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Owning a BMW 1 Series E87 means enjoying the blend of performance and luxury, but it also demands attentive maintenance. One of the most critical routine tasks is an oil change, and doing it yourself can save money and give you peace of mind. This guide walks you through every step—from an engine flush that clears old contaminants to the careful removal and installation of the oil filter—so you can keep your car running smoothly and avoid costly repairs.
1. Prepare for the Job
Before you touch the engine, it is wise to perform an engine flush. The flush removes sludge and deposits that can clog passages and reduce efficiency. Start the engine and let it idle for about five minutes to warm the oil, then shut it off. Follow the instructions on the flush product bottle, usually adding the entire bottle to the engine oil. Tighten the oil cap, start the engine again, and let it idle for roughly ten minutes or as directed by the manufacturer. When the engine is off, the oil will be ready for draining.
2. Lift the Vehicle Safely
Raise the car using a floor jack and secure it with jack stands on both sides. Make sure the vehicle is firmly supported before you work underneath. Position a drain pan beneath the oil drain plug area to catch the old fluid. If your model has a plastic cover over the drain plug, use a flathead screwdriver to remove it carefully.
3. Drain the Old Oil
Loosen the drain plug with a 17‑mm socket, then finish unscrewing it by hand. Be ready for the oil to flow out quickly; the pan should catch all of it. Allow the oil to drain completely, which may take several minutes depending on how much remains in the engine. While the oil is draining, you can start preparing the new filter.
4. Replace the Oil Filter
Use an oil filter removal tool to loosen the filter housing. Finish removing the filter cartridge and the rubber O‑ring from the housing cap, then clean the cap thoroughly. Lubricate the new O‑ring with a small amount of fresh engine oil before installing the new filter cartridge. Reinstall the filter housing, ensuring it sits correctly and is aligned. Tighten the housing by hand first, then finish with the oil filter tool.
5. Add Fresh Oil and Check Level
After the drain plug is reinstalled, lower the vehicle slightly so the oil filler cap is accessible. Remove the cap and pour the recommended amount of fresh engine oil. For the E87, the manufacturer specifies a 5.2‑liter capacity. A good rule of thumb is to add about 4½ liters and then let the engine run for a minute to circulate the new oil. Turn off the engine, wait a few minutes, and then use the dipstick to check the level. If the oil is below the minimum mark, add a little more until it reaches the correct range. This step ensures the engine receives the proper lubrication without overfilling, which can cause foaming and pressure issues.
6. Common Mistakes to Avoid
Even a seasoned DIYer can slip up during an oil change. One frequent error is leaving the drain plug too loose, which can lead to leaks and engine damage. Another is over‑tightening the new filter, which may crush the O‑ring and cause oil to escape. Forgetting to replace the drain plug washer is also a common oversight; a worn washer can allow oil to seep out over time. Finally, adding too much oil is a simple mistake that can create foam and reduce engine performance. By double‑checking each step and following the manufacturer’s torque specifications, you can avoid these pitfalls and keep your BMW running smoothly.
7. Reassemble and Top Off
Once the oil has fully drained, reinstall the drain plug. Clean both the plug and washer, or replace the washer if a new one was supplied with the filter kit. Tighten the plug securely but avoid overtightening. Replace the plastic access cover. Lower the vehicle back onto the ground. Add fresh engine oil—consult the manufacturer’s specifications for the correct type and capacity. For the E87, the capacity is 5.2 liters; add about 4½ liters and then check the level before topping up as needed. The job is complete.
Performing an oil change on a BMW 1 Series E87 is a manageable task when you follow each step carefully. An engine flush keeps the system clean, a proper filter replacement ensures optimal filtration, and accurate oil quantity prevents over‑or under‑filling. By lifting the car safely, draining the oil completely, and reassembling with attention to detail, you protect the engine and extend its life. Keep the manufacturer’s guidelines in mind, and you’ll enjoy reliable performance and the satisfaction of a job well done.