HOW TO CHANGE THE COOLANT in a BMW M3/M4 (F80, F82, F83)
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- Опубликовано: 16 май 2020
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Follow up to my COOLING SYSTEM EXPLAINED video where I change the coolant in my 2015 BMW M4 F82. Very simple once you know what to do, especially if you have a vacuum filler with an air compressor.
I used this cooling system refill kit and my air compressor to put the new coolant in to prevent air bubbles.
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I am a Do It Yourself, also known as DIY, mechanic. I am NOT a professional mechanic. I do not have any formal training in the automotive field.
Help Me DIY assumes no liability for anything you choose to do to your car, before, or after watching one of my videos or utilizing the content from this web site.
All DIY repairs or modifications you perform to your car are made at your own risk. Sometimes, even if you've done everything the right way, you can destroy or damage one or more things on your car. You must understand this, but by leveraging knowledge and patience, the probability of encountering one or more problems can be reduced.
Also, if for some unfortunate reason, I do give incorrect instructions and something breaks because you followed my instructions, I will NOT reimburse or pay in any way for whatever cost that may be incurred due to following my wrong instructions.
Lastly, please don't do anything to your car unless you yourself feel comfortable and confident in doing so. 
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This is the one DIY video that’s been missing on RUclips. Thank You 🙏
+jrzf80 I couldn’t believe it didn’t exist either!!! I am proud to have righted one injustice in the world 😁
Thanks for the instruction. Was really quick and painless and got most of the capacity changed out. To speed things up I used some compressed air at the fill points “sealed” with a rag when the draining slowed down.
+Jerome A. Glad to hear it went well!
Thanks for this video... the vacuum device seems pretty well built and a good value. I did this slight modification to minimize the entrainment of air from the fill tube into the cooling system: Before attaching it to the car, completely assemble the vacuum tool. Place the fill hose into a container of distilled water. Take the part that screws into the reservoir and hold it tight against your leg or some other surface (to close off the air path there). Have all valves open except the one going to fill tube. Then attach your compressor hose, and slowly, give a small turn on the fill tube valve (doesn't take much), and you will prime the fill tube with distilled water. Close off the valve to stop the flow. To keep the fluid in the tube, you can hang the tip of it off of something from the top of the hood (coat hanger, caliper hanger, etc.). Then proceed as you demonstrate in vid. This way, you won't pull the air sitting in that tube into your system when you do the fill procedure under vacuum.
+JFritz you’re welcome! 🍻
Thank you so much for this video. Very helpful
+Jose Genao you’re welcome! 🍻
I know this video is a couple of years old and no-one has commented for 6 months, but it seems to be about the only one on the subject and it has been linked on a number of forums and stuff. So I thought I'd add this info, which is from BMW's own ISTA+ servicing software.
The capacities are 13.9 litres for the main engine cooling system, which BMW call the high-temperature circuit, and 3.9 litres for the charge cooling system, called the low temperature circuit.
The specified coolant is nitrite- and amino-free anti-freeze and corrosion inhibitor. BMW's own products are LC-87 for vehicles up to the end of 2018 and LC-18 from the start of 2019. The latter should not apply to the F80, as the last one was produced in October 2018. But M4s were still produced until 2020, so they could be affected. These are different products so, if you have a late M4, you need to check which to use. Something that may help: LC-87 is blue and LC-18 is green. LC-87 is made using a BASF product called Glysantin G48 and you need to look for that 48 when you buy. Some brands call it AD48, C48, ST48, KK48, etc. LC-18 is made by Valvoline and called Frostox HT-12. Both these are to be used 50:50 with water or you can buy them ready mixed and use them neat. BMW actually state that in countries where tap water is drinkable, it is acceptable for use in mixing, so you don't have to use distilled. But I just bought the ready mixed so I didn't have to worry about it.
Both of these products are considered by BMW to be LIFETIME coolants. They do not need to be changed every 3 or 4 years. From September 2003, coolant replacement is no longer part of BMW's service schedule. It's there in black and white. Do what you will with that information.
I have not worked on the main (high temp) cooling system of my car, so I can't comment on draining and refilling. I fitted a (massive) Mishimoto rad for the charge cooling (low temp) system so, obviously, I had to refill that. I didn't bother disconnecting the top hose from the electric pump. It's pretty much impossible to reach. The system seemed to drain pretty well and I didn't need to get every drop out, anyway, as I was refilling with the same stuff and it's LIFETIME. The 3.9 litres no longer applies to mine, as the new rad is much bigger than the stock item. I have no idea how much I used. I did not use a vacuum filling kit, just did it by hand. After refilling and running for a while, I had to top up with a very small amount, after cooling overnight. I have not had to add a single drop more, even after 2 track days. Same applies to the main system. My car does not lose coolant. So, if yours does, you may have a problem.
Just to reiterate what Alabama Man said, With the engine running, the top of the charge cooler is very cold, even after a dozen flat-out laps of Castle Combe circuit. Once the engine is stopped, the temperature of the cooler and intake pipe starts to rise due to hot air sitting inside.
Leaves in the rads. Big problem with these cars due to the layout with all the rads and coolers stacked on top of each other. That horizontally mounted oil cooler is a disaster. Leaves completely block the bottom section of the DCT cooler, if you have one. You have to drop the oil cooler to clear them out. It is possible to do this without completely removing the bumper. You just have to remove some of the plastic undershields. As Aaron says, what's the point in replacing your coolant if you rads are all blocked?
Thanks for all that info! I will reiterate though that NO fluid is ever “Lifetime”. BMW started that when they started footing the bill for maintenance. Per Mike Miller’s maintenance schedule, CHANGE IT if you plan on keeping that car long term
Thanks again I have a lot to do to my car thanks to you 🙏🏼
+carlos ramos you’re welcome ☺️
Thank you! Great video!
+Randy Chen you’re welcome! Hope you’re a subscriber now 😉
OK I‘m going to do this next. M3 is a 2015 so it must be about time....Thanks very much for doing this for all of us.
+Bob Fognozzle glad to help!
I just did this on 6 year old F-80. It worked perfectly. And yes I had to take out a little after the vacuum fill. On a side note I bought one extra gallon of BMW coolant so I changed the coolant in my wife‘s volvo...it was OK but now the turn signals don‘t work.
+Bob Fognozzle 😂 nice!
Beautiful engine bay 🤘💯
+@Top_g80comp thanks! 🍻
Hey, love your videos. They are so informative and I can tell you put a ton of effort into the research before you tackle a job.
Question. Can I move the charge cooler out of the way to loosen the manifold without having to drain the antifreeze? Also, would love to see a video on replacing the oil filter housing and oil cooler gaskets.
+Ryan Phillips thanks man! I try 😁
I really don’t know the answer to your question though. I’ve never fiddled with or removed the charge cooler. If I ever have to do any of those things you know there will be a video!
Thank you sir! I have to remove my bumper to replace a cracked headlight. I will tackle this at the same time. My coolant is overdue for a change.
+Usman A. 👍
Thank you for the video! Nicely done and I'm definitely getting one of the those vacuum fillers. Just so I'm clear, it appeared in the video that you only needed two gallons of mixed coolant for the charged air side to refill. Is this correct? Thanks
+Nick Stoffregen you’re welcome! Yes I believe that’s correct.
Try running the car till warm and then touching the top of the air to water cooler shortly after turning off the car or while it’s still running. Notice if you touch it after certain amount of time after the car is turned off and siting heat from the head of the motor while transfer into the thinner material of the intercooler pretty quickly
+Hdudbdjd Dhidhd someone else pointed that out to me too. Makes sense, thanks!
Finally , how much gallons of coolant in intercooler how much water ? And how much coolant and water in the motor side ?
Im thinking the yellow coolant was from the factory. Mine was always dealer kept, and it has the same yellow coolant at the charge air expansion tank. Thanks for the upload and im already subbed
+@honestychampmilland2007 right on! 🍻
I did this exact procedure and instead of refilling with 50/50 I went 30/70 and added Redline Water Wetter. Thank you for this DIY! Question about your Dinan heat exchanger (because I am looking at the exact same unit)...did you log any change in IAT? Do you do track days? Can you do a review?
+MrLIVELINESOLUTIONS it was on the car when I bought it. Yes it was tracked. Temps were always great!! Sold the car.
When you say your intercooler was warm to the touch were you feeling it after shutting the car off? If so that’s why, you need to feel it while the cars running. It will naturally heat up for a little when the car gets shut off
+Macaulay Cold One yes that’s exactly why! I figured it out after the video, thanks 😊
So you got quick jacks a vacuum bleeder, but you don't have a funnel?? 🤣 Awesome video though very informative. Thank you
+@gerardogalindo8943 😂 thanks!
What happens if you don’t pressure fill the coolant? And just pour in the same amount you took out and just bleed it? When I changed my radiator for my e92 I drained out all the coolant and just filled the coolant tank and did the bleeding procedure there was burping and a stream that was flowing I guess that’s what’s supped to happened and I just kept roping it off until the electric pump stop. Ever since then the car is done no over heat I’m a DIY guy also and I’m still willing to learn new things, did I do anything wrong there? Thank you!
+Jenderson Pen sounds like you did the right thing. The pressure bleeder is just a more fool-proof way of making sure all the air is out of the system.
For the engine side (non vacuum method) how long should you leave the car burping?
+MrJayzion1 at about the 6 minute mark of the other video I did on this I explain it: ruclips.net/video/t_e1gcqbU1g/видео.html
Great info re this. ? for you, i notice my IC tank always seems to be right and the low mark, but my main tank is always over the full mark. this normal? no matter how much i fill my IC tank its always right at the low mark. then seems to over fill my main tank. Any thoughts?
+Shnel M4 IDK if you saw my S55 Cooling System Explained video, but you should check it out if you haven’t. You’ll see that the two cooling systems (charge air and engine) are physically separate, so when you add fluid to the IC tank (charge air expansion tank) it cannot affect the main (engine) tank.
Help Me DIY ok thx
The hose going into the top of the water pump has the same C clip as the aux rad hose. Couldn't you remove that clip and disconnect the top hose?
+Stephen Lafredo maybe? Are you thinking that would be easier or more helpful? Let us know if you try it and if you recommend it.
Where can I purchase that book about the m3 f80 or do you have or website u can I can find diagrams . Thank you
+MAra chan I got it from the previous owner when I bought the car
This Lovely ///M4 was in hospital with drips on and syringes :)...! Hat Off for you guys.
+Solomon Shilaluke hope she’s all better now!
Can you help me understand something? What happens if you put too much coolant in the bucket? Would the vacuum stop completely?
+mineralwhite once the pressure “runs out” it stops pulling fluid in and it will be full!
Hey man is there a reason your coolant was that color? Mine looks exactly the same but maybe a little more brown and it has me slightly worried. Any insight would be great thanks
+fukingrasss different coolants we’re used in the 2 different systems. I assume from the factory but original owner may have changed one. Nothing to worry about 🍻
forusre man, thanks for the response i appreciate it@@HelpMeDIY
How many gallons of coolant did you end up needing?
+Richard Fajardo 2
What coolant is used for the top mount intercooler ?
+MELLtheLEGEND they both use the same BMW coolant. See the link in the description.
Ok.and i have to mix it with distilled water ?
MELLtheLEGEND yes. 50/50. The coolant bottle should have directions
Hi what is water/coolant capacity of the intercooler tank
+veda E 13:45 sounds like 4L
Thanks bud
Yeah man! Hope you’re a subscriber 😉
When do you need to do this?
+Andrew Chow I follow the “Mike Miller” maintenance schedule, so every 2 years.
I'm kind of late to this, but can the dealership replace the coolant in both cooling systems?
+Anthony T sure they can. For way too much money when it’s an easy DIY 😁
@@HelpMeDIY of course. diy is the way to go. I am just wondering if it's an actual maintenance procedure. what is the recommended interval and does it coolant get pretty dirty?
@@anthonyt4981 I can't speak for the dealerships but I think I explained it pretty well between this video and the one I did about the S55 cooling system ;)
Can confirm dealership charged me double cause of the 2 resivoirs... 🤷♂️
@@mactruccsmacktruck1176 I just showed you how to do it, why would you take it to a dealership?! 😂 😉
Quick question, is there any reason why you do not drain the actual radiator of the car to a coolant flush? Compared to other cars for example like a Honda.
+Jay Ventura sorry I think I’m missing part of your question. I don’t know what you mean when you say to drain the radiator “to a coolant flush”
@@HelpMeDIY when you drain the radiator to do a coolant flush I meant to say
@@jayventura3439 the radiator does get drained with this process
@@HelpMeDIY I noticed it was the small charge cooler radiator and the small engine radiator. Isn’t there a larger size radiator? That part wasn’t drained in the video. Thanks for the replies!
@@jayventura3439 look at the diagrams I show at the beginning. They are all connected
What’s the capacity for the intercooler coolant system? Did you I say 4 liters?
+Domke don’t remember off the top of my head but I believe I stated it in the video.
@@HelpMeDIYI watched it back, and verified that you said 4 liters. Yikes! I am down 2 1/2 liters. Time for a new intercooler. I am praying that the internals of my engine are not rusting. Do you think If I unplug the electric water pump, and drain the coolant from that circuit for the intercooler that I could drive the car in the interim? And can you confirm whether the circuit for the intercooler is entirely separate from the engine coolant? Thank you sir!
@@domke7422 check out my video on the cooling system for the F8X 😉
If I need to add coooant to my engine do I do it to both and do I need to mix with water ?
+@nismos3023 more important question is why do you need to add it? Sounds like you have a leak somewhere you need to find. Top off both if they are both low. You can add only distilled water if you’re not adding much, otherwise add 50/50 mixed.
@@HelpMeDIY I need to fill up both because both are low. Do I use the same coolant for the both reservoirs ?
@@nismos3023 yes
Hi i am just wondering what your Oil Consumption like? Mine seems to use a quart every 3K miles is this normal?
Its seemed to use less when i got the car first about 2 years ago it was about 6K miles before i had to add a quart of oil
+sezzzi1 I have no oil consumption. If you do, you have a leak somewhere that needs to be fixed. I change my oil every 5-7K miles.
@@HelpMeDIY thanks i was thinking that.
there is no oil leaks on my garage floor even if i leave it for a few days, nor is there any burning oil smell coming from the engine bay after it turn off .
Anyway could still be a small leak somewhere so i will get it checked out at the dealer thanks again👍
6 ads watching this FML gave up 3/4 way through the damn vid😂😂😂
RUclips premium FTW you cheapskate! 😂 😝
@HelpMeDIY 🤣 good video though in all seriousness