How many liters of engine oil are needed for a Mercedes GLC oil change?
3 Answers
Mercedes GLC requires approximately 6 liters of engine oil for an oil change. Introduction to Mercedes GLC oil change: The Mercedes GLC engine oil pan is relatively thick, so about 6 liters of oil are needed. You can use Mobil 1 0W-40 full synthetic oil. Key factors in selecting engine oil: Choose engine oil based on the requirements of the engine. There is no need to use overly advanced oil in engines with lower requirements, nor should lower-grade oil be used in engines with higher requirements. It is advisable to choose multi-grade oil whenever possible, as it is economical, long-lasting, efficient, and provides better protection for the engine. If the engine is in good condition and the seasonal temperature is low, it is best to use oil with lower viscosity to ensure smooth oil flow.
Having repaired Mercedes-Benz vehicles for over a decade, the most common issue I encounter is owners overfilling engine oil themselves. Taking the most popular GLC 300 as an example, during an oil change, it's crucial to completely extract the old oil—about 6.5 liters is the safest amount. Just the other day, I met a guy who added 7 liters, and the oil pressure warning light was flashing like a disco ball. Actually, when changing oil, don’t just focus on the quantity; it’s recommended to use low-ash oil with MB229.51 certification, especially for models with particulate filters. If you’re dealing with an AMG GLC 43, you’ll need a full 7 liters, and the drain plug torque must be adjusted to 25 Nm—these details aren’t in the manual; they’re lessons learned the hard way through repairs.
My GLC just had its third maintenance, and it actually took 6.2 liters of Mobil 1 oil. Special reminder for northern car owners: the manual says 6 liters, but about half a liter remains in the engine. In cold weather, it's best to ask the technician to extract for an extra 20 seconds. During the last maintenance, I saw a rookie at the next bay install the oil filter gasket upside down, causing a massive oil leak like a dam burst. Don't blindly trust the 4S store's so-called 'original' oil—it's actually Shell OEM. Buying SP-grade full synthetic oil yourself can save you over 300 yuan. Remember to ask the technician to reset the maintenance reminder after the service, otherwise that wrench icon will drive OCD sufferers crazy.
