Here’s another one of those common oil leak points on the BMW E46. Up there with the valve cover gasket as one of the most common sources of oil leaks on the E46, the oil filter housing gasket is yet another weak point. What’s crazy is that, the oil filter housing gasket itself costs less than $5, but the overall job usually costs much more due to the labor it takes to remove all of the other components needed to get to the gasket.

Changing the oil and oil filter on your BMW E46 may be one of the most important maintenance items you can do on your car. This guide applies to all M52 and M54 engines, which can be found in the BMW 323i, 325i, 328i, and 330i coupes, sedans, wagons, and convertibles.

Buying motor oil online is as easy as ever, and it’s also the best place to score a great deal on it as well. If you need oil for your oil change and you need it now, then going to your local in-person store will suffice. But if you want to get the best deal, you’ll need to order it during specific times throughout the year—even if you don’t need it. The reason for this is that there are deals that pop-up online from time-to-time that will allow you to purchase oil at more than half off the normal retail price.