Mercedes-Benz GLK-Class: Engine

Mercedes-Benz GLK-Class / Mercedes-Benz GLK-Class 1st Gen Owner's Manual / On-board computer and displays / Engine

Display messages Possible causes/consequences and Solutions
Level See Operator's Manual

Check Coolant Level See Operator's Manual

 The coolant level is too low.
  • Add coolant, observing the warning notes when doing so ().
  • If coolant needs to be added more often than usual, have the engine coolant system checked at a qualified specialist workshop.
Level Low Stop Vehicle Turn Engine Off

Coolant Level Low Stop Vehicle Turn Engine Off

 The coolant is too hot.
  • Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions.
  • Make sure that the air supply to the engine radiator is not blocked, e.g. by snow, slush or ice.
  • Wait until the display message disappears before restarting the engine. Otherwise, there is a risk of engine damage.
  • Pay attention to the coolant temperature display.
  • If the temperature increases again, visit a qualified specialist workshop immediately.

The poly-V-belt may have torn.

  • Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions.
  • Open the hood.
  • Check whether the poly-V-belt is torn.

If the poly-V-belt is torn:

Do not continue driving. The engine could otherwise overheat.

  • Consult a qualified specialist workshop.

If the poly-V-belt is not damaged:

  • Wait until the display message disappears before restarting the engine. Otherwise, there is a risk of engine damage.
  • Pay attention to the coolant temperature display.
  • Visit a qualified specialist workshop.
The engine fan is defective. The engine fan is defective.
  • At coolant temperatures under 248 ‡ (120 † ), drive to the next qualified specialist workshop.
  • Avoid subjecting the engine to heavy loads, e.g. driving in mountainous terrain, and stop-and-go traffic.
The battery is not being charged. Possible causes are: The battery is not being charged. Possible causes are:
  • a defective alternator
  • a torn poly-V-belt
  • a malfunction in the electronics

 

  • Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions.
  • Open the hood.
  • Check whether the poly-V-belt is torn.

If the poly-V-belt is torn:

Do not continue driving. The engine could otherwise overheat.

  • Consult a qualified specialist workshop.

If the poly-V-belt is not damaged:

  • Visit a qualified specialist workshop.
The engine oil level has dropped to the minimum level. The engine oil level has dropped to the minimum level. A warning tone also sounds.
  • Check the engine oil level at the latest when next refueling ().
  • If necessary, add engine oil ().
  • If engine oil needs to be added more often than usual, have the engine checked at a qualified specialist workshop.
Low

Fuel Level Low

 The fuel level has dropped into the reserve range.
  • Refuel at the nearest gas station.
There is only a very small amount of fuel in the fuel tank. There is only a very small amount of fuel in the fuel tank.
  • Refuel at the nearest gas station without fail.
Loose

Gas Cap Loose

 The fuel system pressure is too low. The fuel filler cap is not closed correctly or the fuel system is leaking.
  • Check that the fuel filler cap is correctly closed.

If the fuel filler cap is not correctly closed:

  • Close the fuel filler cap.

If the fuel filler cap is correctly closed:

  • Visit a qualified specialist workshop.
Cruise Control Inoperative Cruise control is defective. A warning tone also sounds.
  • Visit a qualified specialist workshop.
Cruise Control --- mph A condition for activating cruise control has not been fulfilled. You attempted to save a speed of less than 20 mph (30 km/h).
  • If the situation allows, drive faster than 20 mph (30 km/h) and save the speed.
  • Check the activation conditions for cruise control ().

Information on approved engine oils can be obtained from any qualified specialist workshop or on the Internet at http://www.mbusa.com (USA only).

is a risk of engine damage. 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.

Tires

WARNING WARNING

Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up and possibly a fire.

WARNING WARNING

Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated.

Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes etc.

Display messages Possible causes/consequences and Solutions
Check Tire Pressure Soon Risk of accident

The tire pressure loss warning system has detected a significant loss in pressure.

A warning tone also sounds.

  • Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.
  • Check the tires and, if necessary, change the wheel ().
  • Check the tire pressures and, if necessary, set to the correct tire pressure.
  • Restart the tire pressure loss warning system when the tire pressure is correct ().
Check Tire Pressure Then Restart Run Flat Indicator The tire pressure loss warning system generated a display message and has not been restarted since.
  • Set the correct tire pressure in all four tires.
  • Restart the tire pressure loss warning system ().
Run Flat Indicator Inoperative The tire pressure loss warning system is defective.
  • Visit a qualified specialist workshop.
Tire pressures will be displayed after driving a few minutes The tire pressure monitor is measuring the tire pressure.
  • Drive on. The tire pressures appear in the multifunction display after you have been driving for a few minutes.
Tire Press. Monitor Inoperative The tire pressure monitor is defective.
  • Visit a qualified specialist workshop.
Tire Press. Monitor Inoperative No Wheel Sensors The wheels mounted do not have a suitable tire pressure sensor. The tire pressure monitor is deactivated.
  • Mount wheels with suitable tire pressure sensors. The tire pressure monitor is activated automatically after driving for a few minutes.
Check Tires Risk of accident

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.

  • Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.
  • Correct the tire pressure ().
  • If necessary, change a wheel ().
Caution: Tire Malfunction Risk of accident

The tire pressure in one or more tires has dropped suddenly. The wheel position is displayed in the multifunction display.

  • Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.
  • If necessary, change a wheel ().
Correct 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.
  • Check the tire pressures at the next opportunity. If necessary, correct the tire pressure ().
  • Restart the tire pressure monitor ().
Tire Press. 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.
  • Have the defective tire pressure sensor replaced at a qualified specialist workshop.
Tire Press. Monitor Currently Unavail. Due to a source of radio interference, no signals can be received from the wheel sensors. The tire pressure monitor is temporarily malfunctioning.
  • Drive on. The tire pressure monitor restarts automatically as soon as the problem has been solved.
Warning Caution Tire Malfunction

Tire Press. Warning Caution Tire Malfunction

 Risk of accident

The tire pressure in one or more tires has dropped suddenly. A warning tone also sounds.

  • Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.
  • If necessary, change a wheel ().
Pressure

Check Tire Pressure

 Risk of accident

The tire pressure in one or more tires has dropped significantly.

  • Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.
  • If necessary, change a wheel ().
  • Check the tire pressure. If necessary, correct the tire pressure ().
Tire Pressure

Correct 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.
  • Check the tire pressures at the next opportunity. If necessary, correct the tire pressure ().

Vehicle

Display messages Possible causes/consequences and Solutions
Shift to 'P' or 'N' to Start Engine You have attempted to start the engine with the transmission in position R or D.
  • Shift the transmission to position P or N.
P Shift to 'P' You have attempted to stop the engine with the Start/Stop button while the transmission was not in position P.
  • Shift the transmission to position P.
The tailgate is open. The tailgate is open.
  • Close the tailgate.
Risk of accidentThe hood is open. Risk of accident

The hood is open.

  • Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
  • Apply the parking brake.
  • Close the hood.
At least one door is open. At least one door is open.
  • Close all the doors.
Malfunction See Operator's Manual

Power Steering Malfunction See Operator's Manual

 Risk of accident

The power steering is malfunctioning. You will need to use more force to steer. A warning tone also sounds.

  • Check whether you are able to apply the extra force required.
  • If you are able to steer safely: carefully drive on to a qualified specialist workshop.
  • 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.
  • Wait until the mobile phone operational readiness symbol appears in the multifunction display.
Fluid

Check Washer Fluid

 The washer fluid level in the washer fluid reservoir has dropped below the minimum.
  • Add washer fluid ().

SmartKey

Display messages Possible causes/consequences and Solutions
Not Belong to Vehicle

Key Does Not Belong to Vehicle

 You have put the wrong SmartKey in the ignition lock.
  • Use the correct SmartKey.
Key from Ignition

Take Your Key from Ignition

 The SmartKey is in the ignition lock.
  • Remove the SmartKey.
New Key

Obtain a New Key

 The SmartKey needs to be replaced.
  • Visit a qualified specialist workshop.
Key Battery

Replace Key Battery

 The batteries of the KEYLESS-GO key are discharged.
  • Change the batteries ().
Your Key

Don't Forget Your Key

 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.

  • Remember to take the KEYLESS-GO key with you when you leave the vehicle.
Detected (red display message)

Key Not Detected (red display message)

 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.

  • Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
  • Apply the parking brake.
  • 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.

  • Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
  • Engage the parking brake.
  • Operate the vehicle with the SmartKey in the ignition lock.
Detected (White display message)

Key Not Detected (White display message)

 The KEYLESS-GO key cannot be detected at present.
  • Change the location of the key with the KEYLESS-GO functions in the vehicle.

If the KEYLESS-GO key is still not detected:

  • Operate the vehicle with the SmartKey in the ignition lock.
in Vehicle

Key Detected in Vehicle

 The KEYLESS-GO key has been detected inside the vehicle during locking.
  • Remove the KEYLESS-GO key from the vehicle.
Button and Insert Key

Remove 'Start' Button and Insert Key

 KEYLESS-GO is temporarily malfunctioning or is defective. A warning tone also sounds.
  • Insert the SmartKey into the ignition lock and turn it to the desired position.
  • Visit a qualified specialist workshop.
to Lock Vehicle

Close Doors to Lock Vehicle

 At least one door is open. A warning tone also sounds.
  • Close all doors and lock the vehicle again.
Display messages
Warning and indicator lamps in the instrument cluster

See also:


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Brakes
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