Bleeding e46 cooling system, fixing my mistake

Bleeding my pos bmw cooling system after I broke the radiator drain.
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[@heinz-dietersindhoff7344]

Lovely Beers after a completet repair mission- well diserved 👍🏼

[@wellokayyes1266]

I just went through something similar, bought a duralast radiator at autozone, had to tape the head of the plug to seal from leaking. Also radiator is 2mm too wide, etc. Getting nessins from fcp next week, hope it's much better. Also got an extra adjustable radiator plug, jic.

[@pianothatilove]

Thanks for sharing buddy, I truly feel you pain in regards to the coolant system of this car. Best advice is to get it done properly, empty all the air bubbles just as you did and keep monitoring it every now and then

[@KilliKonKarnage]

Hey, so I bled the system I believe properly with heat on max and fan speed to 1 (my car is the cheap AC unit with 1-4 fan speed dials.) I then just saw coolant dripping out of the bleed holes and so started the car engine and started to screw down the bleed caps. Whilst doing this, I was draining excess coolant so that it meets in the middle between the 2 round marks. The coolant was now quite warm. I went for a drive, seemed fine, heating working and coolant temp in middle. I parked the car, waited longer than 4hrs then checked my Coolant expansion tank reservoir and the stick was right at the bottom. Did i make a mistake or just the coolant became cold and needs refill?

[@deathlotos522]

@@KilliKonKarnage just add coolant :)

[@ReignRapid]

Wait only blue ? i tried telling my machinic people this and they told me its just a stupid thing they say to make you buy their branding and the only difference is its dye lol :b, the blue was cheaper where i was for some reason.

[@eyeballroombama]

I would get new mechanic people, dyes may be present. Look up OAT and HOAT coolants. Next time you are in the parts store read the backs of the containers and you will see they have different additives. There is a lot more too it than “branding”

[@user-ki4llalm6kr]

My e46 had been driven with purple G12 previously. Then I put bmw blue just to make sure. Any kind of coolant is coolant, it's a 20 year old car, don't sweat it. Americans drive it with some kind of green coolant, eu - purple. Only difference is that 1.5L of bmw blue is 13€ whreas 5L of g12 purple is 18€, speaking for EU.

[@ThatOneCatNyx]

It dedends on the additives mainly. You can safely run any color coolant so long as it has the same chemical makeup as the OEM BMW coolant. Since the BMW blocks are aluminum there should be (apparently) no nitrites, nitrates, or another thing that I am forgetting. I have run OEM blue in one E46 since it was new and the other green. They look the absolute same on the inside, just the green one doesn't show leaks as well as the blue does. I would reccommend the blue for this sheer reason- You can see a leak a mile away with it.

[@eyeballroombama]

@@ThatOneCatNyx The additive packet is what makes the coolant HOAT, OAT, or IAT. You are correct, you really can’t go by the color, there is an Asian blend that is blue that has different additives than the European blue. Old IAT coolant requires more frequent drain Intervals than HOAT or OAT it wasn’t designed for systems that were half plastic / half aluminum. I am a firm believer in using what is recommended by the manufacturer, due to the fact they engineered the system to work with xyz coolant for a reason, my opinion probably comes from all my years working at a dealership and now working for a automotive manufacturer. The comment I made in this video I was just clowning old people that want to put green coolant in everything.