Lights and windshield wipers. Mercedes-Benz CLS 550 BlueEFFICIENCY, 2013 CLS Coupe, 2013, CLS, CLS Series
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110
Exterior lighting
Useful information i This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's
Manual. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safetyrelated systems and functions.
i Read the information on qualified specialist workshops: ( Y page 24).
Asymmetrical low-beam headlamps
Have the headlamps converted back to asymmetrical low-beam headlamps at a qualified specialist workshop as soon as possible after crossing the border again.
Setting the exterior lighting
Setting options
Exterior lighting can be set using the:
R light switch
R combination switch ( Y page 113)
R the on-board computer ( Y page 221)
Exterior lighting
Important safety notes
For reasons of safety, Mercedes-Benz recommends that you drive with the lights switched on even during the daytime. In some countries, operation of the headlamps varies due to legal requirements and self-imposed obligations.
If you wish to drive during the daytime without lights, switch off the daytime running lamps function in the on-board computer
( Y page 221).
Light switch
Operation
Driving abroad
Symmetrical low-beam headlamps
Switch the headlamps to symmetrical low beam in countries in which traffic drives on the opposite side of the road from the country where the vehicle is registered. This prevents glare to oncoming traffic. When using symmetrical lights, the edge of the road is not lit as widely and as far ahead as normal.
Have the headlamps converted at a qualified specialist workshop as close to the border as possible before driving in these countries.
1W
2X
3T
4Ã
5L
Left-hand standing lamps
Right-hand standing lamps
Parking lamps, license plate and instrument cluster lighting
Automatic headlamp mode, controlled by the light sensor
Low-beam/high-beam headlamps
If you hear a warning tone when you leave the vehicle, the lights may still be switched on.
X Turn the light switch to Ã.
Exterior lighting
111
The exterior lighting (except the parking/ standing lamps) switches off automatically if you:
R remove the SmartKey from the ignition lock
R open the driver's door with the SmartKey in position 0.
Automatic headlamp mode
G WARNING
If the light switch is set to à and it is foggy, snowing or there is poor visibility, the lowbeam headlamps will not come on automatically. This could endanger you and others. In such situations turn the light switch to L.
The automatic headlamp feature is only an aid. The driver is responsible for the vehicle's lighting at all times.
1W
2X
3T
4Ã
5L
Left-hand standing lamps
Right-hand standing lamps
Parking lamps, license plate and instrument cluster lighting
Automatic headlamp mode, controlled by the light sensor
Low-beam/high-beam headlamps
à is the favored light switch setting. The light setting is automatically selected according to the brightness of the ambient light (exception: poor visibility due to weather conditions such as fog, snow or spray):
R
SmartKey in position 1 in the ignition lock: the parking lamps are switched on or off
X automatically depending on the brightness of the ambient light.
R
With the engine running: if you have activated the daytime running lamps function via the on-board computer, the daytime running lamps or the low-beam headlamps and parking lamps are switched on or off automatically depending on the brightness of the ambient light.
To switch on automatic headlamp
mode: turn the light switch to Ã.
Only for Canada:
The daytime running lamps improve the visibility of your vehicle during the day. The daytime running lamps function is required by law in Canada. It cannot therefore be deactivated.
When the engine is running and the vehicle is stationary: if you move the selector lever from a drive position to P, the daytime running lamps/low-beam headlamps go out after three minutes.
When the engine is running, the vehicle is stationary and in high ambient light brightness: if you turn the light switch to T, you turn on the daytime running lamps and parking lamps.
If the engine is running and you turn the light switch to L, the manual settings take precedence over the daytime running lamps.
USA only:
The daytime running lamps improve the visibility of your vehicle during the day. To do this, the daytime running lamps function must be switched on using the on-board computer
( Y page 221).
If the engine is running and you turn the light switch to T or L, the manual settings take precedence over the daytime running lamps.
i In the USA, the daytime running lamps are deactivated upon delivery from the factory.
Z
112
Exterior lighting
Low-beam headlamps
G WARNING
If the light switch is set to à and it is foggy, snowing or there is poor visibility, the lowbeam headlamps will not come on automatically. This could endanger you and others. In such situations turn the light switch to L.
The automatic headlamp feature is only an aid. The driver is responsible for the vehicle's lighting at all times.
Parking lamps
! If the battery has been excessively discharged, the parking lamps or standing lamps are automatically switched off to enable the next engine start. Always park your vehicle safely and sufficiently lit according to legal standards. Avoid the continuous use of the T parking lamps for several hours. If possible, switch on the
X right or the W left standing lamp.
1W
2X
3T
4Ã
5L
Left-hand standing lamps
Right-hand standing lamps
Parking lamps, license plate and instrument cluster lighting
Automatic headlamp mode, controlled by the light sensor
Low-beam/high-beam headlamps
Even if the light sensor does not detect that is dark, the parking lamps and low-beam headlamps switch on when the SmartKey is inserted into the ignition lock and the light switch is set to the L position. This is a particularly useful function in the event of rain and fog.
X
X
To switch on the low-beam headlamps: turn the SmartKey in the ignition lock to position 2 or start the engine.
Turn the light switch to L.
The green L indicator lamp in the instrument cluster lights up.
1W
2X
3T
4Ã
5L
Left-hand standing lamps
Right-hand standing lamps
Parking lamps, license plate and instrument cluster lighting
Automatic headlamp mode, controlled by the light sensor
Low-beam/high-beam headlamps
X To switch on: turn light switch to T.
The green T indicator lamp in the instrument cluster lights up.
Standing lamps
1W
2X
Left-hand standing lamps
Right-hand standing lamps
Exterior lighting
113
3T
4Ã
5L
Parking lamps, license plate and instrument cluster lighting
Automatic headlamp mode, controlled by the light sensor
Low-beam/high-beam headlamps
Switching on the parking lamps ensures the corresponding side of the vehicle is illuminated.
X
X
To switch on the standing lamps: the
SmartKey is not in the ignition lock or it is in position 0.
Turn the light switch to W (left-hand side of the vehicle) or X (right-hand side of the vehicle).
High-beam headlamps
Combination switch
Turn signals
:
;
=
?
High-beam headlamps
Turn signal, right
High-beam flasher
Turn signal, left
X To indicate briefly: press the combination switch briefly to the pressure point in the direction of arrow ; or ?.
The corresponding turn signal flashes three times.
X To indicate: press the combination switch beyond the pressure point in the direction of arrow ; or ?.
:
;
=
?
High-beam headlamps
Turn signal, right
High-beam flasher
Turn signal, left
X
X
To switch on the high-beam headlamps: turn the SmartKey in the ignition lock to position 2 or start the engine.
Turn the light switch to L or Ã.
X
X
Press the combination switch beyond the pressure point in the direction of arrow :.
In the à position, the high-beam headlamps are only switched on when it is dark and the engine is running.
The blue K indicator lamp in the instrument cluster lights up when the highbeam headlamps are switched on.
To switch off the high-beam
headlamps: move the combination switch back to its normal position.
The blue K indicator lamp in the instrument cluster goes out.
i Vehicles with Adaptive Highbeam Assist: when Adaptive Highbeam Assist is active, it controls activation of the high-beam headlamps ( Y page 115).
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114
Exterior lighting
High-beam flasher
The hazard warning lamps automatically switch on if:
R an air bag is deployed.
R the vehicle is slowed down rapidly from a speed of over 45 mph (70 km/h) and comes to a halt.
If the vehicle returns to a speed of over
6 mph (10 km/h) after a full application of the brakes, the hazard warning lamps are deactivated automatically.
i The hazard warning lamps still operate if the ignition is switched off.
:
;
=
?
High-beam headlamps
Turn signal, right
High-beam flasher
Turn signal, left
X
X
To switch on: turn the SmartKey in the ignition lock to position 1 or 2 or start the engine.
Pull the combination switch in the direction of arrow =.
Headlamp cleaning system
The headlamps are cleaned automatically if the "Wipe with washer fluid" function is operated five times ( Y page 120) while the lights are on and the engine is running. When you switch off the ignition, the automatic headlamp cleaning system is reset and counting is resumed from 0.
Hazard warning lamps
Cornering light function
X
X
To switch on the hazard warning lamps: press button :.
All turn signals flash. If you now switch on a turn signal using the combination switch, only the turn signal lamp on the corresponding side of the vehicle will flash.
To switch off the hazard warning
lamps: press button :.
The cornering light function improves the illumination of the road over a wide angle in the direction you are turning, enabling better visibility in tight bends, for example. It can only be activated when the low-beam headlamps are switched on.
Exterior lighting
115
Active:
R if you are driving at speeds below
25mph (40 km/h) and switch on the turn signal or turn the steering wheel.
R if you are driving at speeds between
25mph (40 km/h) and45mph (70 km/h) and turn the steering wheel.
Not active: if you are driving at speeds above
25 mph (40 km/h) or switch off the turn signals or turn the steering wheel to the straight-ahead position.
The cornering light function may remain lit for a short time, but is automatically switched off after no more than three minutes.
Active light function
The active light function is a system that moves the headlamps according to the steering movements of the front wheels. In this way, relevant areas remain illuminated while driving. This allows you to recognize pedestrians, cyclists and animals.
Active: when the lights are switched on.
vehicle lighting in accordance with the prevailing light, sight and traffic conditions.
The system may be impaired or unavailable when
R visibility is poor, e.g. due to snow, rain, fog, or heavy spray
R the optical sensor area of the windshield is dirty, fogged up, or covered by a sticker for example
The system cannot recognize the following road users:
R Road users without a lighting system of their own, e.g. pedestrians
R Road users with dim lighting of their own, e.g. cyclists
R Road users whose lighting is obstructed, e.g. road users behind a guardrail
R In some seldom cases, even road users with a lighting system of their own may be recognized too late or not at all.
The automatic high-beam headlamps will then not be deactivated or it will be activated in spite of preceding or oncoming road users.
This could endanger you and/or others and cause an accident. Always pay close attention to the traffic situation and switch off the high beam manually if necessary.
Adaptive Highbeam Assist
Important safety notes
G WARNING
The Adaptive Highbeam Assist is only an aid intended to support you while driving. The driver is and remains responsible for proper
Z
116
Exterior lighting
Switching Adaptive Highbeam Assist on/off
You can use this function to set the headlamps to change between low beam and high beam automatically. The system recognizes vehicles with their lights on, either approaching from the opposite direction or traveling in front of your vehicle, and consequently switches the headlamps from high beam to low beam.
The system automatically adapts the lowbeam headlamp range depending on the distance to the other vehicle. Once the system no longer detects any other vehicles, it reactivates the high-beam headlamps.
The system's optical sensor is located behind the windshield near the overhead control panel.
:
;
=
?
High-beam headlamps
Turn signal, right
High-beam flasher
Turn signal, left
X
X
To activate: activate the Adaptive
Highbeam Assist function using the onboard computer ( Y page 221).
Turn the light switch to Ã.
X Press the combination switch beyond the pressure point in the direction of arrow : .
The _ indicator lamp in the multifunction display lights up if it is dark and the light sensor activates the low-beam headlamps.
If you drive at speeds above approximately
28 mph (45 km/h): the headlamp range is set automatically depending on the distance between the vehicle and other road users.
If you are driving at speeds above approximately 35 mph (55 km/h) and no other road users have been detected: the high-beam headlamps are switched on automatically. The K indicator lamp in the instrument cluster also lights up.
If you drive at speeds below approximately
30 mph (45 km/h) or if other road users are identified or if the roads are sufficiently illuminated: the high-beam headlamps are switched off automatically. The K indicator lamp in
Interior lighting
117
X the instrument cluster goes out. The _ indicator lamp in the multifunction display remains lit.
To deactivate: move the combination switch back to its normal position.
The _ indicator lamp in the instrument cluster goes out.
?
A c To switch the front interior lighting on/off p To switch the left-hand front reading lamp on/off
Headlamps fogged up on the inside
The headlamps may fog up on the inside if there is high atmospheric humidity.
X Switch on the light and drive off.
The level of moisture diminishes, depending on the length of the journey and the weather conditions (humidity and temperature).
If the level of moisture does not diminish:
X Have the headlamps checked at a qualified specialist workshop.
Rear-compartment overhead control panel
: p To switch the right-hand reading lamp on/off
; p To switch the left-hand reading lamp on/off
Interior lighting
Overview of interior lighting
Interior lighting control
General notes
In order to prevent the vehicle's battery from discharging, the interior lighting functions are automatically deactivated after some time unless the SmartKey is in position 2 in the ignition lock.
The color and brightness of the ambient lighting may be set using the on-board computer ( Y page 221).
Front overhead control panel
: u To switch the rear interior lighting on/off
;
=
| To switch the automatic interior lighting control on/off p To switch the right-hand front reading lamp on/off
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118
Interior lighting
Automatic interior lighting control Manual interior lighting control
Front overhead control panel
: u To switch the rear interior lighting on/off
;
=
| To switch the automatic interior lighting control on/off p To switch the right-hand reading lamp on/off
?
A c To switch the front interior lighting on/off p To switch the left-hand reading lamp on/off
X To activate/deactivate: press the | button.
When the automatic interior lighting control is activated, the button is flush with the overhead control panel.
The interior lighting automatically switches on if you:
R unlock the vehicle
R open a door
R remove the SmartKey from the ignition lock
The interior light is activated for a short while when the SmartKey is removed from the ignition lock. You can activate this delayed switch-off using the on-board computer
( Y page 222).
Front overhead control panel
: u To switch the rear interior lighting on/off.
;
=
| To switch the automatic interior lighting control on/off p To switch the right-hand reading lamp on/off
?
A c To switch the front interior lighting on/off p To switch the left-hand reading lamp on/off
X
X
X
To switch the front interior lighting on/
off: press the c button.
To switch the rear interior lighting on/
off: press the u button.
To switch the reading lamps on/off: press the p button.
Crash-responsive emergency lighting
The interior lighting is activated automatically if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard warning lamp button.
or
X Lock and then unlock the vehicle using the
SmartKey.
Replacing bulbs
119
Replacing bulbs
Important safety notes
Xenon bulbs
G DANGER
Xenon bulbs carry a high voltage. You could get an electric shock and be seriously or even fatally injured if you touch the electric contacts on Xenon bulbs. Therefore, never remove the cover from Xenon bulbs.
Do not change the Xenon bulbs yourself, but have them replaced at a qualified workshop.
Bulbs and lamps are an important aspect of vehicle safety. You must therefore make sure that these function correctly at all times.
Have the headlamp setting checked regularly.
LED lamps
You can neither replace Xenon bulbs nor LED bulbs. Have LED bulbs changed at a qualified specialist workshop.
Bulbs and lamps are an important aspect of vehicle safety. You must therefore make sure that these function correctly at all times.
Have the headlamp setting checked regularly.
There are bulbs other than Xenon and LED bulbs that you cannot replace. Replace only the bulbs listed ( Y page 119). Have the bulbs that you cannot replace yourself changed at a qualified specialist workshop.
If you require assistance changing bulbs, consult a qualified specialist workshop.
Do not touch the glass tube of new bulbs with your bare hands. Even minor contamination can burn into the glass surface and reduce the service life of the bulbs. Always use a lintfree cloth or only touch the base of the bulb when installing.
Only use bulbs of the correct type.
If the new bulb still does not light up, consult a qualified specialist workshop.
Bulbs and lamps are an important aspect of vehicle safety. You must therefore make sure that these function correctly at all times.
Have the headlamp setting checked regularly.
Overview: changing bulbs/bulb types
You can change the following bulbs. The bulb type can be found in the legend.
Other bulbs
G WARNING
Bulbs and lamps can become very hot. For this reason, allow them to cool down before changing them. Otherwise, you could burn yourself when you touch them.
Keep bulbs out of the reach of children.
Otherwise, they could, for example, damage the bulbs and injure themselves.
Never use a bulb which has been dropped.
Such a bulb may explode and injure you.
Halogen bulbs are pressurized and could explode when you change them, especially if they are very hot. You should therefore wear eye protection and gloves when you are changing them.
Tail lamp
:
Backup lamp: W 16 W
Z
120
Windshield wipers
Changing the rear bulbs
Backup lamp
Lamp cluster
X
X
X
X
Switch off the lights.
Open the trunk.
Reach up into the side paneling and pull downwards until the lamp cluster is easily accessible.
Press the detent of connector ; and pull out connector ;.
X
X
X
X
X Use a suitable tool to loosen and remove four nuts :.
Remove the entire lamp cluster.
Turn bulb holder = counter-clockwise and pull it out.
Pull out the bulb.
Insert the new bulb into bulb holder =.
X Insert bulb holder = into the lamp and turn it clockwise.
X
X
Re-insert the lamp cluster.
Tighten four nuts :.
X Push in connector ; until it engages.
X Insert the side paneling.
Windshield wipers
Switching the windshield wipers on/ off
G WARNING
The windshield will not longer be wiped properly if the wiper blades are worn. This could prevent you from observing the traffic conditions, thereby causing an accident.
Replace the wiper blades twice a year, ideally in spring and fall.
! Do not operate the windshield wipers when the windshield is dry, as this could damage the wiper blades. Moreover, dust that has collected on the windshield can scratch the glass if wiping takes place when the windshield is dry.
If it is necessary to switch on the windshield wipers in dry weather conditions, always use washer fluid when operating the windshield wipers.
! If the windshield wipers leave smears on the windshield after the vehicle has been washed in an automatic car wash, wax or other residues may be the reason for this.
Clean the windshield using washer fluid after washing the vehicle in an automatic car wash.
! Intermittent wiping with rain sensor: due to optical influences and the windshield becoming dirty in dry weather conditions, the windshield wipers may be activated inadvertently. This could then damage the windshield wiper blades or scratch the windshield.
For this reason, you should always switch off the windshield wipers in dry weather.
Windshield wipers
121
Combination switch
1 $ Windshield wipers off
2
3
4
5
B
Ä Intermittent wipe, low (rain sensor set to low sensitivity)
Å Intermittent wipe, high (rain sensor set to high sensitivity)
° Continuous wipe, slow
¯ Continuous wipe, fast
í Single wipe/ î To wipe the windshield using washer fluid
X
X
Switch on the ignition.
Turn the combination switch to the corresponding position.
In the Ä or Å position, the appropriate wiping frequency is set automatically according to the intensity of the rain. In the Å position, the rain sensor is more sensitive than in the Ä position, causing the windshield wipers to wipe more frequently.
! Never open the hood if a windshield wiper arm has been folded away from the windshield.
Never fold a windshield wiper arm without a wiper blade back onto the windshield.
Hold the windshield wiper arm firmly when you change the wiper blade. If you release the windshield wiper arm without a wiper blade and it falls onto the windshield, the windshield may be damaged by the force of the impact.
Mercedes-Benz recommends that you have the wiper blades changed at a qualified specialist workshop.
! To avoid damaging the wiper blades, make sure that you touch only the wiper arm of the wiper.
Replacing the wiper blades
Removing the wiper blades
X Remove the SmartKey from the ignition lock or turn it to position 0 (KEYLESS-GO).
X Fold the wiper arm away from the windshield until it engages.
Replacing the wiper blades
Important safety notes
G WARNING
For safety reasons, switch off the windshield wipers and remove the SmartKey from the ignition lock before changing the wiper blades
(vehicles with KEYLESS-GO: make sure that the on-board electronics are in state 0).
Otherwise, the wiper motor could be switched on suddenly and cause injury.
X Firmly press release knob : and pull the wiper blade upwards from the wiper arm in the direction of the arrow.
Z
122
Windshield wipers
Installing the wiper blades
X Position the new wiper blade in the retainer on the wiper arm and slide it into place in the opposite direction to the arrow.
The wiper blade audibly engages.
X Make sure that wiper blade is seated correctly.
X Fold the wiper arm back onto the windshield.
Problems with the windshield wipers
The windshield wipers are obstructed
X For safety reasons, you should remove the
SmartKey from the ignition lock.
X
X or
X Switch off the engine using the Start/Stop button and open the driver's door.
Remove the cause of the obstruction.
Switch the windshield wipers back on.
The windshield wipers are inoperative
The windshield wiper drive is malfunctioning.
X Select another wiper speed on the combination switch.
X Have the windshield wipers checked at a qualified specialist workshop.
Useful information ............................ 124
Overview of climate control sys-
tems ................................................... 124
Operating the climate control sys-
tems ................................................... 128
Setting the air vents ......................... 133
123
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