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Old 04-28-2018, 11:46 AM
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Where can I find the cheapest oil pan bolt set

Last year I replaced the upper and lower oil pan gaskets. Now my X is leaking like a sieve. I didn't know I had to also replace the oil pan bolts too. Can anyone direct me to a company that sales reasonable oil pan bolt set for 01 bmw x5 4.4?

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Old 04-28-2018, 12:27 PM
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Go to one of the online part databases and look up the 11 digit BMW part nbr. Once you have the 11 digit BMW part nbr...open a google (or your fav search engine) and type "BMW xx xx x xxx xxx" into the search box and hit enter.

If it is NOT a rare item...you should get a list of results of vendors that are selling that part. Obviously if they have an online presence...there will be a price listed and you can figure out from there what you want to do.

There's also a website that will search multiple online vendors and give you a comparative price list: Furiousmethod.com - BMW Parts Price Comparison

If you haven't already...feel free to save the online part database sites below to your favorites/bookmarks for future reference. They all are a valuable source for more than just part nbrs. The diagrams help with deconstruction/reconstruction if you need to pull something apart, you can see where all the hardware is that secures an item (and the amount in the QTY column)...you can see what other (if any) BMW models use the same part, etc :
  1. RealOEM.com - Select Your BMW Model
  2. BMW Parts Catalog
  3. www.etkbmw.com (this site also has a VIN decoder tab)

Assuming you need #6 in the diagram below (the database lists 23 in the QTY column)...again, type BMW and the part nbr into a google search box. You may even want to check with your local BMW dealership's parts department...sometimes they can be competitive (depending on your area and number of dealerships)...it may be less expensive ordering from them and paying local taxex...versus ordering online and paying for shipping and handling:

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Last edited by Qsilver7; 04-28-2018 at 12:36 PM.
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Old 04-28-2018, 05:17 PM
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Where can I find the cheapest oil pan bolt set

They are normal 6mm bolts. Some are longer and some shorter.

I was short one or two doing a major repair so I bought a couple grade 5 or better 6mm bolts at a hardware store.

The short bolts were the oil sensor is.

Use real OEM to figure out the length use washers to simulate the proper diameter of the original bolt.

It's very common for people to over torque a 6mm bolt use a torque wrench. Pre tighten then all then torque them skipping over each. Over torque and risk stretching the bolt and it won't hold the proper force or crimp the seal and it leaks between the bolts.

Make sure the pan is flat as possible before reinstalling in case that was the cause of the leak.

I wouldn't be opposed to using permatex especially if the pan has ripples
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Old 05-04-2018, 10:38 PM
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Quote:
Originally Posted by andrewwynn View Post
They are normal 6mm bolts. Some are longer and some shorter.

I was short one or two doing a major repair so I bought a couple grade 5 or better 6mm bolts at a hardware store.

The short bolts were the oil sensor is.

Use real OEM to figure out the length use washers to simulate the proper diameter of the original bolt.

It's very common for people to over torque a 6mm bolt use a torque wrench. Pre tighten then all then torque them skipping over each. Over torque and risk stretching the bolt and it won't hold the proper force or crimp the seal and it leaks between the bolts.



Make sure the pan is flat as possible before reinstalling in case that was the cause of the leak.

I wouldn't be opposed to using permatex especially if the pan has ripples
Thanks for your advice. To be clear, I don't have to buy the high price bolts from the dealers and how much torque should I use?
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Old 05-04-2018, 10:46 PM
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They are just normal non fancy bolts you can "buy them by the pound" at farm and fleet. There are a few that are short make sure you get those figured out: you can drive a long screw in until it bottoms to determine which holes are deep or shallow.

I would get grade five. The torque on M6 is normally 10 Nm or 7 ft·lb use a tool stretch a bolt make a leak.
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Old 05-05-2018, 12:50 AM
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Quote:
Originally Posted by andrewwynn View Post
They are just normal non fancy bolts you can "buy them by the pound" at farm and fleet. There are a few that are short make sure you get those figured out: you can drive a long screw in until it bottoms to determine which holes are deep or shallow.

I would get grade five. The torque on M6 is normally 10 Nm or 7 ft·lb use a tool stretch a bolt make a leak.
Thanks, this will save me a few dollars.
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Old 05-05-2018, 07:50 AM
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As for sealant... I'd suggest Permatex "Permashield" #85420 down there, aka blue Hylomar.
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Old 05-05-2018, 09:42 AM
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I would use something like that even if spec just says to use gasket. It's such a larger seal it's destiny and only desire in life is to leak
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Old 05-05-2018, 01:36 PM
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The block is aluminum which is soft. I don't use any bolt that is longer or shorter harder or softer. I don't want any risk stripping the block threads or breaking off a bolt in the block. I don't use anything other than the gasket to get a good seal. The key is the torque sequence. I lightly hand tighten the bolts center out on both sides, crisscrossing in the same manner as a cylinder head sequence. Then go through second sequence at a lower torque setting than spec. Then torque to spec in the third sequence. Because the torque spec is so low and not all bolts are created equal I purchase a known quality brand bolt or pay the extra for OE bolts and use an OE or OEM gasket.

Will be overkill to some here but it is what I do even though I remove the oil pan every other oil change to be sure there isn't anything in there that shouldn't be. I have never had a leak.
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Old 05-05-2018, 03:12 PM
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Where can I find the cheapest oil pan bolt set

Not overkill exactly the way to do it. The "longer bolt" idea is only to turn it in by hand and detemine which of the holes are the shallow holes. Get the correct length they should be spec at real OEM.


I have no problem adding sealant but depending how clean the seat I would be perfectly ok using just the gasket.
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