Changing your Mercedes-Benz's motor oil at proper intervals is a simple way to extend the life of your car's engine by keeping the internal mechanisms cleanly lubricated. You can easily change the oil in your E320 after you have removed some access covers to get to the drain plug on your car's oil pan. Check in your E320's owner's manual or see the oil life display on your dashboard if your E320 is so equipped to determine proper oil change intervals. Or look at the dipstick: If the oil is dark brown, it's time to change it.
- Skill level:
- Moderately Easy
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Things you need
- Socket wrench
- 8mm socket
- 13mm socket
- 8.5 quarts Mercedes-approved motor oil
- Oil drain pan
- Rubber drain plug gaskets
- Shop ramps
- Wheel chocks
Drive the front of your E320 onto shop ramps and place wheel chocks at the back of your rear tires to ensure the car doesn't unintentionally move.
Get under the E320's driver side and remove the access cover that houses access to the oil drain plug. This access cover is attached to the car with four 8mm bolts.
Position the oil drain pan underneath the drain plug after you have revealed it.
Loosen the drain plug using the 13mm socket or a 13mm wrench to drain the oil out of the oil pan.
Replace the drain plug gasket while the oil drips into the oil drain pan.
Reinstall the drain plug screw after the oil has finished draining and reinstall the plastic access cover.
Open the car's bonnet and loosen the oil filler neck's cap, then place the funnel into the oil filler.
Slowly pour 8.5 quarts of oil into the engine crankcase. Replace the filler cap when you are done.
Close the bonnet and start the engine to allow the oil to circulate through it as it runs at idle for a few minutes to complete the procedure.
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