BMW Dealer Tried Totaling My Car By Quoting $15,000 For 10 Computers! I Fixed Them All For $150!
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- čas přidán 17. 06. 2022
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In this video, I show you how to fix expensive car control modules or computers instead of paying a dealer or shop thousands of dollars. "You can do it!" In many cases, you CAN do this at home without any special automotive training or experience. Enjoy the show and let me know in the comments what you're wrenching on right now!
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What's something you fixed after getting a quote from a shop? Who else is going to try fixing or replacing a car's computer on your own now?
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I have a w204 with third brake light issue fixed for 120$ and saved 200
Hey Alex was there an upload Thursday? Also can Deboss Garage YT channel last upload, that Mercedes race car is a beast!!!
Lastly would you ever get a rotary engine like Rob Dahm?
ABS rings + sensors on the rear axle for a E87 BMW 118i. Got a quote for almost €1000,- but fixed it myself for €100,- Bosch sensors and OEM rings.
I would buy Carly but a subscription no way!
I don't go to shops lol. I've been an auto tech for 20 years and even though I have no garage i just work on the street. Did my transmission mount insert on the street same with my oil changes. I like to fix things instead of buying new. Fixed a portable oil heater that way.
The M539 intro literally made me double take at the start. Anytime I hear 'coooooming up' I assume it's one of his vids I had queued.
bro same i actually thought i clicked on a m539 project chicago video anyway lol so i was extra confused for a second
thought I was having a stroke
Maybe it’s a hint to a future collaboration ?
Yes!
I freakin love it whenever there is a collaboration! In spite of a literal abyss (Atlantic Ocean) between them! (Alex just said Titanic as I ended my sentence)
It does not matter the industry, the dealer always tries to get the maximum amount of money regardless of what's wrong with the product. Good job showing people how they can do better. Thank you for sharing this with the world
IF ANYONE KNOWS HOW replacement part dealers screw the repair industry it is Louis as he has not only battled Apple and it's amoral business practices but he has spent time and money travelling the country publicising the cause.
I am lucky, live next to China where it is possible to buy even copy bare PCBs from after market shops. But there again, I never buy anything Apple.
Thank you Louis.
BMW dealer tech here! Love you Louis and figured I'd comment that it pains me every single time I have to replace a control unit whenever something like water damage occurs. If it's customer pay and I don't have to turn it back in for warranty, I'll take everything apart just to look at the cause of failure. Unfortunately, with "warranty", all of these kinds of items (and every other item, for that matter) need to be turned back into the parts dept to potentially be sent back to the manufacturer for "inspection" so disassembly would void any of that and then result in my getting back flagged for my time or I'd do it with every one of the items.
Unfortunately for me, I have to go through this on a daily basis. I genuinely feel terrible when I have to quote a replacement control unit + programming when I know that it MIGHT not be necessary.
Those trunk lid control units have always been manufacturered like garbage with little to no protection built-in if something goes wrong. I've literally seen one fail and just catch fire. Literal flames coming from the center connector due to over current on a non-protected portion of the PCB. Absolute garbage.
Of course, the "maximum amount of money" they can get, isn't the retail price of replacing it all.. it's what a rational consumer will pay.
If Louis Rossman jumps in the comments, you KNOW it's getting serious 😂😅👍🏻
Of course they try to get as much money as they can. So do independent repair shops. That is business. They have a set cost for parts and labor... And they are in business for profit. If you can do the repair yourself, thats great. You will save a lot of money.
As an electrical engineer, you will be surprised by how just cleaning off connectors and circuit boards will fix huge issues. I'm very impressed by how you handled these issues. Good job!
Thanks Marcus
Sometimes the corrosion eats through the copper traces on the circuit board.
A shop that repairs cell phones and motherboards by microsoldering can repair this.
The NorthridgeFix channel has videos showing how this is done.
They also repair keyfobs.
My first job out of college in 1985 was at an electronics firm. I learned everything about soldering and cleaning/coating/assembling circuit boards. You did everything very well! BTW: the coating was called "conformal coating" where I worked. At a different company, we put the liquid coating material in a vacuum chamber to suck any entrapped gasses out for coated circuit boards going into space. Fun times.
Was about to make a comment about the conformal coating too
Only thing is I would’ve used more solder to make a shiny joint and use some flux
In the 80s I did the NASA 'high reliability soldering; course and the 'multi-layer printed circuit and flexible circuit board repair' course and yes it is definitely known as 'conformal coating'. we used to use a vacuum chamber as well, it worked better on acrylic coating than epoxy. we did that because the equipment I was working on were parts of the F/A-18 Hornet fighter
I recently talked with a marine electronics shop about their corrosion prevention for ordinary connections. (Saltwater is the worst.)
I had dropped my cel phone in my sailboat's bilge ... They said their anti-corrosion potion is dielectric grease; for the rest of us; pure lanolin, straight off the sheep. Keep a meadow-maggot around the shop and you'll have a forever supply of the stuff.
It's great to hear about the "conformal coating." Why didn't Chrysler use this stuff on their '76 Dodge POS's? for no money at all, they could have saved their marque from a bad rep that follows them to this day!
Oh yes ... the cell phone in the saltwater? You should'a heard it screaming as it died! Sad.
Run your car into the salty surf and AFAIK, it's DEAD! Burn or crush it quickly, so nobody gets stuck with any parts off the thing.
There's multiple types of conformal coat. They are not only not necessarily compatible (unless proven otherwise) but in some systems, the type of material is pohibited, Silicon for example. Even on Class 3 (mission critical/lifesaving equipment) PCB assemblies, brushed on conformal coats can be used, so long as the design supports it. Re-work and repair also may (or may not) support brushed on coating.
Conformal coating for a PCB can be removed with your fingernail. Not so great for a car.
Crazy. sounds like hvac. Soldering, vacuum etc I know different temps soldering and all but we have to pull vacuums anytime we open the refrigerant lines. We also do plumbing, electrical, air flow, engineering for sizing and heat loads.
I’m definitely wanting to do everything on my own. I do honest work. It’s hard to find other industries with the same. I’ve been self teaching working on my vehicle.
Brilliant intro from Sreten! You guys are B7 bros now.
Steten the Master of the n62✌😁
@@saschakaltwasser1002 not even by choice, but then again no N62 expert is by choice hahaha
@@nickbrandon5359 Hehe, true 😂👍
HOOOOLD UP! That's Sreten at the beginning ❤️ #M539Restorations
Can't wait for colab
That was very cool, his Alpina B7 is finally working now, as in not blowing up after 100km
One addition I would add to your supplies are thermal pads. One of those modules had two pads on them. Those are to conduct heat from the chip into the case and dissipate it. It's a passive cooling system. Often they have a small amount of adhesive on them, and that electronic cleaner can remove it. You can buy sheets of thermal pad for not a lot (10-15 bucks), and then cut to size and replace. The main thing is to match the thickness of the existing pad. Too thin and it might not make good contact with the metal casing, too thick and it won't conduct as much heat (and could put stress on the chip and/or board).
That's crazy that someone even taking in "just another" auction car knowing it would sit in their field of cars wouldn't think to just take a min and tape a trash bag over the window. Why wouldn't that be standard stuff the fork driver would have
Or one of those metal lane markers some states use. IL is one. They've blown some holes in parts on my truck before when they get loose on the interstates and bounce up into the undercarriage at speed. Ruined a pal's knee when one hit him while he was riding his motorcycle.
Sreten in the intro is just an anticipation of the big LSC-M539 crossover
I thought this was going to be it.
Sad Panda.
I pretty much started doing my own repairs on cars at age 15-16 buying used cars to get myself around to and from high school and jobs etc... Had a head gasket blow and got a quote from a shop my eyes fell out of my head. I took a look at a repair manual and said this is just a big 3D jigsaw puzzle, and went to work. Now I had to get a few things done by a shop like milling the head flat where it had warped a bit. I rebuilt my whole engine basically it was great.
salvage yards are also a great way to upgrade the options. Car makers love saving so _usually_ the next tier of trim/switch/dash fits in. That's why they want to have everything serial number.. you know, for safety.
Lol I’ve done that. Turned an Integra SE into a GSR.
I had to rewind the intro like 3 times to believe I am not on a Streten video 😅
Lol
Love the M39 Restorations reference…love your vlog…top shelf.
I repair computers as a hobby, and use 99.9% IPA (IsoPropyl Alcohol) to clean off liquid spills on computer boards. It is amazing what a little bit of elbow grease can do to a "lost cause".
Plus it is easier to measure for any issues if the legs of the parts are clean. You were very lucky to have these modules given to you. By the way, I enjoy the repairs!
This has been one AMAZING video Alex. TRULY informative and reinforces us regular guys that we CAN fix these cars with time and patience and the right materials.
M539 intro bit was baller lol love this car and how well your treating it Alex!
LOL, love the M539 intro.
I’ve done a lot of repairs on avionics in the 1980s, but this is the first I heard of using deionized water. Probably a lot safer to use than the mek and Trichloroethylene we used. Great video!
Freon was the best!
Nothing cleans like MEK!
I just used this technique to fix the remote radar receiver head of my 10+ year old Escort Passport 9500ci radar detector. After years of trouble free service it gave me a “check receiver” error. Since I mounted it behind my bumper when i installed it, I wasn’t looking forward to taking it back off. After seeing this video I decided to get after it. Removed the receiver head, saw the wiring was in perfect shape, so took the head apart. No apparent moisture got in, but there it was, corrosion between a couple of components on the board. Cleaned it off, put it back together, reinstalled everything and BOOM, it works perfect once again! Never thought it would be that easy, thanks for the great videos Alex!
Your collaboration with Sreten needs to happen ASAP! I'm waiting with bated breath for the day I see you in Frankfurt, or likewise see Sreten in Chicago! You'd be the Automotive CZcamsrs equivalent of "The Road Warriors/Legion of Doom"!
This was a great video. I’ve been watching your channel for years - and many others - and I don’t recall anyone covering this topic. I had no idea you could clean corrosion from electronic car modules. Especially with de-ionized water. Car lovers need to know this stuff!!!
how is this a surprise to anybody? I had so resolder my control board for rear parking sensors.. worked just fine after.. Contacts come loose, some caps might bloat.. But chips rarely fail.
Yes normaly liquid damage cab be cleaned, as sonner it is more sucess you will have, i repaired lots of liquid damage stuff, we use de ionized water and isopropanol alchool to clean the corrosion. Even your phone if it goes in the water do not put in the rice, open ir and do what Alex done here, 90% of the time you ok.
@@organiccold Is distilled water a good alternative to deionized?
@@liuj88 was wondering the same, commented to get any updates that may post.
Well said. I was thinking the same thing!
Little reminder, take pictures of before you take everything apart
Makes reassembly a lot easier
You make me not want to buy a used car from anyone but you. You do some of the most thorough repairs I’ve ever seen. I’m a Field Service Engineer. You’ve had some fixes I wouldn’t have thought of for sure. I’m really impressed. I’ve watched almost every episode I’ve found in the couple months I’ve been watching your channel. I’ve even fixed a few things since watching your channel. I’m still intimidated to try my 2010 Fusion that was caught in a flash flood in Detroit but this is an excellent start. Electrical gremlins are the absolute worst to troubleshoot.
Started watching this after Streten’s newest and had to do a double take in the beginning!
This is honestly Chris fix levels of help here, kudos to you for possible thousands of dollars you helped people save with this video.
Exactly my thought!! Well done, very helpful and straight to the point video
Alex even sounds like Chris....very reassuring :-)!
Awesome job Alex. Well done man. I’m ready to tackle the modules in my W211. You inspire me to go deeper into things I’m hesitant to touch
Thank you dear , this is by far my favourite scratch video , it has many solutions that you provided and the car really looks awesome
I've had great experience soaking the boards in a Tupperware filled with 90% rubbing alcohol. I put the container on my subwoofer at home and either play some music or watch a movie. The vibrations act as an ultrasonic cleaner and the alcohol dissolved the corrosion.
I did this on a water damaged iPhone and MacBook and it worked both times. I soaked overnight and rinsed with some new rubbing alcohol. Brought back all my electronics.
The issue with just spraying is, the corrosion can exist underneath the chips/capacitors that you can't get to with a brush. When it soaks and vibrates it gets everywhere.
Excellent Advice and smart!
Lol love the alcohol & subwoofer technique..
I'd would've used a microscope to view the board in more detail to double check the cleanliness of them..
Thou Alex was lucky only having to replace a couple of modules.
Alex, an interesting side note on the fuel pump control module that you clean up and reinstalled. Those are known to suffer from heat cycle failure and become very intermittent in operation. I have a 2011 Alpina B7 just like the one you are working on and I chased this problem for the better part of a year. My car would be running 100% perfectly and out of the clear blue simply die. I replaced both high pressure fuel pumps, I replaced the fuel pump inside the tank under the back seat and the whole time it was this dang module in the back. When it would get hot (ambient temperature above 90 degrees) it would simply stop sending the correct pulses. Let it cool down and it would work again. My point is, even though you have cleaned it up and made it work again, I'd replace it with a brand new one and not have to worry about it again. I found a brand new one for 60 bucks and no longer have any issues. I am following this video series very closely given that I have the exact same car. Its 11 years old and running spectacularly. Keep up the great content.
Do you remember what codes you were getting?
I have a 2010 750Li & I'm having fuel system problems. First I use to get a lean code on Bank 2, then that stooped. Fuel trims still high in the low 20s
Car idles rough & now it will randomly shut off. Codes I get when it shut offs...low pressure in the system & in the high pressure system, electric fuel pump speed too high
And I'm guessing that causes the fuel injection to cut off. It's driving me nuts now, I ran a fuel pressure test in ISTA...and it checked out fine
So idk if it's a vacuum leak that's causing all this, or some fuel component like that module
I have one of those modules for sale :)
Oddly enough it wasn’t throwing a code. That’s hard to believe but it wasn’t. That’s what made this so dang hard to figure out
I had a customer install his own battery. He connected the battery backwards. The battery post was completely melted off, metal spatter everywhere. I figured the car would need every single electronic module. Much to my surprise, the only module that fried was the fuel pump/srs module.
I have seen those modules go bad on their own as well.
@@MrFlyNikolai I didn't get codes when my hpfp failed. I've heard of particles contaminating the fuel system when this happens so just be vigilant about continuing to drive it, mine was intermittent at first it was only freaking out at startup where I assume it lost pressure in system but not enough to throw a code if it even would.
Very impressed with your DIY attitude and knowledge of control units and how to "clean" them. Thank you very much.
hey! car and pc enthusiast here; you can generally wash any circuit board (without any power whatsoever) with plain water, and if the corrosion is really stuck you can use some dish soap too.
you just have to make sure to rinse the board really really well and then rinse it again with rubbing alcohol. that will prevent any mineral buildup after drying and it will remove the water stuck in some hard to reach places like underneeth the smd chips.
This is generally a last option to resort to but it works. is better to just use alcohol and a toothbrush.
Also, you dont really need the entire harness plug to replace a pin, you can just basically buy some female pin conectors of the correct size and crimp them to the existing cable.
I appreciate the inclusion of M539 Restorations intro, especially with his latest endeavor with his Alpina B7.
Caaaaming uP. We wash sensitive electronics in a bucket. Clean room not required.
The only proper intro for working on this car
Congrats, Alex:
that was a wonderful video where almost everything worked out by itself - I was so glad for you, you deserve it, because you always think of passing on useful info to us. Very well filmed, too. All the luck in the world!
Heiner.
That’s why I love watching this channel, not only entertaining but very informative for the DIY’er.
Great to see you show the repair of the circuit boards. SO many just throw them away, when most can be saved. Looking forward to seeing it finished.
Thanks! Means a lot coming from you.
Most guys just recoil in horror when they see an Alpina ... and with just cause! This is not only a BMW after all, but it’s an even less reliable and more complicated one! It’s OH SO satisfying to see you tame the BEAST!! 👍👍
Where I live, junk yards charge 50% of the original new part price so this repair would have cost thousands, even as DIY.
@@dingdong2103 I've seen some junkyards around me literally charging the same price as Mercedes if not cheaper by maybe $5-10. Textbook insanity.
@@dingdong2103 eBay (not a sponsor) is the place to go for that kind of thing, there's always a seller somewhere out there.
The yellow coating is called Conformal coating. It can be sprayed on or brushed on to new production pc boards with humidity and moisture sensitive sections. Conformal Coating prevents moisture/electricity based fungus formation. There are different formulations of conformal coatings, including silicone, Acrylic and even epoxy based potting (solid forming) or liquid turning to gel versions.
I just learned to pot using gasket sealer
One of the best instructional car electronics repair videos I've seen. Full marks Alex
I don't know why but I found your video very soothing lol. I love it when people do a DIY instead of blindly trusting the dealership. I had defective adaptive headlights warning in my E60. The dealer told me I had to change the whole headlight assembly (both of them) plus the LCM, and they quoted me $5000 for the whole thing. I decided to take headlights off, and the AHL module, the one attached at the bottom of the headlight, was completely fried. It looks even worse than your trunk module. I don't even know how water got in there. In any case, I replaced the module, had the headlights resealed and the redid the wires too (the insulation was crumbling), and everything is working fine. The LCM is in perfect condition. I spent maybe $100 total. Never, ever, trust the dealership.
Patiently waiting for the LegitStreetCars/M539 collab…….
As for the ABS module, I believe it was done as a insurance fraud. They smashed it so the whole dash would lit up and after quick scan with computer it'll show faulty ABS pump/module, really expensive to fix so total loss ;)
Agree with this, I work at an auto parts recyclers, and see a lot of this stuff.
i would not be surprised as dealer mechanics and probably all mechanics now these days get paid by the job through book time
Body shops do this shit dam meth/crack heads need money for their fix
I don't understand why ABS modules are so expensive. It almost at the level of the price of an engine head or block, or a gearbox. Anyway, insurance companies are money making machines. They have no real purpose.
@@samuellourenco1050 I guess it's because of so much electronics in it, valves, etc. but I'm pretty sure manufacturer still makes huge money out of every ABS unit they sale :P Same goes to BMW, in Europe if you buy fleet of cars directly from BMW for your company (some bigger number of cars of course, like 100) you might get up to 60% discount on each unit! Yeah, you read that right. I was shocked when I've heard about it. Insurance on the other hand, yeah, they are money making machines but for average Joe it's nice to have. When you total the car you get your money back for it. Not so good for someone who never had an accident in their life though for let's say 50 years :P
The drying stage is incredibly important, I was recently fixing a PCB from a monitor and after a week it wasnt dry and wasnt fixed but about 2 weeks later it worked. Dont rush it.
If you do clean PCB regularly get a food dehydrator. The fiber in the board is hygroscopic some what the source of the root problem .
I normaly clean them with de ionized water,isopropanol alchool, blow them with air and let them to dry for a night in the boiler room ;)
Super Impressed, I can work on classic cars blind folded but all the electronics in the new cars have caused me to quit doing most repairs besides regular maintenance. The tips you showed isn't just for automobiles, many things are so dependent on sensors and modules. Take a modern washing machine, very prone to problems with the circuits due to water damage and given some of your tips many could be saved instead of replaced. Keep doing what you do, your presentation was excellent.
Just purchased my first BMW (an X5) it's11 years old and in super condition but your superbly done video with clear explanations of what one can do, told me so much I almost want to try them out. Good advice for all electronics. Brilliant and well done.
VW says we engineered an $800 failure prone computer to run the windshield wipers. BMW says "Amateurs. We built one just to run the fuel system." Great job on the repairs and the video! That was awesome getting an intro from Sreten aka CZcamsr M539. As far as the "dumb" modules are concerned, the real dummy is you if BMW can get you to pay big bucks to replace a module that didn't need replacement in the first place
This is a PWM controller with current monitoring etc. This makes pump work less with less fuel demand etc. and is great for diagnostics. Just You know, don't dump it into water and it will work probably for the life of the vehicle.
Absolutely the most amazing electronic repair I've ever seen! Great job Alex!!! I think most mechanics would have just replaced the control units instead of repairing them...
Of course they would replace. It makes no sense to take a chance on spending an hour cleaning a module only to find it still won't work. Its a hit or miss scenario.
@@nickv4073 right, and if it doesn't work then the customer will expect that one hour of labor to go into the cost of the replacement unit. Plus, what if it works and fails again in 76 miles when the customer left for a family road trip. Bottom line, rarely worth the risk if a replacement module is available or unless it's your personal car and you factor in the risk of being stranded.
You are correct it’s a waste of the mechanics time. They get paid flag hours.
Yes, any mechanic worth their weight in salt would do the right thing....and replace the module. ?
@@nickv4073 Also, it might work for a while and then stop working again as the PCB's & componentry continue to degrade - so no dealer is going to want to risk the customer coming back in a few months time and complain that they didn't fix it properly. More than likely at least some of these control units will fail again in the fairly near future.
after cleaning PCB you need to spray CRC 226 to stop corroded areas corroding again
Love the video. Great job as always. The intro is the best. Two great channels. Thanks guys.
My Saturdays have been getting progressively better over the past weeks. Onward, Alex!
Edit: Also the Sreten intro was legendary lol
I always appreciate videos like this, Alex. I got the confidence to fix my own check engine light about a month ago along with doing my own shocks and struts! I didn’t know anything about working on cars a year ago and thanks to you I feel like I know what I’m doing!
Super satisfying video that it's so uplifting and a pleasure to watch just so many little victories - great. Well done.
Totally loved this one. Great learning sesh here!!! You just saved a lot of people a lot of money.
Hey! I recognize that voice at the start! It's Hans....errr I mean Sreten! 😅
Who's voice was that in the intro?
Sreten from M539 restorations. What a good guy!
Glad his alpina b7 is back running again.
Streten from M539Resturations
Sreten!!! We would love a collaboration
Streten Introduction!!! Loved that and of course the content. Great work!
You are one of my favorite CZcams creators! I love your content and I'm seriously thinking about buying another BMW. You make it look so easy as long as you have the knowledge of the system.
Great video!!
you should def invest in an ultrasonic cleaner, would save u so much time with stuff like this
Love the no-nonsense content. Super helpful and entertaining! Getting very tired of the other auto channels tossing in so much drama and other bs. But not legit!
Thanks John!
excellent video. I would have never thought to try and save the module. Thank you for the video. I will look at flood cars completely different now.
Great video I started replacing modules and had some great results probably should have cleaned some but didn’t understand how to until now
Thanks
I believe the corrosion seen at 22:06 is perfectly normal and from the factory. It's the flux residue from a selective soldering process og the fibre optic component/connector. The flux residue is of a type that doesn't need cleaning (no clean flux) and is such left there. No harm in you cleaning it off though :)
As far as ease of repair, significance of repair & amount of money saved, this might be the ultimate diy video.
That's large scale saving a car from the junkyard right there.
Well documented! Don't know if I will ever need the info provided by this video but it was fascinating and entertaining to watch. Thanks!
Great job !
You really went in there and sorted this beautiful BMW out very well.
Great video. I would guess most mechanics (let alone DIY guys) would shy away from working on an electronic control unit. But you are right, what do you have to lose?
Great video Alex. Just want to say that you can a few extra dollars and use isopropyl alcohol for the chemical cleaner instead of the contact cleaner; does the exact same thing but costs just a couple dollars at your local dollar store 💁🏼♂️
Just some food for thought!
This channel is one of my favs. Been watching since tha get go. Professional and on point in all he does. Love watching your stuff.
Don't even drive or have a car, but I love watch car repair/restore vids : ) I think this is the first I've seen of of you working on controllers and it was very informative!
Regarding the ABS unit, I suspect someone inserted a pry bar in that space (for unknown own reasons) and broke the case. That would account for the damaged circuit board, too.
this guy is a wealth of knowledge...bless him for taking the time to content creation that's worth a damn.
Incredibly useful information. Thank you so much!
I think this was my favorite video so far because repairing BMW’s is a pain but the electronics are often considered replacement items. Your wife is going to love having a B7 to cruise around in when she is not hustling people at the track in the Escalade.
Really surprised that so little of the control units have the conformal coating (the yellow protecting layer) on them. Do you think the infotainment system was supposed to be customized for Alpena? Instead of swapping that first module, you could desolder and swap the connector with the broken pin (or just swap that one pin perhaps) to revive the original.
JESUS CHRIST ALONE DIED FOR YOUR SINS & WAS RESURRECTED FROM THE GRAVE! HE IS ALIVE & COMING BACK VERY VERY SOON WITH JUDGEMENT (THESE ARE END TIMES)! PREPARE YOURSELVES, TURN FROM SIN & RUN TO JESUS!
HE KNOWS YOUR PAIN & TROUBLES, HE WANTS TO HEAL & RESTORE YOU! TALK TO HIM LIKE A BEST FRIEND! ASK HIM TO REVEAL HIMSELF TO YOU & HELP YOU TO BELIEVE IF YOU DOUBT! DON'T WAIT TO CRY OUT! NO ONE IS PROMISED TOMORROW! HE LONGS FOR YOU TO INVITE HIM IN, HE LOVES YOU MORE THAN ANY PERSON EVER COULD, HE CREATED YOU!
Jesus answered, “I am the way and the truth and the life. No one comes to the Father except through me."-John 14:6
"But whosoever shall deny me before men, him will I also deny before my Father which is in heaven."-Matthew 10:33
“For the wages of sin is death (hell), but the gift of God is eternal life in Christ Jesus our Lord”-Romans 6:23
That was a TCU and it would not impact the infotainment UI. It’s strictly for telephony related features.
I am following this Alpina project and it is coming back to life. And great deals on the used parts.
This was such a satisfying video!!! Thank you very much for showing all of this to us to see everything come back to life was just amazing and it looks so simple too..Love your video's!!! Thank you thank you thank you..
Enjoyed your video. I am in the electronic failure analysis business. Everything you did was mostly right. The yellow coating on the board in conformal coat and the light blue/white putty looking material is for heat transfer from a part on the printed wiring board to the case. This material gets squeezed during the original assembly process. Over time it will get hard and when you dis-assemble and then re-assemble, it will not have the same intimate contact for proper heat transfer. Using some new heat sink compound on top of the old compound is recommended or replace it all with new material. Never use a wire brush on any surface of the printed wiring board. If the soft bristle toothbrush is not aggressive enough, use one slightly stiffer. Best over all method I use is a mixture of DI water and IPA in an ultrasonic cleaner. Sometimes the area of ionic contamination is under a part and you will never reach it with any brushes.
"Never use a wire brush on any surface of the printed wiring board." 👍
Even when it's ok to use a soft wire brush......be careful it's not a brass coated steel wire brush...hard to tell the difference from looks....use a magnet, if it sticks...it's steel.
Contact cleaner is great, but I’d definitely also recommend DeOxit as something even better for this kind of work. No affiliation, just lots of experience with dirty old electronics.
Amazing video, and well done, Alex. Learning so much from this channel, after your MB series... Thanks for the channel- from a guy in Army Medicine
Great video Alex.Very informative. Enjoy your channel.
I love watching your videos, love how you show diy fixes for simple problems by taking them apart to repair that normal people or shops would just replace costing hundreds or even thousands of dollars. Thank you for showing others how simple it is to fix possible simple issues real cheap. 😁👍
I'm really impressed with how easy the electronic fixes went. I can't wait to see the finished product!
Thanks so much, as a casual observer, hearing and seeing you in action is so helpful and ideas ridden, bravo 👏👏👏
Great video Alex sooo much info to sort control modules! I have a 2096 4.2 supercharged Range Rover and I definitely have had water ingress from the left hand side back window over the infotainment and navigation equipment which are showing rust signs on the covers. I think I may, just may take the worst one out and give it a try. What's the worst that can happen? It's not working anyway!
Alex, this video is proof positive that you are a ROCKSTAR, fantastic descriptions of what you are doing and how. I love this kind of content, keep it coming and you will hit a MILLION subs in no time. GREAT JOB!
Great video, Alex!
Repaired our 2011 Ford Fiesta end of last summer after the ABS pump went bad and Ford service charged us $205 to tell us this, had previously replaced the master cylinder and bled the system to get all air out, including an ABS bleed cycle done with my Autel scanner. The resultant difference of opinion with the service writer and managers caused things to go downhill fast, at which point took the car home and fixed it myself.
Bad ABS pump itself has the exact same symptoms as a bad master cylinder, made it difficult to diagnose the problem correctly. I bought a used ABS pump & module assembly off of ebay for $85.00 for the car(new cost over $800 from Ford, but had been discontinued), swapped my electronic module onto the new used unit and bled the system again with pressure bleeder and ABS pump cycling, works like a champ!
Nice video. Awesome job on the module repair. I would’ve never thought it was possible to do something like that.
I have cleaned many commercial 2 way radios from various forms of corrosive liquids. After cleaning and drying the board, I test it extensively before coating the board with three layers of a silicone conformal coating. The coating also has a UV dye added to it so under a standard Black Light you can check and see if everything has sealed properly. I would recommend to everyone to do a preventative maintenance on modules that could be exposed to excessive moisture. Clean and coat the boards. You can check with any large Electronics supply house like Newark Electronics or in the EU, Farnell Electronics. They would be prime candidates for conformal coatings for circuit boards. One word of caution, if the board needs repair in the future you will need to have some solvent available to spot clean the area where you find a failed component.
I also spotted some surface mount electrolytic capacitors on some of the boards serviced. When these fail after 5 to 10 years they will barf a corrosive electrolyte onto the board which needs to be cleaned before the new part is soldered onto the board. Don't forget to seal the repair with the coating to keep it watertight.
this is an amazing video, as a computer engineer and car guy this is perfect. I fixed a Mercedes active radar sensor from a GLS550 by replacing some of the components that had gone bad
Awesome job Alex! This should give a lot of us driveway mechanics some courage to face the daunting spectre of modern modules. Shared!
Alex truly impressive repairs on this! Love the content!
Love the depth and detail!
Great job. I'm always taking different electronics modules that don't work apart to see if they are repairable before replacing them. Contact cleaner is an awesome product to keep in the toolbox!
I've been waiting for you to post another B7 video! The units that have that gel looking coating is actually called conformal coating. It's used to provide some liquid damage protection.
You can buy that stuff as a luquid in a bottle similar to nail varnish or it comes as a spray.
I've seen some people use actual nail varnish, but I would avoid that as nail varnish can sometimes have some harsh chemicals in it also, if you ever needed to remove the varnish, it would be way tougher than conformal coating which with a little isopropyl alcohol or just by rubbing it, comes off.
Also, you can use an ultrasonic cleaner. Recently, I revived a water damaged DJI Osmo Pocket that showed nothing on the screen when turned on, but the gimbal would move about.
First I tried isopropyl alcohol and cleaned the board with a toothbrush. I tested it and found that the camera gimbal did nothing at all!
Then I tried cleaning the board in a bath of isopropyl alcohol in an ultrasonic cleaner for 10 minutes.
Once I dried it up, I partially reassembled it. I was so excited when it came back to life and the screen was working.
The only thing that wasn't working were the onboard microphones. I think the ultrasonic waves destroyed them.
Still I'm happy the camera gimbal is working and 4k video capture is great!
I can do a workaround with the microphones not working.
Maybe in a future video you can try something similar. It would be interesting to see the results.
Thanks Alex, for another great video.
Looking forward to the next one.
I picked up a '08 335xi a few years back, one of the many small issues like your B7, was the radio wasn't working - I decided to dig into the amp as I read that water gets in. Yep, a bit more involved disassembling the Logic7 amp, but once I got in and found the green fuzz on a few IC's and components, I did pretty much the same drill, CRC and a brush - but I also got in with a jeweler's loupe and dental tools to scrape away corrosion (VERY Carefully) 3 years later it's going strong! I've also had a few where a solder joint wasn't great from new, or just cracked with heat cycles, and a quick touch with a soldering iron resolves the issue.
great video!
A lot of things that you do I believe I am able to do too, but this?
This requieres nice hands and to really know what and where.
Amazing and thanks
Love your videos, Alex! One word of caution, use an ESD strap or at least ground yourself before handling the PWBs. This could save you from unintentional ESD damage.
I agree...although I'm pretty sure these boards are engineered ESD hardened just because of their end assembly environment... But yeah. better safe than sorry though...
You want the guy using a brass bristle brush on the circuit board, to use an ESD strap?
Yeah, I think there's a lot more to board repair he could have gotten into on here before even talking about that.
As an electronics repair tech, rubbing alcohol can work well too. Just be aware that for some of the larger chips, especially if they’re BGA (ball grid array) they may still have corrosion and short circuits under them and still cause issues. I know Samcrac featured a BMW mechanic that knew how to perform board work on some of these cars.
You could soak the pcb in a small bowl of alcohol for a few minutes to get at the bga
also as someone who works on EVs, if its a HV component, just pay the price to get it swapped out. pretty much every EV part with a orange wire going to it has the ability to kill you so it's really not worth the risk of opening it up if you aren't 100% confident in what you are doing
@@dillzilla4454 I was shocked that the wiring didn't ignite with all the corrosion. I would have disconnected the battery immediately and I certainly wouldn't have turned it on whilst the corrosion was there.
@@ultimabear low voltage devices take a LOT of corrosion and very close circuits to catch fire and even it is still very unlikely that it would catch fire rather than just losing contact with the circuit entirely. That is of the main benefits to using a low voltage like 12v in a car. It may not be the best for generating energy or starting your car but it virtually never catches fire.
@@dillzilla4454 It's not the low voltage that is the problem it's the amperage from the lead battery. Try holding an ordinary wire between the contacts of a car battery and you'll drop it pretty quick.
Thank you thank you thank you I have a 2011 BMW 750Li with pretty much all the same issues that yours has this video was a lot of help I cannot thank you enough 👍🏾
Yes!! Happy for this video. I am planning on purchasing a b7 and after two years of research and reading this video is the icing on the cake.
Plus I love anything 7- Series related.