Mercedes Benz Engine Oil Service and  the Oil Light Reset

Service oil light

Regular oil changes are vital to the health of your Mercedes-Benz engine. Fresh oil ensures proper lubrication, prevents overheating, and reduces engine wear. In addition to the oil change, resetting the oil light lets the vehicle’s system know that the maintenance has been completed. In this blog post, I’ll walk you through the steps to change your engine oil, replace the oil filter, and reset the oil light on your Mercedes-Benz.

Why Regular Engine Oil Service is Important

Engine oil lubricates and protects the moving parts of your engine. Over time, oil degrades and can become contaminated with dirt, metal particles, and combustion byproducts. Replacing your oil at regular intervals helps to:

  • Reduce friction and engine wear
  • Maintain optimal engine temperature
  • Improve fuel efficiency
  • Prolong the life of your engine

Mercedes-Benz generally recommends an oil change every 10,000 miles or once a year, but it’s best to consult your owner’s manual for the specific service interval for your model.

Tools and Supplies Needed for an Oil Change

  • Socket and wrench set
  • Oil filter wrench
  • Oil drain pan
  • Funnel
  • Replacement oil filter
  • Fresh engine oil (Mercedes-Benz-approved type and viscosity)
  • New oil drain plug washer
  • Gloves and shop towels
  • scanner or specific tools for resetting the oil service light, if needed (optional for some models)

Step-by-Step Guide to Changing Engine Oil in a Mercedes-Benz

Step 1: Prepare Your Vehicle and Tools

  1. Park on a Level Surface: Ensure the vehicle is on a flat, stable surface and engage the parking brake.
  2. Warm Up the Engine: Start the engine and let it run for a few minutes to warm up the oil. Warm oil flows more easily and helps remove impurities during draining.
  3. Raise the Vehicle: If necessary, use a jack and jack stands or ramps to safely lift the front of the vehicle for easier access to the oil pan.

Step 2: Drain the Old Engine Oil

  1. Locate the Oil Drain Plug: The oil drain plug is usually located on the bottom of the engine’s oil pan.
  2. Position the Drain Pan: Place the drain pan underneath the oil plug to catch the oil as it drains.
  3. Remove the Drain Plug: Use a socket wrench to loosen and remove the oil drain plug. Be cautious, as the oil may still be hot.
  4. Allow Oil to Drain: Let the oil completely drain from the engine. This can take several minutes. Inspect the drain plug and replace the washer with a new one if necessary.

Step 3: Remove and Replace the Oil Filter

  1. Locate the Oil Filter: The oil filter on most Mercedes-Benz models is located at the top of the engine, accessible under the hood, but some may be underneath.
  2. Use an Oil Filter Wrench: Unscrew the oil filter using an oil filter wrench if it’s tightly installed. Be cautious of residual oil in the filter.
  3. Replace the Oil Filter: Install the new filter, ensuring you apply a light coat of fresh oil to the rubber gasket. This helps the seal and makes it easier to remove during the next service. Tighten the filter by hand, ensuring it’s snug but not overly tight.

Step 4: Add New Engine Oil

  1. Locate the Oil Filler Cap: Open the oil filler cap on top of the engine.
  2. Use a Funnel: Place a funnel in the filler opening to prevent spills.
  3. Pour in the New Oil: Check your owner’s manual for the correct type and amount of oil. Pour in the oil gradually, checking the dipstick to avoid overfilling.
  4. Check the Oil Level: After adding the oil, check the dipstick to ensure it’s at the correct level. Adjust as needed, then replace and tighten the filler cap.

Step 5: Start the Engine and Check for Leaks

  1. Start the Engine: Start your vehicle and let it idle for a few minutes.
  2. Check for Leaks: Inspect the oil filter and drain plug area for any signs of leaking oil.
  3. Turn Off the Engine: After running for a few minutes, turn off the engine and recheck the oil level, topping off if necessary.

Step-by-Step Guide to Reset the Oil Service Light

After completing an oil change, it’s essential to reset the oil service light. This light acts as a reminder for the next oil change. Here’s how to reset it on most Mercedes-Benz models:

Method 1: Resetting Through the Instrument Cluster

  1. Turn the Ignition to Position 1: Press the Start/Stop button without starting the engine. The instrument cluster should light up.
  2. Navigate to the Mileage or Service Menu: Use the left steering wheel buttons to navigate through the menus.
  3. Access the Reset Menu: Depending on the model, press and hold the “Phone” button and “OK” button at the same time until the service menu appears.
  4. Select “Service Data” or “Assist Plus”: In the service menu, look for “Service Data” or “Assist Plus,” then select “Full Service.”
  5. Confirm Reset: Use the “OK” button to confirm the reset. The display should confirm that the oil service has been reset.

Method 2: Using an  Scanner

If the above method doesn’t work, some models may require an  scanner to reset the oil light. A compatible scanner with reset functions for Mercedes-Benz can make this task easier.

  1. Connect the Scanner: Connect the  scanner to the diagnostic port, usually located under the dashboard on the driver’s side.
  2. Access Service Reset: Follow the scanner’s instructions to access the service reset function.
  3. Confirm Reset: Once you select the reset option, confirm the command, and the oil light should turn off.

Maintenance Tips for Keeping Your Mercedes-Benz Engine Healthy

  1. Use High-Quality, Recommended Oil: Always use the oil type recommended by Mercedes-Benz to ensure engine longevity and performance.
  2. Check Oil Levels Regularly: Check your oil level every few weeks and top off if necessary.
  3. Follow Recommended Service Intervals: Keeping up with your vehicle’s oil change schedule is one of the best ways to maintain engine health and avoid costly repairs.

When to Seek Professional Help

While performing an oil change can be a straightforward task, some Mercedes-Benz models have specific requirements or may need specialized tools for resetting the service light. If you’re uncertain about any part of the process or prefer a professional touch, don’t hesitate to seek expert assistance.

Need Expert Assistance with Your Mercedes-Benz Oil Service?

If you’re looking for a reliable Mercedes-Benz technician to handle your oil service or reset the service light, I’m here to help. As a specialized Mercedes-Benz electrician technician, I provide expert oil changes and other essential maintenance services to keep your vehicle running smoothly. Contact me today for top-quality Mercedes-Benz service that you can trust 09015329867 Mercedes Benz engineer Abuja pelubenz.com