What to check during BMW 520i oil change?

What to Check During BMW 520i Oil Change

What to Check During BMW 520i Oil Change

Regular oil changes are essential for maintaining the performance and longevity of any vehicle, including the BMW 520i. During an oil change, it is not only important to replace the old oil with fresh, high-quality oil, but also to conduct a thorough inspection of certain components to ensure everything is in optimal condition. Here are the key things to check during a BMW 520i oil change:

1. Oil Filter

One of the vital components to inspect is the oil filter. The oil filter strains out the impurities and contaminants present in the oil, preventing them from circulating throughout the engine. Over time, the oil filter can become clogged with debris, reducing its effectiveness. During an oil change, it is crucial to replace the oil filter with a new one to guarantee efficient filtration and engine protection.

2. Oil Level and Quality

Checking the oil level and quality is another important aspect of an oil change. Start by ensuring your BMW 520i is on a level surface, and then locate the dipstick, usually found near the engine. Remove the dipstick, wipe it clean, reinsert it fully, and then withdraw it to check the oil level. The oil level should fall between the minimum and maximum markers on the dipstick. Additionally, inspect the oil's color and consistency. Fresh oil should have a transparent amber color. If the oil appears dark, gritty, or has a burnt smell, it may be an indication of contamination or inadequate maintenance.

3. Leaks or Seepage

While performing an oil change, it is a good opportunity to inspect for any leaks or seepage around the engine. Check beneath the vehicle and examine the engine bay for any signs of oil drips or puddles. Leaks can indicate a problem with gaskets, seals, or other engine components. If you notice any leaks or seepage, it is advisable to consult a professional mechanic to address the issue promptly.

4. Serpentine Belt

The serpentine belt is responsible for powering multiple engine accessories, including the alternator, power steering pump, and air conditioning compressor. It is crucial to inspect the serpentine belt during an oil change for signs of wear, cracking, or fraying. If any damage is detected, it is recommended to replace the belt to prevent unexpected failures or damages to other engine components.

5. Oil Pan and Drain Plug

Take a moment during the oil change to inspect the oil pan and drain plug. Inspect the oil pan for any signs of damage, such as dents or cracks. Also, ensure that the drain plug is in good condition and tightened securely after the oil change. A loose or damaged drain plug can result in oil leakage, which can be detrimental to the engine.

Performing these thorough checks during a BMW 520i oil change not only ensures the engine oil is fresh and clean but also allows for early detection of potential issues. Regular maintenance and attention to detail can help in maintaining the performance and reliability of your BMW 520i for a long time to come.