Expansion Tank Replacement And Coolant System Bleeding BMW 3 Series




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Did this video help you?

Mitch Vigil: Cheap plastic parts on an over-priced poorly engineered vehicle. The supposed superiority of "german engineering" allows them to charge more. Having worked on them and owned them long-term allows reality to creep in. If you replace all the cooling system every fifty is the only way to avoid cooling issues. By the way mercedes and porch's have the same exact problem. IMS anyone? 

Randy Calleja: So after removing all the hoses and bottom clip. Just pulling up on it will remove the tank? 

Gerardo Tellez: Would this problem cause your engine light to come on? One more question off topic Would a tune up oil spark plugs air filter so on so on Would that cause the engine light to come on? Pretty lost HELP!!

Rich Harris: if by chance you don't bleed the coolant you will know real quick when you run down the road with the a/c on...you will peg out red really quick. Bleed the pressure out by at least taking the care 1/4 of the mile down the road...then bring it back to make sure the pressure is built up....you might see your thermostat starting to peg. Just bleed the pressure off and you are good.

TUDDY pena: GOOD VIDEO

Rich Harris: Be careful pulling on the tank to hard as it does pull on the transmission cooler box quite hard (raising it up.) Suggest someone hold the box underneath while one pulls on the tank. I had to use a flat jack and the bottom of a wooden hammer and lift the tank up with the butt of the hammer with force from the floor jack to pry it loose.

Josh Hobbs: What if the low coolant level is on. Water doesn't leak when its idle but when its driven and I get to my destination the red stick indicates there's no water in it. Water pump was just replaced. Could it just be the expansion tank.would that solve it or what direction do I need to go. 

thekingreyrey: I have a 2003 325i, and it has been leaking anti freeze when its off would it be the radiator or the expansion tank? Also its been leaking more each week. If you could help me out that would be awesome! Thanks! 

Alexander Vakulenko: the hose coming off the bottom of the expansion tank, I notice it goes into the front of the engine.. but where exactly does it go? I have a 545i

tucan452: Need help with this 2005 BMW 325i Oil Cooler Thermostat For Automatic Transmission Models

sendthosepixma: Its hard to hear I have a 2001 325ci bmw Is there a sensor connected to the expansion tank and doesn't it tell you the coolant is low? I think i need that sensor My car broke down and i had the coolant system replaced 2 years ago Water pump,, thermostat, pulleys belt expansion tank My coolant light comes on occasionally and goes out while im driving My coolant is full to the top and i dont see any leaks on the ground and it still says low im guessing that sensor went bad with age and need to find out where its at

MauricioR23: How do you install the sensor back on. I'm about to replace my radiator tank next week and it seems like the level sensor can be a bit of a pain. Also,what's the purpose of pulling out the latch out from the bottom after removing the tank if you're going to be replacing the tank with a new one? Your thoughts?

6041321as: What if my car is loosing cooling water,and from exhaust comes white smoke. Taste and smeel of smoke is like my coolant water is mixed in work of engine, like the engine burning water also not just fuel. Tnx

Lucas Hill: Help!!! This might sound crazy but after replacing my expansion tank, I cannot get my main hose that has the bleeder screw in it to connect back to the radiator. I'm pulling with all my strength and it barely even moves. All the other hoses connect fine. I checked the inside of the hose to see if there was something in there but it looks just fine. Has anyone seen this happen before? What do I do ?

Raj D.: CAUTION: don't leave the bleed screw open for too long with engine running. If you do don't forget to let the engine cool before tightening your bleed screw (I just broke mine off because it melted after leaving the engine running with screw open to let air out)

izzy dontgotONE: Hey man really need help. I have a 98 540i and every once and a while I get this really bad "burning smoke" smell when I have my heater on. Any suggestions or tips on how to fix or what the problem may be? 

Man Garibay: The worst thing is that the U joints are not interchangeable, so you have to find a specialty shop that can rebuild the drive shaft. It all started with a ticking under the center console and it got worse over time, till the car is just not drivable

klc317: Oh well, radiator is not too difficult and expensive of a job, probably with the age and mileage it is probably not at full efficiency anyway. Might as well throw some new hoses on also. Always something!! Keep up the great videos.

mbyr31: It never seems to fail....If its not too cold when the car breaks down, its too hot! I'd still take the heat over the cold though. At least you can still feel your fingers...LOL! Great work Ed! They sure do pack stuff into those cars, eh??

Doug Robinson: Thanks Ed. I used your video to learn how to replace my expansion tank. Everything is running fine now. You are right - you do have to pull really hard.

kattlikzm: Hi My dipstick thingy is at the bottom, and yet the coolant light hasn't come up on the dashboard yet!? Is it still safe to drive the car?

EdzGarage: I used the green stuff mixed with distilled water.

gvvvv2300: my card is in garage. they told me there is a crack in the tank and it needs to be replacement. along with this, they are saying there are other parts which tend to break on e46. how much do you think is it reasonable to get this job done? thanks a lot in advance.

EdzGarage: You have to bleed the system. I showed how at the end of the video.

WhoSaidTyler: I fell in LOVE with a 2003 525i that actually had a manual trans a while back...black outside, black inside, wow I wanted that car. Everything I read on the internet pretty much said the entire cooling system has to be replaced at some point, either by necessity or pre-emptively. You know you are working on a Bimmer when you can wear shorts for pretty much any job :-)

carnivore10: Nice work Ed, That O-ring kit you have there looks like a good one. Good video Buddy!

EdzGarage: I would add some coolant. You never know if your level sensor is bad.

7Monte9: Very helpful video. I didn't even take off the front air intake. Just the air filter box. Its a good idea to change all o-rings while you have everything apart. Thanks for the video!

vidman008: The stuff I do at work with the juice machines, and water, they are all sealed with O-Rings.. After a length of time, the O-Rings develope a "Flat" all the way around them because they've been cramped in the same spot for a while.. Once the flat wears a little, they will develope a slow drip.. Maybe you'll get Lucky, and it will be a hose leak, rather than your Radiator.. Good Video.. I feel on the floor laughing when you said you just have to remove the front of the car.. LMAO.

EdzGarage: Well in this case it was not bad lol They do get stressed and my first one blew out at 120k miles. Thanks for watching!

Man Garibay: What a coincidence, I just did this job last week at 167k miles... Drove the car for a couple of days and the drive shaft's carrier bearing went out. I don't know if the drive shaft is rubbing around the transmission tunnel or the bearing housing, but it sure makes an awful noise. I have scheduled a tow truck to transport my car to the BMW tech to get the job done. I feel this job is too big for me to tackle on my garage floor.

EdzGarage: Yep, it was going anyway... I just know it lol

EdzGarage: The radiator job is next. Looks like it wont be too bad. Thanks for watching!

TheRudenreckless: Info: when pooling the tank up after disconnecting the switches at the bottom, twist the tank side to side to loosen it up!!! A good video man thanks for the info but I broke a couple of plastics cuz I couldn't see any shots of the bottom of the tank and what needed to be disconnected. Other than that a helpful video.

EdzGarage: This is a very common issue with these cars. I hope I don't have issues with my carrier bearing now! lol

EdzGarage: No coment? What does coment mean? Thanks for watching!

Tiffany Tran: Just a quick question , s

Kake Mekaanikko: Hi! i get it out and now i have put everything back so now i have only to bleed the airbubbles out of the system like you do at 5:57 -> so is the car running at the same time and there is in the bottom of the tank one bleed screw also (blue one), am i going to touch that to? or is it something else? you change the o ring for that ?

EdzGarage: lol Nope, no more spiders!

dakibmw: Ed, have you replaced ET without actually getting under the car (at all) and without removing plastic skid plate/cover from under the engine? Thanks.

mike moe: one addition to this when pulling the tank have a new ATT valve ready it will probably break into pieces when pulling tank

500passwords: the air in my truck isnt working good and all this stuff your doing is scaring me . lol i was getting ready to recharge it like you did in last video . but now you got me worried about this tank and stuff :P thumbs up buddy

Henry Lavigne: Hey Ed, can you explain the proper way to place the metal spring that sits above the trans thermostat in the expansion tank? I think the big end is on top, but does it seems to sit to one side in there due to some plastic nubs. Any insights?

tube101ish: great video.. thank you so much for your help

EdzGarage: lol It's been a good car. It has 198k on it now, so things are starting to go on it. I just need to keep up on it. Thanks Vic!!

EdzGarage: lol you can't get good camera help these days!!! Thanks for watching Buddy!

EdzGarage: First things first... recharge the A/C then you can focus on the other stuff that will break right after that lol Thanks 500!

MagicCadillac: Well, that's a pretty job to replace that thank, it takes a little time.

bikermaniac: Hi Ed, I had my expansion tank cracked so I bought a new one on ebay. I just receive it but it has some ticking and clicking sound inside. I grabbed the lever indicator stick with my left hand (to avoid it to move) and with my right hand I tilted the tank and that noise appeared. I checked with a lantern and it looks like two small metal pieces are loose inside. Would that be part of the tank? or the tank is just broken or faulty? Thanks for your help.

EdzGarage: You can replace the upper rad hose without draining the coolant. You will loose some fluid so you will need to add some after the replacement, and you may not need to bleed the system. You should bleed anyway to be sure.
Rating:
Expansion Tank Replacement and Coolant System Bleeding BMW 3 Series 4.4 out of 5

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Expansion Tank Replacement and Coolant System Bleeding  BMW 3 Series