Display messages Lane Keeping Assist Currently Unavailable See Operator's ManualorActive Lane Keeping Assist Currently Unavailable See Operator's Manual
Lane Keeping Assist InoperativeorActiv e Lane Keeping Assist Inoperative
Possible causes/consequences and M Solutions Lane Keeping Assist or Active Lane Keeping Assist is deactivated and temporarily inoperative. Possible causes are: Rthe windshield in the camera's field of vision is dirty. Rvisibility is impaired due to heavy rain, snow or fog. Rthere are no lane markings for a longer period. Rthe lane markings are worn, dark or covered, e.g. by dirt or snow. When the causes stated above no longer apply, the display message disappears. Lane Keeping Assist or Active Lane Keeping Assist is operational again. If the display message does not disappear: X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182). X Clean the windshield.
Lane Keeping Assist or Active Lane Keeping Assist is defective. X Visit a qualified specialist workshop.
276 Display messages
Display messages Blind Spot Assist Currently Unavailable See Operator's ManualorActive Blind Spot Assist Currently Unavailable See Operator's Manual
Blind Spot Assist InoperativeorActiv e Blind Spot Assist Inoperative Park Assist Canceled
Possible causes/consequences and M Solutions Blind Spot Assist or Active Blind Spot Assist is temporarily inoperative. Possible causes are: Rthe sensors are dirty. Rfunction is impaired due to heavy rain or snow. Rthe radar sensor system is outside the operating temperature
range.
Rthe 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 9 indicator lamps also light up in the exterior mirrors. When the causes stated above no longer apply, the display message disappears. Blind Spot Assist or Active Blind Spot Assist is operational again. If the display message does not disappear: X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182). X Clean the sensors (Y page 346). X Restart the engine.
Blind Spot Assist or Active Blind Spot Assist is defective. The yellow 9 indicator lamps also light up in the exterior mirrors. X Visit a qualified specialist workshop. The driver's door is open and the driver's seat belt has not been fastened. X Repeat the parking process with the seat belt fastened and the
driver's door closed.
You have inadvertently touched the multifunction steering wheel while steering intervention was active. X While steering intervention is active, make sure that the
multifunction steering wheel is not touched unintentionally.
The vehicle has started to skid and ESP® has intervened. X Use Active Parking Assist again later (Y page 212).
Display messages
277
Display messages Park Assist Inoperative
Possible causes/consequences and M Solutions You have just carried out a large number of turning or parking maneuvers. Active Parking Assist will become available again after approximately ten minutes (Y page 212). X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Switch off and restart the engine. If the display message continues to be displayed: X Visit a qualified specialist workshop. PARKTRONIC is defective. X Visit a qualified specialist workshop. The vehicle is parked. A warning tone also sounds. The display message disappears automatically.
Park Assist Finished DISTRONIC PLUS Off DISTRONIC PLUS has been deactivated (Y page 191). DISTRONIC PLUS Now Available
DISTRONIC PLUS is operational again after having been temporarily unavailable. You can now reactivate DISTRONIC PLUS (Y page 191).
If it was not deactivated by the driver, a warning tone also sounds.
278 Display messages
Display messages DISTRONIC PLUS Currently Unavailable See Operator's Manual
DISTRONIC PLUS Inoperative
DISTRONIC PLUS Passive
DISTRONIC PLUS - - - mph
Possible causes/consequences and M Solutions DISTRONIC PLUS is temporarily inoperative. DISTRONIC PLUS Steering Assist is also temporarily inoperative. Possible causes are: Rfunction is impaired due to heavy rain or snow. Rthe sensors in the radiator grill and the bumper are dirty. Rthe 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. Rthe system is outside the operating temperature range. Rthe on-board voltage is too low. A warning tone also sounds. When the causes stated above no longer apply, the display message disappears. DISTRONIC is operational again. If the display message does not disappear: X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182). X Clean the sensors in the radiator grill and the bumper
(Y page 346).
X Restart the engine. DISTRONIC PLUS is defective. The following may have also failed: RBAS PLUS (Brake Assist System PLUS) RPRE-SAFE® Brake RDISTRONIC PLUS Steering Assist A warning tone also sounds. X Visit a qualified specialist workshop. You have depressed the accelerator pedal. DISTRONIC PLUS is no longer controlling the speed of the vehicle. X Remove your foot from the accelerator pedal. An activation condition for DISTRONIC PLUS is not fulfilled. X Check the activation conditions for DISTRONIC PLUS
(Y page 191).
Display messages
279
Display messages DTR+: Steering Assist. Currently Unavailable See Operator's Manual
DTR+: Steering Assist. Inoperative
Cruise Control Inoperative
Cruise Control - - - mph
Possible causes/consequences and M Solutions DISTRONIC PLUS Steering Assist is temporarily inoperative. Possible causes are: Rthe windshield in the camera's field of vision is dirty. Rvisibility is impaired due to heavy rain, snow or fog. Rthere are no lane markings for a longer period. Rthe lane markings are worn, dark or covered, e.g. by dirt or snow. When the causes stated above no longer apply, the display message disappears. DISTRONIC PLUS Steering Assist is operational again. If the display message does not disappear: X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182). X Clean the windshield.
DISTRONIC PLUS Steering Assist is faulty. However, the DISTRONIC PLUS functions are still available. A warning tone also sounds. X Visit a qualified specialist workshop. Cruise control is defective. A warning tone also sounds. X Visit a qualified specialist workshop.
A condition for activating cruise control has not been fulfilled. You have tried to store a speed below 20 mph (30 km/h), for example. X If conditions permit, drive faster than 20 mph (30 km/h) and
store the speed.
X Check the activation conditions for cruise control
(Y page 189).
280 Display messages
Tires Display messages Rectify Tire Pressure
Check Tires
Possible causes/consequences and M Solutions 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 (Y page 380). X If necessary, correct the tire pressure. X Restart the tire pressure monitor (Y page 383). The tire pressure in one or more tires has dropped significantly. The wheel position is displayed in the multifunction display. A warning tone also sounds. G WARNING With tire pressures which are too low, there is a risk of the following hazards: Rthey may burst, especially as the load and vehicle speed
increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe 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 Secure the vehicle against rolling away (Y page 182). X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 354).
X Check the tire pressure (Y page 380). X If necessary, correct the tire pressure.
Display messages
281
Display messages Warning Tire Malfunction
Tire Press. Monitor Currently Unavailable
TirePress. Sensor(s) Missing
Tire Pressure Monitor Inoperative No Wheel Sensors
Tire Press. Monitor Inoperative
Possible causes/consequences and M Solutions The tire pressure in one or more tires has dropped suddenly. The wheel position is shown in the multifunction display. G WARNING If you drive with a flat tire, there is a risk of the following hazards: Ra flat tire affects the ability to steer or brake the vehicle. Ryou could lose control of the vehicle. Rcontinued driving with a flat tire will cause excessive heat build-
up and possibly a fire.
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 Secure the vehicle against rolling away (Y page 182). X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 354).
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.
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.
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.
The tire pressure monitor is faulty. X Visit a qualified specialist workshop.
282 Display messages
Vehicle Display messages Apply Brake to Shift from 'P'
Risk of Vehicle Rolling Away Vehicle Not in 'P'
Service Required Do Not Shift Gears Visit Dealer
Possible causes/consequences and M Solutions You have attempted to move the transmission selector lever to position D, R or N without depressing the brake pedal. X Depress the brake pedal.
The driver's door is open and the transmission is in position R, N or D. A warning tone also sounds. X Shift the transmission to position P. X Secure the vehicle against rolling away (Y page 182). You cannot change the transmission position due to a malfunction. A warning tone also sounds. If transmission position D is selected: X Drive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R, N or P is selected: X Notify a qualified specialist workshop or breakdown service. The vehicle is moving. X Pull over and stop the vehicle safely as soon as possible, paying
Only Shift to 'P' when Vehicle is Stationary N Sedan: the trunk lid is open.
attention to road and traffic conditions.
X Shift the transmission to position P.
X Close the trunk lid.
A Wagon: the tailgate is open.
G WARNING When the engine is running, exhaust gases can enter the vehicle interior if the tailgate is open. There is a risk of poisoning. X Close the tailgate.
Display messages
283
Display messages M or ? The hood is open. A warning tone also sounds.
Possible causes/consequences and M Solutions
G WARNING The open hood may block your view when the vehicle is in motion. There is a risk of an accident. X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182). X Close the hood.
C At least one door is open. A warning tone also sounds.
X Close all the doors.
Rear Left Backrest not Latched or Rear Right Backrest not Latched Ð Power Steering Malfunction See Operator's Manual
Sedan with through-loading feature in the rear bench seat: The backrest in the rear is not engaged on the left-hand and/or right-hand side. A warning tone also sounds. X Push the backrest back until it engages.
The power steering is malfunctioning. A warning tone also sounds. G WARNING You will need to use more force to steer. There is a risk of an accident. X Check whether you are able to apply the extra force required. X If you are able to steer safely: carefully drive on to a qualified
specialist workshop.
X If you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop.
Phone No Service
Your vehicle is outside the network provider's transmitter/ receiver range. X Wait until the mobile phone operational readiness symbol
appears in the multifunction display.
¥ Check Washer Fluid
The washer fluid level in the washer fluid reservoir has dropped below the minimum. X Add washer fluid (Y page 340).
284 Display messages
SmartKey Display messages  Key Does Not Belong to Vehicle  Take Your Key from Ignition  Obtain a New Key  Replace Key Battery  Don't Forget Your Key
 Key Not Detected (red display message)
Possible causes/consequences and M Solutions You have put the wrong SmartKey in the ignition lock. X Use the correct SmartKey.
The SmartKey is in the ignition lock. X Remove the SmartKey.
The SmartKey needs to be replaced. X Visit a qualified specialist workshop.
The batteries of the KEYLESS-GO key are discharged. X Change the batteries (Y page 85).
The display message is shown for a maximum of 60 seconds and is only a reminder. You have opened the driver's door with the engine switched off. The KEYLESS-GO key is not in the ignition lock. X Remember to take the KEYLESS-GO key with you when you
leave the vehicle.
The KEYLESS-GO key is not in the vehicle. A warning tone also sounds. If the engine is switched off, you can no longer lock the vehicle centrally or start the engine. X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182). X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running because there is interference from a strong source of radio waves. A warning tone also sounds. X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182). X Operate the vehicle with the SmartKey in the ignition lock.
Indicator and warning lamps in the instrument cluster
285
Display messages  Key Not Detected (white display message)
 Key Detected in Vehicle  Remove 'Start' Button and Insert Key
 Close Doors to Lock Vehicle
Possible causes/consequences and M Solutions The KEYLESS-GO key cannot be detected at present. X Change the location of the SmartKey with the KEYLESS-GO
functions in the vehicle.
If the KEYLESS-GO key is still not detected: X Operate the vehicle with the SmartKey in the ignition lock. The KEYLESS-GO key has been detected inside the vehicle during locking. X Remove the KEYLESS-GO key from the vehicle.
The KEYLESS-GO key can continuously not be detected. KEYLESS-GO is temporarily malfunctioning or is defective. A warning tone also sounds. X Insert the SmartKey into the ignition lock and turn it to the
desired position.
X Visit a qualified specialist workshop. At least one door is open. A warning tone also sounds. X Close all doors and lock the vehicle again.
Indicator and warning lamps in the instrument cluster Safety Seat belts
Possible causes/consequences and M Solutions The seat belt warning lamp reminds the driver and front passenger to fasten their seat belts. X Fasten your seat belt (Y page 56).
The driver's seat belt is not fastened. X Fasten your seat belt (Y page 56).
The warning tone ceases.
Problem
ü After starting the engine, the red seat belt warning lamp lights up for 6 seconds.
ü After starting the engine, the red seat belt warning lamp lights up. In addition, a warning tone sounds for up to six seconds.
286
Indicator and warning lamps in the instrument cluster
Problem
ü The red seat belt warning lamp lights up after the engine starts, as soon as the driver's or the front-passenger door is closed.
Possible causes/consequences and M Solutions The driver or front passenger has not fastened their seat belt. X Fasten your seat belt (Y page 56).
The warning lamp goes out.
There are objects on the front-passenger seat. X Remove the objects from the front-passenger seat and stow
them in a secure place. The warning lamp goes out.
ü The red seat belt warning lamp flashes and an intermittent audible warning sounds.
The driver or front passenger has not fastened their seat belt. You are driving faster than 15 mph (25 km/h) or have briefly driven faster than 15 mph (25 km/h). X Fasten your seat belt (Y page 56).
The warning lamp goes out and the intermittent warning tone ceases.
There are objects on the front-passenger seat. You are driving faster than 15 mph (25 km/h) or have briefly driven faster than 15 mph (25 km/h). X Remove the objects from the front-passenger seat and stow
them in a secure place. The warning lamp goes out and the intermittent warning tone ceases.
Indicator and warning lamps in the instrument cluster
287
Safety systems
Problem $ (USA only) J (Canada only) The red brake system warning lamp comes on while the vehicle is moving. A warning tone also sounds. $ (USA only) J (Canada only) The red brake system warning lamp comes on while the engine is running. A warning tone also sounds.
Possible causes/consequences and M Solutions You are driving with the parking brake applied. X Release the parking brake.
The warning lamp goes out and the warning tone ceases.
G WARNING The brake boosting effect is malfunctioning and the braking characteristics may be affected. There is a risk of an accident. X Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions. Do not continue driving under any circumstances.
X Secure the vehicle against rolling away (Y page 182). X Consult a qualified specialist workshop. X Observe the additional display messages in the multifunction
display.
$ (USA only) J (Canada only) The red brake system warning lamp comes on while the engine is running. A warning tone also sounds.
There is not enough brake fluid in the brake fluid reservoir. G WARNING The braking effect may be impaired. There is a risk of an accident. X Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions. Do not continue driving under any circumstances.
X Secure the vehicle against rolling away (Y page 182). X Do not add brake fluid. Adding more will not remedy the
malfunction.
X Consult a qualified specialist workshop. X Observe the additional display messages in the multifunction
display.
288
Indicator and warning lamps in the instrument cluster
Problem
The yellow ABS warning lamp is lit while the engine is running.
Possible causes/consequences and M Solutions ABS (Anti-lock Braking System) is deactivated due to a malfunction. For this reason, BAS (Brake Assist), BAS PLUS, COLLISION PREVENTION ASSIST, ESP® (Electronic Stability Program), PRE-SAFE®, PRE-SAFE® Brake, the HOLD function and hill start assist are also deactivated, for example. ATTENTION ASSIST is deactivated. G WARNING The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. The steerability and braking characteristics may be severely affected. The braking distance in an emergency braking situation can increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Observe the additional display messages in the multifunction
display.
X Drive on carefully. X Visit a qualified specialist workshop. If the ABS control unit is faulty, there is also a possibility that other systems, such as the navigation system or the automatic transmission, will not be available.
Indicator and warning lamps in the instrument cluster
289
Problem
The yellow ABS warning lamp is lit while the engine is running. A warning tone also sounds.
$ (USA only) J (Canada only) ÷å! The red brake warning lamp, the yellow ESP® and ESP® OFF warning lamps and the yellow ABS warning lamp are lit while the engine is running.
Possible causes/consequences and M Solutions EBD is not available due to a malfunction. Therefore, ABS, BAS, BAS PLUS, COLLISION PREVENTION ASSIST, ESP®, PRE-SAFE®, PRE-SAFE® Brake, the HOLD function and hill start assist, for example, are also unavailable. ATTENTION ASSIST is deactivated. G WARNING The brake system continues to function normally, but without the functions listed above. The front and rear wheels could therefore lock if you brake hard, for example. The steerability and braking characteristics may be severely affected. The braking distance in an emergency braking situation can increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Observe the additional display messages in the multifunction
display.
X Drive on carefully. X Visit a qualified specialist workshop.
ABS and ESP® are not available due to a malfunction. Therefore, BAS, BAS PLUS, COLLISION PREVENTION ASSIST, EBD, PRE-SAFE®, PRE-SAFE® Brake, the HOLD function and hill start assist, for example, are also unavailable. ATTENTION ASSIST is deactivated. G WARNING The brake system continues to function normally, but without the functions listed above. The front and rear wheels could therefore lock if you brake hard, for example. The steerability and braking characteristics may be severely affected. The braking distance in an emergency braking situation can increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Observe the additional display messages in the multifunction
display.
X Drive on carefully. X Visit a qualified specialist workshop.
290
Indicator and warning lamps in the instrument cluster
Problem
÷ The yellow ESP® warning lamp flashes while the vehicle is in motion.
å The yellow ESP® OFF warning lamp is lit while the engine is running.
AMG vehicles only: The yellow SPORT handling mode warning lamp is lit while the engine is running.
Possible causes/consequences and M Solutions ESP® or traction control has intervened because there is a risk of skidding or at least one wheel has started to spin. Cruise control or DISTRONIC PLUS is deactivated. X When pulling away, only depress the accelerator pedal as far as
necessary.
X Ease off the accelerator pedal while the vehicle is in motion. X Adapt your driving style to suit the road and weather conditions. X Do not deactivate ESP®.
For exceptions, see: (Y page 72).
ESP® is deactivated. G WARNING If ESP® is switched off, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Reactivate ESP®.
For exceptions, see: (Y page 72).
X Adapt your driving style to suit the road and weather conditions. If ESP® cannot be activated: X Drive on carefully. X Have ESP® checked at a qualified specialist workshop.
SPORT handling mode is activated. G WARNING When SPORT handling mode is switched on, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Only switch to SPORT handling mode in accordance with the conditions described in the "Activating/deactivating SPORT handling mode" section (Y page 74).
Indicator and warning lamps in the instrument cluster
291
Problem
÷å The yellow ESP® and ESP® OFF warning lamps are lit while the engine is running.
The red SRS warning lamp is lit while the engine is running.
Possible causes/consequences and M Solutions ESP®, BAS, BAS PLUS, COLLISION PREVENTION ASSIST, PRE-SAFE®, PRE-SAFE® Brake, the HOLD function and hill start assist are unavailable due to a malfunction. ATTENTION ASSIST is deactivated. G WARNING The brake system continues to function normally, but without the functions listed above. The braking distance in an emergency braking situation can thus increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Observe the additional display messages in the multifunction
display.
X Drive on carefully. X Visit a qualified specialist workshop. There is a malfunction in the SRS (Supplemental Restraint System). G WARNING The air bags or Emergency Tensioning Devices may either be triggered unintentionally or, in the event of an accident, may not be triggered. There is an increased risk of injury. X Drive on carefully. X Have SRS checked at a qualified specialist workshop
immediately.
For further information about SRS, see (Y page 41).
292
Indicator and warning lamps in the instrument cluster
Engine Problem
The yellow Check Engine warning lamp lights up while the engine is running.
The yellow reserve fuel warning lamp lights up while the engine is running.
The yellow reserve fuel warning lamp flashes while the vehicle is in motion. In addition, the ; Check Engine warning lamp may light up.
Possible causes/consequences and M Solutions There may be a malfunction, for example: Rin the engine management Rin the fuel injection system Rin the exhaust system Rin the ignition system (for vehicles with a gasoline engine) Rin the fuel system The emission limit values may be exceeded and the engine may be running in emergency mode. X Have the vehicle checked as soon as possible at a qualified
specialist workshop.
i In some states, you must immediately visit a qualified
specialist workshop as soon as the yellow Check Engine warning lamp lights up. This is due to the legal requirements in effect in these states. If in doubt, check whether such legal regulations apply in the state in which you are currently driving.
Vehicles with a diesel engine: the fuel tank has been run dry (Y page 179). X Start the engine three to four times after refueling.
If the yellow Check Engine warning lamp goes out, emergency running mode is canceled. The vehicle need not be checked.
The fuel level has dropped into the reserve range. X Refuel at the nearest gas station.
The fuel system pressure is too low. The fuel filler cap is not closed correctly or the fuel system is leaking. X Check that the fuel filler cap is correctly closed. X If the fuel filler cap is not correctly closed: close the fuel filler
X If the fuel filler cap is closed: visit a qualified specialist
cap.
workshop.
Indicator and warning lamps in the instrument cluster
293
Problem
The red coolant warning lamp lights up while the engine is running and the coolant temperature gauge is at the start of the scale.
Possible causes/consequences and M Solutions The temperature sensor for the coolant temperature gauge is defective. The coolant temperature is no longer being monitored. There is a risk of engine damage if the coolant temperature is too high. X Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions. Do not continue driving under any circumstances.
X Secure the vehicle against rolling away (Y page 182). X Consult a qualified specialist workshop.
294
Indicator and warning lamps in the instrument cluster
Problem
The red coolant warning lamp comes on while the engine is running.
Possible causes/consequences and M Solutions The coolant level is too low. If the coolant level is correct, the airflow to the engine radiator may be blocked or the electric engine radiator fan may be malfunctioning. The coolant is too hot and the engine is no longer being cooled sufficiently. X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182). X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 339).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
The red coolant warning lamp comes on while the engine is running. A warning tone also sounds.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the coolant temperature is under 248 ‡ (120 †). Otherwise, the engine could be damaged.
X Drive to the nearest qualified specialist workshop. X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.
The coolant temperature has exceeded 248 ‡ (120 †). The airflow to the engine radiator may be blocked or the coolant level may be too low. G WARNING The engine is not being cooled sufficiently and may be damaged. Do not drive when your engine is overheated. This can cause some fluids which may have leaked into the engine compartment to catch fire. Steam from the overheated engine can also cause serious burns which can occur just by opening the hood. There is a risk of injury. X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182).
Indicator and warning lamps in the instrument cluster
295
Problem
Possible causes/consequences and M Solutions X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 339).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X At coolant temperatures under 248 ‡ (120 †), drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.
Driving systems Problem
· The red distance warning lamp lights up while the vehicle is in motion.
· The red distance warning lamp lights up while the vehicle is in motion. A warning tone also sounds.
Possible causes/consequences and M Solutions The distance to the vehicle in front is too small for the speed selected. X Increase the distance.
You are approaching a vehicle or a stationary obstacle in your line of travel at too high a speed. X Be prepared to brake immediately. X Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
Further information on PRE-SAFE® Brake (Y page 76). For further information on the distance warning function of COLLISION PREVENTION ASSIST: (Y page 70).
296
Indicator and warning lamps in the instrument cluster
Tires Problem
The yellow tire pressure monitor warning lamp (pressure loss/ malfunction) is lit.
The yellow tire pressure monitor warning lamp (pressure loss/ malfunction) flashes for approximately one minute and then remains lit.
Possible causes/consequences and M Solutions The tire pressure monitor has detected a loss of pressure in at least one of the tires. G WARNING With tire pressures which are too low, there is a risk of the following hazards: Rthey may burst, especially as the load and vehicle speed
increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe 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 Secure the vehicle against rolling away (Y page 182). X Observe the additional display messages in the multifunction
display.
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 354).
X Check the tire pressure (Y page 380). X If necessary, correct the tire pressure. The tire pressure monitor is faulty. G WARNING The system is possibly unable to recognize or register low tire pressure. There is a risk of an accident. X Observe the additional display messages in the multifunction
display.
X Visit a qualified specialist workshop.
Useful information ............................ 298
Stowage areas .................................. 298
Features ............................................. 316
297
298 Stowage areas
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 safety- related systems and functions.
i Read the information on qualified specialist workshops: (Y page 26).
Stowage areas Loading guidelines G WARNING If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip over or be flung around and thereby hit vehicle occupants. There is a risk of injury, particularly in the event of sudden braking or a sudden change in direction. Always store objects so that they cannot be flung around. Secure objects, luggage or loads against slipping or tipping before the journey. G WARNING Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the vehicle interior if the trunk lid/tailgate is open when the engine is running, especially if the vehicle is in motion. There is a risk of poisoning. Always switch off the engine before opening the trunk lid/tailgate. Never drive with the trunk lid/tailgate open.
The handling characteristics of a laden vehicle are dependent on the distribution of the load within the vehicle. For this reason, you should observe the following notes when transporting a load: RNever exceed the maximum permissible
gross vehicle weight or the gross axle weight rating of the vehicle (including occupants). The values are specified on the vehicle identification plate on the B-pillar of the driver's door.
RThe trunk/cargo compartment is the
preferred place to store objects.
RPosition heavy loads as far forwards as possible and as low down in the trunk/ cargo compartment as possible.
RThe load must not protrude above the
upper edge of the seat backrests.
RAlways place the load against the rear or front seat backrests. Make sure that the seat backrests are securely locked into place.
RAlways place the load behind unoccupied
seats if possible.
RUse the cargo tie down rings and the parcel
nets to transport loads and luggage.
RUse cargo tie-down rings and fastening materials appropriate for the weight and size of the load.
RWhen transporting objects in the cargo
compartment, the combined cargo cover and net must always be installed (cargo compartment cover and cargo net).
RSecure the load with sufficiently strong and wear-resistant tie-downs. pad sharp edges for protection.
Stowage space Important safety notes G WARNING If objects in the passenger compartment are stowed incorrectly, they can slide or be thrown around and hit vehicle occupants.
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299
The glove box can only be locked and unlocked using the mechanical key. X To lock: insert the mechanical key into the lock and turn it 90° clockwise to position 2.
X To unlock: insert the mechanical key into the lock and turn it 90° counter-clockwise to position 1.
Eyeglasses compartment
There is a risk of injury, particularly in the event of sudden braking or a sudden change in direction. RAlways stow objects so that they cannot be
thrown around in such situations.
RAlways make sure that objects do not
protrude from stowage spaces, parcel nets or stowage nets.
RClose the lockable stowage spaces while
driving.
RAlways stow and secure heavy, hard, pointed, sharp-edged, fragile or bulky objects in the trunk/cargo compartment.
Observe the loading guidelines (Y page 298).
Glove box
X To open: pull handle : and open glove box
flap ;.
X To close: fold glove box flap ; upwards
until it engages.
i The glove box can be ventilated
(Y page 156).
There is a compartment to stow eyeglasses in the headliner on the driver's side. X To open: pull down eyeglasses compartment : by the handle.
Stowage compartment in the center console
All models except AMG vehicles
300 Stowage areas
X To open: slide cover : forwards until it
engages.
X To close: briefly press cover : at the
front. Cover : moves back.
i A stowage compartment is located under
the cup holder at the front of the center console.
Stowage compartment under the armrest
AMG vehicles X To open: press left-hand button ; or right-
hand button :. The stowage compartment opens.
equipment, e.g. for an iPod® or MP3 player (see the separate COMAND Operating Instructions).
Stowage compartment under the front seats G WARNING If you exceed the maximum load for the stowage compartment, the cover may not be able to restrain the items. Items may be thrown out of the stowage compartment and hit vehicle occupants. There is a risk of injury, particularly in the event of sudden braking or a sudden change in direction. Never exceed the maximum permissible load for the stowage compartment. Stow and secure heavy objects in the trunk/cargo compartment.
The maximum permissible load of the stowage compartment is 3.3 lbs (1.5 kg).
X To open: pull handle : up and fold
cover ; forwards.
i On vehicles with a fire extinguisher, the fire extinguisher is located in the stowage compartment under the driver's seat.
Stowage compartment in the rear ! Do not sit or lean your bodyweight on the armrests when they are folded out as you could damage them.
All models except AMG vehicles X To open: pull handle : up.
The armrest folds out.
i Depending on the vehicle's equipment, a USB connection and an AUX IN connection or a Media Interface are installed in the stowage compartment. A Media Interface is a universal interface for mobile audio
! Close the cover of the stowage
compartment before folding the rear seat armrest back into the seat backrest.
The stowage pockets are on the back of the driver's and front-passenger's seats.
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301
Stowage nets Stowage nets are located in the front- passenger footwell and on the left and right- hand sides of the trunk/cargo compartment. Observe the loading guidelines (Y page 298) and the safety notes regarding stowage spaces (Y page 298).
Skibag Unfolding the skibag and loading skis G WARNING The skibag in conjunction with the lashing straps cannot restrain any objects other than skis. Vehicle occupants could be struck in the event of sudden braking or an accident, for instance, if you: Rtransport other heavy or sharp-edged
objects in the skibag
Rdo not secure the skibag with the lashing
straps
There is a risk of accident and injury. Store only skis in the skibag. Always secure the skibag with the lashing straps so that it cannot move around.
X To open: fold down seat armrest ;. X Fold cover : of the armrest upwards.
Stowage net in the rear
: Stowage net
Storage pockets G WARNING Storage bags are intended for storing light- weight items only. Heavy objects, objects with sharp edges or fragile objects may not be transported in the storage bag. In an accident, during hard braking, or sudden maneuvers, they could be thrown around inside the vehicle and cause injury to vehicle occupants. Storage bags cannot protect transported goods in the event of an accident.
302 Stowage areas
X Fold down the rear seat armrest. X Press release catches ; together and fold
down cover :.
X Engage hook : in securing ring ;. X Pull the strap tight by the loose end.
Removing skis and folding up the skibag
X Pull skibag : into the vehicle interior and
unfold it.
X Open the trunk lid.
X Press release catch :.
The flap opens downwards.
X Slide the skis into the skibag from the
trunk.
X Loosen the two straps. X Remove hook : from securing ring ;. X Take the skis out of the skibag. X Close the flap in the trunk. X Smooth out the skibag and fold it up. X Put the skibag into the backrest. X Fold the cover back up. i You should always close the flap in the
trunk if you do not require the skibag. This will prevent unauthorized access to the trunk from the vehicle interior.
X Pull strap : tight by the loose end until the
skis are held firmly inside the skibag.
Removing the skibag
If you would like to clean or dry the skibag, it can be removed. X Open the trunk lid. X Press release catch :.
Flap ; folds down.
X Press catch = in and pull out frame ?
containing the skibag.
Through-loading facility in the rear
The through-loading facility is opened from the trunk. X Fold down the rear seat armrest. X Press release catch :.