warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Monitoring range of the sensors In particular, the detection of obstacles can
be impaired if:
R there is dirt on the sensors or anything else
covering the sensors.
R there is poor visibility, e.g. due to fog, heavy
rain or snow.
R a narrow vehicle, e.g. a motorbike or
bicycle, is traveling in front.
R the road has very wide lanes.
R the road has narrow lanes.
R you are not driving in the middle of the lane.
R there are barriers or similar lane borders.
Vehicles in the monitoring range are then not
indicated. Example (Roadster)
Blind Spot Assist monitors the area up to
10 ft (3m) behind your vehicle and directly
next to your vehicle, as shown in the diagram.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not driving in the middle of their lane. This may
be the case if the vehicles are driving on the
inner side of their lane.
Due to the nature of the system:
R
warnings may be issued in error when
driving close to crash barriers or similar
solid lane borders.
R warnings may be interrupted when driving
alongside particularly long vehicles, e.g.
trucks, for a prolonged time.
The two sensors for Blind Spot Assist are
integrated into the sides of the rear bumper.
Make sure that the bumper is free of dirt, ice
or slush in the vicinity of the sensors. The
radar sensors must not be covered, e.g. by
overhanging loads. Following a severe impact
or in the event of damage to the bumpers,
have the function of the radar sensors
checked at a qualified specialist workshop.
Blind Spot Assist may otherwise not work
properly.
Indicator and warning display :
Yellow indicator lamp/red warning lamp
When Blind Spot Assist is activated, indicator
lamp :in the exterior mirrors lights up
yellow up to a speed of 20 mph (30 km/h). At
speeds above 20 mph(30 km/h) the indicator
lamp goes out and Blind Spot Assist is
operational.
If a vehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
approximately 20 mph(30 km/h), warning
lamp :on the corresponding side lights up
red. This warning is always given when a 142
Driving systemsDriving and parking
ProCarManuals.com
Display messages Possible causes/consequences and
M
MSolutions b
Check Check
Left
LeftLow
LowBeam
Beam
or
Check Right Low Check Right Low
Beam Beam The left or right-hand low-beam headlamp does not light up. In
addition, the high-beam headlamp is also inoperative.
X
Visit a qualified specialist workshop. b
AUTO AUTO
Lamp
LampFunction
Function
Inoperative
Inoperative The light sensor is defective.
USA only:
X
Switch off the daytime running lamps in the on-board computer
(Y page 154).
X Switch the lights on and off using the light switch. b
Check Rear Left Check Rear Left
Turn Signal Turn Signal
or
Check Rear Right Check Rear Right
Turn Signal Turn Signal The LEDs in the rear left or right-hand indicator lamp do not light
up.
X
Visit a qualified specialist workshop. b
Check Left Mirror Check Left Mirror
Turn Signal Turn Signal
or
Check Check
Right
RightMirror
Mirror
Turn Signal
Turn Signal None of the LEDs in the left or right-hand exterior mirrors light up.
X
Visit a qualified specialist workshop. b
Check Front Left Check Front Left
Turn Signal Turn Signal
or
Check Front Right Check Front Right
Turn Signal Turn Signal The LEDs in the front left or right-hand indicator lamp do not light
up.
X
Visit a qualified specialist workshop. b
Check Check
Center
Center Brake
Brake
Lamp
Lamp None of the LEDs in the high-mounted brake lamp light up.
X
Visit a qualified specialist workshop. 170
Displays and operationOn-board compu
ter and displays
ProCarManuals.com
Display messages Possible causes/consequences and
M
MSolutions 4
Check Engine Oil Check Engine Oil
Level Level
(Add 1
(Add 1 Liter)
Liter) The oil level is too low.
X
Check the oil level (Y page 215).
X If necessary, add engine oil.
X Have the engine checked for leaks if you need to add engine oil
more often than usual.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
www.mbusa.com (USA only).
! The oil level is too low. Avoid long journeys with too little engine
oil. There is a risk of engine damage.
The display messages and the corresponding symbol that
indicate that the oil level is too low must not be ignored. 4
Engine Oil Level Engine Oil Level
Too High Too High You have added too much engine oil. The engine or catalytic
converter may be damaged.
X
Siphon off excess engine oil until it is at the specified level.
Observe the legal requirements. 4
Engine Oil Level Engine Oil Level
Cannot Be Measured Cannot Be Measured The measuring system is faulty.
X
Visit a qualified specialist workshop. 4
Engine Oil Engine Oil
Pressure Control Pressure Control
See Operator's See Operator's
Manual Manual The oil pressure sensor has reported a malfunction.
The oil pressure control is in emergency mode.
The engine lubrication is guaranteed.
X
Visit a qualified specialist workshop. 4
Engine Oil Engine Oil
Pressure Stop Pressure Stop
Vehicle Turn Vehicle Turn
Engine Off Engine Off
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Check the engine oil level (Y page 215) and top up if necessary.
X If there are visible signs of oil loss from the vehicle, consult a
qualified specialist workshop. C There is only a small amount of fuel in the fuel tank.
X
Refuel at the nearest gas station. 8
Fuel Level Low Fuel Level Low The fuel level has fallen below the reserve range.
X
Refuel at the nearest gas station. Displays and operation
175On-board computer and displays Z
ProCarManuals.com
Display messages Possible causes/consequences and
M
MSolutions Blind Spot Assist
Blind Spot Assist
Inoperative Inoperative Blind Spot Assist is defective.
The yellow
9indicator lamps also light up in the exterior
mirrors.
X Visit a qualified specialist workshop. Blind Spot Assist Blind Spot Assist
Currently Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual Blind Spot Assist is temporarily inoperative if:
R
the sensors are dirty.
R its function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior
mirrors.
Blind Spot Assist is operational again and the display message
disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects that the sensors are fully available again.
R the radar sensor system is back within the operating
temperature range.
If the display message continues to be displayed:
X Clean the sensors (Y page 224).
X Restart the engine. Tires
G
WARNING
Tires with tire pressures that are too low or too high are associated with the following hazards:
R they can burst, in particular if the vehicle is heavily laden or when driven at high speeds.
R the tires can wear excessively and/or unevenly, which can severely impair tire traction.
R the driving, steering and braking characteristics may be severely impaired.
There is a risk of accident.
Follow recommended tire inflation pressures and check the pressure of all the tires including the
spare wheel:
R monthly, at least
R if the load changes
R before beginning a long journey
R under different operating conditions, e.g. off-road driving
If necessary, correct the tire pressure. Displays and operation
177On-board computer and displays Z
ProCarManuals.com
Display messages Possible causes/consequences and
M
MSolutions Tire
Tire
Press.
Press. Monitor
Monitor
Inoperative
Inoperative The tire pressure monitor is faulty.
X
Visit a qualified specialist workshop. Tire Pressure Tire Pressure
Monitor Monitor
Inoperative No Inoperative No
Wheel Sensors Wheel Sensors The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
X
Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes. Check Check
Tires
Tires The tire pressure in one or more tires has dropped significantly.
The wheel position is shown in the multifunction display.
A warning tone also sounds.
G WARNING
Insufficient tire pressure can cause the tires to burst. the driving
characteristics, as well as steering and braking, may be greatly
impaired. There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Correct the tire pressure (Y page 255).
X If necessary, change the wheel (Y page 269).Tire Tire
Press.
Press. Warning
Warning
Caution Tire
Caution Tire
Malfunction Malfunction The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
A warning tone also sounds.
G WARNING
Insufficient tire pressure can cause the tires to burst. the driving
characteristics, as well as steering and braking, may be greatly
impaired. There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X If necessary, change the wheel (Y page 269).Correct Correct
Tire Pressure Tire Pressure The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X
Check the tire pressures at the next opportunity. If necessary,
correct the tire pressure (Y page 255).TirePress. TirePress.
Sensor(s)Missing Sensor(s)Missing There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.
X
Have the faulty tire pressure sensor replaced at a qualified
specialist workshop. 178
Displays and operationOn-board compu
ter and displays
ProCarManuals.com
Display messages Possible causes/consequences and
M
MSolutions Tire
Tire
Press.
Press. Monitor
Monitor
Currently
Currently
Unavailable Unavailable Due to a source of radio interference, no signals can be received
from the wheel sensors. The tire pressure monitor is temporarily
malfunctioning.
X
Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved. h
Tire Press. Tire Press.
Warning Caution Warning Caution
Tire Malfunction Tire Malfunction The tire pressure in one or more tires has dropped suddenly. A
warning tone also sounds.
G WARNING
Insufficient tire pressure can cause the tires to burst. the driving
characteristics, as well as steering and braking, may be greatly
impaired. There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Repair the faulty tire or change the wheel ( Ypage 269). h
Check Check
Tire
TirePressure
Pressure The tire pressure in one or more tires has dropped significantly. A
warning tone also sounds.
G WARNING
Insufficient tire pressure can cause the tires to burst. the driving
characteristics, as well as steering and braking, may be greatly
impaired. There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Correct the tire pressure (Y page 255).
X If necessary, repair the faulty tire or change the wheel
(Y page 269). Displays and operation
179On-board computer and displays Z
ProCarManuals.com
!
Hold the wiper arm securely when folding
back. The windshield could be damaged if
the wiper arm smacks against it suddenly.
Cleaning the exterior lighting X
Clean the plastic lenses of the exterior
lighting using a wet sponge and a mild
cleaning agent, e.g. Mercedes-Benz car
shampoo or cleaning cloths.
! Only use cleaning agents or cleaning
cloths which are suitable for plastic light
lenses. Unsuitable cleaning agents or
cleaning cloths could scratch or damage
the plastic light lenses.
Cleaning the mirror turn signals !
Only use cleaning agents or cleaning
cloths that are suitable for plastic lenses.
Unsuitable cleaning agents or cleaning
cloths could scratch or damage the plastic
lenses of the mirror turn signals.
X Clean the plastic lenses of the mirror turn
signals in the exterior mirror housing using
a wet sponge and a mild cleaning agent,
e.g. Mercedes-Benz car shampoo or
cleaning cloths.
Cleaning the sensors !
When cleaning the sensors with a power
washer, maintain a distance between the
vehicle and the nozzle of the power washer
of at least 11.8 in (30 cm). Information
about the correct distance is available from
the equipment manufacturer. X
Clean sensors :of the driving systems
with water, car shampoo and a soft cloth.
Cleaning the rear view camera X
Use clear water and a soft cloth to clean
camera lens :.
! Do not clean the camera lens and the area
around the rear view camera with a power
washer.
Cleaning the exhaust pipes !
Do not clean the exhaust pipe with acid-
based cleaning agents such as sanitary
cleansers or wheel cleaners.
X Clean the exhaust pipe with a chrome care
product tested and approved by Mercedes-
Benz. 224
CareMaintenance and care
ProCarManuals.com
The sticker must be attached on the
instrument cluster where it will be easily seen
by the driver.
Vehicle handling characteristics of a TIREFIT
repaired tire may change. Adapt your driving
accordingly.
X Stop after driving for approximately ten
minutes and check the tire pressure with
the tire inflation compressor.
i On tires that are equipped with a tire
pressure sensor (tire pressure monitor),
the use of sealant can lead to malfunction
messages and incorrect displays.
Therefore, use pressure gauge Bin the
TIREFIT kit to check and correct the tire
pressure. G
WARNING
If tire inflation pressure has fallen below
130 kPa (1.3 bar/26 psi) do not continue to
drive the vehicle.
Park your vehicle safely away from the
roadway and contact the nearest authorized
Mercedes-Benz Center or Roadside
Assistance.
Have the damaged tire replaced.
X Correct the tire pressure if it is still at least
130 kPa (1.3 bar/20 psi) (for the values,
see the Tire and Loading Information
placard on the driver's side B-pillar or tire
pressure table on the fuel filler flap).
To increase the tire pressure: switch on
the tire inflation compressor.
To reduce the tire pressure: open release
screw C.
! The manufacturer does not guarantee
that all tire damage can be repaired using
the TIREFIT kit, particularly in the case of
cuts and punctures with a diameter of more
than four millimeters or on the sidewall. The
manufacturer is not responsible for
damage caused by inappropriate use of the
TIREFIT kit. X
Drive to the nearest workshop and have the
tire changed there.
X Have the tire sealant bottle replaced as
soon as possible at a qualified specialist
workshop, e.g. at an authorized Mercedes-
Benz Center. H
Environmental note
Have the used tire sealant bottle disposed of
professionally, e.g. at an authorized
Mercedes-Benz Center.
X Have the TIREFIT kit replaced every four
years at a qualified specialist workshop,
e.g. an authorized Mercedes-Benz Center. Changing a wheel and mounting the
spare wheel
Preparing the vehicle X
Prepare the vehicle as described
(Y page 229).
X Bring the wheels into the straight-ahead
position.
X Take the following objects from the left-
hand stowage compartment and the left-
hand stowage space in the trunk:
R
lug wrench
R folding wheel chock
R jack
R alignment bolt
X Secure the vehicle to prevent it from rolling
away.
Securing the vehicle to prevent it from
rolling away G
WARNING
Only jack up the vehicle on level ground or on
slight inclines/declines. The vehicle could
otherwise fall off the jack and injure you or
others. 232
Flat tireBreakdown assistance
ProCarManuals.com