How to bleed cooling system on BMW E46

In this video we're gonna show you how to bleed the cooling system on BMW e46.
Thanks for watching.

[@inroll1]

Sound advice. Just replaced a water pipe elbow that perished. Love and behold, pipe went to extremely high pressure and needle was climbing fast. After watching this video i can admit that bleeding my system cured the problem instantly

[@adambanner8273]

Great help! Worked seamlessly on a 2004 325ci!

[@hannes0000]

Fill the water tank at max,(engine off) Put fans on max high temp and wait ,if needed add more coolant.If coolant is not falling anymore close watertank,open bleed screw a little so that air can come,start engine and watch bleed screw,if there is no more bubles coming youre done.But dont forget to check coolant level again to add some after bleeding.

[@Sir-Kay]

You dumb thing, so "if needed add more coolant" tell me how is anyone on earth going to bleed a cooling system at least in a BMW without adding coolant? so, the thing is, you don't use the word "if needed" as you definitely need to add coolant. Secondly, After putting the fans on max temp before filling the water reservoir, you need to open the bleeding screw so as to watch it let out water bubbles as you fill the reservoir, you'll continue this until ONLY coolant is comes out. Screw everything back on, start the engine and check for leaks, refill the reservoir if coolant level drops and repeat the process is problem persists.

[@EastCoast_883]

Thank you for this video!!! Helped my wife’s car out immediately! Had the coolant light on. Checked and it was bone dry. Did this and worked like a charm

[@Zeiten]

Glad to hear it, you are welcome

[@jcmostert852]

@Project_ OBS Is your car still running fine after doing this?

[@jcmostert852]

Project_ OBS .

[@EastCoast_883]

JC Mostert yep still running fine

[@crazymere7117]

Bro that means your car has a leak lmfao.

[@blackpassenger]

great vid. just had my radiator replaced on my 2000 320 and now theres coolant seeping from the bleeder screw. Is that an indication that it wasnt bled properly?

[@Yophillips3272]

Thank you, this video is the best one on youtube to bleed the coolant. And forget the green coolant haters they probably don't even own BMW's and they probably don't know their crapped out 97 Hondas take blue coolant too.

[@Zeiten]

Thank you, yeah i ignore those blue coolant warriors😂😂

[@joelcuce]

Well, color has nothing to do with the coolant specification, BASF G48 / VW G11 can be blue/greenish..

[@AnthonnyAndria]

I will recommand to use bmw coolant only. If 10$ is the problem for you so i suggest to not buy a bmw. Those engine components were developped considering coolant chimical proprieties. If you prefer to trust a guy that doesnt know what he's talking about then that's your concern. There is no "electrical pump" in there cars, the heat is turned on to open the electric thermostat then the coolant can run into the large circuit. But if the guy with engine light and some other issues tell you that there is no problem with green coolant, so that most be true...

[@adriankandalski5117]

@@AnthonnyAndria have you done a video on how to bleed the brakes? No? Shut the fuck up then

[@AnthonnyAndria]

@@adriankandalski5117 who talk about the brakes here? Little boy

[@MrsCarterWhite]

THANKS FOR YOUR VIDEO!!!

[@startingtech3900]

thanks guys worked for me but i used the blue European coolant

[@Doev]

im on my 4th coolant tank for my e46!!! I now understand that BMW does not like China parts! The only one that clamps down correctly without a hassle is a BEHR OM TANK. I just had one, but did not bleed correctly and busted the o ring. I put the cap on too prematurely and couldnt turn car off in time before it popped the bottom. smh ...I then got desperate, bought a cheap Dorman from autozone, didnt fit correctly, lasted 1 day. DORMAN is complete trash! do not buy! only buy BEHR which is OM, or from BMW directly! all tanks are a pain on a bmw e46 honestly, but so far BEHR snaps on easiet. When my new one comes, i will follow your process to a T! this week has been hell for me! Thanks for the video! BLESS UP!!!

[@AbdulHaq11901]

Yes the chinese tanks never fit! I had to reuse the mahle one

[@justintaddei]

Does anyone have a source for all of the test codes like the one in this video? I've been look for a list of them for years

[@jerolvilladolid]

You still have to start the engine, allow the thermostat to open, so the coolant circulates through the system. Air trapped in all the nooks and crannies can only escape when the coolant is circulating. Then have the bleeder screw cracked (meaning half open), so air can escape, and the expansion tank fluid will go down (coz the air is replaced by the coolant). Keep filling in more coolant until it wont go down anymore. I did this and the car literally took 4 liters more coolant!

[@timmykrakcorn8355]

And Jack that side up so the bleeder valve is the highest point

[@rondjeee]

Coolant starts circulate because AC is pushed on,and the temp is on the highest setting, so no need to start i think

[@evanpfenninger6227]

Incorrect. Proper bleeding procedure on an E46 the car should not be running. Key should be in the ON position with car not running.

[@jerolvilladolid]

@@evanpfenninger6227 I dont know anything that can be bled without circulation. Even humans cant be bled without a heartbeat. Do you have an E46 to make such claim? I do and I performed that procedure myself.

[@evanpfenninger6227]

@@jerolvilladolid yessir hahaha been around E46s a long time. Look in the Bentley manual for the E46 and look up proper bleeding procedure. You will learn something

[@Bledi838]

Great advice and work......excellent.

[@jakabsandor9088]

It's great, thats is possible for e46 facelift 2002 320d?

[@vaqueritojr1]

Great DIY. Thanks for the major help!

[@Zeiten]

Glad to help, thanks for watching

[@mig6220]

never seen it done this way. it's always worth the ignition on (but not started) while pouring... I'm having problems with mine done the way i said earlier. This should be worth the try. After getting it bubble free, did u pull the extra coolant out?

[@Zeiten]

Yes we bled a little through bleeding screw on expansion tank by opening it a little bit while the car was running first to make sure there are no bubbles second to get rid of extra coolant, you can check the coolant level only after car cools down completely 5-6 hours

[@2pacalivesm]

Miguel Branch yea I thought that 2

[@luisjulianpacheco7664]

Ignition has to be on not the engine but the ignition turn on your heater to the fullest so it can pump out quicker

[@Blu3Ey3s888]

Good video! Thank you

[@tspark1071]

excellent job

[@ironik4400]

You’re supposed to use blue coolant… bmw or even European coolant. Green is gonna increase the time you have to change your coolant system. E46 have really weak cooling systems. 85% of the issues with many e46 will be coolant related.

[@Renee_R343]

Nope, at least e46 330D requires a green coolant.

[@900Yugo]

@@Renee_R343 But that's not conventional green coolant. That coolant is called Glysantin G64,BMW calls it HT12. Traditional green coolant contains phosphates.

[@herlegz6969]

Yep, not using coolant that meets BMW spec is bad.

[@900Yugo]

@@herlegz6969 Volvo also uses the same coolant as BMW.

[@toddhewett1027]

At this point what does it matter. I used toyota stuff in mine.. the red coolant.

[@DavidSilva-mr5jm]

Is it possible to bleed the cooling system without my heater blower working.my A.c unit doesnt blow air

[@elianionel]

Hello, and for diesel engines the engine coolant is drained, or only for gasoline engines

[@rondjeee]

I think on the end of the video you have to let coolant out of the reservoir so the dipstick is just above the top, you can see it on the stick inside the reservoir, rest is good i think

[@LeonZedd]

What if you can’t see your dipstick? Like it’s gone missing lol

[@rondjeee]

@@LeonZedd buy a new coolant reservoir if you have problems with the level or you dont have problems?

[@LeonZedd]

ROהԺ ahh I thought so. The dipstick is actually not there lol 🤷🏻‍♂️

[@LeonZedd]

ROהԺ the car doesn’t overheat or anything as I’m keeping an eye on the temperature everytime . I’ll replace the reservoir ASAP

[@rondjeee]

@@LeonZedd it also can be on the botton of the reservoir or if you fill you see the dipstick coming to the top or it is actually gone but how that can happen...? But it is a indicator to check how it should be so

[@gabrielfade8908]

Bmw makes Peak coolant now?

[@jeffs.8667]

Totally worked!

[@vasylmagura3280]

I read the comments on this video and laughed. You did a good job my man! Universal antifreeze is compatible with ALL engines...And for those that are arguing about what manufacturer recommends, think for a second....they engineered & designed this piece of sh*** car that always leaks & burns oil, coolant, & needs full suspension overhaul every so many miles, do you guys really think they know what coolant is best for this car? Also the only oil you should trust in a performance car is Mobil 1, not Castrol LOLZ.

[@jorgemora7190]

Very good job thanks for your time 😅

[@dinisluis9198]

porque que o BMW X5 de 2005 LPG falha muito guando fonciona com LPG?

[@bankomartinov7925]

Good job ! Greetings...

[@Zeiten]

Thank you

[@anthonymaresca4839]

I changed my whole cooling system and I keep having leaks at my oil cooler. The coolant side keeps coming loose after I drive the car for awhile. When I fill the tank back up I’ve always filled till I seen coming out bleeder then I stop. I never waited for bubbles to stop forming 😮I’d just close up the tank, close the bleeder screw and be on my way till it started leaking again. Usually same day or the next. Is this why? Cause I’ve been bleeding wrong?

[@farrukhsheikh5118]

Hi there, i have done everything on the video to bleed the system. During the test on the dashboard. The digits were showing up as 50 in the beginning and then went up to 80 after about 8-10 minutes. I was just wondering how i could change the digits to celsius as i believe it was showing as fahrenheit. Also it isn't coming as hot as it should be, is there any suggestions as to what it could be and what i could do? Thank you

[@Zeiten]

Hi the digits on the dash are at celsius, normal operating temperature of this engine is 92-98 degrees, drive it around with heater on and open the bleeder screw a little bit to see if any air comes out while the car is running and hot, sorry for late response

[@shanmel5600]

Do the car have to be crank

[@fredmelendez4547]

hey man will bleeding help any with a car that overheats? ive replaced thermostat and waterpump .. fan works good and there is no leaks but still overheats

[@Zeiten]

it definitely should

[@fredmelendez4547]

Zeiten LLC IT DUDE 🖐 thanks bro

[@fredmelendez4547]

UPDATE bleeding it actually worked ... never over heated since

[@iibooradley1166]

my car does that little hesitating thing when its cold also... i thought it was just mine. nice vid ill try this in a minute. i just replaced the radiator/expansion tank, because my fan exploded when i was doing doughnuts, and took out my radiator and expansion tank... but my problem is i dont have heat even after bleeding, it worked fine before. do you have any advice? i have a 2000 328ci

[@Zeiten]

hi your car hesitate most likely because of the air leak, if you completed the bleeding procedure correctly and still no heat check for heater valve probably stuck closed

[@johnnycash1365]

Thermostat. I'm guessing by now you've blown your car up though by driving it like a knobhead.

[@iibooradley1166]

@@johnnycash1365 nope, i replaced everything and its still running smooth as... its supposed to

[@iibooradley1166]

@@johnnycash1365 i do have it up for sell, if your interested. 180k on the dash, and purring like a kitten lmfao

[@johnnycash1365]

@@iibooradley1166 lol

[@joseandujar5495]

Correct me if i'm wrong,but that model bmw doesn't have electric water pump,i can see the fan blade spinning,so the water pump is belt driven.and why he didn't put the fan shroud back on.

[@joseandujar5495]

The heater control valve is electric,that's why you must turn your temp control to high heat so the antifreeze can circulate through the engine.

[@kenyonbolden9765]

Have 2011 bmw750li when I first put coolant In used universal just a little to top off then I used pensostat nf am I still good

[@Zeiten]

in newer engines its better to use blue coolant definitely, i believe you are talking about pentofrost nf which is good for your car

[@davidballesteros2862]

Un video para poder quitar El deposito de antico gelante como lo Quito see rompio

[@xnitrodan1808]

Im at 360,000 on my bmw 1999 323i never replaces engine or gasket. Been running green coolant for ever no problems.

[@themostfeared8633]

Nitro is that you in you're display photo

[@willb273]

@@themostfeared8633 Someone's thirsty...

[@willb273]

Judgement day I’ve seen my share of naked Irishman, there was nothing “big” about any of them.

[@themostfeared8633]

Bieke what ethnicity are you?

[@startingtech3900]

i just bought one e46 euro for 300$ with m wheels and full tint bitch is clean bro i replaced 3 02 sensors a temp sensor all fluids, plugs and fuel injectors, everything works the 02 sensors got leaked on by the valve cover gasket i had 6 codes when i bought it a week later its all fixed and actually just passed california emissions no problem so dope, coilovers are in the mail

[@AlensJermacans1]

goood video

[@barryeaton8868]

Hi mine is a e46 m3 so how do I bleed mine no screw hole next door to my tank thanks

[@benallbaugh]

Thank you

[@giri4903]

Hello .I just got my car back *e46 330d after replacing the steering pump. But i think they done something with the coolant tank. Now i see low coolant warning. When the engine is off i can see it has coolant inside. But when i start the engine the coolant disappearing somewhere. is it normal? But its restore back ASAP once i switched off

[@momodouceesay4457]

Check out the radiator coolant sensor or leakage

[@wellokayyes1266]

Surprised this worked without the car jacked. Guess it depends on the mood of the car somewhat. For me the struggle is real.

[@JB12132]

Thanks for this, I have been chasing my air bubble for a while so going to use this process to finally get rid of it, as so many people claiming the right and oly procedure out there. Can I ask, once I have done this process if I take the car for a drive get it right up to max heat, can I pull over open up the bleed screw a few turns to get any extra air out and then tighten off again whilst keeping the ET cap on all the time? Is it okay to do that? Then park up let it go cold - check the level again in the ET. Can an air bubble too stubborn to get out using this process? Sorry amateur who only knwo about the outside not the inside of a car. P.S. nicely handled with the green coolant haters on here. Ultimatley there's the millions BMW spend on marketing and their of wording things is to deliberately make us fear missing out and to have to have peace of mind so we must pay their prices. Other companies just shut up and make great stuff without the added value and our cost of fancy marketing. :)

[@Zeiten]

Hi and thank you for understanding about green coolant conversation, and yes you can open the bleeding screw a little bit while car is hot if it comes out without bubbles your bleeding procedure is completed, to make sure the level is good let the car sit over night. If you have more questions please don't hesitate to ask, thanks for watching

[@spencer1803]

what you said about the coolant is not true. any coolant other than BLUE BMW coolant will corrode the inside of your PLASTIC COOLANT PIPES. they will especially corrode the 2 heater pipes the are under your intake manifold. they will make the heater hoses break off into the engine when you try to remove them.

[@JB12132]

Thanks so much Mr Boner. I only use the BMW blue been as I am on a 2053 plate as the engines before 1999 were of a different compound.

[@RevoltingSnakeman99]

Jonathan Bacon LOL @ Mr. Boner!

[@BalanceOvOpposites]

So when this video ends is when you put the cap on? Even though the coolant is up that high?

[@Zeiten]

yes, car has already reached normal temperature and any fluid expands when hot, so check coolant level after it sits over night and add or suck some out if necessary

[@bimmer1110]

I did the temperature test on my e46 in the morning and it was showing 50°C????

[@datkagurasashvili5020]

This is valvetronic engine?

[@mrregal8263]

I seen that car at the pick a part same green coolant

[@thinkingagain5966]

Lol

[@bergrud]

Just have to Ask. Did you really Get rid of all air here. Or did you have to do it again.

[@Zeiten]

all out in a first try if done correctly

[@bergrud]

I can see now Its n54. N46 need electric pump.

[@sterlingwitherspoon5709]

Great

[@steveholliday6684]

Thanks

[@nicholashazlett4369]

Oh god, forget this. Turn the key until the dash lights up. Hold the gas for 15 sec (this will engage the electric water pump) walk to the pressurized water pump. Open the cap, crack the bleeder valve (as in the video) and over the course of 15 min the system will cylcle if all is well with the electric pump. Add coolant as needed. This works on bmws' with an electric circulation pump (i believe all post m52 engines, not 100% on that)

[@amritk5173]

so incorrect lmao. m54s cooling system is almost identical to the m52. this is misinformation.

[@RogerTannous]

what's the purpose of turning the heater on before turning the car on ? Doesn't turning the car on then immediately turning on the heater serve the same goal ?

[@Zeiten]

It opens heater valve and lets more air to get out without any pressure

[@talhasheikh7719]

Hey friend, I have 2005 325ci and only heat comes from the vents. Even at the lowest setting, blazing heat. Any ideas? Engine temp is normal

[@Zeiten]

hi, check the heater valve probably stuck open, its located on driver's side under first intake boot

[@nawazwaseem2219]

Distilled OR deionized water..

[@adrianchristensen2964]

Blue coolant BMW only, please make sure your coolant systems are bleed out if this is a first time diy ..... keep the 46s alive out there guys

[@Fingerboardmaster200]

been running on green and performs as it would on blue

[@htcfreak15]

I heard that bmw recommends the blue Bmw coolant for protective purposes. But the problem with Blue Coolants is that they evaporate way faster which gives you a coolant smell throughout your engine bay without having an actual leak. And I also see this issue with alot of non Bmw's that come to the dealership with coolant odor complains but no leak.

[@bellaollie2037]

amen broha!

[@AnthonnyAndria]

@@htcfreak15 yes you may be right, because the coolant cap is designed to evacuate the overpressure in the system thats why there is some white deposite near to the cap. Please check this cap maybe twice a year, you should feel a moving thing inside when you shake it. If no, then the clapet is probably stuck and can't evacuate the pressure anymore

[@coomch5596]

You can use any colour of coolant if it meets the specification requirements BMW N 600 69.0 and is nitrite, amine and phosphate free. Check Penrite’s OEM Green coolant for example. Literally approved by BMW.

[@battle.boy2319]

How far can I drive my bmw if the coolent low light is on

[@Welesly77]

Slightly off topic, but I have an 06 X3, need to pressure test the cooling system. Is there an economical adapter that threads onto the expansion tank so a cooling system pressure tester can be used? I see them in a few vids, but no mention of who makes them or where to get one. Thought you might know. thanks in advance.

[@Zeiten]

Hi, check harbor freight tools, they have plenty affordable pressure testers with adapters, otherwise eBay but kits over there more pricy.

[@donaldroll8044]

G11 or G12 ?

[@donaldwhiteman3224]

My coolant cap was barely on due I need to bleed it now, it over heats.. please help

[@carloslargaespada6051]

You probably lost coolant check the level delete it and see what happens. You might need a new cap

[@startingtech3900]

drain and fill and bleed it properly with the right coolant dont be cheap buy a couple gallons coolant for your e46

[@startingtech3900]

also look into your thermostat/housing make sure you have no leaks

[@ZanderCage007]

what model is this car ? I am facing an issue with my 2003 318i model. All the sudden coolant leaked and every time I pour coolant and fill to the max and go for little drive. the coolant leaks and It went to red zone temp and I parked right away. So can you assist what can the issue be ?

[@Zeiten]

this car is 1999 bmw 328i, in your case you need to find where its leaking from, solve the leak and bleed the system, do you see leak on the ground when car parked? if so tell me where so i can point you where to look first, also whats the mileage on the car?

[@samuelodiase4739]

since I changed my e36 m43 radiator fluid to green coolant I started having hard starting when cold. I need advice on what to do pls!

[@coomch5596]

You can use green or blue coolant as long as it meets BMW N 600 69.0 specs and doesn’t contain nitrite, amine and phosphate. Always mix 50/50 as that is OEM standard. An example of this is Penrite’s Green OEM Coolant Concentrate. Ofcourse don’t mix blue with green (i.e. use what’s in there), but don’t be turned off using green coolant, just do some research.

[@900Yugo]

That is traditional green coolant he is putting in. BMW until recently used G48 coolant(to 2019 model year),same coolant that Volvo(until around 2015) and VW used until 1996.

[@crisschannel2229]

the same system works on e46 1.9 77kw? 105 horsepower?

[@Zeiten]

Sure

[@doedyman6918]

Do I have to do this even though I'm not replacing thermostat and hoses

[@Zeiten]

What are you replacing?

[@doedyman6918]

@@Zeiten nothing just refilling I seem to lose coolant a lot in this car but it's not leaking and I've done this before by watching your video and I'm back

[@Zeiten]

If you are losing coolant there is a leak somewhere, just refilling usually doesn’t require bleeding

[@doedyman6918]

@@Zeiten okay thanks I know how now though

[@Zeiten]

👍

[@gregmartin259]

I have a 2001 325ci and is squealing I don't know where its coming from can you help me

[@Zeiten]

hi, most likely one of the pulleys making noise, easy way to check them is to take out the belt and just spin it with a hand if you will hear noise this is where the problem is, its 3 pulleys on your car, 1 idler pulley sits on upper alternator bolt and two tensioner pulleys for main drive belt and a/c belt. Also depending on what kind of noise do you have you can check the water pump, if it has a lot of play in it that means water pump bearing is about to fail its better to replace, you can send us video of noise that bothers you to [e-mail] so we can assist you more, thank you

[@ryanb7074]

it could also be the water pump going bad, but this being a late reply, maybe you’ve found out by now

[@berlinberlin5106]

I tried this, but my E46 hose gets old in the summer and the temperature goes up to 103 degrees, what can I do to help?

[@gingerfeliciano9531]

Let me know when you figure it out dame.problem

[@iListRealEstate]

103C is fine, 110 is getting warm, 115 is the limit you don't want to exceed.

[@Southized]

Can somebody help me figure out why my cooling fan wont come on ive owned chevys all my life

[@thbigshot101]

Solid video but wrong coolant. It has to be blue, preferably oe bmw coolant, just as cheap as any off the shelf blue coolant. So might as well stick to bmw coolant and not risk messing up ur coolant system since it wasn't designed to be used with other types of coolants

[@abdullahhakkcilbiroglu1022]

I m using pink öne. Am I wrong. Somebody say just add blue colour for my 2001 e46

[@CaliSlots777]

What if you didn’t fill it up like this, do you just start from opening smaller screw and continue to add more coolant and then turn on heater?

[@Zeiten]

It is important to fill it up with plastic screw removed and heater on, the best way to get rid of air trapped in the system

[@alvinlim5392]

rpm start engine on 800-900? mine stuck on 600-700

[@Kpitanu14]

It's the choke, but after a minute it will drop to 600rpm

[@mixtecop]

*bro I had my e46 in the shop last week they replaced the coolant dispenser, seen like they didn't bleed out the system, I have the radiator light on is this why? Any mechanics here?* 🙄

[@Zeiten]

Very possible, after expansion tank replacement cooling system absolutely must be bled, i would say you are most likely one step away from overheating, coolant light on most likely because of pressure build up

[@mixtecop]

@@Zeiten bro you absolutely right my car was overheating yesterday I'm going to do what you did I hope that will take care of it, thanks a lot for replying my question 🖐🏻

[@Zeiten]

Happy to help

[@marcin7403]

Jak bym miał tak uzupełniać żeby tak wylewać tyle płynu to dziękuję. Ten odpowietrznik jest po to żeby wypuścić powietrze z układu. To w jaki sposób to robi to beznadzieja...

[@enemyone5991]

Is the engine running

[@deeznatz2927]

No. You’d hear the fan that’s behind the grille

[@thewolfpackgarage5046]

EnemyOne it is at the end

[@alejandraolivares3386]

What does adjusting the temperature do?

[@wirenchangoer4101]

Opening up the heatervalve.

[@Troymatti]

who told You the heater core has electric waterpump ?

[@alexe4695]

Zack Benjamin the heater hose pump is electric, engine pump is belt driven, I know it's weird but true

[@matthewley6783]

Never heard of an electric water pump before. Only belt driven.

[@aleksaspuzas]

It is belt driven. He meant that heater pump which is electric

[@joseandujar5495]

Newer BMW'S carry electric water pump,and you have to change the thermostat and electric water pump as a unit.they bolt on together.

[@startingtech3900]

Jose Andujar not e46 maybe newer models

[@ndn2589]

only use bmw coolant you could fuck sensors up

[@justinfacer6332]

why you putting green coolant in a bmw?

[@Zeiten]

Because this coolant works just fine and doesn't cause any corrosion or engine damage, all of M52,54,56 engines work great on this coolant

[@Mikesturbinizderti]

Zeiten LLC you are an I see idiot the green coolant is horrible for bmw Iirc it should only be the blue coolant!!

[@charlesprice8012]

How is it bad? As long as it protects from low temps and not corrosive. Where is "YOUR" proof that it is bad?

[@4jup4ter4]

I use the same green coolant in my car as well. It's been going fine for the past 6 years i've had my car.

[@tomasjohnson2660]

Local BMW dealer recommends a green coolant.

[@petrnedostupenko]

Hello, I replaced the radiator on my 328 e46, now it's not possible to remove air from the cooling system, the radiator of the heater is cold at this time and the thermostat does not open after reaching the maximum temperature. Could the pump be wrong? Or a thermostat? Before replacing the cooling radiator, everything was fine. Now I do not know what to do. Thanks for your video, good luck.

[@Zeiten]

hi most likely your thermostat stuck closed, its better to service whole cooling system at once at least main units as water pump, thermostat, radiator lower and upper radiator hoses (if they are already expended)

[@petrnedostupenko]

But tell me at what temperature your thermostat opens? I should open at 97 degrees, but at 97 the bottom pipe is cold

[@Zeiten]

thermostat opens between 95 and 98 on those engines

[@niewissen9912]

Hmm, I didn't know e46 had a electric water pump. Thought they was belt driven. Atleast mine is

[@drazencebic6771]

There is a second pump for the heater.

[@luisvera3060]

He has a chicken drum stick as a shift knob

[@lennydonovan8873]

Damn green coolant u should of just left as is.. need blue coolant man. It's alright to top off but green coolant?

[@coomch5596]

It’s based on the specs of the coolant you’re using. Penrite has green coolant thats OEM approved by BMW. Other brands have green coolant you cant use. If the coolant meets the specs, it’s fine to use.

[@demik1553]

So half Distilled water and half coolant?

[@Zeiten]

yep

[@demik1553]

@@Zeiten even if its BMW coolant

[@Zeiten]

@@demik1553 of course, any concentrated coolant has to be mixed with distilled water

[@demik1553]

@@Zeiten Thanks 🍻

[@Zeiten]

@@demik1553 you are welcome

[@Colt19]

What if my car still runs hot after I bleed it..

[@donshilo2024]

Thermostat

[@basilbcf]

Use Either BMW coolant of Peak for European cars - should be blue not green.

[@ABGproductions1]

This guy using the wrong coolent wtf ?!?!?!

[@therealsaren]

not the end of the world if you use something else than what BMW tells you to, did you know that their transmission fluids never need changing as well?

[@sketchylandbeast4378]

@@therealsaren not true on the transmission fluid. But yes you can use other brand coolant

[@rizaldeyu3912]

wrong coolant

[@startingtech3900]

therealsaren they say “lifetime” fluid bc they are talking about the damn warranty period lmfao which is 60-100k which it can last but who really knows that they need to say that so people don’t get it confused that you never need to change the fluid lmfao my 01 330ci has 330k still driving shifting strong bc I change trans/oil and do all the Maintenance

[@joatmon7621]

Starting Tech what trans oil do you use? So many different opinions.

[@tommygranger585]

My car is overheating after I just changed a coolant hose and now the fan wont turn on. Anyone know how I can fix it?

[@Zeiten]

What year and model is it? Electric fan?

[@bayfinest1938]

@@Zeiten hey i have a 2004 bmw that i brought and it had the green coolet all the way low no leaks and temp normal do i need tl change the Reservoir

[@Zeiten]

@@bayfinest1938 fill it up and check for leaks from reservoir and replace if necessary

[@bayfinest1938]

@@Zeiten okay thanks does the car hold coolet from the the radiator also just in case doesn't overheat

[@Zeiten]

coolant system is closed system if it doesn't leak anywhere coolant doesn't disappear at all

[@coyoluo]

Just imagine the coolant being blue!

[@themostfeared8633]

What's wrong with blue coolant

[@GrahamReid34]

@@themostfeared8633 nothing it's what should have went in.

[@coomch5596]

Graham Reid Depends on specs of the coolant he used. Certain green coolants can be used whilst others cant.

[@AlphaGT-R16]

Green coolant is one of the best you can use in a vehicle...

[@matte_luna]

no, it depends on the car. m54 recommended one is blue

[@morbius1189]

Green!!!!!????

[@texast1311]

Hey I let the engine run and the coolant slowly overflow. Any ideas why?

[@Zeiten]

hi, coolant expands as any fluid when heated up, thats why after bleeding is done completely you need to let the car totally cool down and check the coolant level and add some if needed.

[@rolandbecsi8088]

destillated water does no roast?! wow. dude! no limescale!

[@daikiryoku]

This is over filled. There are instructions in the plastic right next to the expansion tank, you have filled way too much and now the there is no space for expansion

[@mohamedjamalabdillahi9940]

can i do that on a hot engine?

[@Zeiten]

no, only cold engine

[@nstalthebastard]

I have to keep adding coolant about once a week now. Has that ever happened to anyone? I had water pump and hoses replaced last month.

[@haydenriley1782]

clearly leaking fluid or did improper bleeding.

[@nstalthebastard]

@@haydenriley1782 do you suggest bleeding again?

[@billyk3632]

Yellow water only for BMW is better

[@luddeluring]

The E46 does not have an electric coolant pump.

[@Ghryst]

correct. during those "5 mins", start and keep the engine running, open the bleeder screw, and put the radiator cap on. but still, this video is no where near as dangerous as most "how to e46 coolant" videos on youtube

[@ggsaja]

N46 engine has, mine just replaced

[@jonathangrissom7606]

I think everyone should start using the new and improved BMW coolant. It is metallic blue.

[@mrnobody9328]

And it tastes better than the old stuff!

[@dhalsim-1]

For BMW coolant: blue is true, green is mean

[@ts-vu3dd]

Hm. Either I forgot what the color blue looks like or this guys using the wrong coolant 🤷🏼‍♂️

[@jeromevet007]

bleu is the cheap stuff , green is for older cars. this engine should have pink coolant. but if you car is older , just put in the cheap stuff.

[@tonyspecv3445]

jerome vet blue is euro coolant its not really cheap unless you buy a wack brand of blue coolant

[@coomch5596]

it’s all to do with the specs of the coolant itself. just because it’s blue doesn’t mean it’ll be fine. you can use green or blue if it meets the specs.

[@ts-vu3dd]

@@coomch5596 oem is blue. From the dealer it’s blue. Get outta my reply’s

[@coomch5596]

t s it’s a dye mate. if you knew anything about how coolant works you’d know that the specs of the manufacturer can be met with certain green coolants. do some research bud. Penrite make a green coolant that meets bmw’s required specifications. it also has an OEM approval from BMW themselves. stop misinforming people when you don’t even know what you’re talking about

[@stuntcock01]

use BMW coolant