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yxd0018 01-22-2013 03:15 PM

first DIY oil change
Yesterday I did my first DIY oil change on my 1998 328i. I used a ramp and use precaution measures such as wheel choke and jack. It went ok. I thought I tightened the drain bolt but when I checked this morning, there is a large oil leakage under the car. Because the bolt is so small and thread is very short, like 2-3 rounds so I don't want to put too much torque onto it. But I did tighten it more.
Now I have 2 issues.
1. even after tightening, after a day parking, I see some oil accumulated under the bolt. It's not dripping yet to the ground. Should I tighten it more? Will it break the thread?
2. When I first start the car in the morning, I heard some high pitch noise. it sounds like metal scratching. After heating up, the sound went away. Now at 6pm, I hear it again when starting the car.
I added 7qt oil in the oil change and see the oil level in the middle of dip stick or whatever it's called to measure the engine oil level. Thinking of the leakage, I add 1/2 qt more now.
During oil change, I found it difficult to screw back the oil filter cap but I managed to put it on.
Besides above 2 points, I cannot think of any reason oil change can cause the high pitch noise.
Any suggestions? Should I reopen the filter cap to take a look? Should I ask mechanic to take a look?

Edit: I will record the sound later.

E36 Phantom 01-22-2013 03:24 PM

Did you replace the crush washer on the drain plug?

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jonesin 01-22-2013 03:29 PM


Originally Posted by E36 Phantom (Post 7330644)
Did you replace the crush washer on the drain plug with the new one that should have been provided with the new oil filter?

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E36 Phantom 01-22-2013 03:33 PM

Just like the "u" you Canadians throw in everywhere, you just like making everything longer when it needn't

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yxd0018 01-22-2013 03:34 PM

Damn, I see it in the package, but not in my drain plug so I didn't. What can I do now?

SCJon 01-22-2013 03:37 PM

You will have to drain the oil and refill after you put the crush ring on the drain.

yxd0018 01-22-2013 03:39 PM

k, thanks. what about my #2 issue?

E36 Phantom 01-22-2013 03:39 PM

If you completely clean and dry your drain pan you can reuse the new oil. Just do like you did before. Also, you know to let the oil rest in the block for 5-7 minutes before checking the oil level, right?

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jonesin 01-22-2013 03:40 PM

So long as your catch can is clean, you can safely reuse that oil though.

petriej 01-22-2013 04:15 PM

Take the filter out and put it back in. Make sure all the O-rings are seated properly.

hornhospital 01-22-2013 06:35 PM

OP said the plug only went in 2-3 turns before getting tight. That's not right. The oil plug goes in at least 8-10 turns if not more before it pushes the crush washer against the oil pan drain surface. I believe what we have here is a cross-threaded plug. That would explain the leak, too. No matter how tight you pull it, the crush washer is never going to seal the plug, since the plug isn't perpendicular to the sealing surface.

SCJon 01-22-2013 06:51 PM

Only one way to know for sure. OP, (that's original poster) we are gonna have to get a picture of that plug. And post it here please.

yxd0018 01-22-2013 06:55 PM

disaster, the thread of the plug is whacked a little bit. I will post picture shortly

Eight Thirty 01-22-2013 06:59 PM

good call by the old ken!

yxd0018 01-22-2013 07:13 PM

plug is here. I torque too much. Nextby is the washer coming with oil filter.
You can see the broken point of thread close to the top.
What should I do? buy new one from dealer or any garage will have this plug? I'm afraid if I put this on and it will leak again and I have to drain the oil again. I didn't feel the same tightness as the first time.

Eight Thirty 01-22-2013 07:13 PM

weld a patch over it. done right?

picture is broken

ZeGerman 01-22-2013 07:19 PM

That's what I thought would end up being the case. :(

yxd0018 01-22-2013 07:36 PM

hmm, I can see the picture even logging out of skydrive. You don't?

yxd0018 01-22-2013 07:40 PM

picture from google drive.
Suggestion please. I was outside with gusty wind and minus degree.

ZeGerman 01-22-2013 07:43 PM

I saw it just fine. The drain plug is sheared right off.

yxd0018 01-22-2013 07:44 PM

it seems the introducing small thread is broken but the main thread is still there. How much should I tighten up to make sure it doesn't leak? I wish I haven't redone it.

yxd0018 01-22-2013 07:46 PM

I feel it tighten a bit then loose again. Did I destroy thread in the oil tank?

yxd0018 01-22-2013 07:54 PM

Should I tighten it up to its first resistance to see if it leaks. Just like last time, if it leaks I will tighten more? Never thought the plug has so little thread.

ZeGerman 01-22-2013 07:55 PM

The plug is supposed to have many more threads. You need a new drain plug. Either you or a previous owner over-tightened the plug, and my guess is that it's floating around inside your oil pan (not good).

yxd0018 01-22-2013 08:08 PM

I saw oil pan plug online
Does all E36 have the same plug? The plug I have doesn't seem to be broken as the surface is very smooth.

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