secured by the middle seat position seat belt inserted into

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the seat belt buckle for the second-row middle seat. G Warning! Please be aware that installation of a child seat in the second-row middle seat position can prevent the folding forward of the outboard second-row seats which can obstruct access to and exit from the third-row seats. In case of an accident it will be difficult for occupants of the third-row seats to leave the vehicle. Serious injuries could result. Install a child seat in one of the outboard seating positions according to the installation instructions if access to the third-row seats is required.

X Move the head restraint to its uppermost

position (Y page 88).

X Pull seat backrest release strap : in the

direction of arrow.

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X Fold seat backrest ; forward to seat

cushion = as far as necessary for you to access anchorage ring ?.

no longer be supported properly or positioned to provide its intended benefit. That could cause serious or even fatal injuries.

X Lower the head restraint if necessary

(Y page 88). Make sure top tether strap B can pass freely between the head restraint and top of the seat backrest.

X Install the child restraint system and

tighten top tether strap B according to the child restraint manufacturer’s instructions.

Child seat anchors – LATCH-type G Observe Safety notes, see page 55. G Warning! Children too big for a toddler restraint must ride in seats using regular seat belts. Position shoulder belt across chest and shoulder, not face or neck. A booster seat may be necessary to achieve proper seat belt positioning for children over 41 lb (18 kg) until they reach a height where a lap/shoulder belt fits properly without a booster. Install child seat according to manufacturer’s instructions. The child seat must be firmly attached to both anchors. An incorrectly mounted child seat may come loose during an accident which could result in serious injury or death to the child. Damaged or impact damaged child seats or child seat mounting fittings must be replaced. Each of the outboard second-row seats and third-row seats has two LATCH-type anchors for the installation of a LATCH-type child seat with matching mounting fittings. Non-LATCH-type child seats may also be used and can be installed using the vehicle’s seat belt system. Install child seat according to the manufacturer’s instructions.

X Guide top tether strap B between head

restraint and top of the seat backrest.

X Securely fasten hook A, which is part of top tether strap B, to anchorage ring ?.

Make sure Rtop tether strap B is not twisted Rthe head restraint is installed and

positioned such that top tether strap B can pass freely between the head restraint and top of the seat backrest

Rtop tether strap B is positioned between

the seat backrest and the cargo compartment cover blind (if installed)

Rtop tether strap B is positioned between

the seat backrest and the cargo net (if installed)

i For safety, make sure hook A is attached

to anchorage ring ? beyond the safety catch, as illustrated.

X Fold seat backrest up and push backwards

until it engages audibly. G Warning! After installing the top tether strap, make sure the seat backrest is in an upright position and is locked properly. If the seat backrest is not locked properly, the seat backrest could fold. The child seat would

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The LATCH-type anchors on the outboard second-row seats are covered with upholstery blends.

Information sign ; indicates the position of anchor :. X Move the respective outboard second-row

seat backrest to an upright position (Y page 87).

X Push the upholstery blend to the side. X Install a LATCH-type child seat according

to the manufacturer’s instructions. A rigid connection between the child seat and the body of the vehicle is established.

The LATCH-type anchors on the third-row seats are blended with covers.

X Remove anchorage ring covers = from

anchors ? of the third-row seat on which a child seat is to be installed.

X Install a LATCH-type child seat according

to the manufacturer’s instructions. A rigid connection between the child seat and the body of the vehicle is established.

Child safety Child safety locks G Observe Safety notes, see page 55. G Warning! Children could open a rear door from the inside. This may cause serious personal injury or an accident. Therefore, secure the rear doors with the child safety locks whenever children are riding in the back seats of the vehicle. The child safety locks on the rear doors enable you to secure each rear door individually. You cannot open a secured rear door from the inside. You can open the rear door from the outside when the vehicle is unlocked.

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Panic alarm

X Securing: Press the lever down in direction

of arrow ;.

X Check to make sure the child safety locks

are working properly.

X Releasing: Press the lever up in direction

of arrow :.

Override switch G Observe Safety notes, see page 55. With the override switch you can disable the rear door window switches in the rear door panels. This can be useful, for instance, when you have children riding in the rear passenger compartment. G Warning! Activate the override switch when children are riding in the back seats of the vehicle. The children may otherwise injure themselves, e.g. by becoming trapped in the rear door window opening.

X Activating: Press override switch :.

The switch engages in recessed position.

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The rear door windows can no longer be operated using the respective switch located in the rear doors.

You can still operate the rear door windows using the switches located on the door control panel of the driver’s door. X Deactivating: Press override switch :

again. The switch disengages from its recessed position back to its original position. The rear door windows can be operated again using the respective switch located in the rear doors.

For more information on power windows, see the “Controls in detail” section (Y page 106).

Panic alarm

Example illustration: SmartKey with KEYLESS-GO X Activating: Press and hold ! button : for at least 1 second. An audible alarm and flashing exterior lamps will operate briefly.

X Deactivating: Press ! button : again. or X Insert the SmartKey into the starter switch. or X Press the KEYLESS-GO start/stop button. The SmartKey with KEYLESS-GO must be inside the vehicle.

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i USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful

2.

interference, and this device must accept any interference received, including interference that may cause undesired operation.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

i Canada only:

This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause interference,

and this device must accept any interference received, including interference that may cause undesired operation of the device.

2.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

Driving safety systems Introduction This section contains information about the following driving safety systems: RABS (Antilock Brake System) RBAS (Brake Assist System) REBP (Electronic Brake Proportioning) RESP® (Electronic Stability Program) i In winter operation, the maximum effectiveness of most of the driving systems described in this section is only

Driving safety systems

63

achieved with winter tires, or snow chains as required.

Safety notes G Warning! The following factors increase the risk of accidents: RExcessive speed, especially in turns RWet and slippery road surfaces RFollowing another vehicle too closely The driving safety systems described in this section cannot reduce these risks or prevent the natural laws of physics from acting on the vehicle. They cannot increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded. Only a safe, attentive, and skillful driver can prevent accidents. The capabilities of a vehicle equipped with the driving safety systems described in this section must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others. Always adjust your driving style to the prevailing road and weather conditions and keep a safe distance to other road users and objects on the street. If a driving system malfunctions, other driving safety systems may also switch off. Observe indicator and warning lamps that may come on as well as messages in the multifunction display that may appear.

ABS G Observe Safety notes, see page 63. G Warning! Do not pump the brake pedal. Use firm, steady brake pedal pressure instead. Pumping the brake pedal defeats the purpose of the ABS

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64 Driving safety systems

and significantly reduces braking effectiveness. The Antilock Brake System (ABS) regulates the brake pressure so that the wheels do not lock during braking. This allows you to maintain the ability to steer your vehicle. The ABS is functional above a speed of approximately 5 mph (8 km/h) independent of road surface conditions. On slippery road surfaces, the ABS will respond even to light brake pressure. The ABS indicator lamp ! indicator lamp in the instrument cluster comes on when you switch on the ignition. It goes out when the engine is running.

Braking At the instant one of the wheels is about to lock up, a slight pulsation can be felt in the brake pedal. The pulsation indicates that the ABS is in the regulating mode. X Keep firm and steady pressure on the brake

pedal while you feel the pulsation.

Continuous, steady brake pedal pressure yields the advantages provided by the ABS, namely braking power and the ability to steer the vehicle. The pulsating brake pedal can be an indication of hazardous road conditions and functions as a reminder to take extra care while driving.

Emergency brake maneuver X Keep continuous full pressure on the brake

pedal. G Warning! If the ABS malfunctions, other driving safety systems such as the BAS or the ESP® are also switched off. Observe indicator and warning lamps that may come on as well as messages in the multifunction display that may appear.

If the ABS malfunctions, the wheels may lock during hard braking, reducing steering capability and extending the braking distance.

BAS G Observe Safety notes, see page 63. The Brake Assist System (BAS) operates in emergency situations. If you apply the brakes very quickly, the BAS provides full brake boost automatically, thereby potentially reducing the braking distance. X Apply continuous full braking pressure until

the emergency braking situation is over. The ABS will prevent the wheels from locking.

When you release the brake pedal, the brakes function again as normal. The BAS is then deactivated. G Warning! If the BAS malfunctions, the brake system still functions, but without the additional brake boost available that the BAS would normally provide in an emergency braking maneuver. Therefore, the braking distance may increase.

EBP G Observe Safety notes, see page 63. The Electronic Brake Proportioning (EBP) enhances braking effectiveness by allowing the rear brakes to supply a greater proportion of the braking effort in straight-line braking without a loss of vehicle stability. G Warning! If the EBP malfunctions, the brake system will still function with full brake boost. However, the rear wheels could lock up during emergency braking situations, for example. You could lose control of the vehicle and cause an accident. Adapt your driving style to the changed driving characteristics.

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ESP® G Observe Safety notes, see page 63. The Electronic Stability Program (ESP®) is operational as soon as the engine is running. It monitors the vehicle’s traction (force of adhesive friction between the tires and the road surface) and handling. The ESP® recognizes that the vehicle deviates from the direction of travel as intended by the driver. By applying brakes to individual wheels and by limiting the engine output, the ESP® works to stabilize the vehicle. The ESP® is especially useful while driving off and on wet or slippery road surfaces. The ESP® also stabilizes the vehicle during braking and steering maneuvers. The ESP® warning lamp d in the instrument cluster comes on when you switch on the ignition. It goes out when the engine is running. The ESP® warning lamp d in the instrument cluster flashes when the ESP® is engaged. G Warning! Never switch off the ESP® when you see the ESP® warning lamp d flashing in the instrument cluster. In this case proceed as follows: RWhen driving off, apply as little throttle as

possible.

RWhile driving, ease up on the accelerator

pedal.

RAdapt your speed and driving style to the

prevailing road conditions.

Failure to observe these guidelines could cause the vehicle to skid. The ESP® cannot prevent accidents resulting from excessive speed.

! Only conduct operational or performance tests on a two-axle dynamometer. If such tests are necessary, contact an authorized

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65

Mercedes-Benz Center. You could otherwise seriously damage the brake system or the transfer case which is not covered by the Mercedes-Benz Limited Warranty.

! Because the ESP® operates

automatically, the engine and ignition must be shut off (SmartKey in starter switch position 0 or 1 or KEYLESS-GO start/stop button in position 0 or 1) when the parking brake is being tested on a brake test dynamometer. Such testing should be no longer than 10 seconds. Active braking action through the ESP® may otherwise seriously damage the brake system which is not covered by the Mercedes-Benz Limited Warranty.

! The ESP® will only function properly if you use wheels of the recommended tire size as specified in the “Technical data” section of this Operator’s Manual.

i The Distronic system and cruise control

switch off automatically when the ESP® engages.

Electronic Traction System (4-ETS) G Observe Safety notes, see page 63. The 4-ETS (four-wheel Electronic Traction System) is a component of the ESP®. The 4-ETS improves the vehicle’s ability to utilize available traction, especially under slippery road conditions by applying the brakes to a spinning wheel. In addition, more power is transferred to the wheel(s) with traction. When you switch off the ESP®, the 4-ETS is still enabled.

Switching off the ESP® G Warning! The ESP® should not be switched off during normal driving other than in the

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circumstances described below. Disabling the system will reduce vehicle stability in driving maneuvers. Do not switch off the ESP® when a spare wheel is mounted. To improve the vehicle’s traction, switch off the ESP®. This allows the drive wheels to spin and thus cut into surfaces for better grip, for example Rwhen driving with snow chains Rin deep snow Rin sand or gravel G Warning! Switch on the ESP® immediately if the aforementioned circumstances do not apply anymore. Otherwise the ESP® will not stabilize the vehicle when it is starting to skid or a wheel is spinning.

When you switch off the ESP®, Rthe ESP® does not stabilize the vehicle Rthe engine output is not limited, which

allows the drive wheels to spin and thus cut into surfaces for better grip

Rthe 4-ETS will still apply the brakes to a

spinning wheel

Rthe ESP® continues to operate when you

are braking

Rthe cruise control or the Distronic system

cannot be activated

Rthe cruise control or the Distronic system

switch off if activated

i When the ESP® is switched off and one or more drive wheels are spinning, the ESP® warning lamp d in the instrument cluster flashes. However, the ESP® will then not stabilize the vehicle.

X With the engine running, press ESP®

switch : until the ESP® warning lamp d in the instrument cluster comes on. The ESP® is switched off. G Warning! When the ESP® warning lamp d is illuminated continuously, the ESP® is switched off or is not operational due to a malfunction. Vehicle stability in standard driving maneuvers is reduced. Adapt your speed and driving to the prevailing road conditions and to the non-operating status of the ESP®.

! Avoid spinning of a drive wheel for an extended period with the ESP® switched off. This may cause serious damage to the drivetrain which is not covered by the Mercedes-Benz Limited Warranty.

Switching on the ESP® X Press ESP® switch : until the ESP® warning lamp d in the instrument cluster goes out. You are now again in normal driving mode with the ESP® switched on.

ESP® trailer stabilization If the trailer you are towing should begin to sway, the rig can only be stabilized by immediately applying the brakes hard. Steering during this maneuver will not help to stabilize the rig.

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The ESP® will assist you in such situations. The ESP® recognizes when the trailer starts swaying and will apply the brakes to reduce the vehicle speed to a non-critical speed that allows the vehicle-trailer combination to stabilize. The ESP® trailer stabilization is functional at vehicle speeds above approximately 40 mph (65 km/h) when the ESP® is switched on. G Warning! The system will not be able to assist when the trailer jackknifes Rif the ESP® has switched off due to a

malfunction

Ron wet or icy roads Ron roads with slippery surface Rin sand or gravel Trailers with a high center of gravity may tip over before the system recognizes swaying of the trailer.

Anti-theft systems Immobilizer The immobilizer prevents unauthorized persons from starting your vehicle. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started by anyone with a valid SmartKey that is left inside the vehicle.

Activating X With SmartKey: Remove the SmartKey

from the starter switch.

X With KEYLESS-GO: Turn off the engine and

open the driver’s door.

Deactivating X Switch on the ignition. i Starting the engine will also deactivate

the immobilizer.

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67

In the event that the engine cannot be started (yet the vehicle’s battery is charged), the system is not operational. Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in the USA) or 1-800-387-0100 (in Canada).

Anti-theft alarm system Once the alarm system has been armed, a visual and audible alarm is triggered when someone opens Ra door Rthe tailgate Rthe hood The alarm will stay on even if the activating element, a door, for example, is closed immediately. The alarm system will also be triggered when Rthe vehicle is opened with the mechanical

key

Ra door is opened from the inside To cancel the alarm after it has been triggered, see “Canceling the alarm” (Y page 68). i If the alarm stays on for more than

30 seconds, the Tele Aid system initiates a call to the Response Center automatically. The Tele Aid system will initiate the call provided that Ryou have subscribed to the Tele Aid

service

Rthe Tele Aid service has been activated

properly

Rthe necessary mobile phone, power

supply and GPS coverage are available

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Anti-theft systems

The SmartKey must be within 3 ft (1 m) of the vehicle.

X Press the KEYLESS-GO start/stop button. The SmartKey must be inside the vehicle.

X Arming: Lock the vehicle with the

SmartKey or with KEYLESS-GO. The turn signal lamps flash three times to indicate that the vehicle is locked. Indicator lamp : flashes to indicate that the alarm system is armed.

i If the turn signal lamps do not flash three

times, a door or the tailgate may not be properly closed. Close the respective element.

X Disarming: Unlock the vehicle with the

SmartKey or with KEYLESS-GO. The turn signal lamps flash once to indicate that the alarm system is disarmed.

i Unless you open a door or the tailgate within approximately 40 seconds after unlocking the vehicle: RThe vehicle will be locked again. RThe anti-theft alarm system will be

rearmed.

Canceling the alarm To cancel the alarm, do one of the following: X Insert the SmartKey into the starter switch. X Press button % or & on the

SmartKey.

In vehicles with KEYLESS-GO: X Grasp an outside door handle.

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Vehicle equipment .............................. 70
Locking and unlocking ....................... 70
Starter switch positions ..................... 79
Seats .................................................... 81
Multifunction steering wheel ............. 91
Mirrors ................................................. 93
Memory function ................................. 96
Lighting ................................................ 97
Wipers ................................................ 103
Power windows ................................. 106
Driving and parking .......................... 110
Automatic transmission ................... 115
Transfer case .................................... 122
Instrument cluster ............................ 122
Control system .................................. 123
Driving systems ................................ 142
Overview of climate control sys- tem functions and air vents ............. 162
Climate control ................................. 164
3-zone automatic climate control ... 170
Rear window defroster ..................... 180
Power tilt/sliding sunroof ............... 181
Panorama roof with power tilt/ sliding panel ...................................... 184
Loading and storing .......................... 186
Useful features ................................. 201

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Locking and unlocking

Vehicle equipment

i This Operator’s Manual describes all

features, standard or optional, potentially available for your vehicle at the time of purchase. Please be aware that your vehicle might not be equipped with all features described in this manual.

SmartKey Your vehicle comes supplied with two SmartKeys, each with remote control and a removable mechanical key. The SmartKey centrally locks and unlocks: Rthe doors Rthe tailgate Rthe fuel filler flap

Locking and unlocking Notes G Observe Safety notes, see page 55. When unlocking the vehicle, all turn signal lamps flash once. The locking knobs in the doors move up. The anti-theft alarm system is disarmed. When locking the vehicle, all turn signal lamps flash three times. The locking knobs in the doors move down. The anti-theft alarm system is armed. All doors and the tailgate must be closed. i If you cannot lock or unlock the vehicle

with the SmartKey, the batteries in the SmartKey are discharged, the SmartKey is malfunctioning, or the vehicle battery is drained. RCheck the batteries in the SmartKey and

replace them if necessary.

RUse the mechanical key to unlock the

driver’s door.

2.

RUse the mechanical key to lock the

vehicle.

RHave the vehicle battery and the vehicle

battery connections checked at an authorized Mercedes-Benz Center.

If the SmartKey is malfunctioning, contact Roadside Assistance or an authorized Mercedes-Benz Center.

Example illustration: SmartKey with KEYLESS-GO : & Lock button ; F Unlock button for tailgate = % Unlock button

i USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful

interference, and this device must accept any interference received, including interference that may cause undesired operation.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

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