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hey viewers E36 fanatics this is Steven and today I'm going to show you how to properly bleed the
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water coolant system on a BMW E36 this car is a 1998 323i and we're I'm just rebuilding the
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coolant system right now and of course I had to flush the whole thing out and now I'm filling it
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back up and I'm going to bleed it basically to get all the air out. So basically what I do once
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I've put everything back together, I just finished putting everything back together, is I'm going to
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actually jack up the car, the whole front end of it. I'm going to put it about 30 degrees up. You'll
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I'm just putting it basically on the first level of the jack stand I have
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As you can see, I got it high enough to where the wheel isn't touching
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And just high enough to where I can put a jack stand underneath basically And then once I got it underneath I going to do the same thing to the other side Okay so once you got both sides on jack stands and you can see I don have it raised too high
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I think I just got the jack stand up two notches. So you don't have to raise it very far
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so once you have it raised up in there on the front end you go ahead and raise
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your hood and now you're about ready to bleed bleed the coolant system so here
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is the bleed screw right here it's just a Phillips head screw and I need to fill
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it up with coolant first you can see it's empty go ahead and fill it you can
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fill it higher than normal because it's going to drop anyways it's got to
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circulate through and you're gonna have to fill it up a little bit more anyways
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leave your bleed screw which is this hole open and then while it's while it's
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still up go ahead and start the car and turn on the heat Yeah make sure you also turn on the heat and put it on high so
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now i've got the heat going on high you want to blast it and just start the motor up
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So you're just going to want the car to sit on for a little bit
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You're going to want to wait until it gets to optimal temperature. And then you'll start seeing the air bubbles coming up out of the bleeds through
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You got to wait for the thermostat here to open up so it can send the coolant through
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Don't forget, once you're done filling the cap, go ahead and close it before you start running the motor
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As the coolant gets hotter, there a reason you don open your coolant reservoir while the coolant hot It bubbles out and you don want to get spritzed with really hot coolant so close it before you start running the motor So this is
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what you're going to see bubbles coming out of the of the the bleed screw area and you're just
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going to want it to stop bubbling before you close up the bleed screw and then you'll know your coolant
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has been yeah you've gotten all the air out of the coolant system. Once you got once it starts
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stops these air bubbles and then once the bubbles start coming and stop coming up you just screw it
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back in but for now i'm gonna let it sit for a few more minutes and just make make sure that it's
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not gonna bubble anymore once you're done bleeding it the only really the only way to check
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to see if you've got enough cooling in there or not is you've got to wait until the engine cools
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again because if you open up this expansion tank right now it's going to blow blow with a hot
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cooling and you don't want that to happen. So now we're putting back on the bleed screw. The air
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bubbles have stopped and now we're going to shut the car off, set it down. Hope y'all enjoyed this
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video. If you did, please like, comment, and subscribe and y'all have a good one
