How to do a coolant flush on cooling system VW GOLF GTI *5 STAGE FLUSH*

Hi everyone hope you keeping well.
So the time has come to flush the cooling system on my golf gti and to be fair it needed an intense flush due to oil finding its way into it. I did a 5 stage flush using wynn's cooling system flush and that did the trick.
#coolantflush #radiatorflush #engineflush
Thanks for watching.

[@pw5192]

Did the same when i had the mk4 1.8t, But i went all out & replaced temp sensor & housing , water pump , thermostat , cambelt & tensioner, pulley, cam & crank seals , lol flushed the system within an inch of its life 😁 i even took the hoses off the heater matrix & flushed that seperatly after , & did the same with the radiator , before i refilled the system i replaced the coolant reseviour aswell , i didnt need to do all that but seen as i was doing a cambelt service i just felt that ill do the lot , i also replaced the engine mounts & a few other parts while i was at it, i sourced all the parts part over a period of a year , all new stretch bolts & all genuine parts at the lowest prices i could find during that year, i loved spending the whole day “literally”Under my golf , it was well satisfying seeing the result afterwards 😁😊 She purrrrd like new & handling was much improved , the heat & aircon in the car was spot on ! Anyway nuff bout mine lol i like your vid Which was satisfying 👍🏼 By the way i flushed it while the thermostat was out after a few flushes while it was in .

[@Mk4heavenHD]

Wow you’ve been busy mate. Car must be feeling like new. Thanks for watching

[@pw5192]

@@Mk4heavenHD Tbh i did a few other bits aswell inside & oustside the car a couple days later, yeah she had a big make over haha i put deep dish bbs alloys on + stainless exhaust , thing is i was gettin her ready to re-map stage upgrade but thought i can get a new vw fresh mileage better hp , so sold the golf & got a polo 1.8gti 6r in 2016 , the person i sold the golf to got a decent 2003 Mk4 Golf 1.8t , admittedly i lost out but at least the new owner had nothing to do on the car accept enjoy 😁 & i enjoyed tinkering with the car .

[@vampir335]

this is the best in depth coolant system flush out there.

[@Mk4heavenHD]

@@vampir335 thanks man👌🏼

[@vampir335]

@@Mk4heavenHD how many liters of coolant did you finally put in

[@JuanBrolo]

This is one of the best coolant flush videos I have seen for the 1.8t. keep it up. I know this is old but still great video

[@Mk4heavenHD]

Thanks bro👍🏼

[@PeterFeltersnatch852]

​@@Mk4heavenHDit is the best coolant flush video. Hands down

[@joelscoffield9770]

We need at least a -40°C here in 🇨🇦 Canada. Just to be safe. It doesn't often get to that temp here but, it's better to be safe than sorry. That car of yours is a beauty. Very clean. I battle with salt here for six months per year.

[@Mk4heavenHD]

Wow that’s cold 🥶.. Thanks bro, Salt is a big problem and I avoid driving mine when I see the gritters out lol.

[@catalin9174]

I need to do same process on my mk4 1.9 tdi and your video is really helpful. Thank you!

[@Mk4heavenHD]

Thanks for watching 👍🏼

[@AH-nw8qg]

As usual, well done 👍. But, no, I won't drink that clear water 😜😁 Just a question : No problem about putting tap water into the system? I would have used demineralized water instead, to avoid any fraction of limestone being inserted to the circuit. Amazing, how you're thinking now about new mods, wheras few weeks ago, you were thinking about may be throwing it. Happy for you that you found again the taste of the GTI ! Can't wait for the next vids 🙂

[@Mk4heavenHD]

A H - Lol I can imagine drinking that 🤔🤮.. Yes you correct mate tap water is not the greatest but to be honest in the north west where I live it’s actually not too limey lol, but having said that my coolant is only mixed with deionised water tho hopefully it should be okay. Yeah it’s crazy to think it looks better then before, glad I kept it. Thanks for watching.

[@jkon156]

I'm using this as a sort of guide for my 08 mazdaspeed3. I also had an oil cooler failure, at 138k miles. What stings is, this car is spiteful. I just did a spin on oil filter conversion and one big bump is all it took for my oil cooler to crack internally, so of course, back up on Jack stands

[@Mk4heavenHD]

Oh man, hope it’s an easy fix on your car.

[@michaelwalsh90]

Great video, it's very satisfying. I find it easiest to find out what the coolant capacity of whole system is and just put in 30 to 40%, of that value of concentrated coolant after you drain and flush with water a couple of times. For my method it's important to use de ionised water for the last flush. You're good to -20 then fine for England

[@seanlyons161]

Videos coming in thick and fast bro. When you put your cup of tea to the camera I thought that was the dirty coolant 😅

[@Mk4heavenHD]

Sean - Ha Ha mate cuppa tea looks pretty close to what came out tho 🤭

[@AH-nw8qg]

Sean : Me too 😁

[@seanlyons161]

MK4-HEAVEN yeah it does look pretty similar. You know the colour that comes out, that looks awful? What cause it? Is it rust?

[@Mk4heavenHD]

Sean - Yes it’s a mixture of corrosion and what seems to be some oil from the old damaged oil cooler.

[@seanlyons161]

MK4-HEAVEN in that case if there is rust inside the radiator, wouldn’t it just keep coming back even after dare I say a few weeks after cleaning?

[@edwardchester1]

Did this as a last resort before getting the garage to investigate seemingly slow coolant flow, no heat in cabin heater and radiator not getting hot. Couldn't work out whether it was the pump, the thermostat, a blocked heater core or a blockage elsewhere. First release of the radiator drain and the flow was quite weak and topping up the reservoir afterwards didn't seem to top up the radiator - opening the drain and nothing came out, plus still not heat in cabin. But, after running and revving the car for a while and releasing the drain again when hot, whatever was stuck seemed to have been loosened and the system started to flow. Ended up doing five refills with water (and there was still quite a few particulates coming out) before it started to run clear. Cabin heater still doesn't seem quite as hot as it used to be but it is quite cold out at the moment. Strangely, this also seemed to fix the juddering clutch and sluggish engine feel I'd been experiencing. Not sure if that was to do with an airlock or blockage inhibiting the engine or just that once the coolant system/stat started working properl again the engine stopped runnin in some sort of limp/low temp mode. Anyway, long story short: this is totally worth doing if you have any of the above symptoms (and of course worth doing anyway).

[@Mk4heavenHD]

Great to hear that this worked for you by getting the crap out of your system. Some people watch this video and moan about how dangerous it is to do it my way but forget that the pressure is needed to blow everything out. Lets hope your core opens up and starts circulating nicely.

[@edwardchester1]

@@Mk4heavenHD Yeah, worked a treat!

[@John-rw9bv]

Absolutely the car‘s ECU will do stuff to cool the car if the radiator doesn’t seem to be able to handle it, usually starting by adding MORE fuel (which goes unburnt) to cool exhaust, or less fuel (lower power) to cool engine block. It might also delay timing of spark but depends on car, but anyway both too much and too little fuel feels like limp mode, but won’t throw an engine code/light unless it happens a lot, because if every time a sensor got too hot it threw an engine code manufacturer garages would be overwhelmed on hot days, or long idles, etc, so it only throws a code if it happens for like 5 minutes and it isn’t cooling enough. Usually driving faster moves the coolant quicker and alleviates the problem - until next time!

[@edwardchester1]

@@John-rw9bv Great insights. Thanks John.

[@عبدالباقي-ح7ه]

my heather not blowing hot air and the two on the driver side they seem to be not blowing air at all, i´ll try that thanks for the video

[@Mk4heavenHD]

You might have a blocked heater core mate, but flush the system and see if it helps. I had a similar issue on my e46 Bmw.

[@romanceninja]

Banger of a video, appreciate it big time!

[@Mk4heavenHD]

Thanks for watching man.

[@renecornelius113]

Thank you for this! It looks easy to now flush my own Polo's radiator! You video is so easy to follow and understand!

[@Mk4heavenHD]

Rene Cornelius - You welcome, Thanks for watching.Good luck with your flush👍🏼

[@hishamabassi2570]

Man big thanks i saw master at work👹 .. i flush my broth a3 1.8t like that and the secret to let the car go 90c for thermostat open and wow all the 7 liter of coolant out. My broth car cooling system return like new.

[@Mk4heavenHD]

Lol that's it Bro ha ha all the crap just gushes out. Glad your brothers car is now running sweet.

[@hishamabassi2570]

@@Mk4heavenHD man i always say person who use tap water in car cooling system need to break his hands.. im happy man with my gti mk6 (model 2011) stage2 (me first owner).. 9 years and run like new. I will keep it forever👿😈 best car i ever have btw your car is amazing also

[@Mk4heavenHD]

Hisham Abassi - Oh nice MK6 stage 2 must be fast. Thanks bro it’s taken a long time and a lot of money to get it to where it is.. the life of modding lol.

[@silvinho485]

Man, at first, sorry for my bad english. I am learning a lot of good thing with you channel. I've flushed my cooling system last week too. There is a problem i having with my car, and probably you could make a video about, and it is the horns, how to verify if thet're working or if is a problem in wires and how to chek.

[@Mk4heavenHD]

Silvio Machado - Hi mate good to hear that you learning a few tips on the channel. I only have one horn on my car at the moment as my boost pipes take up some space. My advice is to take the horns off and connect them up to a battery then play with the wires positive and negative to see if they sound. I’m guessing it’s the switch or wiring to the steering wheel tho.

[@silvinho485]

@@Mk4heavenHD thanks a lot man. I'l try as you sayd

[@Prolabworks]

Hi mate, what problem are you facing with the horns, and do you have the same car Golf gti mk4?

[@Mk4heavenHD]

Deepfabs - Yes I have golf MK4 GTI, I don’t have any problems with the horn I just deleted the twin horns to one for some extra space.

[@ryan_macleod]

Great video! What's that screen you got installed on the driver's side fan above the headlight switch? Seen at 3:07 in video.

[@Mk4heavenHD]

Thanks, that’s an old led display (liquid gauge) that shows various items like boost, iat, oil temp etc.

[@KishanGodugu]

Very useful and helpful video. Thanks for making video. 2 things I wanted to ask 1. My car polo1.2L don’t have expansion tank sensor connected , any idea why ? 2. Don’t have tap system to drain out coolant. Should I pull out the lower side pipe connector of radiator to drain ? Thanks in advance

[@Mk4heavenHD]

Hi, thanks for watching. I’m not sure why the sensor wouldn’t be connected, as for the tap if you don’t have a tap then release the pressure from the expansion tank first then very carefully remove the lower pipe to drain.

[@garns8878]

I'm going to flush the coolant on my mk4 r32 thanks to this video. Once I've flushed it out and have it refilled with fresh coolant should I run the engine with the cap off of the expansion tank to release any trapped air? Thanks

[@Mk4heavenHD]

Okay cool, when I do a flush I run it for very short time while I’m filling up the expansion tank because if you run it too long it gets hot and starts spitting the coolant out the tank. Best thing is start the car let it run whilst you filling it up when it looks like it’s not taking anymore close the tank.

[@garns8878]

@@Mk4heavenHD thankyou

[@Shampoo_Hydrate]

Nice engine bay m8 :) Next time just take the top hose of ress and drain and fill untill clear.

[@Hedgehodge-]

if you are draining this while its hot it leaves nothing for the heat from the block to transfer to anymore right? Wouldnt doing this over and over cause stress on the head/block and causing possible warping? I feel like i should use the compressor vac tool and warm up a lot of water (5 gallons at a time since water is heavy to around 100 degrees F and then just turn it on to fill while the bottom is open). I dont know. if it worked for you it worked :D thanks for the video , hope all is well

[@Mk4heavenHD]

It was okay for me mate didn’t have any issues, once you turn the engine off it doesn’t get hotter and hotter when it’s not running and even if it did it wouldn’t exceed boiling point. With the bonnet is open its expelling heat soak anyways.

[@KBZ47]

Hey bro! Awesome video, well illustrated. Quick question, do you have to mix it with dionised water? If so how many liters? Thanks in advance!

[@Mk4heavenHD]

KBZ - Hi mate thanks for watching, yes you have to mix it if it concentrate if which I did a 50/50 mix. However you can buy pre mixed G13 which you can just bang straight in without mixing.

[@roystonhughes3278]

Another fantastic video making, like share subscribe, topman very helpful in providing you with the best possible experience and information on our 1.8t engines, thank you for your time in making this video.

[@Mk4heavenHD]

🙏🏽 thank you bro.

[@roystonhughes3278]

@@Mk4heavenHD look forward to seeing the next video, hope you and your family are well stay safe my friend.

[@Mk4heavenHD]

@@roystonhughes3278 - thanks bro we all good, keep safe and well.

[@roystonhughes3278]

@@Mk4heavenHD thanks bro

[@black_cupra.performance]

Hi there, good video. I want to clean my car cooling system but I have a question. When you put the wynn's in was this already with warm or boiled water or still with the coolant? If this was already with warm or boiled water it means you had already the coolant out.

[@Mk4heavenHD]

Hi mate thanks, the wynns goes in with the Coolant so it’s the first step before you’ve even started draining anything. Hope this helps.

[@deepeebenzo1817]

@5:00 the experienced blow of an ex masese drinker 😂😂😂

[@Mk4heavenHD]

deepeebenzo - Ha ha ha Yes man! Lol

[@deepeebenzo1817]

@@Mk4heavenHD jokes aside shamwari, another informative vid from you 👏👏👏 I also need to do the same plus an oil system flush as well Looking forward to the next one as always . . . Coolant hose swap, get in there son 👌

[@Mk4heavenHD]

deepeebenzo - Thanks bro, it’s always good to keep the cars happy and maintained. Keep an eye out for the next one mate.

[@t_money_third9654]

You preety brave to have your block and cylinder head bone dry at those temperatures

[@johnny5smokem376]

What is the computer in your right vent called and where can I get one, cheers, keep it up 👍 🍻

[@Mk4heavenHD]

Hi mate they don't make them anymore, but its called the liquid gauge by race diagnostics.

[@mohammedqasim9889]

I just bought a v6 one and the coolant has got bronze looking bits in it i will give this a go do you know what them bits could beM

[@Mk4heavenHD]

Hi Mate, those bronze bits is not a good sign unfortunately. The previous owner has used K SEAL that's what those gold looking specs are. The main reason for k seal is to temporarily fix head gasket faliure or a cooling system leak, its horrible stuff to get rid of as well and you will probably find that after you flush it out the original problem will return.

[@Ryan-mn2dd]

Nice video, dude. Do you have a special coolant drain valve? I have an '03 GTI. Would I have the same valve? Thanks, mate.

[@Mk4heavenHD]

Thanks man, yes there is a little tap on the mk4's not sure if the mk3's have the same. Have a peep under the car they usually in the corner of the rad.

[@alexrobertson232]

Nice video - Cheers.

[@Mk4heavenHD]

thanks man

[@sparkxx64]

Hi mate, excellent video I adopted the same technique from your method. However! I didn’t get clear water after 5 attempts the same way you did. It took me about 20? The only thing I did different is remove the thermostat throughout to get into the jacket straight away. My question is this, how is your coolant holding up now? Any signs of brown or residue?

[@Mk4heavenHD]

Hi Mate, glad you've done yours too it must have been really mucky in there. My coolant is holding up good so far fingers crossed.

[@FenixPajarito]

Help! One Question My Mechanic Did a flush on my mk4 gti 1.8t and when he wentto buy the g13 Antifreeze/Coolant he only bought one gallon of 50/50 because the dealer told hik that was enough. So he obly used one gallon of 50/50 and after pouring the whole gallon in my car it wa not eboug so he had to add water. Will my car be fine?

[@Mk4heavenHD]

It should be fine mate, I always recommend you only use g13 only that’s pre mixed for longevity.

[@FenixPajarito]

@@Mk4heavenHD yes but I thought he needed 2 gallons of 50/50 or 1 Gallon of Pure G13 plus 1 gallon of Destilled water 💦 because the cooling system was empty but if you think my car will be fine its OK thank you

[@Mk4heavenHD]

@@FenixPajarito yes I know what you mean, I would keep an eye on the fluid colour and if it starts to change brown flush it and go full G13 @ 50/50.

[@milvolts1]

Great stuff man, would this procedure work for my 13' Jetta 2.5 SE. It has 155k and I haven't changed the coolant. Thanks

[@Mk4heavenHD]

Yea mate this should work on any car as long as you have a bottom drain. Just be careful tho lol that hot water comes out under serious pressure.

[@hishamelgazzar8024]

Thanks

[@Mk4heavenHD]

You welcome mate

[@mattcrawford6953]

Great video dude... Thanks a lot.

[@Mk4heavenHD]

Matt Crawford - Thanks for watching 👍🏼

[@AM-pbstill1618]

did you pour the wynn’s right in the expansion tank or you drain first? thanks!

[@Mk4heavenHD]

Straight into the tank first mate. No worries

[@AM-pbstill1618]

@@Mk4heavenHD thanks for the reply bro!

[@hishamabassi2570]

Nice man i did it for my a3 1.8t 2001 but man why only 3 liter come out? Did i made a mistake?

[@Mk4heavenHD]

Hisham Abassi - thanks, 🤔 not sure lol mine wasn’t exactly 5 litres it was less tho. As long as the car is cooling and the heating is working it should be okay. If your fans are kicking in and the levels are staying the same you should be okay.

[@hishamabassi2570]

No way we can drain 7 liter like factory say from tap..

[@Mk4heavenHD]

@@hishamabassi2570 - lol yeah there is the heater matrix and other bits that still hold fluid. I thought the same thing many years ago when I did the first flush.

[@bhugeloo95]

Once again, i have the exact same issue lol, my oil cooler broke and i have to flush my coolant which has oil in it

[@Mk4heavenHD]

Oh man its such a common problem on these cars hope you get it sorted bro.

[@bhugeloo95]

@@Mk4heavenHD yeah bro i replaced my oil cooler and drained all the coolant and flushed it for 2 days straight, I used a product called Carlube RAD Flush - removed 97% of all the oil inside the pipework and its good to go

[@Mk4heavenHD]

@@bhugeloo95 -No messing bro, glad you got it sorted. Another happy golf.

[@bhugeloo95]

@@Mk4heavenHD i've actually got the VW Bora 1.8t which is exactly the same as a golf just the shell is diff. Now i have issues with my subframe, heater matrix and coolant temp sensor UGH gotta love a 16 year old car

[@karsten24h]

putting G13 coolant into a car with G12 is always a good idea...

[@danielfl.9347]

G13 is an update on G12... You can use it

[@NaNa-wj8tw]

Absolutely nothing wrong with that at all for modern cars. OAT or HOAT products are far better than the cheaper crap and backward compatible.

[@sashmirmahabeer1005]

Sounds like Michael Naicker

[@Mk4heavenHD]

Lol

[@antonioporra7210]

Mate You using G13 on a G4? Can I sue it on the Polo 9N3? Because I use the G12 in pink,I mam sure that MK4 must be using G12 too?

[@Mk4heavenHD]

Yes mate G13 is the updated version of G12. G13 is what is recommended by VW as they don’t sell G12 anymore due to some of the ingredients being harmful to the environment. You might be able to get G12 in different brands but Genuine VW G12 is not available.

[@IC3KING_ZN]

Are from South africa? Your accent sounds cape tonian

[@Mk4heavenHD]

Originally from Zim mate, everyone says it sounds cape tonian lol.. I suppose zim is only next door tho.

[@mauricio5818]

It's better to use 50/50 coolant to water ratio for rust protection

[@Mk4heavenHD]

Yes that’s correct, my car is now on a 50/50 after I ran it in to see if I had any leaks.

[@nanahcubsemaj]

What year gti is this?

[@Mk4heavenHD]

2003 Mate

[@om96]

I used to have a mk5 and the coolant used to need refilling every week at first and then on motorway journeys and eventually got to the point where I’d fill it up and leave for a 5 minute journey and it’d be empty in like 2 mins anybody know what it could’ve been? I’ve sold it a while back but still want to know what it was lol

[@Mk4heavenHD]

Aish that a hard one to answer lol, that amount of coolant loss could be a serious leak, or the car just burning it up in combustion then expelling it out with steamy fumes. Usually Head Gasket failure consumes coolant but you would normally see MAYO looking stuff in the oil filler cap.

[@om96]

MK4-HEAVEN yeah i was told for white gunky stuff but i never had any of that. It was so weird and annoying i used to carry about 10 2 litres bottles of water around wherever i went and used all of them just to travel like 30 miles 😂

[@Mk4heavenHD]

@@om96 - Thats crazy man lol..

[@om96]

MK4-HEAVEN 😂😂 not crazy enough to deter me away from vw

[@nxthfx175]

Headlift most likely bro

[@nicholaschetty3483]

Where u based bro..can you do a flush

[@Mk4heavenHD]

Sorry mate I only do work on my own cars. Best bet is to find a good local specialist for your car.

[@zabekhurram]

Bro was it ok to flush a hot engine with cold water?

[@Mk4heavenHD]

Hi Bro I wouldn't recommend that, use warm water or wait for it to cool down.

[@zabekhurram]

@@Mk4heavenHD thank you for getting back to me brother, what about if the coolant being used is at ambient temperature?

[@Mk4heavenHD]

zabekhurram - Then it should be fine mate.

[@zabekhurram]

@@Mk4heavenHD all is perfect mate, car is running better then ever. You on Facebook brother?

[@buggaman2009]

Ethylene glycol accelerate rust plain water is enough in sunny season

[@M0N0T0N0US]

Right when I was gonna comment on reaching in from the side instead of the front, you changed positions and did it how I was thinking, then you went back to the front.. 🤷‍♂️

[@Mk4heavenHD]

Lol doesn’t matter which angle you attack it from mate, imagine laying on the same side so many times not comfortable at all. More importantly getting the job done safely is the goal.

[@M0N0T0N0US]

@@Mk4heavenHDyeah, I don’t have to imagine, my mk4 just blew a head gasket after the 4 way coolant flange off the radiator cracked. I just pulled the head off my car, pulled the head out of another one at the junk yard, put the replacement head in my car, changed all the gaskets, put in all aluminum coolant flanges, new timing belt / water pump kit, changed the oil 4 times and then changed the coolant 4 times. All by myself in a one car garage with very minimal space to work. But good job dude! I was half worried I still had oil in my coolant cause of the caramel color. I see now, thanks to your hard work, that it’s just nasty old coolant.. thanks for your efforts!

[@Mk4heavenHD]

@@M0N0T0N0US Wow what a job! I’m glad you’ve sorted it. Mine didn’t blow any head gasket but kept getting brown in colour however since I’ve done the heater core and flushed it once again it’s been okay. I’ve made a video in the heater core replacement. Hope yours behaves now. Keep safe👍🏼

[@digitalunit318]

You should never use tap water in a coolant system. Always use distilled water.

[@Mk4heavenHD]

Yes I agree hence why when it came to filling up the system I used deionised water and coolant. For flushing out the system 5 times water didn’t hurt anything at all, it would be crazy expensive to flush the system with over 50 litres of distilled water as it all ends up going in the bin anyways.

[@digitalunit318]

@@Mk4heavenHD that’s where you are wrong. Tap water is normally hard water. Which means it contains minerals. Distilled water doesn’t. The reason you don’t add flush to antifreeze or tap water is because the flush interacts with the minerals etc. in the antifreeze and tap water and doesn’t perform as it should.

[@game4alaughman]

@@digitalunit318so how would you flush ?

[@digitalunit318]

@@game4alaughman always use distilled water. Regular tap water contains minerals. Distilled water is $1/ gallon. Having to replace head gaskets, radiator, hoses, water pump, thermostat, gaskets, much more expensive. The contaminants in the tap water make the coolant flush product less effective. I flushed my 2017 audi a3 quattro 2.0T roughly 5 times before it came out clear. Probably cost less than $10 in distilled water. Second thing I learned is never use a coolant flush product in a German car. Everything is plastic and ends up with leaky gaskets and doing a water pump on one of these cars is a joke and very expensive. Honestly it's cheaper to just flush it with the actual coolant 50x than causing those issues and how much those cost. If I were to do it again, I would just buy a bunch of G13 coolant and flush it only using that. In the end it is WAYYYY cheaper

[@vadaszmate1400]

I would of put some hose on that so the hot water would be far away from me

[@Mk4heavenHD]

Its not too bad at all mate, if you put a hose the pressure will be too high and restrict the crap coming out.

[@mohamedfaiqhamid5830]

Are you south african?

[@Mk4heavenHD]

Hi Bro im nearly South African lol, originally from zim.

[@mohamedfaiqhamid5830]

@@Mk4heavenHD you sound very south africa

[@Mk4heavenHD]

@@mohamedfaiqhamid5830 lol true the accent is very similar.

[@rhoddin]

Shouldn’t use tap water to flush. Distilled only!

[@Mk4heavenHD]

Correct mate, I flushed it with tap water because the next video was all my pipes being changed to silicone anyway and what percentage of normal water would be left in there is minimal. The actual coolant and mixture was with de ionised water and the car is perfect no issues.

[@paulsheehan2998]

How to flush your coolant if you want a trip to hospital...

[@Mk4heavenHD]

lol I don't think its that bad mate, unless you place your body under the hot water.

[@bena7228]

There's really no reason to open a hot/pressurized coolant system

[@branongable]

Too dangerous way to flush the coolant

[@Mrfurballs]

i own a 2001 golf gti vr6 , I flushed the system but still see brown water inside , previous owner only put tap water in the coolant overflow the whole time he owned the car with little to no concentrate . The issue i’m having is burping the air out of the coolant system . I squeezed the hoses many times , nothing . I tried that process a few times already with no success , i can only get a quart of water in max , theres air inside . Water starts bubbling & boiling out the coolant reservoir and temp gauge starts to slowly rise ( cap off ) . I was doing all this on my drive way that has a incline on it with the car facing down hill . Im thinking that may have something to do with it the way its facing instead of being lifted high up front . How can i burp the system ?

[@Mk4heavenHD]

Hi mate the only way I’ve burped the system is by leaving the cap open from a cold start and letting the car run until it warms up slightly. Just make sure you watching the expansion tank because you don’t want the car to get hot to the point of it flowing out, when I see the fluid start rising I shut the cap quickly and it’s done.

[@Mrfurballs]

@@Mk4heavenHD Thank you !!! I’m still stuck on getting the VR6 golf to accept the distilled water into tue cooling system . I leave the expansion tank cap off the whole time . Also my radiator fans don’t kick on unless i turn on my A/C with the heater on full blast my radiator fans don’t ever kick on , this why my expansion tank of boiling all the water i attempt to put in i believe and so far i’ve been only able to get a gallon maybe half a gallon of distilled water inside with the flush chemical . I ordered a new radiator fan switch though to help with the radiator fans though lol . Any help gives , i cant use tap water because our tap water here in the USA is terrible , tons of calcium in the water and God knows what else lol .

[@pussymonster6707]

Why does it seem like you risking warping your head or the block