
2017-2019 Smart Forfour Interior Features Information
The 2017–2019 Smart Forfour’s interior features were made to make the best use of room and offer modern conveniences in a small package. The cabin had a clean, simple plan and was made of high-quality materials. Even though it was small, there was plenty of headroom and legroom for passengers. Inside, clever storage solutions were cleverly built in, such as door pockets, compartments, and a cargo room that is surprisingly big for its class. The dashboard had a central infotainment screen, which was usually between 7 and 8 inches and made it easy to access navigation, entertainment, and car settings. The Forfour also often came with connectivity choices like Bluetooth, USB ports, and smartphone integration. These added convenience and entertainment while keeping the car’s focus on being quick and useful in cities.
Locking and unlocking the doors from the inside
Locking and unlocking the doors from the inside
Using the door handle to unlock the door
- Pull door handle: If the vehicle has previously been locked with the key, opening a door from the inside will trigger the anti-theft alarm system. To disable the alarm, switch on the ignition.
Centrally locking and unlocking the vehicle from the inside
WARNING
If children are left unsupervised in the vehicle, they can:
- open doors and endanger other persons or road users
- climb out and be injured by the traffic
- operate vehicle equipment and, for example, trap themselves. Children could also set the vehicle in motion, for example by:
- releasing the parking brake
- shifting the automatic transmission out of park position P
- starting the engine.
There is a risk of an accident and injury. When leaving the vehicle, always take the key with you and lock the vehicle. Never leave children unattended in the vehicle. Always keep the key out of reach of children.
- To lock: press the button: When the doors are locked, the indicator lamp; lights up.
- To unlock: press the button:.
Activating and deactivating the automatic locking feature
The activated automatic locking feature locks the vehicle automatically when the ignition is switched on and the vehicle is moving.
- When the engine is running, press and hold the button: for 5 seconds until a tone sounds. When the automatic locking function is activated, the locking mechanism engages audibly when you pull away. When the automatic locking function is deactivated, no sound occurs.
Activating the double-lock function
For the United Kingdom only: the double-lock function prevents the doors from being opened from the inside.
WARNING
When the double locks are activated, the doors can no longer be opened from the inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a risk of injury. Therefore, do not leave any people unsupervised in the vehicle, particularly children, elderly people or people in need of special assistance. Do not activate the double lock when people are in the vehicle.
WARNING
If persons (particularly children) are exposed to heat or cold for a prolonged period, there is a risk of serious or even fatal injuries. Never leave persons (particularly children) unattended in the vehicle.
- Press button: twice. The double-lock function is enabled.
Understanding the reversing feature
Vehicles with automatic operation: the side windows are equipped with an automatic reversing feature. If a solid object blocks or restricts a side window from closing during automatic operation, the side window opens again automatically. During the manual closing process, the side window only opens again automatically after the corresponding switch is released. The automatic reversing feature is only an aid. The driver is responsible for operating the side windows safely.
WARNING
The reversing feature does not react:
- To soft, light and thin objects, e.g. small fingers
- While adjusting
This means that the reversing feature cannot prevent someone being trapped in these situations. There is a risk of injury. When closing, make sure that no body parts are in the closing area. If someone becomes trapped, press the W button to open the side window again.
Opening and closing the windows
Please note
WARNING
While closing the side windows, body parts in the closing area could become trapped. There is a risk of injury. When closing make sure that no parts of the body are in the closing area. If somebody becomes trapped, release the switch or press the switch to open the side window again.
WARNING
Children could become trapped if they operate the side windows, particularly when unattended. There is a risk of injury. When leaving the vehicle, always take the key with you and lock the vehicle. Never leave children unattended in the vehicle.
WARNING
If you close a side window again immediately after it has been blocked or reset, the side window closes with increased or maximum force. The reversing function is then not active. Parts of the body could be trapped in the closing area in the process. This poses an increased risk of injury or even fatal injury. Make sure that no parts of the body are in the closing area. To stop the closing process, release the switch or push the switch again to reopen the side window.
Vehicles with automatic operation: the switches for both side windows are located on the driver’s door. There is also a switch for the front-passenger window on the front-passenger door. The switch on the driver’s door takes precedence.
Opening and closing the windows
- Left side window
- Right side window
- To open: press the switch.
- To close: pull the switch.
Opening and closing windows fully in automatic mode
Vehicles with automatic operation:
- To open the windows fully, press the switch beyond the point of resistance and release it.
- To close the windows fully, pull the switch beyond the point of resistance and release it.
- To stop automatic operation, press the switch again.
Opening and closing the hinged windows of rear doors
Opening the hinged windows

- Fold the lever forwards.
- Use the lever to push the hinged window out to the stop.
- Push the lever back until as far as it will go
Closing the hinged windows
- Fold the lever forwards.
- Use the lever to pull in the hinged window.
- Push the lever back until as far as it will go
Opening and closing the folding top
WARNING
During opening and closing, body parts in the sweep of the folding top can get trapped. There is a risk of injury.
When opening and closing make sure that no parts of the body are in the sweep.
Release the switch immediately if some-body becomes trapped.
The opening or closing will stop.
WARNING
Children could become trapped if they operate the folding top, particularly when unattended. There is a risk of injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave children unattended in the vehicle.
Only open the folding top if it is free of snow and ice. Otherwise, malfunctions may occur.
Do not allow anything to protrude from the folding top. Otherwise, the seals could be damaged.
Operating the climate control system

To open or close the folding top, the ignition must be switched on.
- To open: press the switch to position : until the folding top is in the desired position.
- X To close: press the switch to position ; until the folding top is in the desired position.
It is possible to open or close the folding top while driving at speeds of up to 100 km/h.
Operating the Climate Control System
Useful information
The climate control system is only available when the ignition is switched on.
If the climate control system is deactivated, the air supply and circulation are switched off. The windows could mist up. You should therefore switch off the climate control system for brief periods only.
In air-recirculation mode, only the air inside the vehicle is recirculated and no fresh air is introduced. This is useful in a tunnel or when there are unpleasant odours outside the vehicle. In air-recirculation mode, the windows may mist up more quickly, particularly when the outside temperature is low. There-fore, switch on air-recirculation mode only briefly.
The integrated filter in the climate control system keeps out most particles of dust as well as pollen. The filter reduces the amount of air supplied to the vehicle interior. For this reason, always observe the interval for replacing the filter.
Operating the automatic climate control system
Switching the automatic climate control system on and off

The ignition must be switched on in order to operate the blower. The engine must be running in order to operate all the functions of the automatic climate control system.
- To switch on: press the

button. The indicator lamps below à and
light up.
- To switch off: press the ^ button. The indicator lamp below ^ lights up.
Setting the temperature
- Move the slider in small increments to the left or right.
In automatic mode, the set temperature is maintained at a constant level. The air distribution and blower speed are regulated automatically.
Setting and switching the air distribution off
- Press one or more of the ,
buttons.

- Demister vents
- RP Centre and side air vents
- Footwell vents
Increasing the blower speed
- Press the
button.
Decreasing the blower speed
- Press the
button.
Activating/deactivating air-recirculation mode
- Press the
button.
- The indicator lamp above
button.
- lights up when air-recirculation mode is activated.
Switching “Cooling with air dehumidification” on or off
The “Cooling with air dehumidification” function cools and dehumidifies the air inside the vehicle during warm weather. The engine must be running in order to use “Cooling with air dehumidification”.
- To switch on: press the
and
button.
The indicator lamp above
lights up when air-recirculation mode is activated.
Switching “Cooling with air dehumidification” on or off
The “Cooling with air dehumidification” function cools and dehumidifies the air inside the vehicle during warm weather.
The engine must be running in order to use “Cooling with air dehumidification”.
- To switch on: press the
and
button.
- The indicator lamp below
lights up when the function is activated.
In damp weather, only switch off the “Cooling with air dehumidification” function briefly. Otherwise the windows can mist up more quickly.
Demisting the windscreen
Press the
button.
The indicator lamp above
lights up when the windscreen is being demisted.
Use this setting only until the windscreen is clear again.
Demisting the rear window
When the rear window heating is activated, the exterior mirrors are also heated.
- Press the
button.
The indicator lamp above 
- lights up when the rear window heating is activated.
Use this setting only until the rear window is clear again.
Drying windows that are misted up on the inside
- Press the
button.
- Press the
button.
- If the windows are still misted up, press the
button.
Use this setting only until the windows are clear again.
Drying windows that are misted up on the outside
- Switch on the windscreen wipers.
- Press the
button.
Use this setting only until the windows are clear again.
Setting the pre-entry climate control at departure time using the on-board computer
Only for instrument cluster with colour display:
The “Pre-entry climate control at departure time” function heats or cools the vehicle interior before the scheduled departure time. The climate control runs until approx. 10 minutes after the set departure time.
The vehicle must be connected to the charger in order to activate pre-entry climate control. The battery charge and the charge out-put of the high-voltage battery must be sufficient.
If pre-entry climate control cannot be operated, a display message is shown in the on-board computer.
- Call up Pre-heat/cool and charge in the on-board computer.
- Press OK.
Select one of the following settings:
The pre-entry climate control is deactivated.
-
- Two stored departure times
- Departure time > select Activate to activate the stored departure time. If Smart-Charging was selected before, this setting is also activated.
Activating/deactivating the seat heating and steering wheel heating
- Departure time > select Change to change the settings of a stored departure time.
- Set the value.
- Select Smart-Charging or instant charging
A display message is shown with the selected settings.
Smart-Charging is selected, the high- voltage battery charges at minimum cost while also conserving battery life. Depending on the set departure time, charging of the high-voltage battery may not start immediately or may be interrupted during the charging process.
The charging station must support the transmission of tariff information in order for the optimised charging process with Smart-Charging to be possible. If the charging station does not provide tariff information, set the preferred charging times on the “smart control” website.
instant charging is selected, the high-voltage battery is charged regard-less of the cost information. A part of the charging may not be conducted until one to two hours before the departure time, in order for temperature control of the high-voltage battery to be carried out for the intended departure time.
Adjusting the air vents
Please note
WARNING
Very hot or very cold air can flow from the air vents. This could result in burns or frostbite in the immediate vicinity of the air vents. There is a risk of injury.
Make sure that all vehicle occupants always maintain a sufficient distance to the air outlets. If necessary, redirect the airflow to another area of the vehicle interior.
WARNING
If you pour cleaning fluid or disinfectant into the vehicle’s ventilation system, it may ignite. There is a risk of fire.
Never spray these or other agents into the ventilation system. Always have work on the ventilation system carried out at a qualified specialist workshop.
- Keep the following rules in mind for optimal climate control:
- Keep the air slots between the service cover and windscreen clear of blockages.
- Do not cover the vents or ventilation grilles in the vehicle interior.
- Open the air vents fully.
Opening and closing the air vents

- To open 1: turn the vent outwards.
- To close 2: turn the vent inwards.
Directing the air vents
- Turn the air vents upwards, downwards, to the left or to the right as desired.
Activating/deactivating the seat heating and steering wheel heating
WARNING
Repeatedly switching on the seat heating can cause the seat cushion, the backrest pad and parts of the steering wheel to become very hot. The health of persons with limited temperature sensitivity or a limited ability to react to higher temperatures may be affected or they may even suffer burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on repeatedly.
When the seat heating is switched on, the seat surface can be damaged as a result of objects being placed on the seats, for example, seat cushions, child seats and protective covers not approved by Mercedes-Benz.
Ensure that there are no objects on the seat surface when the seat heating is switched on.

The seat heating only works when the ignition is switched on. Vehicles with the Winter package are additionally equipped with “Steering wheel heating” function : and the “Rear seat heating” function. The rear seat heating buttons are located on the surface of the rear seat armrests.
- Press button.
Indicator lamp ; lights up when seat heating is activated.
Vehicles with the Winter package: steering
wheel heating : is also switched on when the driver’s seat heating is activated.
Using the accessories
WARNING
You can burn yourself if you touch the hot heating element or the socket of the cigarette lighter.
In addition, flammable materials can ignite if:
- The hot cigarette lighter falls
- A child holds the hot cigarette lighter to objects, for example
There is a risk of fire and injury.
Always hold the cigarette lighter by the knob. Always make sure that the cigarette lighter is out of reach of children. Never leave children unattended in the vehicle.

The cigarette lighter only works when the ignition is switched on.
- Press cigarette lighter :.
When the cigarette lighter : is hot, it pops up automatically.
Using the ash tray
The cup holder in the centre console is not heat resistant. Before placing lit cigarettes in the ashtray, make sure that the ashtray is fully inserted in the cup holder. Make sure that lit cigarettes do not fall into the cup holder.
Otherwise, the cup holder could be damaged.
Using the Accessories

- To open: lift up cover :.
- To close: push down cover :.
- To remove: pull the ashtray up and out.
- To insert: insert the ashtray into the cup
Using the 12 V socket

- Turn the key to position 1 in the ignition lock.
- Lift up the cover of socket :.
- Connect the device.
The socket can be used for accessories up to a maximum draw of 120 W (15 A).
If you use the socket for very long periods when the engine is switched off, the 12 V battery may discharge.
Fitting and removing the floormats
WARNING
Objects in the driver’s footwell may restrict the clearance around the pedals or block a depressed pedal. This jeopardises the operating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicle so that they do not get into the driver’s foot-well. Always fit the floormats securely and as prescribed in order to ensure that there is always sufficient room for the pedals. Do not use loose floormats and do not place several floormats on top of one another.

- Slide the driver’s seat backward.
- To install: press securing knobs: onto retainers ;.
- To remove: release securing knobs: from retainers ;.
Tablet bracket for iPad Air®
Useful information
iPad Air® tablets can be attached to the back of the front seats using the tablet bracket in the rear.
The tablet bracket offers the following functions:
- The attachment can be rotated 180° allowing the iPad® to be used in portrait or land-scape mode.
- The attachment can be gently tilted allowing individual setting.
Please note
WARNING
The iPad® distracts the driver from the traffic situation. This could cause the driver to lose control of the vehicle.
There is a risk of an accident.
The driver must never use the iPad® while driving.
Always keep the iPad® away from the driver’s field of vision.
WARNING
A bracket fitted in the vehicle without an attachment could be thrown around and thereby hit vehicle occupants, for example in the event of an accident, braking or a sudden change in direction.
There is a risk of injury.
Make sure that the entire tablet bracket is securely mounted in the fitting.
When removing the iPad® or the attachment, remove the entire tablet bracket.
When adjusting and folding the seats with the tablet bracket mounted, contact with adjacent components may occur. If a charging cable is connected to the tablet bracket, the charging cable or the USB port may be damaged.
In order to avoid damage adjust the seats with the appropriate caution.
When folding down the rear bench seat, ensure that the rear bench seat does not collide with the tablet bracket.
You must observe the legal requirements for the country in which you are currently driving when operating the tablet bracket for iPad Air®.
Further information on the tablet bracket is available from any smart centre.
Mounting the tablet bracket


Before mounting, ensure that no objects, e.g. coat hangers, are on the headrests.
- Mount bracket : on the back of attachment; until the bracket 1 audibly engages.
- Insert tablet bracket 4 with the bracket forwards into fitting 3 until the tablet bracket audibly engages.
Affixing protective film
WARNING
The display of the iPad® may shatter in an accident. If there is no protective film on the display, you or other passengers may receive eye injuries, for example, caused by fragments.
There is a risk of injury.
Ensure that the protective film is affixed to the display.
To avoid air bubbles or dirt getting under the surface, observe the following tips:
- Do not bend the protective film.
- Do not touch the adhesive surface of the protective film.
- Use disposable gloves to affix the protective film.
- Carefully clean the display of the iPad®
- The adhesive surface of the protective film is protected by a thin transparent backing film. Peel off half the backing film from the protective film.
- Affix the upper edge of the protective film to the edge of the display by applying gentle pressure.
- Slowly peel off the backing film from the protective film. At the same time, carefully apply pressure to the protective film with a suitable implement or plastic card such as a credit card and smooth over the sur-face.
If air bubbles or dirt particles are present after attaching the protective film, proceed as follows:
- Carefully remove the protective film from the display.
- Remove dust and impurities.
- Attach the protective film once again.
Inserting an iPad Air®

- Turn the attachment: so that the opening faces the vehicle interior.
- Insert iPad® with Lightning connection; first into the attachment until the attachment audibly locks.
- Move the attachment to the desired position.
FAQs
How many people can the Smart Forfour seat comfortably?
The Smart Forfour seats four people comfortably.
Does the Forfour have adjustable seats?
Yes, both the driver and front passenger seats on the Forfour are manually adjustable.
Are the interior materials of good quality?
Yes, the interior materials of the Forfour are of high quality, with long-lasting textiles and plastics used throughout the cabin.
What kind of infotainment system does it offer?
The Forfour offers a touchscreen infotainment system with Bluetooth, USB connections, and smartphone integration.
How much cargo space does the Forfour offer?
With the back seats folding, the Forfour has around 975 liters of cargo space.
Are there any interior color options available?
Yes, Smart offers a variety of interior color options for the Forfour’s cabin.
Does it have a navigation system?
Certain Forfour models are equipped with a navigation system.
Are there cupholders in the Forfour?
Yes, both the front and rear passengers have cupholders in the Forfour.
How is the visibility from the driver’s seat?
Because of its big windshield and well-designed window positioning, the Forfour provides good visibility for the driver.
Are there any storage compartments in the cabin?
The Forfour offers several storage compartments and pockets for your convenience.
Does it come with automatic climate control?
For enhanced comfort, some Forfour models include automatic climate control.
Can the rear seats be folded down?
The rear seats may be folded down to increase cargo capacity.
Does it have a sunroof?
A panoramic sunroof is available as an option in some trim levels.
Are the seats comfortable for long drives?
The seats are ergonomically built to make long rides more bearable.
Does the Forfour offer any ambient lighting options?
Yes, Smart provides ambient lighting settings in the Forfour to improve the interior environment.
Useful Link
View Full PDF: Smart Forfour 2017-2019 User Manual| Auto User Guide
2017-2019 Smart Forfour Seats Setup Guide