Lights
Vehicle features and options
This chapter describes all standard, country-spe‐ cific and optional features offered with the series. It also describes features and functions that are not necessarily available in your vehicle, e.g., due to the selected options or country versions. This also applies to safety-related functions and sys‐ tems. When using these functions and systems, the applicable laws and regulations must be ob‐ served.
Overview
Switches in the vehicle
The light switch element is located next to the steering wheel.
Parking lights, low beams and roadside parking lights
General information
Position of switch:
If the driver's door is opened when the ignition is switched off, the exterior lighting is automatically switched off.
Parking lights
Position of switch: 
The vehicle is illuminated on all sides.
Do not use the parking lights for extended periods; otherwise, they might drain the vehicle battery and it would then be impossible to start the engine.
When parking, switch on the one-sided roadside parking light.
Low beams
Switch position:
The low beams light up when the ignition is switched on.
Canada: roadside parking light
Principle
The vehicle can be illuminated on one side.
Turning on
With radio-ready state switched off, press the lever either up or down past the resistance point for approx. 2 seconds.
Turning off
Briefly press the lever to the resistance point in the opposite direction.
Welcome lights and pathway lighting
Welcome lights
General information
Depending on the vehicle equipment and the ambient brightness, individual lighting functions may be switched on briefly when the vehicle is unlocked.
Switch position:
Via iDrive:
- "My Vehicle"
- "Vehicle settings"
- "Lighting"
- "Exterior lighting"
- "Welcome lights"
The setting is stored for the driver profile currently used.
Pathway lighting
General information
The low beams stay lit for a short while if the headlight flasher is switched on after the radioready state is switched off.
Setting the duration
Via iDrive:
- "My Vehicle"
- "Vehicle settings"
- "Lighting"
- "Exterior lighting"
- "Pathway lighting"
- Set length of time.
The setting is stored for the driver profile currently used.
Automatic headlight control
Principle
The low beams are switched on and off automatically depending on the ambient brightness, for example in tunnels, in twilight or if there is precipitation.
General information
A blue sky with the sun low on the horizon can cause the lights to be turned on. The low beams always stay on when the fog light is switched on.
Activating
Switch position:
The indicator light in the instrument cluster is illuminated when the low beams are switched on.
System limits
The automatic headlight control cannot replace your personal judgment of lighting conditions.
For example, the sensors are unable to detect fog or hazy weather. In these situations, turn the lights on manually.
Daytime driving lights
General information
Switch position:
The daytime driving lights light up when the ignition is switched on. After the ignition is switched off, the parking lights light up in position
Activate/deactivate daytime driving lights
In some countries, daytime driving lights are mandatory, so it may not be possible to deacti‐ vate the daytime driving lights in front.
- "My Vehicle"
- "Vehicle settings"
- "Lighting"
- "Exterior lighting"
- Select the desired setting.
Settings are stored for the profile currently used.
Cornering light
General information
Switch position:
In tight curves, for instance on mountainous roads or when turning, an additional, cornering light is switched on that lights up the inside of the curve when the vehicle is moving below a certain speed.
The cornering light is automatically switched on depending on the steering-wheel angle or, where applicable, the use of turn signals.
When driving in reverse, the cornering lights may be automatically switched on regardless of the steering-wheel angle.
Adaptive headlight range control
The adaptive headlight range control feature balances out acceleration and braking processes as well as the vehicle load conditions in order to avoid blinding oncoming traffic. Illumination of the road is optimized.
Automatic High Beam Assistant
Principle
The Automatic High Beam Assistant detects other road users early on and automatically switches the high beams on or off depending on the traffic situation.
General information
The Automatic High Beam Assistant ensures that the high beams are switched on, whenever the traffic situation allows. In the low speed range, the high beams are not switched on by the system.
The system responds to light from oncoming traffic and traffic driving ahead of you, and to ambient lighting, for instance in towns and cities.
The high beams can be switched on and off manually at any time.
Activate Automatic High Beam Assistant
Switch position, depending on the vehicle equipment: 
Press the button on the turn signal lever.
The indicator light in the instrument clus‐ ter is illuminated when the low beams are switched on.
The headlights are automatically switched be‐ tween low beams and high beams.
The Automatic High Beam Assistant is deactivated when manually switching the high beams on and off.
To reactivate the Automatic High Beam Assistant, press the button on the turn signal lever.
System limits
The Automatic High Beam Assistant cannot replace the driver's personal judgment of when to use the high beams. In situation that require this, therefore dimming manually.
The system is not fully functional in the following situations, and driver intervention may be necessary:
- In very unfavorable weather conditions, such as fog or heavy precipitation.
- When detecting poorly-lit road users such as pedestrians, cyclists, horseback riders and wagons; when driving close to train or ship traffic; and at animal crossings.
- In tight curves, on hilltops or in depressions, in crossing traffic or half-obscured oncoming traffic on highways.
- In poorly-lit towns and cities and in the presence of highly reflective signs.
- When the windshield in front of the interior mirror is fogged up, dirty or covered with stickers, etc.
Fog lights
Bad weather light
Principle
The bad weather light ensures optimized illumination of the roadway in poor visibility, such as fog or rain. The light distribution of the low beams is adapted to the visibility.
Functional requirement
The automatic headlight control must be activated before switching on the bad weather light.
Turning on/off
Press the button.
Instrument lighting
Functional requirement
The parking lights or low beams must be switched on to set the brightness.
Adjusting
Adjust the brightness with the thumbwheel.
Interior lighting
General information
Depending on the equipment, the interior lights, footwell lights, entry lights, and courtesy lights are controlled automatically.
The thumbwheel for the instrument lighting controls brightness of some of these features.
Overview
- Interior lights
- Reading lights
Switching the interior lights on/off
Press the button.
To switch off permanently: press the button and hold for approx. 3 seconds.
Switching the reading lights on/off
Press the button.
Depending on the vehicle equipment, the reading lights are located next to the interior lights in the front and rear.
Ambient light
General information
Depending on the equipment version, lighting can be adjusted for some lights in the car's interior.
Selecting the color scheme
Via iDrive:
- "My Vehicle"
- "Vehicle settings"
- "Lighting"
- "Interior lighting"
- "Lighting design"
- Select the desired setting.
To deactivate the ambient light: "Off".
Setting the brightness
Via iDrive:
- "My Vehicle"
- "Vehicle settings"
- "Lighting"
- "Interior lighting"
- "Brightness"
- Adjust the brightness.