Attaching a roof luggage rack
WARNING Risk of accident due to exceeding the maximum roof load
The vehicle centre of gravity and the usual driving characteristics as well as the steering and braking characteristics alter.
If you exceed the maximum roof load, the driving characteristics, as well as steering and braking, will be greatly impaired.
Never exceed the maximum roof load and adjust your driving style.
You will find information on the maximum roof load in the "Technical data" section in the printed Owner's Manual.
NOTE Vehicle damage from non-approved roof luggage racks
The vehicle could be damaged by roof luggage racks that have not been tested and approved for Mercedes-Benz.
Use only roof luggage racks tested and approved for Mercedes-Benz.
Depending on the vehicle equipment, ensure that the sliding sunroof can be fully raised when the roof luggage rack is fitted.
Depending on the vehicle equipment, ensure that the boot lid can be fully opened when the roof luggage rack is fitted.
Position the load on the roof luggage rack in such a way that the vehicle will not sustain damage even when it is in motion.
NOTE Damage to the sliding sunroof when a roof luggage rack is fitted
The sliding sunroof may be damaged by the roof luggage rack if you attempt to open it when a roof luggage rack is fitted.
Do not open the sliding sunroof when a roof luggage rack is fitted.
In order to allow ventilation of the vehicle interior, you can raise the sliding sunroof.
NOTE Damage to the covers
The covers may be damaged and scratched when being opened.
Do not use metallic or hard objects.
Carefully fold covers 
upwards in the direction of the arrow.
upwards in the direction of the arrow. Secure the screws of the screw-on roof luggage rack to the fastening points beneath covers in compliance with the installation instructions of the roof luggage rack manufacturer.
in compliance with the installation instructions of the roof luggage rack manufacturer. Secure the load on the roof luggage rack.
Folding the rear seat backrest forwards
WARNING Risk of accident and injury if the rear bench seat/rear seat and seat backrest are not engaged
Rear bench seat, rear seat and seat backrest can fold forwards.
As a result, the vehicle occupant is pressed against the seat belt. The seat belt cannot perform its intended protective function and could cause additional injuries.
Objects or loads in the boot cannot be restrained by the seat backrest.
Make sure that the rear bench seat, the rear seat and the seat backrest are engaged before every trip.
Requirements:
The rear seat backrest head restraints are fully inserted.
You can fold the centre and outer seat backrests forwards separately.
Vehicles without a memory function: move the driver's or front passenger seat forwards, if necessary.
Vehicles with a memory function: if at least one section of the rear seat backrest is folded forwards, the corresponding front seat will move forwards slightly, if necessary, to avoid a collision.
To fold the left and right seat backrests forwards:
pull release lever . 
To fold the centre seat backrest forwards:
pull release catch 
of seat backrest 
forwards. Fold the corresponding seat backrest forwards.
Folding back the rear seat backrest
WARNING Risk of accident and injury if the rear bench seat/rear seat and seat backrest are not engaged
Rear bench seat, rear seat and seat backrest can fold forwards.
As a result, the vehicle occupant is pressed against the seat belt. The seat belt cannot perform its intended protective function and could cause additional injuries.
Objects or loads in the boot cannot be restrained by the seat backrest.
Make sure that the rear bench seat, the rear seat and the seat backrest are engaged before every trip.
NOTE Damage caused by trapping the seat belt when folding back the seat backrest
The seat belt could become trapped and thus be damaged when the seat backrest is folded back.
Make sure that the seat belt is not trapped when folding back the seat backrest.
Vehicles without a memory function: move the driver's or front passenger seat forwards, if necessary.
Vehicles with a memory function: if at least one part of the seat backrest in the rear is folded back, the corresponding front seat will automatically return to the most recent original position.
Fold the corresponding seat backrest back until it engages.
back until it engages. Left and right seat backrests: if the seat backrest is not engaged and locked, this will be shown on the multifunction display on the instrument cluster.
Centre seat backrest: if the seat backrest is not engaged and locked, the red lock verification indicator will be visible.
Opening the stowage space under the boot floor
NOTE Damage to the handle in the boot floor
If the handle in the boot is left protruding, the handle may be damaged.
Before closing the boot lid, detach the handle and press it down closed again.
The stowage space under the boot floor is available for all vehicles except hybrid vehicles.
Pull handle up and hook it into drip rail .
up and hook it into drip rail . Folding the ball neck out and in
WARNING Risk of accident due to the ball neck not being engaged
If the ball neck is not engaged, the trailer may come loose.
Always engage the ball neck as described.
WARNING Risk of injury from ball neck swinging outwards
The ball neck may swing outwards when unlocking or when it has not been properly engaged.
There is a risk of injury within the ball neck's range of movement!
Unlock the ball neck only when its range of movement is unobstructed.
Always be sure the ball neck is engaged when folding inwards.
Requirements:
The vehicle is secured against rolling away.
The swivel range is clear.
The trailer cables or adapter plugs have been removed.
Folding the ball neck out
Pull switch until the ball neck unlocks.
until the ball neck unlocks. The ball neck will fold out from under the rear bumper.
Indicator lamp will flash.
Pull the ball neck in the direction of the arrow until it engages audibly in a vertical position.
Indicator lamp on the ball neck release switch will go out.
If the ball neck is not securely locked in place, the Trailer coupling Check lock message will appear on the multifunction display.
Remove the cover cap from the ball head and store it in a safe place.
Make sure that the ball on the ball neck is clean. Check that it is either greased or dry (grease-free), depending on the instructions for the trailer.
Folding the ball neck in
Pull switch until the ball neck unlocks.
until the ball neck unlocks. The ball neck will fold up under the rear bumper.
Indicator lamp will flash.
Push the ball neck in the direction of the arrow until it engages audibly behind the bumper.
Indicator lamp will go out and the message on the multifunction display will disappear.
Overview of the tie-down eyes
This equipment is only available in vehicles with the through-loading feature in the rear bench seat.
Overview of the front stowage compartments
WARNING Risk of injury due to objects being stowed incorrectly
If objects in the vehicle interior are stowed incorrectly, they can slide or be thrown around and hit vehicle occupants. In addition, cup holders, open stowage spaces and mobile phone receptacles cannot always retain all objects within.
There is a risk of injury, particularly in the event of sudden braking or a sudden change in direction.
Always stow objects so that they cannot be thrown around in such situations.
Always make sure that objects do not protrude from stowage spaces, luggage nets or stowage nets.
Close the lockable stowage spaces before starting a journey.
Always stow and secure heavy, hard, pointed, sharp-edged, fragile or bulky objects in the boot/load compartment.
Observe the notes on loading the vehicle.
Locking/unlocking the glove compartment
WARNING Risk of injury due to objects being stowed incorrectly
If objects in the vehicle interior are stowed incorrectly, they can slide or be thrown around and hit vehicle occupants. In addition, cup holders, open stowage spaces and mobile phone receptacles cannot always retain all objects within.
There is a risk of injury, particularly in the event of sudden braking or a sudden change in direction.
Always stow objects so that they cannot be thrown around in such situations.
Always make sure that objects do not protrude from stowage spaces, luggage nets or stowage nets.
Close the lockable stowage spaces before starting a journey.
Always stow and secure heavy, hard, pointed, sharp-edged, fragile or bulky objects in the boot/load compartment.
Observe the notes on loading the vehicle.
Turn the emergency key a quarter turn clockwise 
(to lock) or anti-clockwise 
(to unlock).
(to lock) or anti-clockwise (to unlock).