How many liters of engine oil should be added to the BMW 118i three-cylinder engine?
2 Answers
BMW 118i three-cylinder engine requires approximately 4 liters of engine oil. Engine oil plays a crucial role in lubricating and reducing friction, assisting in cooling, sealing against leaks, preventing rust and corrosion, and providing shock absorption. The BMW 118i is a compact car with body dimensions of 4341mm in length, 1765mm in width, and 1458mm in height, with a wheelbase of 2690mm and a fuel tank capacity of 52 liters. It is equipped with a 1.5L turbocharged engine, delivering a maximum power of 100kW at 4400rpm and a maximum torque range between 1250 to 4300rpm.
When I drove the 118i, I often changed the oil myself. The standard oil capacity for the three-cylinder engine is about 4.2 liters, but don't just focus on the number. Every time I did it, I made sure the engine was cooled down, drained the old oil completely, and then slowly poured in the new oil. Pouring too fast can cause spills and may lead to overfilling, which increases engine strain. I once added only 4.0 liters, and the oil level was too low—the engine noise became louder. After topping up with an extra 0.2 liters, it returned to normal. Using BMW-recommended 5W-30 synthetic oil is best, as it offers high compatibility and protects the engine. If you drive frequently, check the dipstick every 5,000 km to ensure the oil level is at the middle mark. If the oil level drops too quickly, it might indicate a leak or engine wear. Remember, both overfilling and underfilling are risky—overfilling wastes oil and affects performance, while underfilling reduces lubrication and shortens engine life. In short, 4.2 liters is the baseline, but always refer to the manual or consult a professional to be sure—don't skip the details. Regular maintenance is key and can save you a lot on repairs.
