MERCEDES CHECK ENGINE OIL AT NEXT REFUELING WARNING W212 E350 E550 W204

Introduction

In this tutorial, we will guide you through the process of addressing the “check engine oil at next refueling” warning on a Mercedes-Benz W212 E-Class, specifically the E350 and E550 models. This warning indicates that the engine oil level is low or that the oil needs to be checked. Ensuring proper oil levels is crucial for maintaining your vehicle's performance and longevity.

Step 1: Check the Oil Level

Before taking any further action, it's essential to check the current oil level in your vehicle.

1. Park the Vehicle: Ensure the car is on a level surface and turn off the engine.
2. Wait a Few Minutes: Allow the engine to cool down for a few minutes for accurate readings.
3. Locate the Dipstick: Open the hood and find the engine oil dipstick, which is usually marked with a bright handle.
4. Remove the Dipstick:
   • Pull the dipstick out of the tube.
   • Wipe it clean with a lint-free cloth or paper towel.
5. Reinsert and Remove the Dipstick Again:
   • Insert the dipstick back into its tube fully.
   • Remove it once more to check the oil level.
6. Check the Oil Level:
   • Look at the markings on the dipstick. The oil should be between the minimum and maximum marks. If it's below the minimum mark, you will need to add oil.

Step 2: Add the Right Oil

If the oil level is low, you need to add the appropriate type of oil.

1. Determine Oil Type:
   • Check your owner's manual or the oil cap for the recommended oil specification (e.g., 5W-30).
2. Purchase Oil: Obtain the right oil from a trusted retailer or a Mercedes dealer.
3. Add Oil:
   • Remove the oil filler cap, usually located on top of the engine.
   • Using a funnel, pour in the new oil slowly.
   • Add small amounts at a time and check the dipstick frequently to avoid overfilling.
4. Recheck Oil Level: After adding oil, wait a minute and check the dipstick again to ensure it is now within the acceptable range.
5. Secure Everything: Replace the oil filler cap and ensure the dipstick is securely back in place.

Step 3: Reset the Warning Message

After checking and adjusting the oil level, you may need to reset the warning message on your instrument cluster.

1. Turn on the Ignition: Without starting the engine, turn the key to the 'on' position.
2. Navigate to the Menu: Use the steering wheel buttons to scroll through the display options on the instrument cluster.
3. Find the Oil Level Indicator: Look for the oil level or maintenance section.
4. Reset the Warning: Follow the prompts to reset the oil level warning.

Conclusion

By following these steps, you can effectively check and maintain the engine oil level in your Mercedes W212 E-Class, ensuring optimal engine performance. Regularly checking your oil can help prevent engine damage and prolong the life of your vehicle. If you are unsure about any procedures or need assistance, consider consulting a Mercedes dealer for expert advice and service.