The maintenance indicator provides information about the optimal time for maintenance work.
Approximately one month before the maintenance deadline, the maintenance indicator automatically appears on the multi-function display after the ignition is switched on or while driving.
The following messages may appear on the display:
- "SERVICE IN xx DAYS" (THEN IN xx DAYS)
- "SERVICE IN xx KM" (THAT AFTER MILEAGE xx KM)
- "SERVICE EXCEEDED BY xx KM" (TO IS EXPIRED BY xx KM)
- "CARRY OUT SERVICE!" (GET IT DONE!)
Depending on the driving style, the maintenance period is indicated in days or kilometers (KM).
If the maintenance period has expired, an additional sound signal is activated.
The maintenance indicator automatically switches off after 30 seconds or by pressing the R button on the instrument panel.
Manual call of maintenance indication
Turn the electronic key in the ignition switch to position 1.
If the trip meter and total mileage counter are not displayed, press the button
on the multifunction steering wheel, press repeatedly until the display appears (Section Multifunctional steering wheel, multi-information display).
Button
or 
press several times until the maintenance indicator appears.
At the push of a button
the following system is indicated.
Caution! The maintenance indicator does not indicate the engine oil level. (Engine oil level warning indicator - refer to Section Multifunctional steering wheel, multi-information display previous Chapter).
The distance between two separate maintenance services depends on the driving style.
A gentle driving style with medium engine speed and avoiding short trips will increase the driving range.
Note: If the battery is disconnected, the maintenance indicator does not take into account the idle time.
In order to comply with the maintenance deadlines, it is necessary to take this period of time into account.
After performing maintenance, the maintenance indicator can be reset as follows:
Turn the electronic key in the ignition switch to position 1.
If the trip meter and total mileage counter are not displayed, press the button
on the multifunction steering wheel, press repeatedly until the display appears (Section Multifunctional steering wheel, multi-information display previous Chapter).
Button
or 
press several times until the maintenance indicator appears.
Press the R button on the instrument panel for about 2 seconds.
The multifunction display shows the following prompt:
- "DO YOU WANT TO RESET SERVICE INTERVAL? CONFIRM BY PRESSING R" (DO YOU WISH TO RESET THE MAINTENANCE INTERVAL? CONFIRM WITH THE R BUTTON)
Press the R button on the instrument panel again, the TO indication is reset.
The current maintenance indication appears with the new mileage.
If the reset of the maintenance indicator was performed by mistake, the indicator readings can be updated at the maintenance station "Mercedes-Benz".
Engine oil level warning indicator
When checking the oil level, the vehicle must be in a horizontal position.
Check the oil level approximately 5 minutes after stopping the warm engine.
Turn the electronic key in the ignition switch to position 2.
If the trip meter and trip meter are not displayed, press the button on the multifunction steering wheel several times until the display appears.
Button
or 
on the multifunction steering wheel, press repeatedly until the engine oil level indicator appears "WHEN MEASURING CAR MUST BE LEVEL!" (WHEN MEASURING, THE CAR MUST STAND LEVEL!)This indication appears only as a reminder; if the car is not level, the measurement can be interrupted by pressing a button 
or 
.
If the measurement is not interrupted, this will result in an incorrect measurement - place the car on a level surface and repeat the measurement.
If a message appears "ENGINE OIL LEVEL SWITCH ON IGNITION!" (ENGINE OIL LEVEL - TURN ON IGNITION!), the electronic key in the ignition switch is not in position 2.
After about 3 seconds the indication appears "ENGINE OIL LEVEL MEASURING NOW!" (ENGINE OIL LEVEL - MEASUREMENT PROCESS CONTINUES!).
The following messages may appear on the display:
- "OIL LEVEL CORRECT" (NO OIL TOP UP REQUIRED)
- "ADD 1.0 LITRES OF OIL!" (ADD 1 LITER OF OIL)
- "ADD 1.5 LITRES OF OIL!" (ADD 1.5 LITERS OF OIL)
- "ADD 2.0 LITRES OF OIL!" (ADD 2.0 LITERS OF OIL)
- "REDUCE OIL LEVEL!" (REDUCE OIL LEVEL!)
Excess oil should be drained or pumped out. There is a risk of damage to the engine or catalytic converter.
Filling engine oil - refer to Section Changing engine oil and oil filter.
If the correct measurement of the oil level is not possible, an indication appears "MEASURING NOW NOT POSSIBLE!" (MEASUREMENT IS NOT POSSIBLE AT THE MOMENT).
Repeat the oil level measurement after some time.
If the oil level is still not indicated, the oil level can also be checked with an oil dipstick (refer to Section Checking fluid levels, leak control).
Note: If the engine oil level indicator appears on the multifunction display while the engine is running, refer to the section "Warning system and malfunction signaling" (Section Warning and indicator lamps, as well as multi-information display messages about registered faults previous Chapter).
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The oil level cannot be controlled when the engine is running, an indication appears "ENGINE OIL LEVEL NOT WHEN ENGINE ON" (DO NOT CHECK ENGINE OIL LEVEL WHILE THE ENGINE IS RUNNING).