BMW B58 How To Replace Upper Coolant Hose G12 740i 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022

[@topherbergy4379]

Great Video, Ill be doing this job next week. Will probably watch this vid a few more times beforehand.

[@friendlymechanic9778]

Yeah best to have all the tools beforehand and remember of the possibility of that connecting pipe breaking.

[@friendlymechanic9778]

Also don’t forget the bleeding procedure.

[@jakeair7772]

Great detail! Was exactly what I needed. Just as an FYI with bmw coolant connectors the locking tab can be in the locked position when connecting, it will auto lock because of the angled collar 👍🏼

[@friendlymechanic9778]

Yes it can but in this tight space it made it a lot more difficult than it should compared to say the upper coolant hose on the E90. Those snap on easy even when locked.

[@Alycanj]

No idea where you are located, but you should be everybody's go to mechanic, excellent work always and care for property, lazy mechanics are a thing nowadays, had 2 friends go for oil changes to find their engine shields removed underneath and weren't put back on, went back and got the "no idea what you are talking about" and the cover is gone. Excellent work and video.

[@friendlymechanic9778]

Thank you! I’m just trying to help out everyone fix their cars. They may seem complicated and difficulty but at the end of the day it’s all just nuts and bolts. Sorry to hear about your friend’s vehicles. I’m glad you appreciate the videos 👍🏼

[@DBLOXX]

Can’t thank you enough 🙏🏽. Just finished doing this on my 2017 540. Exact same steps and saved me💵💵💵💵💵.

[@HarryQ88]

Briliant detail and video quality, and many thanks for making our lives easier and saving a good amount of money 💯

[@friendlymechanic9778]

👍🏼 no problem! Glad it was helpful

[@johnnycolebut4698]

Great detailed video. Thank you!!

[@bmwsincekid]

What if i dont drain the coolant ? But only remive the hose from radiator and From the block???

[@scoobyquez16]

Always make sure your clips are closed before you connect your hoses. You will hear a click letting you know it’s secured

[@friendlymechanic9778]

👍🏼

[@yungscorch7187]

@@friendlymechanic9778 I did this nd my car won’t start could it b my battery weak cuz it’s was disconnected for 2weeks? Or is my connectors misplaced pls help

[@friendlymechanic9778]

Make sure all the DME connectors are fully connected. Do this with the battery disconnected.

[@friendlymechanic9778]

Also make sure the module under the DME have all the connectors fully connected

[@yungscorch7187]

🫡🫡

[@bmwsincekid]

But you missed bleeding the low circuit bleed , there is a differente process for that without starting the engine just using Electronic water Pump

[@bimmere60ify]

I have the same car we followed this video (great video). The hose blows off. We properly filled coolant, let car run for 3 hours drove 50 miles and the hose came off. Doesn’t attach as secure it seems. What’s the part number for the o ring and the c clip. You also said there is a plastic piece ?

[@bmwsincekid]

What happened?

[@fabiolaarteaga3148]

hey bro one question, on minute 32:10 you said that we have to depress de gas pedal or we have to press the gas pedal for 15 seconds?

[@RKSAINT]

This is leaking on my 2019 bmw x3 at 75k miles. I’ve already replaced turbo coolant return line and water pump in the past 10k miles and now this. When I do decide to do it I will be removing the intake and replacing the plastic flange that connects to the block and also replace the oil filter housing to aluminum one. I personally would rather remove the intake then de with the dme and all those wires, that seems like a nightmare and probably hardest part of this job. I love my bmw but it’s one coolant leak after another.

[@friendlymechanic9778]

I hear you on the coolant leaks. Too many I see coming in with all the coolant leaks you just mentioned. I have also seen the radiator leaking and turbo coolant feed line leaking, unfortunately also very possible for your G01. It's quite difficult to remove the intake manifold without removing the DME and getting all the wires out of the way. I have not tried that before but I already know that will be harder than just removing the DME. When you get around to replacing it replace the intake manifold gaskets and do an oil change as well. The coolant drains into the oil passage at the oil filter housing and sits inside the oil pan. no way around that so the oil needs to be drained out. The new oil filter housing OEM comes with a new filter but not sure about the aftermarket ones so double check that. Let me know if you need more info or help with that job and good luck.

[@RKSAINT]

@ wow I didn’t even think about coolant going into the oil pan. I’ve drained the coolant before on my car but I’ve only been able to get about a gallon at most. I was planning on changing the oil anyways but now I need to be extra careful to try and get as little in the engine oil. I’ve seen people remove the oil filter housing by just taking apart the dme so I may try that first and if it doesn’t work out I’ll end up having to remove the intake. Also I’ve been reading on some forums with people having blown head gasket issues on these engines. Is that a common occurrence? If that’s the case I’m selling this car immediately because I can’t replace head gasket in my garage nor do I have the skills to do such a job.

[@friendlymechanic9778]

The coolant only goes into the pan when the oil filter housing is removed. If you just drain some coolant from say the radiator or a coolant hose it won’t go into the oil pan. A head gasket can go bad on any engine but this is not a common occurrence on the B engines.

[@JT-oq5js]

Mr. Friendly Mechanic. where are you located?

[@andylopez7134]

wondering if you can help me out, I have a 2016 G12 and I noticed an upper hose coolant leak by the radiator, so I took it to a local Indi shop and he said he had to replace the hose and that it was a pain in the butt. He charged me $500 and said it was good to go, I drove it maybe 10-20 miles and noticed that the engine was over heating so I pulled over to let car cool down, after it cooled I drove the car to my house which was only 2 miles away. after I let cool down I poured water to see where leak was coming from and It was gushing out water from the bottom of engine possibly where it connected, is it possible it could have disconnected? or could it be something else? by the way all the water I poured in came out instantly, Great video by the way and you are the first channel I have ever subscribed too in youtube LOL

[@friendlymechanic9778]

First off thank you for your sub! I greatly appreciate your support. As for the leak if it is gushing out almost instantly, there’s good news in that it won’t be hard to find. Based on the information you gave I would look at the upper coolant hose where it connects under the intake manifold. Give it a tug if it doesn’t seem secure chances are it is not connected. Remember there is a plastic connecting pipe that screws onto the block. It’s a little difficult to explain but essentially it’s upper coolant hose to connecting pipe to engine block. It would need to be checked to see if it’s the coolant hose or the plastic connecting pipe causing the leak.

[@andylopez7134]

@@friendlymechanic9778 Hi thanks for the reply, after I looked into it further the hose came loose from the engine block, I dont think he removed everything like you did to make sure the hose was secured and therefore came loose, question for you what is a fair price for a job like this?

[@joshpedroso3844]

Since the upper radiator hose is higher then the lower hose, do you really have to empty all the coolant?

[@friendlymechanic9778]

The purpose of this is so coolant doesn’t spill on the side of the engine. Your starter is near that area as well as many other electrical parts and connectors.

[@bimmere60ify]

My hose keeps popping off? My mechanic and I can’t figure out why. We followed everything here. My hose wasn’t even leaking we just did it as a precaution when doing the radiator. After we pressure test it it holds fine. Once the car is driven after 40-50 min it pops off??? Any help

[@christhamlette7499]

Which hose and front what side

[@bmwsincekid]

You still have the same issue??