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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Mechanical Maintenance and TSBs: Break-in / Oil & Fluids / Servicing / TSBs and Service Bulletin > Aluminum heat sink oil filler cap
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      04-30-2020, 10:40 AM   #1
IraHayes
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Aluminum heat sink oil filler cap

Anyone use one of these, or one of these?

I was inclined to think these were kind of gimmicky at first, but now I'm thinking that if the really do help dissipate heat from the OFH, maybe they will help prevent the OFHG from failing, or at the very least help reduce the odds of premature failure.

If you have an experience with either brand, please share. Any benefit to one over the other?
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      04-30-2020, 11:06 AM   #2
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Discussed here:

BMS Oil Cap Wrench https://f30.bimmerpost.com/forums/sh....php?t=1707694
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      04-30-2020, 02:11 PM   #3
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I have the BMS. I don't see any reason to go with one over the other. Both are ribbed, which also helps dissipate heat.
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      04-30-2020, 03:27 PM   #4
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I bought the CTS one, it turned from black to copper over time. Doesn't bother me though.
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      05-01-2020, 10:48 AM   #5
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Quote:
Originally Posted by IraHayes View Post
Anyone use one of these, or one of these?

I was inclined to think these were kind of gimmicky at first, but now I'm thinking that if the really do help dissipate heat from the OFH, maybe they will help prevent the OFHG from failing, or at the very least help reduce the odds of premature failure.

If you have an experience with either brand, please share. Any benefit to one over the other?
Solution in search of a problem, but it looks cool!
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      05-01-2020, 02:15 PM   #6
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...but it looks cool!
That it does.
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      05-01-2020, 05:05 PM   #7
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I bought it mostly so that I don't need a filter adapter. Much easier to just slap a socket on there.
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      05-02-2020, 08:47 AM   #8
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I bought it after getting an email offer from BMS. I've seen all the posts about the filter housing gasket, and what a PITA is is to change. Knowing why radiators and amplifier heat sinks are made from aluminum, not plastic, I figured why not? And it does look nice, even though I may be the only person to ever see it.
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      05-02-2020, 08:54 AM   #9
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Quote:
Originally Posted by Eschmacher View Post
I bought it mostly so that I don't need a filter adapter. Much easier to just slap a socket on there.
I would imagine this would be the primary benefit.
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      05-02-2020, 06:05 PM   #10
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Quote:
Originally Posted by Eschmacher View Post
I bought it mostly so that I don't need a filter adapter. Much easier to just slap a socket on there.
Me too. I had a hard time getting the oem cover off and said to myself there has to be a better solution. Got the bms one on discount. It does look cool. Never thought about the heat sink idea.
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      05-04-2020, 01:23 PM   #11
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BMS here also, along with Mosselmann Oil Cooler Tstat

And apparently my finger in a couple shots







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      05-04-2020, 04:38 PM   #12
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You must have gone to the same photography school as my wife. On our cross-country honeymoon I drove, she took pictures. We have her thumb in Minnesota, her thumb in Iowa, her thumb in Nebraska, Colorado, Utah and Arizona, and my personal favorite, her thumb in Las Vagas.
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