Thanks for the input Pat. I'll continue to keep you updated on the issue. Replacement parts are arriving any day now!

@howardwilliams1218

3 жыл бұрын

I left a comment on your youtube page very similar checks

@btedition

3 жыл бұрын

@samcrac if you have access to a thermal imaging gun before you replace the water pump take out all the covers underneath the car once the car heats up run that gun over the pipes to see where it's clogged. That's obviously after replacing the radiator and the cap

@cottagemakers

3 жыл бұрын

I'm so hooked cant wait for the parts replacing and radiator fix or replacing !

@bnielsen1965

3 жыл бұрын

To add my 2 cents, based on Pat's comments and your previous i8 videos I would re-evaluate the tools and procedure you are using to fill the coolant system. 1) Use a venturi based vacuum tool. You need a serious vacuum in the system because you aren't "filling" the system with vacuum you are trying to create an empty space that will be filled by the coolant. That coolant system isn't like an old V8 with a high point where all the air can flow, it appears that will be impossible to fill it 100% with coolant unless you remove all the air in the system first. Check out this tool video kzread.info/dash/bejne/aYyq1NesqqbPZLw.html 2) As Pat noted from the procedure, start by draining the coolant system COMPLETELY. If you draw a vacuum while it still has coolant there may be pockets of air that are blocked by the coolant and remain in the system even if the vacuum gauge shows a good vacuum level. Remaining coolant may also just boil under the vacuum and you'll vacuum out vapor instead of the air you want to remove. And as in the linked video, you may need to adjust climate control settings to make sure all coolant valves are opened and the system drained. 3) Use the vacuum in the system to refill with coolant and make sure you don't suck in any air. Again in the linked video they do this, but I would go one step further because the video shows them sucking in a small amount of air from the fill tube. Pre-fill the tubing that is used to refill the system so you don't suck in ANY air at all.

@drivenserb7152

3 жыл бұрын

@@btedition fantastic idea!!

You didn't have to wait long, sam finishes very quick with his stepmom

@PatsGarageOnline

3 жыл бұрын

We all do.

@rkj4107

3 жыл бұрын

@@PatsGarageOnline That was savage

How did"finishing with his step mom" go under the radar. Savage.

@trevorrisley5419

3 жыл бұрын

That’s what I heard, too! It sounded like he said “finishing off his step-mom.” 😆

@scottrich976

3 жыл бұрын

His step mom is hot !

@fshalor738

3 жыл бұрын

I... almost lost a keyboard to this. Red shows... That it does.

@yogamon

3 жыл бұрын

Nice spot!

@navnoot

3 жыл бұрын

it actually made me cry from laughter, got me by surprise

That’s what I love about our community. Thanks Pat for your service. I have been following Sam on the journey too. Very intriguing problem!

@PatsGarageOnline

3 жыл бұрын

Thanks Docta! I feel honored to help Sam. We've been in touch nearly every day. I've been a fan of his since the R8 purchase. To now link up with him and troubleshoot an i8 feels really good.

@WayneLynch69

3 жыл бұрын

@@PatsGarageOnline He's very lucky to have your help.

Undo every coolant pipe. Then treat every section of the system as an independent system. Ensure no obstructions. Then start re-connecting, joining section to section and retest. Then join the lot together.

@dekkerlundquist5938

3 жыл бұрын

Yes, this. While it will involve a lot of leak testing after re-assembly of sections, its the only way to be sure there are no blockages.

@ronjenkins6342

3 жыл бұрын

Very unnecessary to do it this way. The most effective method to troubleshooting is half splitting. You test the entire system in two separate sections at a time eliminating the side that was good until you are down to the faulty component. Doing pats method tests everything from the solid pipes back. If that worked then the problem is either in the front or the bleeding process. I would use your method only when coolant types were mixed and I wanted to clean all of the houses individually.

@thebigmacd

3 жыл бұрын

@@ronjenkins6342 the good ol' Binary Search

@PedroNZ1965

3 жыл бұрын

Connect own radiator water pump hoses. Join bmws system and bipass totally. Just to fault find

A man with an NSX and an I8. Plus he is friends with Sam AND Docta? You earned a sub!

@PatsGarageOnline

3 жыл бұрын

Thanks for joining the channel! 👍

I'm so glad I can't afford a BMW!

@dragnet53

3 жыл бұрын

I'd rather own a Tesla. lol

@matthewmcgrath1741

3 жыл бұрын

If u gonna own a BMW don't buy a i8. They get alpt commonly badly made.

@matthewmcgrath1741

3 жыл бұрын

U better off buy suv x5 or above. I personally recommend x7

@ironmonkey1512

3 жыл бұрын

they are all junk can't wait to get rid of mine

@michaellowe3665

3 жыл бұрын

@@dragnet53 sorry but Tesla managed to screw up their cars with needless complexity. They replaced $40 door handles with $500 electric actuators. Now you cant get in if they fail. You cant open the door to get to the charger cover if the battery ever goes dead. They put every control into the Ipad they hot glued to the dash so you cant drive if that fails. They took the simplest drivetrain ever made and put it in a car that will cost a fortune to maintain over its life. On top of that, they are still learning how to design and build them.

The I8...that’s why BMW techs are sometimes richer than BMW owners

@GCguru

3 жыл бұрын

Funny thing is...your right (even if no joke intended). When I began at BMW in 90s there were half a dozen guys, usually only 40+, that were making well over 200k a year. Some more. Part of it is the basic fact we start high after being base certified, make proportionately more each major certification and annually in general. Next is the 'seniority' factor,, which is an unwritten factor nobody knows about until your both senior and damn good. All those factors cumulatively lead to a gross annual income of XXX, and corporate bonuses to really good senior master techs is almost blindly based on that gross number by people you've never met...so gross of 175k (already a good number) suddenly becomes inflated by a 10% bonus, plus most BMW employees have profit sharing, ira's, stocks, etc. Which for some with 20+ years in, can be another 50k a year. Some guys like me had another career prior and degrees...so my BS in biology and MS in biochem started me off in a VERY different payscale than a young guy freshly finishing BMW's tech program. Reason I'm writing all this is in hopes other people encourage young people to go for it and they can have the same toys any doctor or lawyer has...but it'll take likely the equivalent amount of work and knowledge . Definitely nothing easy about it..

@terence8923

3 жыл бұрын

I am going to go with the simplest of sabotage methods . Prior to repo owner took rad cap off and dumped 2 quarts of rad stop leak or something that settled in the bottom of the rad. We will see when Sam gets the rad out. Hopefully his Step Mom isn't keeping Sam from his work. Another new Sub for you today. Just found you linked thru Sam

"Finishing with his step mom" hahaha

@ThicGarage

3 жыл бұрын

Lol epic

@zerores2005

3 жыл бұрын

He mentioned Sam finishing up with a straight face.

When doing the vacuum purge and refill, you might want to start with the front end jacked up a couple of feet to get the water to run downhill and also the air rise to the top

It's great that the KZread community can get behind each other to help out. I think Sam's got the car at a good repair shop. But you seem to have more experience with the specific model and issue.

@PatsGarageOnline

3 жыл бұрын

Thanks! A lot of my knowledge came from the lessons learned from other i8 owners who've experienced these problems. I am by no means an expert, but I try to help share what I've learned to help remove the frustration of i8 ownership.

@stephenbartram7377

3 жыл бұрын

I've got an off the wall suggestion - if I heard you right and wasn't half asleep, did you say that the sensor in the upper water jacket is at the very top part of the engine? If so, take out that sensor and fill it full of fluid to the complete top and then screw it back in. No more air.

@PatsGarageOnline

3 жыл бұрын

@@stephenbartram7377 sadly, that sensor is between the block and the firewall and you can't reach it. The service manual states that the entire sub frame has to be dropped with the engine attached in order to replace the sensor. Such a horrible design.

@Spad68

3 жыл бұрын

Absolutely. Cool

@stephenbartram7377

3 жыл бұрын

@@PatsGarageOnline I see , yeah its because stuff is designed on a computer and the service part isn't part of the factoring of it But then again that's by design too so the dealers get more servicing and or the customer decides to trade in for a new vehicle when they hear the price tag and length of repairs for the service I was told several months ago about what Henry Ford did back in the day - the college graduates that were employed couldn't figure out some things [ because they had no hands on experience ] and after some local farmers approached Henry about some things he fired all the college graduates and hired farmers The exact same reason why farmers today are having to hack their overpriced computerized pieces of dung computer software,; just so they can get their harvest in before the storms hit The price of stuff today is mostly due to gains for stock prices and returns for investors of said stocks, also the fake fiat currency dollar

It’s when I see folks like you speak about things like diagnostics that remind me I’m a part changer, not a technician. The depth of knowledge some of you guys have is really impressive.

The 15 dislikes are the 14 previous mechanics who couldn’t fix it ........... plus the previous owner 🌚

@PatsGarageOnline

3 жыл бұрын

🤣

@ThicGarage

3 жыл бұрын

Lmao!

@bigfilsing

3 жыл бұрын

No they are people who hate click bait and recognize when somebody is spouting "todays prediction of the obvious" and claiming it as a fix !

@GetExhausted

3 жыл бұрын

Facts

@dalehorton7547

3 жыл бұрын

And the multiple garages it went to for repair . BMW = Bring more wonga £££

You seem like the most nicest man on KZread

@PatsGarageOnline

3 жыл бұрын

Thank you! I try to stay as positive as I can.

@unknowndesconocido8325

3 жыл бұрын

I just can’t see him getting mad at all 😂

@PatsGarageOnline

3 жыл бұрын

@@unknowndesconocido8325 The last time I got mad, I was trying to flip a 3 egg omelet over in a pan. It wasn't cooked enough on the first side, so when I tried to flip it, it fell apart. I got pretty mad that day.

Well done sir! This is why KZread is amazing! It's the skill sharing!

Before I write I comment I wanna state that I understand you understand the order of operations in the cooling system and very technical just by how you explain it/ I’m now a new subscriber! That’s so nice of you to reach out and help him and answer questions and your personal concerns on what you would look for. Absolutely wonderful and god bless you man!

@PatsGarageOnline

3 жыл бұрын

Thank you!

BMW "Replace the engine" Sounds like something Apple would say..... Buy a brand new phone because we refuse to fix it......

@manex3

3 жыл бұрын

Wouldn't it be funny, in a very sad way, that after replacing the engine there's still an overheating issue. Wonder how many times they'd replace the engine before nailing the air purging procedure?

I also suggested the garden hose idea on Sams video, it works great for flushing out old coolant systems and checking for flow 🙂

thanks!! this was really good!! I came over from Samcrac to see your comments! it really makes it tough to trust dealerships that suggest replacing the engine with symptoms such as this! thanks again!

@xequals-pc1wl

3 жыл бұрын

Except when they're correct, as in this case.

I'm enjoying the content Sam pumps out. Thank you for being able to lend him a hand! personally, there are some BMW's I like, but I'd never buy one... I'm an AMG guy but... I do have a soft spot for the E63 M6 coupe, such a shame it's a time bomb.

1st time Ive seen you. Im digging youre knowledge and professional delivery. Good content, subbed.

@PatsGarageOnline

3 жыл бұрын

Thank you so much and welcome to the channel!

Wow, what the hell were those engineers thinking?

Awesome 👍. Helping another enthusiast helping another.

I didn't know about this chanel till now and I'm glad to see the car community working together to help each other... I'm for sure subscribed from now on. 🍻

@PatsGarageOnline

3 жыл бұрын

Thanks!

Personally, I think any car this complicated and quirky is poorly designed.

@Teporame

3 жыл бұрын

Correct, awesome designs are simple and reliable.

@Kraals

3 жыл бұрын

@@Teporame Part of that thinking comes from my background in engineering and quality control. BTW, I have a Datsun 240Z, simple and reliable.

@TheNuggetProject

3 жыл бұрын

I was thinking exactly the same thing, a cooling system should be simple and something like changing and bleeding coolant should be able to be done with basic tools, definitely a poor design.

@ronjenkins6342

3 жыл бұрын

You just talked about 99% of German engineering

@earnestbunbury2103

3 жыл бұрын

@@ronjenkins6342 Thank you Wernher von Braun ...

Great video and suggestions. I love vehicles that make my v10 Touareg seem simple.

@PatsGarageOnline

3 жыл бұрын

Thanks! LOL!

Glad to see this video cause he is spot on. A small change to system would cause chaos . I have seen bolts and rubber balls shoved in hoses , even dumped a ton of stop leak in a car to plug up coolant system.

Love this problems videos , much apreciated

Your space shuttle needs an entire team of engineers to keep it going. Holy overcomplicated crapbox batman.

@PatsGarageOnline

3 жыл бұрын

I agree. It's insane.

@dannycunniff3072

3 жыл бұрын

Exactly. Why in the world would anyone build a car with high dry spots you need to run a vac on just to get the coolant system cleared? Why no bleeder on the high spot? Buses from back in the 60's and 70's had huge cooling systems, lines running everywhere, and they had valves and bleeders

@longshot7601

3 жыл бұрын

Sounds like the best solution is to lift up the radiator cap and drive a different car under the cap.

@bigdaddy7119

3 жыл бұрын

BMW= Buy More Wrenches.

@michaelric3540

3 жыл бұрын

@@dannycunniff3072 because vacuum bleeding is not that difficult.

That phrase right there "take it in for service" is why I won't buy a vehicle like the bmw. If that leaves me and my family stuck in the early 2000s then so be it.

@andrewallen9993

3 жыл бұрын

My Mercedes w110 240d cooling system is difficult to bleed. I have to undo one bolt to allow the air out whilst topping up the radiator.

@blaineadams7484

3 жыл бұрын

Exactly what I mean. Terrificly difficult. My Gmc doesn't even have a distinct for the transmission. My friend who was a tech for GM said they have to drive it for 10 minutes to get it up to temp and if it will take fluid then it wasn't full. Bad thing was he wasn't allowed by the dealership to drive it. So they let it run a few minutes then tried to fill. It's that kind of thing I have a real issue with. Other than that techs are worth the money as long as you can afford the parts.

@saaaa1921

3 жыл бұрын

Every modern car manufacturer overcomplicates and makes the car for planned obsolesence. Nothing specific just about BMW .

I got a suggestion for this channel from KZread. One of the clearest explanations I've heard, thanks for helping Sam!

@PatsGarageOnline

3 жыл бұрын

Thanks for that feedback. I think this is the first time KZread has ever recommended one of my videos like this.

Great recommendations! I know some of coolant system’s are very sensitive to even small amounts of air and that they are usually the ones that are most difficult to purge.

Few things are more expensive than a cheap BMW.

@michaelwilkening8542

3 жыл бұрын

I don't know. Bought my 1996 328I from a impound lot for $600 and have less than $2500 total in it after 9 years of use.

@autophyte

3 жыл бұрын

BMWs are made for rich people who don't keep their cars for long, and buy the new model as soon as it comes out. Or ,when a problem like this comes up, simply trade in the car and get a new one. They're not really made to be repaired .

@MercedesE63S-AMG

3 жыл бұрын

Egg zack lee!

@CaptainBBS

3 жыл бұрын

Nah im still getting it

A used bmw is like girlfriends, easy to get, but hard to keep ( them out of the shop)

LOVE these collaboration videos! This is next generation media that totally blows apart traditional cable and tv.

@PatsGarageOnline

3 жыл бұрын

I agree! So glad we have KZread to be able to do this!

@ThicGarage

3 жыл бұрын

Facts!

To me . . . the old school way I was taught to bleed all air from a coolant system of any car was to . . . "While Parked" after bringing the engine up to full temp . . . turn the heater temp dial up to absolute hot and turn the fan up as high as it will go while keeping a constant eye on the overflow bottle and keep it full. Then let it run, "Take the car out on the road" leave the heater set like this even if it's summer and take the car out on a 20 minute drive and stop every few minutes . . . keep the overflow bottle full you dont want the overflow bottle sucking any air by going empty . . . . while doing this. Someone could have dumped pure anti freeze into the system without mixing it and gummed/clogged it up.

Subbed. The only engine vids I have on my channel are the ones I created the channel for back in 1997. At the time I was rebuilding six cylinder Landrovers. Only 12,000 were ever made with the Land Rover engine. The one in my vid is a 1967 Carawagon. All this to say I love anything to do with cars and engines. Hence the sub. Great vids.

I just want this effin car fixed ... subbed and liked . All the best for 2021 🇬🇧

@PatsGarageOnline

3 жыл бұрын

Thanks for joining the channel!

@ThicGarage

3 жыл бұрын

Great team on it!

its cool to see other youtubers help out any way they can

Great video Pat, thanks for helping out Sam. Glad the old school methods are still applicable in modern cars, having used this method before of massaging water hoses I can vouch for it, my Dad taught me. 👍👍

@PatsGarageOnline

3 жыл бұрын

Thanks! My dad taught me the same. He was a mechanic in the 50s.

Replace the engine? That is like Apple recommending you to buy brand new device for tiny problems.

@adalmartinez2340

3 жыл бұрын

They do lol

@carsonmcgraw7739

3 жыл бұрын

It’s like saying your phone battery died so buy a new one

@AnnaKuznetzova88

3 жыл бұрын

@@adalmartinez2340 not true

@ThicGarage

3 жыл бұрын

Right? Lol

@adalmartinez2340

3 жыл бұрын

@@AnnaKuznetzova88 have you seen videos of Luis rossman they wanted a kid to pay 1200 for repairs when the only thing wrong with his computer was a ribbon cable worth 20$

There has to be a blockage somewhere in Sam's car. Break out a thermal imager and check the lines while it's running.

I haven't slept in 3 days, I hope you guys get this fixed so I can de-zombify myself & fix my own air problems in my deep well pump. Good luck & cheers.

Great video Pat. I'm a Samcrac viewer and found your awesome video offering great experience. I've never seen a car overheating issue this complicated before.

@PatsGarageOnline

3 жыл бұрын

Thanks for checking out this channel.

This is why in my country in south Europe we have a saying "a BMW owner is only happy twice, the day that he buys it and the day that he finally sells it."

@PatsGarageOnline

3 жыл бұрын

That's what we say about Jaguar owners. 😂

@channelview8854

3 жыл бұрын

The two best days in the life of ANY car.

This whole story is a very strong recommendation for buying anything BMW.

@channelview8854

3 жыл бұрын

Anything BUT...

I like the hose idea. When Sam talked about sabotage, that was the first thing I thought of doing.

G'day m8....i must say the clarity and clear explination on the Whole water issue with the I8 was layed out really well. Samcrac hopefully will use this to his advantage and sort this great sports car out....cheers for the vid from a car nut, way, way way. Downunder!!...aka Australia

@PatsGarageOnline

3 жыл бұрын

Thank you very much for the kind words and for stopping by the channel!

It should be called a “I8nt” for I ain’t buying one 😝

@PatsGarageOnline

3 жыл бұрын

LOL!

@kennethflores93

3 жыл бұрын

It’s like the movie I-Robot this i8 went rogue

@AuzFrog

3 жыл бұрын

Why do you think BMW called it an i8 = "I hate" Oversight..!?

@jauh20

3 жыл бұрын

super funny

@GetExhausted

3 жыл бұрын

Hahaha

loving the content, you should do car reviews!

@Evapors

3 жыл бұрын

he has the best i8 channel. i have learned a lot about my i8 from him

I like the waterhose suggestion!

What a wondeful guy Pat is. A free, honest appraisal of the overheating issues experianced by i8 owners. Clearly explained. Best of luck on fixing the car SamCrac.

@PatsGarageOnline

3 жыл бұрын

Thank you so much for the kind words!

I was thinking someone could have put a ping pong ball into one of the lines.

@offgridhomesteaders863

3 жыл бұрын

I was thinking a marble or two that would lodge in the coolant passages of the block.

@ClarenceDoskocil

3 жыл бұрын

I thought the same thing! Full of air to move around, yet obstructive with pressure.

@johnb5519

3 жыл бұрын

@@ClarenceDoskocil Yeah, I bought an LT1 engine from a salvage yard, and it had a block heater installed. I heard one guy at the yard say is that the engine that overheated. Anyway, I pulled the block heater out, and there was a frost plug jammed between two cylinders. Whoever put it in, just pushed the frost plug in, without removing it. So anything obstructing flow in there will cause overheating.

Sounds like German over engineering at it's finest to me

The corey chase bit is so great

A good useful post. Step by step... could save 1000s .... top man!

That was a great explanation! Sounds like a poorly designed cooling system.

@ThicGarage

3 жыл бұрын

So many i8 owners having overheating issues. Surprised they didn’t recall

@TrekZero

3 жыл бұрын

Just ask Owners of a Delorean... Cooling System is as bad as from Sams i8.

@chemech

3 жыл бұрын

You're not likely to ever get a *well* designed cooling system for a mid-engine car... that said, this design sounds like it's really bad...

OMG Another Step Mom reference on another channel? LOL!!!

Great advice from the i8 mastermind!

@PatsGarageOnline

3 жыл бұрын

Thank you!

Nice to see a BMW guy that us actually helpful. I subed and gave you a like!

@PatsGarageOnline

3 жыл бұрын

Thanks for the sub and welcome to the channel!

What do you think Sam should try in order to fix his BMW i8?

@lkgnfxng

3 жыл бұрын

Light a match and carefully insert it into the gas tank.

@PatsGarageOnline

3 жыл бұрын

🤣🤣🤣

@ro63rto

3 жыл бұрын

I think he should load it onto his trailer and bring it over to your place for a complete overhaul.

@PatsGarageOnline

3 жыл бұрын

@@ro63rto Sadly, my garage is full 😁

@Un.hinged.69

3 жыл бұрын

Hello Pat Just curious if water would flow from one aluminium coolant hose (under body) through the engine, and out the other hose, given that there thermostat would be closed. Is it not ECU operated ( think I remember you covered that on another video) Thanks again Pat.

My thoughts are definitely a blockage, I'd take the coolant lines a part and verify no blockages.

@michaelwilkening8542

3 жыл бұрын

Same here. I would look for a tennis ball shoved in a radiator line or another act of sabotage. KISS it (keep it simple stupid) . Pull every easy to get to line aff and check for blockages. Get a hose diagram and make sure they are routed correctly. Would of had the radiator taken to a shop and boiled out before they blew it up and it needed to be replaced. Pull the thermostat out and see if the car still overheated. Before hooking up the radiator hoses with the thermostat out I would have ran a hose in one hose and out the other to make sure the entire system had flow. Sometimes when you overthink things you overlook the obvious.

Nice input. That's the way to go sharing information... Good New Year 🖐️

@PatsGarageOnline

3 жыл бұрын

Thank you and Happy New Year!

Great video and detailed work.

@PatsGarageOnline

3 жыл бұрын

Thank you very much!

Original owner is probably sitting back watching these videos eating popcorn

@PatsGarageOnline

3 жыл бұрын

LOL

If the temp sensor is at the top of the circuit it strikes me that'd be a good place to bleed it.

@PatsGarageOnline

3 жыл бұрын

Sadly, it's not easy to get to. It's at the front of the block, against the firewall with the passenger compartment. The service manual indicates that the entire rear subframe needs to be dropped to replace that sensor.

@miguelmiquel5497

3 жыл бұрын

@@PatsGarageOnline how about installing a remote bleeder?

@MrDemonchild71

3 жыл бұрын

@@PatsGarageOnline it sounds to me like bmw was in a bit of a rush to get this car onto the market and didn’t think that if the engine has higher cooling lines in the engine than the radiator they will end up with air pockets at the highest point. Is there anywhere you can have a bleeder valve installed. Any air trapped in the system is going to make the water pump basically useless

@stephenbartram7377

3 жыл бұрын

@@MrDemonchild71 no they intentionally planned it that way - over- engineered (as Scotty Kilmer says) too many stupid sensors, on a computer, and by someone with an edumacation with no actual hands on working on it. when 1 piece of plastic breaks - torch it

@MrDemonchild71

3 жыл бұрын

@@stephenbartram7377 you're totally right. You know if an actual hands on mechanic at least had some input in the design of modern cars they wouldn't have half the stupid problems they have. All it would take is a tiny bleeder valve near the sensor

Brilliant deductions and very clear and concise. Thank You. I believe you've solved it ‼️💯👏😃👍

@PatsGarageOnline

3 жыл бұрын

Sam let me know he found more things wrong with the car so there might be other issues. Stay tuned!

Glad you two connected on this issue. I think if Sam can take his time and methodically go through the process, he should be able to get great results with your advice.

@PatsGarageOnline

3 жыл бұрын

Thank you! My fingers are crossed he can get to the bottom of this.

Definitely classic BMW over engineering

Whenever we have had a coolant problem, we just use coloured food dye, put in the expansion bottle, and run the engine, then go to the furthest hose/components and see if you have coloured water? If not work forward until you find the blockage/problem, just like they do in medicine

@PatsGarageOnline

3 жыл бұрын

I like that idea!

@charliepoodle5151

3 жыл бұрын

At least that way you will see if there’s a blockage, it’s just a process of elimination, if there is coloured water, then it can only be electrical or mechanical, the waterways are ok.

Thanks Pat for jumping in to help. I am a huge fan of the i8 and hope to be able to afford one in the near future. Because of this I do a lot of research on the i8, its maintenance and its flaws and in doing so, I saw this situation with his overheating i8 . I was going to suggest for him to try to reach out to you, but you came to the rescue. I can wait to see if he got it work properly. 🙂

@PatsGarageOnline

3 жыл бұрын

Thank you so much for the kind words. Fortunately, Sam and I have spoken routinely and are trying to put our heads together to fix this problem, albeit virtually (for me).

After watching all of your videos, I have opted for the bmw extra warranty, I love the car and don't want anything to go wrong..🙏

Poorly engineered if the coolant is that difficult to service. I'll stick with my G30 and steer clear of this mid engine nightmare.

Sam should check for exhaust fumes leaking through a crack in the head into the coolant.

Thank you for your input, Pat. I have been following Sam on his quest to get his i8 running.It is a common theme among engineers and designers nowadays, to add layers of complexity to manage otherwise simple systems. The problem is, that the public feels forced to purchase products that are not very user-friendly, but are also a nightmare to diagnose when problems arise. I designed and built machine tooling and repaired machinery for decades. What I found was that, the fewer the moving parts, the easier it was to train someone to use the device. Also, malfunctions were much easier to diagnose and fix. I enjoyed your no-nonsense approach in this video.

@PatsGarageOnline

3 жыл бұрын

Thank you for the kind words and for sharing your experience. I am a simple DIY guy that enjoys working on cars, and this car has fascinated me because of its complex systems. But it certainly not a car for the DIYer to continue to own after the warranty is expired, in my opinion. It's just super complex for a one-man garage.

@Badjujubee

3 жыл бұрын

as much as a pain in the butt as these increasingly complicated mecha-tronics are for car repair, they are also kind of inevitable as we try and squeeze the last joules of energy with less and less waste product/pollution from burning million year old sunlight. And in engines closer and closer to the edge of safe operating tolerances as far as heat and weight. I'm still waiting for the old Crosby style brazed sheet metal COBRA engines to make a comeback. Easy to get an engine block to operating temp when its only 18 Gauge steel :/

I don't know about the BMW design at all, but experienced something similar with overheating due to a bad casting on a GM V8 where the flow was restricted due to a blockage in the system. Hadn't watched your channel before, but appreciate the way you lay out the video with captions for the different sections. Wish everyone did that!

@PatsGarageOnline

3 жыл бұрын

Thanks for the kind words. Yes, any engine can have a restriction and I would assume that if the i8 was known for this, that it would overheat with no air in the system. So far, no BMW i8 owners have come forward to indicate that this happens when the coolant system is working properly.

The cooling system on my BMW E-46 is just like it. It's a pain in the ass to remove trapped air.

@Stop..carry-on

3 жыл бұрын

Poor poor design .it shouldn’t be so hard

@spencermaiers8322

3 жыл бұрын

I have serviced many BMW cooling systems NEVER AN I8, and I have never had issues. The "old school" method works fine. E46 if it isn't bleeding, start thinking head gasket or cracked head. I understand I8 is a fancy system and so forth and so on, but I don't see any issues bleeding normal BMW's from the 70s to the 2010+ as being required to vacuum bleed. Probably well over 200 BMW cooling systems serviced.

Parking the car on a steep incline with the front higher than the engine also makes it easier to get the air out of cooling systems

@DrewLiscomb

3 жыл бұрын

I WAS GONNA SAY THAT! Lift the front end during the coolant replacement process

@terrybalman7487

3 жыл бұрын

I made this suggestion to Samcrac a couple of days ago. Its got to be an air pocket that is stopping circulation and getting the front end higher will do the trick. Lets hope he tries this and saves himself a lot of aggro.

@phildragonslayer8127

3 жыл бұрын

I was really expecting you to say - park it on a steep incline, let the piece of shit run off over the cliff then go get a car that works, obviously not a BMW!

@savatagedude

3 жыл бұрын

@@phildragonslayer8127 unfortunately Sam lives in florida... not many inclines around. Though there is the Sunshine Skyway bridge in Tampa! that is pretty steep

Pat, I’ve had multiple i8’s in my little garage and I worked for bmw of San Francisco for 15 years, and I just follow the same bleed process I’ve done on every single bmw and rolls Royce I’ve touched, and that was just fill it completely, turn the car on for ten seconds for the water pump to kick on, and turn the fan on low, and just wait and monitor it for about 15-20mims, crack the bleeder valve every now and then. I just did a radiator R&R this Monday, did the same process as usual, it did not work the first time and the temp went up, but I parked it, turn the fan back on low and was a bit more patient, and it never overheated again. I checked with the customer yesterday and he said it’s running fine. The only manufacturer that I’ve had to absolutely air bleed is VW/Audi and Porsche. Idk why the process works for me every time, I guess it just comes with years of experience as well. So strange people say that the “ vacuum bleed” was the only way to do it. I had Mavis Tire call my garage to come in and bleed an i8, and showed the tech the same process I did, 15 mins later, the i8 was back to their customer. Just try it once time. I’d the cooling system is closed fully, this method should work every time.

@ajchiappetta8795

11 ай бұрын

@@DesignIsDestiny What i do is this, put the ebrke on, put the car in N, or D, or tke it out of Hybrid motor to get the engine tuning, turn the heat on full medium/full, once heat starts pumping thru the vents, in my opinion, thats when im confident all the air is bleed from the system, i do leave the res caps off for a few minutes as well. Thats what I was taught in tech school and the only manufacture that it did not work on was Porsche/Audi/VW, they have a little solenoid you vent or open under the cowl at the wipers. With BMW, this is what ives always done and never had an issue.

I'm so surprised that even a BMW shop was not able to diagnose this properly. Seems like it is getting harder and harder to find good mechanics. Awesome explanation of what is going on.

I had an i8 with a front suspension noise and after taking it into the dealer under warranty, the dealer replaced my engine. It seems like SOP.

@whosdondada

3 жыл бұрын

Wait what

@ant7699

3 жыл бұрын

What's sop?

@dillingeradam

3 жыл бұрын

@@ant7699 standard operating procedures

@steptoeandson3554

3 жыл бұрын

That wasn't a front suspension noise if a mid mounted engine replacement cured your noise!

This issue comes due to Raditor broken, Thermostat , he need to remove the spring and check (thermostat not opening)

@kenabi

3 жыл бұрын

they did that, in the last video on sams channel.

@TotalFreshness

3 жыл бұрын

@@kenabi The last thing that happened in the last video is that the radiator broke. They didn’t know about it.

@kenabi

3 жыл бұрын

@@TotalFreshness they tried the last procedure (involving checking the thermostat) and decided to replace it (even if they hadn't in that one). and then it broke on them. so yes, this was all covered in the last video.

Excellent video. Like your style!

@PatsGarageOnline

3 жыл бұрын

Thank you very much!

Great video! The step mom comment was funny!

@PatsGarageOnline

3 жыл бұрын

Glad you liked it!!

Too bad automakers don't provide a "high point vent" in the cooling system to help bleed air.

@bobmazzi7435

3 жыл бұрын

Some of my old Saabs did. One in the heater core, one at the thermostat housing and If I remember right, one at the top of the radiator.

@lamatyler

3 жыл бұрын

I mean why not just splice one in on the highest hose, never have this problem again.

Man I love my Porsche 993 right now.

@PatsGarageOnline

3 жыл бұрын

Porsche definitely knows how to build rear/mid engine cars with front radiators that don't have this much trouble with coolant.

@gf4509

3 жыл бұрын

last of the air cooled 😬

Excellent video. Yep. I was thinking an obstruction somewhere in the block. A flush is a good idea anyway.

Nice tip Pat!

I have heard so many BMW horror stories. I’d never buy one.

@creamsoduh6392

3 жыл бұрын

True! Thank you for saying this

I'll stay with my Dodge.. cheap parts easy to get to😎

I'm actually one of the techs that worked on the car. Replaced the oil filter housing, mechanical water pump, and one of the turbo aux coolant pumps. I tried bleeding this car for 3 days. That car needs an engine, the water pump and oil filter housing I took off were melted. The engine sounded fine so we tried to save it, there is a blockage in the engine itself somewhere and probably other places. I have nightmares of this car to this day. Eventually you will get oil pressure faults in the DME

@PatsGarageOnline

3 жыл бұрын

Thank you for this valuable information. I really appreciate you reaching out to let us know what was going on.

hey, Pat very informative video & an intuitive way to check the system, this made me subscribe. cheers mate!

@PatsGarageOnline

3 жыл бұрын

Thank you so much for joining the channel!

Its a head gasket. It was blowing water out the coolant reservoir and it ended up cracking the radiator. There is a lot of pressure building up and its not all from overheating. I did notice he was using plain water during the testing and plain water cooks of easily. I will assume the proper coolant is a special formula that doesn't boil easily. Evans coolant is a special no water coolant made for racing and doesn't boil very easily. The aluminum heads easily warp from low coolant or coolant thats not bled right. Vapor/air pocket can create hots spots in the head. Those gases building up in the coolant need to be checked for hydrocarbon gases by using an emissions tester that is used to check emissions from the exhaust. Some kind of testing device would need to be rigged up to do this unless they make one for it. Many cars are engineered to fail. Do you see any engineering flaws in the cooling system? I would say it needs some bleeder valves at high parts of the engine to help get those air pockets out easily.

@PatsGarageOnline

3 жыл бұрын

Great analysis. Once he gets the additional parts for the repair and actually bleeds the system, I look forward to seeing if he is able to continue troubleshooting for a possible head gasket issue. I didn't want to suggest that so soon, without being able to get him past the air pocket at the top of the water jacket as this is so hard to get out. Dealers are used to doing the vacuum bleed procedure up to 10 times in a row before it will actually bleed. And, that's the dealer. There is definitely a design flaw with the high temperature coolant system in this car.

@WheelchairVehicles

3 жыл бұрын

There’s no white smoke / steam like you’d expect with a blown headgasket between the combustion chamber and the waterways though.

@markzijnrules

3 жыл бұрын

The compression test het did tels different

@rubencintora6777

3 жыл бұрын

Can he perhaps check if theirs any combustion gases going through the cooling system ?

@miguelmiquel5497

3 жыл бұрын

I'm betting it's a bad passage in the engine , or radiator.

So is this what Jimmy Neutron is doing these days..

Found you through dreamcars daily recently and really enjoy the style of videos! Hope to see your cars myself one day :D I about spit my drink out at the conference call bit.

@PatsGarageOnline

3 жыл бұрын

Awesome! Thanks for joining the channel and I appreciate the kind words. Yep, that bit with Sam and his "step mom" was certainly hilarious when I saw it on his channel. I had to follow-up.

Very informative from obviously a highly skilled guy, great video thanks 👍✨

@PatsGarageOnline

3 жыл бұрын

Thank you! I've learned so much about this car over two years of ownership. both by personal experience and by other i-8 owners who havewouldn't be able to share what I know today.

my head hurts now

@miaheat21180

3 жыл бұрын

Welcome to bmw ownership lol

Scotty Kilmer said buy Toyota,Lexus,Honda..the rest is BS..!!!

@hazepheno925

3 жыл бұрын

Lexus is made by Toyota. Just like Acura is made by Honda. Infiniti made by Nissan. These companies where trying to get around the stigma in the 1980s and 1990s that Honda and Toyota were cheap Japanese rustbuckets with zero luxury, and appeal to middle class buyers.

@Shabbe02

3 жыл бұрын

Also Acura

Pat- Thanks for the full breakdown. Sam will probably follow your instructions to rectify this complicated issue. Sorry, these are the very reasons I have owned Toyotas for many decades. Extremely reliable with low maint plus low repair issues!

Very informative and well spliced to reference.