Checking the oil level using the onboard computer
On vehicles with a 12-cylinder engine, the oil level can be checked using the on-board computer. On all other models, the dipstick must be used to check the engine oil level.
 Park the vehicle on a level surface.
 Park the vehicle on a level surface.
To check the oil level with the engine at normal operating temperature, switch the engine off and wait for approximately five minutes.
 Make sure that the SmartKey is in position 
2 in the ignition lock.
 Make sure that the SmartKey is in position 
2 in the ignition lock.
 Press the
 Press the
 or
 
or
 button to select the 
Service menu.
 
button to select the 
Service menu.
 Press the
 Press the
 or
 
or
 button to select 
Engine Oil Level.
 
button to select 
Engine Oil Level.
 Press the
 Press the
 button.
 
button.
The multifunction display shows the following message: Engine Oil Level Measuring Now Measurement correct only if vehicle level.
The measurement takes a few seconds. You will see one of the following messages in the multifunction display:
• Engine Oil Level OK
• Add 1.0 l Engine Oil At Next Refueling
• Add 1.5 l Engine Oil At Next Refueling
• Add 2.0 l Engine Oil At Next Refueling
 Add oil if necessary.
 Add oil if necessary.
If the engine is at normal operating temperature and the Engine Oil Level Reduce Oil Level message appears, the engine oil level is too high.
 Have excess oil siphoned off.
 Have excess oil siphoned off.
 Do not add too much oil. Adding too much 
oil can result in damage to the engine or the 
catalytic converter. Have excess oil 
siphoned off.
 Do not add too much oil. Adding too much 
oil can result in damage to the engine or the 
catalytic converter. Have excess oil 
siphoned off.
If the For Engine Oil Level Ignition Must be On message appears:
 Turn the SmartKey to position 2 in the 
ignition lock.
 Turn the SmartKey to position 2 in the 
ignition lock.
If the Need More Time to Check Engine Oil Level message appears:
 If the engine is at normal operating 
temperature: repeat the measurement 
after about five minutes.
 If the engine is at normal operating 
temperature: repeat the measurement 
after about five minutes.
If the engine is not at normal operating temperature (e.g. if the engine was only started briefly): repeat the measurement after about 30 minutes.
If the Engine Oil Level Not When Engine On message appears:
 Switch off the engine.
 Switch off the engine.
 If the engine is at normal operating 
temperature: wait about five minutes 
before carrying out the measurement.
 If the engine is at normal operating 
temperature: wait about five minutes 
before carrying out the measurement.
If the engine is not at normal operating temperature, e.g. if the engine was only started briefly: wait about 30 minutes before carrying out the measurement.
 If you wish to cancel the measurement, 
press the
 If you wish to cancel the measurement, 
press the
 button on the multifunction 
steering wheel.
 
button on the multifunction 
steering wheel.
See also:
Seat belt adjustment
   The seat-belt adjustment function adjusts the 
driver's and front-passenger seat belt to the 
upper body of the occupants.
The belt strap is tightened slightly when:
- you engage the belt tongue i ...
   
Tires
    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 
excessi ...
   
Operating audio player or audio media
   Audio data from various audio devices or media can be played, depending on the 
equipment installed in the vehicle.
	Switch on the audio system or COMAND and select the audio device or medium 
	( ...
   
