[thornfrog]

So I did my first oil change at 2400 mile. I have never done any car maintenance before so it was a bit scary to lay underneath my vehicle but the process itself was easy enough.

First of all, front center jacking point in the 1st picture.

2nd picture shows front differential (not sure) and drain plug. I wasn't expecting a steel drain plug cause I thought what I'm going to unscrew is a plastic plug (8 Nm) as shown in the last picture.

3rd picture shows the steel drain plug(part# 11137535106) close up. It's 17mm.

4th picture shows a plastic drain plug I was expecting. I guess it's for 328i rwd ? and mine is 328i xDrive.

I added 5 quarts, drove for a while until oil is at operating temperature to measure oil level, and after measurement my iDrive says my oil level is Max.

[jwilly]

Yes, plastic drain plug is for the 328i.
As you have a metal oil pan, versus the plastic one on the 328i, the replacement filter for the xi comes with a new crush washer and you reuse the metal drain plug.
If I were you, I'd keep an eye on the plastic plug for leaks and ensure that it has not loosened. If you did not toss the metal drain plug, replace it next time you change the oil.
If you really feel uncomfortable with the plastic plug, drain the oil and replace the plug now.

Joel

[thornfrog]

Originally Posted by jwilly

Yes, plastic drain plug is for the 328i.
As you have a metal oil pan, versus the plastic one on the 328i, the replacement filter for the xi comes with a new crush washer and you reuse the metal drain plug.
If I were you, I'd keep an eye on the plastic plug for leaks and ensure that it has not loosened. If you did not toss the metal drain plug, replace it next time you change the oil.
If you really feel uncomfortable with the plastic plug, drain the oil and replace the plug now.

Joel

I didn't use the plastic plug. I reused the metal drain plug with a new crush washer.

[Kermit]

Thank you! You've just confirmed that I'm not going mad. I was looking for a removable flap or access cover to get at the oil sump plug, but there isn't one... Just an oval gap with what looks suspiciously like the oil plug just like yours. All the videos I've watched show them unscrewing covers and the like. Nice one.