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Old 03-19-2019, 03:25 PM   #1
asm123
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Oil Drain Plug Stripped

Tried to get my oil changed the other day on 05 M3. The drain plugged is stripped, however, and we didn't proceed with the change as we didn't know if the bolt would securely fit back in. I called dealer who said that the whole pan would have to be replaced which is over 2k....

Anybody have experience with this or know mechanics in the Philly area that have experience with this? I was under the assumption that just the bolt could be replaced, but I guess not.

Anything helps. Thanks

Last edited by asm123; 03-19-2019 at 03:26 PM.
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Old 03-19-2019, 03:32 PM   #2
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Go with a used oil pan. Itís not a hard job. Any competent mechanic can handle.


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Old 03-19-2019, 03:48 PM   #3
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There is a used S54 oil pan on Ebay for $500 (seems a little pricey, but there is only one)

Here is a DIY on dropping the pan on an M3...need to lower the subframe.

http://www.m3forum.net/m3forum/showthread.php?t=414678
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Old 03-19-2019, 03:50 PM   #4
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Call a BMW disassembler. There has to be one somewhere near you. Buy a used pan and gasket. It is not fun, but not hard.
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Old 03-19-2019, 03:53 PM   #5
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You can fix your pan. I have fixed many this way. Get an aluminum nut that fits your drain plug and have it tig welded on the inside of the pan. It wonít leak and itís cheap. A new gasket and the nut and a good welder to weld it unless you have a tig welder.


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Old 03-19-2019, 03:56 PM   #6
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Or you could always tap the next size up.
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Old 03-19-2019, 08:48 PM   #7
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Do you mean the Allen where you put the bit into to turn the plug or the plug threads that actually mates with the oil pan is stripped?...I'm reading the statement wrong...LOL

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Old 03-19-2019, 10:25 PM   #8
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Tap or replace pan & refresh gasket while you're there.

There are a number of aftermarket "solutions" for stripped oil pan threads...can't speak to their efficacy.
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Old 03-19-2019, 10:30 PM   #9
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That happened to mine too. Just tap it, new drain plug. Cheap and fast and effective.


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Old 03-19-2019, 11:12 PM   #10
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Quote:
Originally Posted by docnabimmer View Post
Do you mean the Allen where you put the bit into to turn the plug or the plug threads that actually mates with the oil pan is stripped?...I'm reading the statement wrong...LOL

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Hahah should have clarified...the allen where you put the bit into
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Old 03-19-2019, 11:44 PM   #11
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I've heard of threads stripping on aluminum pans, but there are further threads unused and deeper up in the pan. Just a thought, but those were handled merely by purchasing an extra deep drain plug that Mercedes sells which provided the necessary clamping force to be leak free. For the OP, you'd need to drain the oil and take a look if there are threads deeper in, unless someone is able to tell you with authority that all the oil pan's threads are used with the factory BMW drain plug.
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Old 03-20-2019, 12:39 AM   #12
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I rarely even use the oil drain plug. I bought one of those vacuum pumps almost 10 years ago so I could do oil changes without getting under the car. $80 for the pump vs $2k for a new pan. You should consider this.
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Old 03-20-2019, 12:49 AM   #13
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I had same thing happen and got a new bolt plus a bit of locktite on bolt and it does not leak at all where as before it dropped quite alot, worth a shot.

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Old 03-20-2019, 12:51 AM   #14
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Quote:
the allen where you put the bit into
Isn't that for when you break the plug off in the pan so you can extract it.?
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Old 03-20-2019, 01:54 AM   #15
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Quote:
Originally Posted by C3trevor View Post
Just tap it, new drain plug. Cheap and fast and effective.
^This. No need ro replace the oil pan. Itís very easy to drill and tap to a larger size plug.
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Old 03-20-2019, 12:17 PM   #16
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Thanks everyone! Was able to get the old plug out and replace with a 13mm socket plug for future. Successful oil change
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Old 03-20-2019, 01:01 PM   #17
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asm123: FCP Euro's Lifetime Warranty includes oil! Why pay more than return shipping costs?


Snapped stud (?) off w/bolt for oil level sender...amateur mistake. This will be the last time I opt to leave the torque wrench on the asphalt...

Remaining two bolts are all set. Not the slightest leak observed after some time - yet this bothers me the same. Recommendations?
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Last edited by Ettinger; 03-20-2019 at 01:02 PM.
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Old 03-20-2019, 01:31 PM   #18
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Wherever you went to change your oil might not be a place to return to. They got frightened and didn't either try hard enough, or didn't think to just vacuum out the oil.

Glad you got this sorted!
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Old 03-20-2019, 02:32 PM   #19
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Quote:
Originally Posted by docnabimmer View Post
Do you mean the Allen where you put the bit into to turn the plug or the plug threads that actually mates with the oil pan is stripped?...I'm reading the statement wrong...LOL

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Quote:
Originally Posted by asm123 View Post
Hahah should have clarified...the allen where you put the bit into
people without an M3 donít understand we have a different oil drain bolt. itís an internal Allen that strips, not a bolt head. first buy a new one or better yet the upgrade is the M5 oil pan nut.
to remove old one there are a couple of tricks. Everything from vice grips to taking a torx head and forcing a tight fit, to a chisel on edges of nut to turn it to jb weld a screw head inside the Allen opening.
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Old 03-20-2019, 03:30 PM   #20
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Originally Posted by asm123 View Post
Tried to get my oil changed the other day on 05 M3. The drain plugged is stripped, however, and we didn't proceed with the change as we didn't know if the bolt would securely fit back in. I called dealer who said that the whole pan would have to be replaced which is over 2k....

Anybody have experience with this or know mechanics in the Philly area that have experience with this? I was under the assumption that just the bolt could be replaced, but I guess not.

Anything helps. Thanks

So what's the condition of the plug at the moment? Is it in and leaking or out and won't go back in?
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