Hey everyone, 2018 330i here: The expansion hose broke off of mine as well - DO NOT take off the intake manifold, there's no need to. There are videos out there that tell you to take off the manifold when that would absolutely be a waste of time! Be patient instead :)
That plastic/rubber line was involved in a recall. The replacement line is metal so the fittings on the ends won’t break off. Dealer replaced in half day, no charge to customer.
Your video saved me from a disaster my brother! Last year I was camping with my family 400 miles away from home. Went to buy some groceries, on the way back from the shop a low coolant lvl worning popped up and shortly after high engine temp warning. I pulled over, opened the bonnet and everything was sprayed with coolant. Got my car towed to the camp site and started looking for the issue. Found you video, put my hand behind the alternator and I could feel one of the hoses being completely loose. So I knew what the issue was. Ordered new part from locar BMW dealer along with some coolant. Got the part the next day. Got everything fixed and running in less than 2 hours. If it wasn't for your video I'd be removing the intake manifold etc just like other people on some forums suggested. You saved me a lot of time and problems!!!! But.... I have to remove the intake manifold anyway because my coolant temp sensor decided to die on Saturday and I don't think I can access it without removing the intake. This car and it's cooling system is just such a pain. I really wish bmw didn't decide to have this engine operate at nearly 110C. I wouldn't mind slightly lower mpg but better reliability.
@@6rubios I know, right? I had no choice, 400miles away from home, started researching internet for the similar issues and came across your video. And thanks to you it wasn't that much of a problem to get it fixed. I thing having to go to bmw dealership that was about 40miles away cased me much more hassle than getting the issue sorted out.
UPDATE EVERYONE!!!! My daughter just got a letter from BMW. They referenced this part and are replacing it for free if you have this hose on your vehicle. I’m not sure which models had this hose on it but if your having this problem you may want to contact your local BMW dealership and get this work done for free!!!
I believe this happened to my F36 430 GC at 20k, dealer replaced because my car was still under warranty. Fast forward 1.5 years later and 47k miles, I get another low coolant warning. Idk if they will repair it because I’m no longer under warranty. Did your daughter still have warranty? Thank you for the video!
Another thought, instead of replacing with the same part, can we install with aftermarket generic coolant hose, which is sold in length cut from roll, and lock it up with hose clips instead? I'm thinking the aftermarket hose may last longer, since it's rollable and flexible, rather than the rigid plastic routing hose having to deal with mechanical stresses.
Just had this happen on my 2017 BMW 330i. Easy DIY. Took me about 2 hours of slow work. You can reach around with your hand behind the alternator ! When I went to dealership for a replacement, they had plenty on hand in stock, which tells me they are making a killing on this fix. Shouldn't dealership tell you to replace this preemptively before you get stranded on freeway ?? This should be a class action law suit. Loss of coolant will get this turbo engines super hot very quick. Replace this ASAP. Thank you for this post. MSRP for this part is $44 but you can get it online for $35-40. Get BMW blue coolant and mix with distilled water 50/50 once you done.
Peak Anti-Freeze also makes a non-nitrate/non-phosphate coolant. Per the parts guy at BMW that’s the way to go. The non-nitrate and non-phosphate is the trademark that makes that coolant different from the rest.
@@6rubios hey man my 2017 currently has the same leak I tried calling BMW to see if it can be covered and they still have to charge 275$ for a diagnostic Eventhough a shop did the diagnostic and found where exactly is the leak which was this and they have a wierd warranty policy that if it falls within BMW recall and advisement policy the diagnostic and repair would be covered they didn’t even mention how much the repair is
@@6rubios hey there. I just removed this pipe and it seems like it was replaced before (it is made in 09/07/2020, the car is 2017) and it doesn’t seem like that it is leaking. But when I looked under the intake manifold there definitely are some wet spots. Any idea where it might leak?
The video is perfect thanks. Sadly my mechanic don't want to do it that way and want the official job, 5 hours labor...no thanks Just to know, how did you released the hose bracket engine side ? Screwdriver won't works, and pliers/tongs seem too short or too fat for the job ?
Hi, thanks for the details. How did you unplugged the hose bracked of the cylinder head ? You didn't and just pulled by hand ? also, did you ran a bleeding process after this of any sort ?
You have to pull the retainer clip on the hose end and then just pull the hose straight off. The retainer clip doesn’t come fully off the hose it just pulls out about 3/4”. No on the bleeding process. I just filled the reservoir back up and kept an eye on the coolant levels for a few weeks.
A wrench will work but a ratchet would be better. If I recall it’s a 10mm bolt, but I could be wrong. As long as you have a 3/8” or 1/4” ratchet and a metric socket set you should be good.
Hi. Can we just let the crankcase valve open to the air without connecting it back to the coolant reservoir, and close the hole on the coolant reservoir not connecting it back to the crankcase PCV? It may be a crazy idea. 😂 Thank you for making this informative video.
I would not advise that. Your cooling system is designed for the coolant to circulate and keep your engine and components cool. As soon as you do that your cylinder head will over heat, warp, and/or blow a gasket. You’ll turn a $100 job into a $10K job in about 20 minutes.
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Hey everyone, 2018 330i here: The expansion hose broke off of mine as well - DO NOT take off the intake manifold, there's no need to. There are videos out there that tell you to take off the manifold when that would absolutely be a waste of time! Be patient instead :)
That plastic/rubber line was involved in a recall. The replacement line is metal so the fittings on the ends won’t break off. Dealer replaced in half day, no charge to customer.
Your video saved me from a disaster my brother! Last year I was camping with my family 400 miles away from home. Went to buy some groceries, on the way back from the shop a low coolant lvl worning popped up and shortly after high engine temp warning. I pulled over, opened the bonnet and everything was sprayed with coolant. Got my car towed to the camp site and started looking for the issue. Found you video, put my hand behind the alternator and I could feel one of the hoses being completely loose. So I knew what the issue was. Ordered new part from locar BMW dealer along with some coolant. Got the part the next day. Got everything fixed and running in less than 2 hours. If it wasn't for your video I'd be removing the intake manifold etc just like other people on some forums suggested. You saved me a lot of time and problems!!!! But.... I have to remove the intake manifold anyway because my coolant temp sensor decided to die on Saturday and I don't think I can access it without removing the intake. This car and it's cooling system is just such a pain. I really wish bmw didn't decide to have this engine operate at nearly 110C. I wouldn't mind slightly lower mpg but better reliability.
Yes they are complex cars, glad to have been able to help. Never thought someone on a camping trip would be watching my video, lol, God Bless!!!
@@6rubios I know, right? I had no choice, 400miles away from home, started researching internet for the similar issues and came across your video. And thanks to you it wasn't that much of a problem to get it fixed. I thing having to go to bmw dealership that was about 40miles away cased me much more hassle than getting the issue sorted out.
Thank you. Nice and easy. Will replace it in mine as soon as I have time. This part is well known to break in the B46/48 engines.
I fixed that on my BMW, it took me 1hr, easy job, thanks mate
UPDATE EVERYONE!!!! My daughter just got a letter from BMW. They referenced this part and are replacing it for free if you have this hose on your vehicle. I’m not sure which models had this hose on it but if your having this problem you may want to contact your local BMW dealership and get this work done for free!!!
so what do i tell the dealer? mines just busted, coolent all over my garage. im gonna take it to dealer tommorw and need it fixed for free.
I believe this happened to my F36 430 GC at 20k, dealer replaced because my car was still under warranty. Fast forward 1.5 years later and 47k miles, I get another low coolant warning. Idk if they will repair it because I’m no longer under warranty. Did your daughter still have warranty? Thank you for the video!
I just had mine replaced today, 2017 330i. Took it in for service and they said there was a recall for it.
If you didnt get a letter can you send the recall info so I can let my dealer knw
For the b48 120i there’s no recall 👀 guess I’ll have to take the hit. It’s only £36.11 in uk
Another thought, instead of replacing with the same part, can we install with aftermarket generic coolant hose, which is sold in length cut from roll, and lock it up with hose clips instead? I'm thinking the aftermarket hose may last longer, since it's rollable and flexible, rather than the rigid plastic routing hose having to deal with mechanical stresses.
You’ll get what you pay for!
Just had this happen on my 2017 BMW 330i. Easy DIY. Took me about 2 hours of slow work. You can reach around with your hand behind the alternator ! When I went to dealership for a replacement, they had plenty on hand in stock, which tells me they are making a killing on this fix. Shouldn't dealership tell you to replace this preemptively before you get stranded on freeway ?? This should be a class action law suit. Loss of coolant will get this turbo engines super hot very quick. Replace this ASAP. Thank you for this post. MSRP for this part is $44 but you can get it online for $35-40. Get BMW blue coolant and mix with distilled water 50/50 once you done.
Peak Anti-Freeze also makes a non-nitrate/non-phosphate coolant. Per the parts guy at BMW that’s the way to go. The non-nitrate and non-phosphate is the trademark that makes that coolant different from the rest.
@@6rubios hey man my 2017 currently has the same leak I tried calling BMW to see if it can be covered and they still have to charge 275$ for a diagnostic Eventhough a shop did the diagnostic and found where exactly is the leak which was this and they have a wierd warranty policy that if it falls within BMW recall and advisement policy the diagnostic and repair would be covered they didn’t even mention how much the repair is
Finally a good video with adequate detailed instructions. THANK YOU!
Glad it was helpful!
@@6rubios I’ll try fixing it tomorrow, let’s hope for the best 🤞🏻
@@6rubios hey there. I just removed this pipe and it seems like it was replaced before (it is made in 09/07/2020, the car is 2017) and it doesn’t seem like that it is leaking. But when I looked under the intake manifold there definitely are some wet spots. Any idea where it might leak?
What bolt is the bracket held by? What tool do i need?
Thank you so much, sir
The video is perfect thanks. Sadly my mechanic don't want to do it that way and want the official job, 5 hours labor...no thanks
Just to know, how did you released the hose bracket engine side ? Screwdriver won't works, and pliers/tongs seem too short or too fat for the job ?
I used a 1/4” ratchet with a socket and extension.
Clutch, appreciate the knowledge Og
Hi, thanks for the details. How did you unplugged the hose bracked of the cylinder head ? You didn't and just pulled by hand ?
also, did you ran a bleeding process after this of any sort ?
You have to pull the retainer clip on the hose end and then just pull the hose straight off. The retainer clip doesn’t come fully off the hose it just pulls out about 3/4”. No on the bleeding process. I just filled the reservoir back up and kept an eye on the coolant levels for a few weeks.
I'm having a cooling leak thru oil housing, dealer wants $4,200. What you recommend?
Does this go to the turbo. I have a leak, and BMW said it was to the Turbo return line
No, this particular line goes to the cylinder head.
Took it to the dealership, fixed it for free , took one day . My whole coolent flushed out , got it towed. At least got a fee coolent flush for free
How were you sure it was that?
BMW replaced mine under recall last year on my 2017 330xi. No charge.
I also have 2017 330 I , will they replace this leaky hose no charge for me as well?
@@CODTalent it’s worth calling them to ask. I took mine in for an oil change and it was leaking and they replaced it under a recall.
Can anyone tell me what tool or tools I need to take the bracket off
A wrench will work but a ratchet would be better. If I recall it’s a 10mm bolt, but I could be wrong. As long as you have a 3/8” or 1/4” ratchet and a metric socket set you should be good.
Hi. Can we just let the crankcase valve open to the air without connecting it back to the coolant reservoir, and close the hole on the coolant reservoir not connecting it back to the crankcase PCV? It may be a crazy idea. 😂 Thank you for making this informative video.
I would not advise that. Your cooling system is designed for the coolant to circulate and keep your engine and components cool. As soon as you do that your cylinder head will over heat, warp, and/or blow a gasket. You’ll turn a $100 job into a $10K job in about 20 minutes.
@@6rubiosAgree. I forgot about the coolant circulation. 😅 Still need to put back the connection. 👍
Whats that part called ? I need to order it too
Cylinder head expansion hose. Just make sure you take yours off first so you’re sure it’s the same part number.
@@6rubios thank you
@@6rubios i have a 2017 330i is it the same part number as yours or na
@@a1dinero859 I would assume so but I wouldn’t chance buying it before you know for sure. This one’s a twin turbo.
@@6rubios yea mines twin turbo too by any chance you dont have to know the part number still