BMW N55 Coolant Flush

If your BMW is due for a coolant change then you should also replace the hose and flange that are prone to breaking and could leave you stranded. Better yet upgrade the flange to a metal one and never worry about it again.
Coolant Flange and Hose: bit.ly/3Kf9ku3
Brass Bleeder Screw: bit.ly/34hkPSR
Coolant: amzn.to/3vGKY7l
Coolant and Oil Caps: goldenwrenchsupply.com/collec...
Pick Tools: amzn.to/3Kfffzf
Socket Set: amzn.to/3rNQWBW
Ratchet: amzn.to/3rQzdtF
Screwdrivers: amzn.to/3EIsuHz
Drill: amzn.to/3xOvKQj
Thanks for tuning in. If you are looking for a complete tool kit as well as video gear hit the links below.
Tool Kit: kit.co/fritzramos/bmw-mechani...
Video Gear: kit.co/fritzramos/filming-gear
If you are looking to get started on KZbin, consider Tube buddy as it has helped me out a great deal. Try it out for free: www.tubebuddy.com/financialfi...
Some of the above links are affiliate links. By using them you help support the channel at no additional cost to you. Thank you for your support.
00:00 Intro
01:39 Coolant Drain
03:26 Bleeder Screw Replacement
03:33 Coolant Flange Removal
05:43 Coolant Hose Removal
06:01 Comparing OEM to ECS
06:15 Coolant Hose & Flange Prep
06:55 Coolant Hose & Flange Installation
09:00 Coolant Bleed Process
10:29 Coolant Capacity
10:40 Reinstall Carbon Brace
11:06 Final Tips
#n55commonissues #bmwcoolantbleed #m235imods

[@beffjezos7701]

In case anyone is wondering, the Coolant doesn't come pre-diluted. you need to add distilled water (DO NOT ADD TAP WATER or you will ruin your engine),

[@Rickh1234567]

Well heck! I wished I had watched this video last week! I just bought a 2016 M235i with 43K miles. During the pre-purchase inspection, the mechanic recommended a coolant system flush because somebody had used the wrong coolant (green). I had that done the coolant flush done the day after the purchase, exactly nine day ago! I really like your videos - great recommendations for maintaining my BMW and preventing future trouble. I have the charge pipe ordered (due to arrive in July) after watching your "common problems with N55 engines" video (which I watched before the purchase!) I am really glad that you still have your bimmer, and are continuing to make videos!

[@alecplayz5552]

Green could also be BMWs new HT-12 coolant. If the car was recently serviced at a dealer, they probably filled it with that.

[@armandobrigante6057]

Bro I love your videos, this just saved me time and money

[@luisvargas4577]

I do not recommend you use the VTT supplied o-ring because it’s slightly too big thus will get pinched while tightening and flange won’t sit flush to engine. I used OEM o-ring and it went in without any force and I was able to sit flange flush to engine. I think it’s easier to drain coolant from water pump hose. I used funnels to collect coolant as I removed hose. If reusing 10mm bolts be careful when thightening them. I did hand thought plus 90° degree turn and zero leaks. I also reused the coolant hose by cutting it right past the plastic flange. Then inserted VTT coolant flange into hose. Easier this way than trying to remove hose clamp from thermostat side

[@cs2-llc]

Great walk through. About to do all of these items. I bought the mickey mouse flange and OEM BMW o-ring.

[@kuyansen]

Great video! Question # 2 When do you flush the coolant and or what would be a reason to do so? I don't know if there is a service interval for it. Thank you!

[@NoCompM2]

Great video, watch this first then completed the job. It is really tight to do. I have no idea if there is a difference between the m235i and M2 but it's extremely tight. Thank you for the tutorial!

[@TheNekstOne]

Hey dude did you drain the coolant on your m2 from the aux radiator like in the video? Going to be attempting this job on my m2 soon. Thanks!

[@sambonefarmer9139]

Nice vid, helpful. Do you have a link for the brass bleeder screw?

[@nofilter2091]

Another really great, detailed step-by-step video Fritz- I have already purchased the flange for a future install. I'll be re-watching this video when the time comes! BTW, have you replaced your coolant return hose yet?

[@luisvargas4577]

You can reuse the coolant hose. Just cut out the plastic flange and reinsert new flame

[@nofilter2091]

@@luisvargas4577 My apologies, I meant the coolant expansion tank hose.

[@Heavlysedated]

I just changed mine it broke on me

[@alanp8029]

Don't know if this has already been mentioned but at 7:50, I snapped my bolts by torquing them to 14nm as you stated in the video. Other than that, this video has been incredibly helpful

[@user-go7lh1vn4q]

yooooooooo I snapped mine as well. I was able to grab with the plyer with very small tip poking out. I was lucky

[@Xeridae]

Just in case anyone else read this in the future, I believe the correct torque is 8nm as the other similar bolts in that area are 8nm.

[@neilthemedflyspecial]

probably the best diy video on the web. the provided link for coolant flange and hose shows "page not available". is there another source?

[@Mystoganne]

Hello Fritz. I have some question : what do you mean by a galloon of 50 50 mix. You mean that you mixed your coolant with distilled water ? By the way the coolant in your link is currently unavailable and i can't find it anywhere.

[@cuttingedgecool7235]

Very good video.

[@ericwj7]

Great info, Had a friend do this for me recently. now my radiator coolant return hose that runs from the tank to the top of the radiator hose broke which is very common on my F 22 to break. It was done while replacing the valve cover so engine was off so not much coolant spilled, when I get the part do I have to do this whole process again?? I've read No but also yes Lol.

[@Deftones445]

If you are unable to hear the water pump starting to purge the system, set a 10 second timer and it should start to bleed the system. Sometimes it may require a battery charger to be connected.

[@zloneOTM]

I’m hoping my water pump is still good, really worried since I have yet to hear the pump after multiple attempts Will try again with charger and see if that works

[@triplea7668]

Great video. I did this with version made by Rein. I am thinking to get this part from ECS with the silicone hose. I have a question where did you get the aluminum oil filter cover cap. I been thinking about getting rid of the crappy factory PLASTIC. They need to get rid of those beans counter engineers at BMW so we don't have to deal with plastic parts on a crazy power and heat engine. I love the N55 engine but man I hate all the plastic stuff.

[@Mawding]

cracked my radiator on my 335i so trying to plan as much as I can for my DIY replacement. Sounds like I should just pull from the water pump to keep things simple

[@DRAZTEC16]

Fritz I replaced the hose that connected to the coolant tank it had bursted on me, I added coolant bled the system took it for a drive and my engine still over heats… help ?

[@-ahmed3091]

What do you mean by accessory mode should i turn on the car or just turn on the electric of the vehicle

[@wife55air70]

I am always entertained from Japan. My question is, do I need to loosen the small brass cap that is attached to the reserve tank when I am electric purging?

[@xander7229]

Did you ever find out!

[@miketran7374]

Does this part fit my 2015 335i? I’m planning to purchase it and pick it up because the store is closed to my workplace. Thanks.

[@joshhdtx]

what is that part used to secure the hood @ 2:57 ?

[@Itsjustdom_]

I just replaced the flange abd the upper hose on my n55…that flange is a lot easier when you remove the fan

[@thomasdiersch1181]

any ideas on where i could get this in canada. im finding most of the parts you are installing are not available here. Excellent video btw. Love your production.

[@FritzRamos]

THOMAS! I asked the shop I partner with if they'll ship to Canada with you min mind. They said for now, they will depending on the part. So if you want just email them and see what they say. Could you update me as well? Thanks

[@LeveeJ]

How long should it take before I hear the purge sound

[@mp235i9]

Nice I’m trying to upgrade every plastic bmw has put into the engine compartment 😂. I want to ready it for ps2 turbo. will you ever go that route fritz?

[@ehabfathy9524]

What else rather than this and the chargepipe you have changed?

[@mp235i9]

@@ehabfathy9524 intercooler and boost pipe

[@garyh5176]

Do you have to hold down the accelerator during the entire purge or only until you hear the pump start running?

[@FritzRamos]

Only until you hear it run. It's a little hard to hear so I rolled down the front windows to help

[@Deftones445]

Typically you only have to hold it down for about 10 seconds, easiest way I found to purge the system is pressing the pedal down and setting a 10 second timer on my phone. Sometimes or some cars may require a battery charger to do the bleed procedure.

[@matthewsalazar41]

bro has the cleanest car

[@Jared33385]

What about a 2015 BMW 320i N20 flush? Same thing?

[@jesuspoceros25]

Can you replace the hose and flange with out doing the coolant flush or will coolant leak if I just replace the hose and flange

[@Deftones445]

Coolant is definitely going to leak, to replace the flange to the aluminum one you have to replace the whole line, and it goes down to the thermostat. It’s honestly a pretty easy hose to replace fritz did do a few extra steps draining the coolant at the aux radiator, which isn’t fully necessary, but it does help prevent making a mess.

[@grocerylist]

Can you post a link for the coolant flange & hose?

[@FritzRamos]

Here you go bit.ly/3Kf9ku3

[@bikasallum1513]

Hi where can I get that engine brace, I live in Canada and I can’t find it, please help me, thanks

[@FritzRamos]

I got mine from ebay ebay.us/5cL3ZQ took a while to source everything. Hope you have an easier time finding everything.

[@Thom1883]

Where can a guy get that M2/M4 carbon front brace for his M235i? :D

[@Jet3ch]

Same for f10 n55 2014?

[@5StarzVandal]

what ratchet did you use for the 2 bolts?

[@FritzRamos]

I would actually recommend these over the one I used. It's cheaper and the head is smaller for better fitment. I ended up selling those wrenches amzn.to/3HOBKvM

[@mecheng1977]

These flimsy clamps are actually high quality with curled edges. The ones you used are crappy and the thread digs into the rubber

[@seizetheday24x7]

greetings frits...the process of purging the air from the system is the same for f30 n20?

[@FritzRamos]

Yes it is

[@seizetheday24x7]

@@FritzRamos thank you..keep the nice work...questioned.. have a link where to buy it ..

[@FritzRamos]

@@seizetheday24x7 here's the full list. Coolant Flange and Hose: bit.ly/3Kf9ku3 Coolant: amzn.to/3vGKY7l Coolant and Oil Caps: goldenwrenchsupply.com/collections/motorsport-blue-products Pick Tools: amzn.to/3Kfffzf Socket Set: amzn.to/3rNQWBW Ratchet: amzn.to/3rQzdtF Screwdrivers: amzn.to/3EIsuHz Drill: amzn.to/3xOvKQj

[@seizetheday24x7]

@@FritzRamos thanks for sharing your knowledge...

[@str8shoota745]

Every coolant hose in my n55 is failing. I recommend changing all coolant hoses when one goes bad they all will soon after.

[@FritzRamos]

Not a bad idea

[@romeo00132008]

Silicon hose is not always more reliable. It does degrade but at slower rate. It don’t care for cold or heat. With age it actually gets softer. 10+ years. Never the less . The biggest downfall of silicone hose is it’s low resistance to cuts or friction against anything. So if using silicone. Please use some kind of friction reducing material. Weaved nylon shielding or even split conduits like ones that are used for electrical harness. All that said the best solution is always just not to have a friction in the first place. If your silicone hose does not in fact ever rub on anything. You can leave it alone. Also. Carful tightening clamps. Silicone is much softer. You can easily cut it and cause leaks from over tightening clamps. All and all silicone is way to go just keep friction away from it. I’ve replaced every single hose on my semi tractor with a silicone alternative. Those downfalls of silicone I’ve learned are from personal experience. Just consider. In last 600 000 miles . And 5 years of using them on a semi tractor. Day and night. Most if not all are still holding up. Additional note. My silicone hose have outlasted some clamps. Usually this don’t ever happen. But then again usually hose don’t last 10 + years. Thanks for the video. Great tips .

[@aihampaul9590]

Btw, not all f30s have auxiliary radiator

[@FritzRamos]

Then drain at the water pump. N26 aux radiator is on the right side

[@tgshark1]

When you bleed you should back off the valves maybe you did but skipped over it?

[@FritzRamos]

Are you referring to 3:01

[@tgshark1]

@@FritzRamos no when you allow the air to come out at the end, how is the air going to come out if you aren't opening thr valves

[@FritzRamos]

@@tgshark1 During the purge process?

[@ThatsRex]

I was thinking the same thing

[@smudent2010]

After watching this video I have decided that I will never flush my coolant.

[@drewpickard554]

Hahaahhahaha, it used to be metal. but that cheap aluminum one is fantastic, got a couple for like $14 amazon prime. One thing ill say is if your mickey mouse at all doesnt look great, just order that upper hose at the same time, seems most of the time thats on its way out at the same time. And worth giving your overflow tank a hard eyeball at the same time

[@FritzRamos]

Nice! Do you know when they switched from metal to plastic?

[@drewpickard554]

@@FritzRamos Im not sure, but I noticed on a 2006 e60 that one had a metal one that was painted black. I assume that was OEM, but who knows. Looked exactly like the plastic ones, if it wasnt for the paint chipping I would of assumed it was plastic.

[@goescrazy3618]

I don't even see the little coolant thing to drain it

[@xiaomu7401]

Low coolant message still appear in screen, how to remove it?

[@FritzRamos]

Did you try the purge process again?

[@garett2892]

Do you by chance have a maintenance schedule for this car that you can send me?

[@B3nnywhit3]

just order the ECS Performance Coolant Outlet Hose Kit and bmw coolant to flush that green stuff they put in my n55 engine to blue oem

[@lionelm9540]

I don't get it, ppl talk about distilled water, but he doesn't even talk about it in the viddo.

[@dogchainsaw3923]

Man for a performance car, it’s all plastic smh my head

[@FritzRamos]

I know right. Well not anymore

[@adirabadi763]

You should be using jack pads. That is not the proper way of jacking a BMW. You are lifting the car on edges of hollow plastic.