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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY: E90 Oil Pan Gasket and Subframe Drop



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      03-18-2018, 08:14 PM   #177
nerovega
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So yeah looks like its cross threaded. Not able to get my tap on the original threads so don't think that will help.

Last edited by nerovega; 03-18-2018 at 09:31 PM.
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      03-18-2018, 10:36 PM   #178
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Finally was able to get the bolt in. I actually was using a thread restoration tap so not a true threading tap. Finally was able to get it to go in straight after giving up a few times. Crazy how one thing can make a job so much longer.

Back on topic, the job took a long time but wasn't really difficult. I spent more time messing with that damn bolt than anything else.

Thanks for the great write up
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      03-18-2018, 11:50 PM   #179
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Quote:
Originally Posted by nerovega View Post
Finally was able to get the bolt in. I actually was using a thread restoration tap so not a true threading tap. Finally was able to get it to go in straight after giving up a few times. Crazy how one thing can make a job so much longer.

Back on topic, the job took a long time but wasn't really difficult. I spent more time messing with that damn bolt than anything else.

Thanks for the great write up
So you did cross thread it, and just re-tapped it? What size tap did you use?
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      03-19-2018, 01:42 AM   #180
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Yeah it was cross threaded a little. I used a thread restoration tap. Size was a M12x1.5.
I used the tap, a brass wire wheel and a some cleaner to clear out debris.
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      03-19-2018, 08:08 PM   #181
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Sorry if this was already mentioned, but how different is this DIY to a turbo model 335? I plan on tackling this next weekend and it looks fairly simple enough.
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      03-27-2018, 11:26 PM   #182
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I just replaced the oil pan gasket on an 08 328i AT, put oil in and itís still leaking in the drivers side rear corner by the transmission. Is the oil pan warped? Should I try putting more gasket material there to keep it sealed?
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      04-13-2018, 04:16 PM   #183
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Originally Posted by E90Crack View Post
I just replaced the oil pan gasket on an 08 328i AT, put oil in and it’s still leaking in the drivers side rear corner by the transmission. Is the oil pan warped? Should I try putting more gasket material there to keep it sealed?
You don't want to use too much sealant if you used it. I never used any on mine & so far no leaks. Has your pan been dropped or hit in any way?
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      04-15-2018, 09:58 PM   #184
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Just tackled this job this weekend, and it really wasn't too bad. Just takes a lot of time with how much you have to take apart. Slowly but surely everything came apart and went back together.

Instead of unbolting the engine mounts from the subframe, I unbolted the engine from the mounts. I think this is much easier to do. I then supported the engine and raised it. Trying to get as much space as possible. Every small amount makes a big difference to easily get the pan off. I also used the Harbor Freight engine support, which you can continue to tighten and the engine raises. That was extremely helpful in getting more clearance. I used a 20% coupon for it too, well worth the money, and ROCK solid. Just gotta make sure the bar itself is as tight as possible on the side supports. I used a supplied washer to insert in the space between the bar's mounting point to the side supports, and then tightened. This made it much stronger. You'll see when I mean if you buy it. If you dont do this the bar moves too much and you cant get as much clearance.

https://www.harborfreight.com/1000-l...bar-96524.html

I also opted to install some supersprint headers at the same time. A TON of room was made when the subframe came off to easily get these right in. Theres just so much you can do while in there if you needed to. Obviously engine mounts, headers, Water pump, thermostat. All these become extremely simple to reach.

Anyone thinking about it should just go for it. Its really not bad at all, just takes time. Grab some beers and go at it.
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      04-16-2018, 05:08 PM   #185
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Quote:
Originally Posted by KrashFinatik View Post
You don't want to use too much sealant if you used it. I never used any on mine & so far no leaks. Has your pan been dropped or hit in any way?
It could be residual oil trapped in the transmission bell housing still coming down. It may take a few days to clear.
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      04-23-2018, 09:32 AM   #186
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A mechanic recently posted a time lapse video of this job being performed.

2010 BMW 328i Oil Pan Time Lapse (1)


2010 BMW 328i Oil Pan Time Lapse (2)


2010 BMW 328i Oil Pan Time Lapse (3)


Everyone on here seems pretty smart but I'm going to go ahead and point out that you can play the video at 1/4 speed so that you can see what he's doing.

Hoping to do this job myself a month from now.
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      05-18-2018, 07:21 PM   #187
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Quote:
Originally Posted by E90cruisin View Post
...A TON of room was made when the subframe came off to easily get these right in. Theres just so much you can do while in there if you needed to. Obviously engine mounts, headers, Water pump, thermostat. All these become extremely simple to reach.

Anyone thinking about it should just go for it. Its really not bad at all, just takes time. Grab some beers and go at it.


I did my oil pan gasket on my N55 just a few weeks ago, too. While I was there I did the water pump, thermostat and coolant hose p/n 11537588880. A few weeks before that I did the oil filter housing gasket and another hose and few o-rings, too. IMO, it was really good to get hands on, elbows deep with this thing. This thread has really helped out a lot. Now that it's done, I feel even more passionate about my E90. I had confidence to flog my car again with all the new plumbing I just installed. All was going great since then... until last Thursday. POW! I blew apart my intake charge pipe. In went an aftermarket aluminum piece!

Oh, I will mention that I did get the car aligned after I got everything together. Glad I did. Front toe and camber was off. Can't say whether or not my alignment was off before I dropped the subframe (it's a good bet that it was), but it never hurts to throw it on the rack after a job like this is done to be certain.
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      05-20-2018, 09:51 AM   #188
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Quote:
Originally Posted by Rodarbal View Post
Quote:
Originally Posted by E90cruisin View Post
...A TON of room was made when the subframe came off to easily get these right in. Theres just so much you can do while in there if you needed to. Obviously engine mounts, headers, Water pump, thermostat. All these become extremely simple to reach.

Anyone thinking about it should just go for it. Its really not bad at all, just takes time. Grab some beers and go at it.


I did my oil pan gasket on my N55 just a few weeks ago, too. While I was there I did the water pump, thermostat and coolant hose p/n 11537588880. A few weeks before that I did the oil filter housing gasket and another hose and few o-rings, too. IMO, it was really good to get hands on, elbows deep with this thing. This thread has really helped out a lot. Now that it's done, I feel even more passionate about my E90. I had confidence to flog my car again with all the new plumbing I just installed. All was going great since then... until last Thursday. POW! I blew apart my intake charge pipe. In went an aftermarket aluminum piece!

Oh, I will mention that I did get the car aligned after I got everything together. Glad I did. Front toe and camber was off. Can't say whether or not my alignment was off before I dropped the subframe (it's a good bet that it was), but it never hurts to throw it on the rack after a job like this is done to be certain.
Checking the alignment is a very good idea after doing this job imo.
I thought about but never mentioned it when I started this thread.
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      05-22-2018, 03:53 PM   #189
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I have a 2006 e90 330i manual transmission with the N52 engine. How much can I do the night before while I’m waiting for the oil to drain? I ask because I have found with other repairs that inevitable stopping points turn up anyway – not having the right kind of socket extension or needing to use liquid wrench, etc.
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      06-01-2018, 10:41 AM   #190
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Quote:
Originally Posted by Pohsib View Post
I have a 2006 e90 330i manual transmission with the N52 engine. How much can I do the night before while Iím waiting for the oil to drain? I ask because I have found with other repairs that inevitable stopping points turn up anyway Ė not having the right kind of socket extension or needing to use liquid wrench, etc.
You can do a ton down there. Waterpump if needed, coolant hoses, thermostat, engine mounts, headers, 02 sensors, theres a ton you can do down there while the subframe is dropped.
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