There are two ways you can check the oil level of a Mercedes Benz – manually or via the multifunction buttons on the steering wheel and dashboard:
Make sure your car is at a level surface and only do this check when the engine is hot. The temperature needs to be around 80 deg C. Open the bonnet. Pull out the oil dipstick from the correct area of the engine and wipe it with a clean cloth. Put it back into the oil pan, as far as it will go in the dipstick tube. Once it has been fully reinserted, leave it for four seconds before removing it to get an accurate level.
Take it out again and check the oil level. Observe the Low and High marking. If the level lies between the Low and High marks, no more oil is required. If it is below the Low mark, top it up with oil until the level falls between Low and High.
Using the instrument cluster
Park the car on a level surface. Switch off the engine and leave for at least five minutes. Turn the key in the ignition to position two. All the dashboard lights should turn on.
Press the multifunction steering wheel button until you see the display “Engine Oil Level – Measuring Now”. Play with the up and down buttons until you see the following message: “CORRECT MEASUREMENT ONLY IF VEHICLE LEVEL” – this is why it’s so important to park the car on a flat surface.
This function varies from model to model. Here are the instructions for the 2006 Mercedes E-Class:
Put the key in the ignition and go to position one; you will hear one click.
Next, go to the reset button and click it three times. The voltage will then display in the centre of the speedometer dial.
Press the ‘Up’ arrow on the steering wheel and the screen will display blank information about the oil level.
Turn the key to Position Two in the ignition and the screen will read the oil level and display the final results. If you are not sure of the exact specification, check the user manual or enter your vehicle details online.
Checking the coolant
Don’t forget to check the coolant reservoir and risk your Mercedes overheating, especially as it’s a very simple task.
You can check the coolant level by first locating the coolant reservoir. It is important to do this when the engine is cold as the temperature pressure can range anywhere from 88 to 99 degrees Celsius so you don’t want to burn yourself. Remove the lid and check that the level is at the seal of the reservoir – if it isn’t, top it up with coolant. Replace the lid and the job is done.