11-11-2019, 04:37 PM | #1 |
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Mosselman Oil Thermostat upgrade DIY
Hey all!
The Mosselman Turbo Systems oil thermostat install is done in my F32. What a gorgeous piece of automotive upgrade, and I am really excited to have this in my car! The install is really easy and something I strongly suggest you consider for your tuned N55 or N54 motor. As we push our engines WELL beyond the factory limits, we need to support how they function! This is a supportive upgrade to help the health and longevity of the motor, and a really good investment in that.
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11-11-2019, 08:54 PM | #2 |
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Great video, but as I wrote as a comment I dont understand why this product has its merits.
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11-11-2019, 09:01 PM | #3 |
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Providing you have the Factory oil cooler, how does this compare to Burger's Sport Oil Cooler Valve?
.
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11-11-2019, 10:08 PM | #4 | |
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Quote:
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11-11-2019, 10:39 PM | #5 | |
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Well...going over descriptions for both, they in essence to the same thing. - Mosselman's solution is an actual thermostat designed to open/close to keep temp at a specific target *Cost = $317.25 (excluding Install kit) + tax + shipping I presume - Burger's valve solution keeps thermostat open, increasing flow to cooler at all times *Cost = $59.00 + shipping I presume Being that the Mosselman's install is relatively straight forward, and Burger's solution is relatively inexpensive (with an easier install)...perhaps give it a shot and express your opinion? . 🍻 Either way, I appreciate your DIY's . .
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11-11-2019, 10:52 PM | #6 | ||
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love your videos btw, very detailed and informative, keep'm coming!
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BMW DIY Guy3001.50 |
11-13-2019, 04:36 AM | #7 | ||
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The Mosselman unit is a true thermostat as in the OEM unit, albeit it opens at a lower temp to keep oil cooler. Thermostat design can constantly regulate to keep temps stable The BMS Spool valve simply replaces the OEM thermostat & keeps the flow to cooler wide open ALL the time This may be good for cars in warm climates - but not so good for cars that drive in cold climates Here in PA even though still November, it was 9 Deg this morning when I left for work - I don't want my oil flowing to the cooler immediately at those temps Quote:
Thanx OP for another great video I'll have to pick one of these up for install in the spring
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11-14-2019, 02:45 AM | #8 | |
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Open flow to oil cooler in cold climes is far from desirable. Either M'man upgrade and $$$ or BMS drop in bypass spring thru fall and retrofit oem stat in the winter....
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11-14-2019, 09:43 PM | #9 |
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Where did you buy this? Directly from Mosselman?
Going to probably do the install on my X3, I thought it looked more difficult but your video will help a lot!
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11-14-2019, 09:44 PM | #10 |
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I ordered from them directly.
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11-15-2019, 12:25 PM | #11 |
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Thanks, it's a no-go for me as the oil cooler on X3's attaches the lines on top, not on bottom. Oh well.
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12-30-2019, 03:38 PM | #12 |
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Anyone thinking of ordering one of these should do so b4 the end of the yr - as prices will be going up
Final cost today when I ordered was $387.31USD for Unit + Gasket Kit
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12-30-2019, 11:34 PM | #13 |
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Might I suggest people to just tick the "performance cooling" box in BM3/MHD instead? Same same - only FREE!!! I'll be happy to receive half of the money I just saved you....ok ok 30% is also ok LOL
The price for choosing a tune without continued development I guess...
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12-31-2019, 07:25 AM | #14 | |
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I'm perfectly happy with my AA flash custom tune. AA has been tuning BMW's for a long time, much longer than either BM3/MHD, & has extensive experience with what worx to increase power & what doesn't. Had their tunes on my last (2) BMW's & current (2) = more than happy with the results I can have any option that BM3/MHD has by simply asking Nic @ AA to write me a corresponding tune for free - I don't need a 'check box' within the tune to get the results. Besides that, 'check boxes' for < or > burbles, < or > roar are simply sales gimmicks meant to attract Honda fan boiz I don't want my electric H2O cooling pump + rad fan running longer duty cycles to 'indirectly' cool the oil. I would rather concentrate on the oil system directly It is true what they say about opinions But we don't all have to agree - I do however, agree to disagree
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12-31-2019, 09:03 AM | #15 |
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I'd be curious to see a blackstone oil analysis of a car that has used aftermarket oil cooling on an N54/N55 to see if there is any real world wear benefit. A cooler engine bay is good in the sense that it is less wear and tear on electrical components and plastics but good synthetic oil should be able to run well above 250 degrees without an issue. There is a school of thought that you want your oil to reach at least the boiling point temperature of water (212 degrees F) so any water build up would discharge as steam but I don't know if that is relevant with modern engines with tighter clearances. Just food for thought.
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12-31-2019, 09:27 AM | #16 |
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I was told by MM that oil temps should remain stable for my app + add-ons @ ~205 Deg C (221 F)
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12-31-2019, 10:47 AM | #17 | |
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He explained the option and it works for me. I've experienced excessive temps on other tuned cars in our summer heat and am glad to have this option.
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09-12-2020, 05:08 PM | #18 |
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I finally installed mine two weeks ago. I’d been waiting for my oil change service to come due. I ordered it in June when they were out of stock, waiting on a new production batch. It arrived as promised early August. The thermostat was only $310, plus $39 sh, direct from The Netherlands.
I hadn’t seen this video - but the install was very straightforward using just the provided instructions and the Bentley manual. To me, the key tips are being thorough with sufficient rags coverage to catch the oil drippage and coolant when removing the existing housing, and plugging the ends of the coolant lines mid-swap. As an engineer I was initially impressed by its design & manufacture. It looked to make smarter use of my existing N55 remote oil cooler to lower oil temps, and it supports winter warm-up, which is key for me here in ski country. The gleaming billet didn’t hurt.. Now after driving it over the past two weeks, in temps from 98 to 34 deg (lol Denver), I’m also equally impressed with its performance. My 435iX would previously run straight-up on the gauge, 250 deg steady, whether out on a great drive or stuck in traffic, year round. Normal, but a bit hotter than I’d prefer. With the MSL it now never exceeds, and runs a steady 220-225 deg. Steady lower peak/running oil temps by better regulating the existing oil cooling system, without having to run the water cooling system overtime to do so, works for me. Repost of the install ‘money shot’ ..
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09-12-2020, 06:50 PM | #19 |
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I see similar of 25 degrees or so less on average. Great writeup!
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10-19-2020, 12:47 PM | #20 |
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I like how this unit still has a working thermostat and opens/closes when needed. But does this go against the engineering behind the N55 engine?
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10-19-2020, 03:30 PM | #21 |
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Nope. It just lowers oil temp. There's a secondary heat exchanger block that constantly passes heat from the coolant to the oil as a way to warm up the car, so any additional oil cooling only helps. I look at this mod more as preventative maintenance, it's my opinion bmw has so many premature gasket failures due to the rediculously high stock oil temp. I've been running the MSL thermostat all summer and it's performed great, I set target coolant temp to 185 in MHD as well. Coolant actual temp will vary from 80c- 99c and oil temp does not go above 99c
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10-19-2020, 03:33 PM | #22 | |
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