CLS - Interactive Owner's Manual

Display messages

Notes

The on-board computer shows warnings or malfunctions in the multi-function display. Certain display messages are accompanied by a warning tone or a continuous tone.

The multi-function display shows high-priority display messages in red. In the following tables, these display messages are printed in red.

Please respond in accordance with the display messages and follow the additional notes in this Owner's Manual.

Risk of accident

No further messages can be displayed if there is a malfunction in the instrument cluster and/or the multi-function display.

This means that you will not see information about the driving situation, such as the speed, outside temperature, warning/indicator lamps, display messages or system failures. The vehicle's handling characteristics may be affected. Adjust your driving style and speed accordingly.

Immediately consult a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required. Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose. In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop.

When you stop and park the vehicle, please observe the instructions provided for HOLD moreand parking more.

The following tables contain all the display messages.

Hiding display messages

After a few seconds, the on-board computer automatically hides some low priority display messages. Other messages remain visible in the multi-function display until you hide them yourself.

Some high priority display messages cannot be hidden. The multi-function display shows these messages continuously until the causes of the messages have been remedied.

Use the buttons on the multi-function steering wheel.

  

Use the , , or button to select another display.

 

The on-board computer saves certain display messages in the message memory more.

 

Text messages

Risk of accident and injury

Always have maintenance work carried out at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required.

Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose.

In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop. If this work is not carried out correctly, the operating safety of your vehicle could be compromised. There is a risk of accident and injury.

Display messages

Possible cause/consequence

Possible solution

120 km/h

Maximum speed exceeded

The maximum speed has been exceeded

(Only for certain countries.)

.

  

Drive more slowly.

Display messages

Possible cause/consequence

Possible solution

ABS

ABS, ESP inoperative See Owner's Manual

  Risk of accident

ABS, ESP® and therefore also PRE-SAFE® are unavailable due to a malfunction. BAS has also been deactivated.

The brake system is still available with complete brake boosting effect.

  

Drive on carefully.

  

Visit a qualified specialist workshop.

ABS

ABS, ESP unavailable See Owner's Manual

  Risk of accident

ABS, ESP® and therefore also PRE-SAFE® are unavailable due to undervoltage. BAS has also been deactivated.

The brake system is still available with complete brake boosting effect.

  

Drive on carefully.

  

Visit a qualified specialist workshop.

DISTRONIC

Override

Distronic* is no longer controlling the speed of the vehicle.

  

Ease off the accelerator pedal.

DISTRONIC

- - -

An activation condition for Distronic* is not fulfilled.

  

If conditions permit, drive faster than 30 km/h and store the speed more.

or
  

Check activation conditions for Distronic*.

DISTRONIC

inoperative

Distronic* is faulty.

  

Visit a qualified specialist workshop.

DISTRONIC

currently unavailable See Owner's Manual

Distronic* is deactivated and is temporarily inoperative, if:

  • the Distronic* cover in the radiator grille is dirty

  • its function is impaired due to heavy rain, snow or fog.

  • the radar sensor system is temporarily unavailable, e.g. because of electromagnetic radiation.

  • The radar sensor system has not detected any vehicles or stationary objects, e.g. traffic signs, for a long time.

  • The system has overheated.

Distronic* is available again and the display message disappears when the dirt (e.g. slush) falls off while you are driving or if the system detects that the sensors are fully available again.

If the display message does not disappear:

  

Clean the Distronic* cover in the radiator grille more.

  

If necessary, wait until the system has cooled down.

  

Restart the engine.

ESP
also lights up:

inoperative See Owner's Manual

  Risk of accident

ESP® and therefore also Brake Assist and PRE-SAFE® are unavailable due to a malfunction.

The brake system is still available with complete brake boosting effect.

  

Drive on carefully.

  

Visit a qualified specialist workshop.

P

Selector lever in park position

You have switched off the engine with the KEYLESS GO button* and opened the driver's door.

or

With HOLD activated, you have either:

  • opened the driver’s door and released the seat belt or

  • switched off the engine or

  • opened the bonnet

The horn may also sound at regular intervals. The horn becomes louder if you attempt to lock the vehicle.

The engine cannot be started.

  

Move the selector lever to P.

 

The engine can be started again.

P

Selector lever in park position

You have tried to switch off the engine with the KEYLESS GO button* while the selector lever is in position R or D.

  

Move the selector lever to P.

Please shift

to P or N

You have attempted to start the engine while the selector lever is not in position P or N.

  

Move the selector lever to P or N.

PRE-SAFE

inoperative See Owner's Manual

PRE-SAFE® has failed. All other occupant safety systems, e.g. airbags, remain available.

  

Visit a qualified specialist workshop.

Tyre pressure

is only displayed after driving for a few minutes

The tyre pressure monitor* is measuring the tyre pressure.

  

Drive on.

 

The tyre pressures will appear in the multi-function display after you have been driving for a few minutes.

Tyre pressure

the tyre pressure

Vehicles with tyre pressure monitor*: the pressure of one or more tyres is too low or the tyre pressures of the individual wheels display a large discrepancy.

  

Check the tyre pressure at the next opportunity and correct it if necessary more.

Tyre pressure monitor

inoperative

The tyre pressure monitor* is malfunctioning.

  

Have the tyre pressure monitor* and wheels checked at a qualified specialist workshop.

Tyre pressure monitor

inoperative No wheel sensors

The tyre pressure monitor* is deactivated because the vehicle is fitted with wheels that do not have suitable wheel sensors.

  

Have wheels with suitable wheel sensors fitted at a qualified specialist workshop.

 

Once wheels with the correct wheel sensors have been fitted, the tyre pressure monitor* reactivates automatically after a few minutes of driving.

Tyre press. mon.

Wheel sensor missing

The tyre pressure monitor* is not receiving a signal from at least one wheel because a wheel has been fitted which does not have suitable sensors (e.g. the spare wheel). Or there is a malfunction in at least one wheel sensor.

A line is displayed in the multi-function display for the tyre concerned instead of the tyre pressure value.

  

Have the tyre pressure monitor* and wheels checked at a qualified specialist workshop.

 

Once wheels with suitable wheel sensors have been fitted again, the tyre pressures are displayed in the multi-function display after driving for a few minutes.

Tyre pressure monitor

currently unavailable

The tyre pressure monitor* is temporarily deactivated. The voltage of the vehicle's electrical system is too low or radio interference prevents the reception of sensor signals.

  

Drive on.

 

Once the causes have been eliminated, the tyre pressure monitor* automatically reactivates after a few minutes of driving.

Tyre pressure

Check tyres

The tyre pressure loss warning system has detected a significant pressure loss.

  

Stop the vehicle without making any sudden steering or braking manoeuvres. Pay attention to the traffic conditions as you do so.

  

Check the tyres.

  

Check the tyre pressure and correct it if necessary more.

  

Repair or change the faulty wheel as necessary more.

  

Then restart the tyre pressure loss warning system once the tyre pressure is correct more.

Run Flat Indicator

inoperative

The tyre pressure loss warning system is deactivated due to a malfunction.

  

Visit a qualified specialist workshop.

Check tyres,

then restart Run Flat Indicator

There was a tyre pressure warning message.

  

Make sure that the pressure set is correct for all tyres more.

  

Then restart the tyre pressure loss warning system more.

HOLD

off

HOLD has been deactivated. The vehicle is skidding or a condition for activating SBC HOLD is no longer met when the brake pedal is firmly depressed.

  

Reactivate HOLD later.

HOLD

cannot be activated See Owner's Manual

A condition for activating HOLD has not been met.

Check the conditions for activating HOLD more.

  

Close the bonnet.

  

Close the driver's door.

  

Start the engine.

  

Release the parking brake.

  

Switch off all consumers that are not required.

 

HOLD can be reactivated as soon as the on-board voltage is sufficient.

HOLD

inoperative See Owner's Manual

A malfunction has occurred.

  

Visit a qualified specialist workshop.

Cruise control and SPEEDTRONIC

inoperative

Speedtronic and cruise control or Distronic* are not operational.

  

Visit a qualified specialist workshop.

SRS

Restraint system malfunction Consult workshop

The restraint systems are faulty.

  

Visit a qualified specialist workshop immediately.

Cruise control

- - -

A condition for activating cruise control has not been met.

  

Activate ESP® more  

  

If conditions permit, drive faster than 30 km/h and store the speed more.

 

Symbol messages

Risk of accident and injury

Always have maintenance work carried out at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required.

Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose.

In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop. If this work is not carried out correctly, the operating safety of your vehicle could be compromised. There is a risk of accident and injury.

Display messages

Possible cause/consequence

Possible solution

The battery is not being charged. Possible causes:

  • faulty alternator

  • torn poly-V-belt

  • malfunction in the electronics

  

Stop immediately and safely when traffic conditions allow and check the poly-V-belt.

  

If it has torn: do not drive on. Contact the nearest qualified specialist workshop.

  

If it is not damaged: have the vehicle checked as soon as possible at a qualified specialist workshop.

The boot lid is open.

  

Close the boot lid.

  Risk of accident

Vehicles with an anti-theft alarm system*: you are driving with the bonnet open.

  

Stop the vehicle. Pay attention to the traffic conditions as you do so.

  

Close the bonnet.

At least one door is open. The display symbol shows you which doors are open.

  

Close the doors.

The cooling fan for the coolant is faulty.

  

If the coolant temperature is less than 120, you can continue driving to the nearest qualified specialist workshop.

  

In doing so, avoid heavy loads on the engine (e.g. driving in mountainous terrain) and stop-and-go driving.

Vehicle rising

Vehicles with AIRMATIC Dual Control*: your vehicle is adjusting to the level you have selected.

Vehicle rising Please wait

Vehicles with AIRMATIC Dual Control*: the vehicle level is too low when the vehicle is stationary.

  

Do not pull away.

  

Wait until the display message disappears.

 

The vehicle has reached the level required for driving.

STOP Car too low

  Risk of accident

AIRMATIC Dual Control* is faulty.

Avoid large steering angles, otherwise the wing or the tyres could be damaged when you drive on. Listen for scraping sounds.

  

Do not exceed a maximum speed of 80 km/h.

  

Pull over and select a higher vehicle level.

 

The vehicle may be raised, depending on the type of fault.

  

Visit a qualified specialist workshop immediately.

Malfunction

The AIRMATIC Dual Control* function is restricted. The vehicle's handling characteristics may be affected.

  

Do not exceed a maximum speed of 80 km/h.

  

Visit a qualified specialist workshop.

Brake wear

The brake pads/linings have reached their wear limit.

  

Have the brake pads/linings replaced as soon as possible at a qualified specialist workshop.

Brake immediately

A malfunction occurred with HOLD activated.

The horn may also sound at regular intervals. The horn becomes louder if you attempt to lock the vehicle.

The engine cannot be started.

  

Immediately depress the brake pedal firmly until the warning message in the multi-function display disappears.

  

Prevent the vehicle from rolling away before you leave it more.

 

The engine can be started again.

EBV, ABS, ESP inoperative See Owner's Manual

  Risk of accident

EBV, ABS and ESP® are unavailable due to a malfunction. BAS has also been deactivated. PRE-SAFE® is therefore also not operational.

The brake system is still available with complete brake boosting effect.

  

Drive on carefully.

  

Visit a qualified specialist workshop immediately.

Check brake fluid level

  Risk of accident

There is insufficient brake fluid in the brake fluid reservoir.

  

Pull over as soon as it is safe to do so.

  

Do not continue driving under any circumstances.

  

Consult the nearest qualified specialist workshop.

  

Do not top up the brake fluid. This will not rectify the malfunction.

Release parking brake

You are driving with the parking brake on.

  

Release the parking brake.

Clean fuel filter

  

Visit a qualified specialist workshop.

Coolant Stop vehicle, turn engine off

The coolant is too hot.

  

Stop the vehicle. Pay attention to the traffic conditions as you do so.

  

Switch off the engine.

  

Wait until the display message disappears before restarting the engine. There is otherwise a risk of engine damage.

  

Observe the coolant temperature gauge.

  

If the temperature increases again, visit a qualified specialist workshop immediately.

Coolant Stop vehicle, turn engine off

The poly-V-belt may have torn.

  

Stop the vehicle. Pay attention to the traffic conditions as you do so.

  

Switch off the engine.

  

Check the poly-V-belt.

  

If it is not damaged: do not start the engine again until the display message goes out. There is otherwise a risk of engine damage.

  

If it has torn: do not drive on. Contact the nearest qualified specialist workshop.

Top up coolant See Owner's Manual

The coolant level is too low.

  

Top up the coolant, observing the warning notes before doing so more.

  

Have the coolant system checked at a qualified specialist workshop if the coolant needs topping up more often than usual.

Dipped beam, left
or
Dipped beam, right

The right-hand or left-hand dipped-beam headlamp is faulty.

  

Halogen headlamp: replace the bulb more.

  

Bi-xenon headlamp*: visit a qualified specialist workshop.

AUTO lights inoperative

The light sensor is faulty. Constant headlamp mode is switched on.

  

Switch the lights to manual control in the on-board computer more.

  

Switch the lights on and off using the light switch.

Rear left turn signal Back-up bulb on
or
Rear right turn signal Back-up bulb on

The rear left-hand or rear right-hand turn signal is faulty.

This display message will only appear if all LEDs have failed.

  

Visit a qualified specialist workshop.

Turn signal in left-hand mirror
or
Turn signal in right-hand mirror

The turn signal lamp on the left-hand or right-hand exterior mirror is faulty. This display message will only appear if all LEDs have failed.

  

Visit a qualified specialist workshop.

Front left turn signal Back-up bulb on
or
Front right turn signal Back-up bulb on

The front left-hand or right-hand turn signal is faulty.

  

Replace the bulb more.

3rd brake lamp

The third brake lamp is faulty. This display message will only appear if all LEDs have failed.

  

Visit a qualified specialist workshop.

Left brake-/tail lamp Back-up bulb on
or
Right brake-/tail lamp Back-up bulb on

The left-hand or right-hand rear brake lamp is faulty. This display message will only appear if all LEDs have failed.

  

Visit a qualified specialist workshop.

Main beam, left
or
Main beam, right

The left-hand or right-hand main-beam headlamp is faulty.

  

Replace the bulb more.

Left-hand licence plate lamp
or
Right-hand licence plate lamp

The left-hand or right-hand licence plate lamp is faulty.

  

Replace the bulb more.

Switch off lights

You did not switch off the lights when leaving the vehicle.

  

Turn the light switch to or .

Front left-hand foglamp
or
Front right-hand foglamp

The front left-hand or right-hand foglamp is faulty.

  

Visit a qualified specialist workshop.

Rear left-hand foglamp
or
Rear right-hand foglamp

The left-hand or right-hand rear foglamp is faulty.

  

Visit a qualified specialist workshop.

Front left-hand parking lamp Back-up bulb on
or
Front right-hand parking lamp Back-up bulb on

The front left-hand or right-hand parking lamp is faulty.

  

Replace the bulb more.

Left-hand reversing lamp
or
Right-hand reversing lamp

The left-hand or right-hand reversing lamp is faulty.

  

Visit a qualified specialist workshop.

Left-hand tail lamp Back-up bulb on
or
Right-hand tail lamp Back-up bulb on

The left-hand or right-hand tail lamp is faulty.

This display message will only appear if all LEDs have failed.

  

Visit a qualified specialist workshop.

Replace air cleaner

The engine air filter must be replaced.

  

Visit a qualified specialist workshop.

Check engine oil level when next refuelling

The engine oil level has dropped to a critical level.

  

Check the engine oil level more and top up the engine oil if necessary.

  

Have the engine checked for leaks if the engine oil needs topping up more often than usual.

Display malfunction Consult workshop

One or more electronic systems are unable to deliver information to the on-board computer. The following systems may have failed:

  • Coolant temperature gauge

  • Rev counter

  • Cruise control or Speedtronic display

  

Visit a qualified specialist workshop.

Tyre pressure Caution Tyre defect

One or more tyres are losing air rapidly. The affected wheel is highlighted in the tyre pressure display of the tyre pressure monitor*.

  

Stop the vehicle without making any sudden steering or braking manoeuvres. Pay attention to the traffic conditions as you do so.

  

Repair or change the tyre more.

Tyre pressure Check tyres

The pressure in one or more tyres has dropped significantly. The affected wheel is highlighted in the tyre pressure display of the tyre pressure monitor*.

  

Stop the vehicle without making any sudden steering or braking manoeuvres. Pay attention to the traffic conditions as you do so.

  

Check the tyres.

  

Repair or change the faulty tyre if necessary more.

  

Check the tyre pressure and correct it if necessary more.

 

The warning will disappear automatically after you have been driving for a few minutes with the corrected tyre pressure.

Change key batteries

The batteries of the KEYLESS GO key* are discharged.

  

Change the batteries more.

Key not detected

The KEYLESS GO key* is not in the vehicle.

It will no longer be possible to centrally lock the vehicle and start the engine if the engine is switched off.

  

Stop the vehicle. Pay attention to the traffic conditions as you do so.

  

Look for the KEYLESS GO key*.

Key not detected

The KEYLESS GO * key is not detected while the engine is running, because there is interference from a strong source of radio waves.

  

Stop the vehicle. Pay attention to the traffic conditions as you do so.

  

Operate the vehicle using the key in the ignition lock if necessary.

Key not detected

The KEYLESS GO key* cannot be detected at present.

  

Change the location of the KEYLESS GO key* within the vehicle.

  

Operate the vehicle using the key in the ignition lock if necessary.

Key still in vehicle

The KEYLESS GO key* was detected inside the vehicle during locking.

  

Remove the KEYLESS GO key* from the vehicle.

Please replace key

The key no longer functions.

  

Visit a qualified specialist workshop.

inoperative Battery weak

The battery voltage is insufficient. The auxiliary heating/ventilation* has switched off or cannot be switched on.

  

Drive for a longer distance.

 

The battery is being charged. The auxiliary heating/ventilation* is reactivated as soon as there is sufficient battery voltage.

inoperative Refuel

There is insufficient fuel in the fuel tank. The auxiliary heating* cannot be switched on.

  

Refuel at the nearest filling station.

inoperative See Owner's Manual

The auxiliary heating* has a temporary malfunction or is faulty.

  

When the vehicle is on a level surface and the engine has cooled down: try to switch on the auxiliary heating* four times, waiting for several minutes between each attempt.

  

If the auxiliary heating* does not switch on: visit a qualified specialist workshop.

Reserve fuel level

The fuel level has fallen below the reserve range. The operation of the auxiliary heating* can no longer be guaranteed.

  

Refuel at the nearest filling station.

Enter PIN:

You have not yet logged on to your mobile phone*.

  

Enter the PIN for the SIM card.

Bluetooth ready

The Bluetooth connection between your mobile phone and the audio system or COMAND APS* is not activated.

  

The Bluetooth connection between your mobile phone and the audio system or COMAND APS* is not activated, see separate operating instructions.

No telephone inserted

Your mobile phone is not inserted in the bracket*.

  

Insert mobile phone into the bracket*more.

Top up washer fluid

The washer fluid level in the washer fluid reservoir has dropped below the minimum.

  

Top up the washer fluid more.