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02-08-2015, 07:46 AM | #45 |
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I cannot remember but think the whole white piece came out because I used a socket since I felt like a screwdriver was stripping the bolt.
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05-23-2015, 08:59 PM | #47 |
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Do we have electric bleeding pump in our cars? And I've read that we do have block plugs, 2. One on each side towards the back of the block. Anyone please check
Last edited by M3Bimmer77; 09-02-2015 at 09:15 PM.. |
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05-23-2015, 10:11 PM | #48 |
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Block plugs are above the wings in the rear of the pan below the header merges. Not visible without inspection mirror maybe, but you can get a hex socket in there with a u joint and work blind. 2, one on each side.
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05-24-2015, 10:52 AM | #49 |
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That's what I've heard PB. Going back to the question about having to use BMW coolant I read that it's Pentafrost NF. Reading the specs on the webpage it is recommended for all BMW models. The coolant is blueish - greenish semitransparent color and is LONGTIME not LIFETIME as Pentafrost SF is, but SF is not recommended for BMW. Why? I have no idea. The only difference according to the specs is that NF has silicates. This acts as a protective layer between the metal and the water to avoid corrosion. Both products do not contain any amines, nitrites or phosphorus. It says that is recommended for non ferrous systems.
Last edited by M3Bimmer77; 05-24-2015 at 11:02 AM.. |
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07-18-2015, 12:28 PM | #51 | |
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Found the block drain screws. As descried, they're by the header merges. I could see them without a mirror. Mine were 5 mm hex. Had to use a 1/4" 5 mm hex wobble and two 1/4" extensions to reach it. Major PITA. Coolant will drain everywhere of course.
Best picture I was able to take: A little further out so you can see the general vicinity: Mess: Quote:
First I tried just replacing the blue plastic screw with the brass one, but the brass one was a larger diameter. I thought perhaps the brass one replaced the whole sleeve so I removed the sleeve but it still doesn't fit (apparently the sleeve isn't even threaded). I broke the plastic sleeve so need to buy a new one now.
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07-19-2015, 07:19 AM | #52 | |
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07-19-2015, 07:18 PM | #53 |
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Oh yeah, you're right. The brass screw is the bleeder screw for the expansion reservoir. I was hoping it'd replace the plastic radiator drain screw.
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08-04-2015, 11:40 PM | #54 |
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Have we been able to figure out the total capacity? I want to run a 75/25 mix, so I just want to drain enough that topping it up with distilled water gets me 75/25. Without knowing the total capacity I can't calculate how much to drain.
Edit: Looks like it may be 11.4 liter / 12.1 U.S. qt / 10 imp. qt Last edited by unknownNTT; 08-06-2015 at 03:32 AM.. Reason: Found out the info I asked for |
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09-02-2015, 07:28 PM | #55 | |
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09-02-2015, 07:30 PM | #56 |
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did you guys consider a pressure infusion of fresh radiator fluid? would that be a good solution go just flush out entire thing at once?
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10-19-2015, 01:00 PM | #58 |
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01-22-2016, 12:06 AM | #59 |
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I was browsing through the TIS and came across the capacity of 11.5 liters, which translates to 3.04 gallons.
http://workshop-manuals.com/bmw/3_se...est_e92___s65/
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08-28-2016, 11:06 PM | #60 |
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I'm thinking of doing a coolant change soon. I'm not sure if I want to mess with the engine drain plugs, and I am contemplating an alternate method of flushing the whole system. Rather than draining and refilling with new coolant and wasting it, what if I drained and refilled with distilled water until it came out clear, then on the last fill use coolant only. I read the radiator plug drains about 1 gallon, so 1 fill of straight coolant would result about 70/30 mix. I'm in FL so I'm thinking the higher ratio may keep the car running cooler. Any thoughts?
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08-29-2016, 03:45 PM | #61 |
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70/30 coolant/water or water/coolant? More coolant = worse cooling, if that's what you're saying. Coolant does not transfer heat as quickly nor hold as much heat as water. Google "hydrogen bonds" if you want to know why
For a Florida car I do'nt see why 70/30 water/coolant would be a bad idea, assuming it never gets below 20f or so
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08-29-2016, 08:16 PM | #62 |
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yes, water to coolant...
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08-30-2016, 06:24 AM | #63 | |
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08-30-2016, 11:43 AM | #64 |
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I'm not completely opposed to the block drain, it just didn't sound like an easy thing to access and its not really clear to me the best way to do it. How difficult is it to remove and reinstall/torque the block drain plugs while laying under the car? Is there risk of damaging them and should I buy replacement plugs? Does anyone know the torque spec? Also what size drain pan would I need to avoid splashing coolant all over the garage floor? Maybe I'm overthinking it and need to just try it amd see how it goes...
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08-30-2016, 03:45 PM | #65 |
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Something like a concrete mixing tray from lowes or home depot would be great. You are working by feel. You need an allen socket. Might be 5 or 6 mm. Probably a u joint and an extension. Its not big torque due to the thread size but I dont have the spec. New sealing washers would be ideal but I reused the old ones. PM the guy above who did it more recently than me. Looks like he had a lift as well but I dont think you need one if you can get the car high enough to get under it.
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09-02-2016, 03:34 PM | #66 |
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Here's an alternative where you don't even need to raise the car: Coolant Flush Kit.
[u2b]https://www.youtube.com/watch?v=Y2CAr2pOva8[/u2b]
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