BMW Key Fix - New battery / Re-Program E46 BMW key

robdude1969

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Fix a dead BMW key with a new battery! A new key blank is almost $200, so lets just fix it! We take the key fob apart, replace the battery, and program BMW key to the car. We also reprogram 2 BMW keys in case you have more than one. Reprogram - 3:38
This fix is for the 315 mhz diamond shaped key. Mine is a 2002 330i E46, but this should work for these BMW models if the key is the same style. 325Ci, 330Ci, 330xi, 530i, 645Ci, 745i, 745Li, 760i, 760Li, M3, X3, X5, Z4, 325i, 325xi, 525i, 545i, 330i, 540i, M5, Z8, Z3, 740i, 740iL, 750iL, 323Ci, 323i, 328Ci, 328i, 528i, 318ti, 323is
BMW E46 key fob programming
E46 remote key reprogramming
BMW key fob synchronization
E46 key fob reset
Programming BMW transponder key
BMW key fob battery replacement
E46 key fob not working
BMW key fob relearn procedure
E46 key fob initialization
BMW remote key coding
E46 key fob synchronization procedure
BMW key fob reprogramming DIY
Resetting BMW key fob
E46 key fob pairing
BMW key fob battery change
E46 keyless entry programming
Programming BMW smart key
E46 key fob coding instructions
BMW key fob troubleshooting
E46 key fob sync issues
These keywords should help you find relevant information, guides, and tutorials for reprogramming or troubleshooting your BMW E46 key fob. Always refer to your vehicle's manual and follow proper procedures to ensure a successful key fob reprogramming process.
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Опубликовано:

8 апр 2019

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Комментарии : 99

@tsmgguy 3 года назад

Before replacing the battery, try reprogramming the key. Hold the key next to the ignition slot without inserting it. Press and hold the top unlock button, the button nearest the key flat. Continue holding it, and press the center unlock button three times. If you key reprograms, you'll know it immediately.

@robdude1969 3 года назад

Yes! Excellent advice. Then, if that doesn’t work maybe that battery is dead. Good luck everyone!!

@tsmgguy 3 года назад

@@robdude1969 Right! Trying reprogramming first will identify a dead battery, or other problem. I could not have been more surprised when my 20 year old spare key came back to life after being inoperative for so long. The battery had retained a partial charge even though the key had been nowhere near its charger (the key slot) in years.

@robdude1969 3 года назад

@@tsmgguy such great news!! Congrats.

@tadhgmoloney5069 2 года назад

@@tsmgguy p

@Generalusuer 3 года назад

Thank you so much. I replaced my battery. Tested it and nothing i tested every button and component and they were working i had no idea you had to re-sync the key. Great feeling when my doors clicked. 💕💕💕

@robdude1969 3 года назад

I sooo agree! Personal accomplishments are the best right?!?

@richedward Год назад

Holy crap this worked!! The reprogramming tutorial was amazing. Thank you. Reminded that the doors need to be closed!! Thank you again!

@robdude1969 Год назад

Very happy for you!

@ricardodiaz7962 2 года назад

Didn’t even have to program it 🙏 can’t thank you enough this is the best tutorial for this out here

@robdude1969 2 года назад

awesome!!!

@seymorebutts6542 5 лет назад

Nice video man. Perfectly explained and very helpful. Thank you

@pretty.hoodbarbie Месяц назад

Thanks for this! Changed my battery wasn’t working found this tip & it worked✌🏾

@MattA787 5 лет назад

Awesome video. This saved me a ton of money by not having to go to the dealership.

@peterlewis2881 4 года назад

$313.00 to be exact.

@Ps51bx 4 месяца назад

Im grateful i did not have to change my battery. I followed your reprogramming procedure and was successful. Thank you

@robdude1969 4 месяца назад

Awesome.

@marshn12.gaming 6 месяцев назад

You are the only video that shows that you have to let go of the unlock button right after you pressed lock Button 3 times it took me 35 minutes trying all the videos before I found yours

@SkrotNisse1987 Месяц назад

Thanks for this tutorial definitily gonna try this on my BMW 325i batteries in the keys never changed 22 year old car good tutorial 👍

@fortniteboss2837 3 года назад

Absolute legend worked first time. Thanks so much 👍👍👍👍

@robdude1969 3 года назад

Glad it helped!

@tatianaugolini298 2 месяца назад

worked a treat - on re programming keys - nice video

@erizzle67 10 месяцев назад

Diagonal zip ties and one tiny zip tie for the end worked great for my reassembly. Left overnight, looks like new.

@robdude1969 10 месяцев назад

Nice! I’m feeling looseness on another one of mine. Might have to try out your suggestion soon! Cheers!

@nathanialleggs4745 3 года назад

Worked like a charm. Appreciate the video

@strollinstone 3 года назад

Wow - great video, worked like a charm. It did take me a while to get the key apart though. But it works now for first time in two years. Thanks!

@robdude1969 3 года назад

I picked up a 325ci and the battery only holds a charge for a minute or so. I will be doing it again too. Glad it worked for you.

@MansurRami 3 года назад

Really nice video. Thank you!

@felizrodriguez1087 4 года назад

Awesome video. Worked like a charm.

@robdude1969 4 года назад

Glad it helped! seems I have to repair a Mini Cooper key now too....

@josemedeiros007 2 месяца назад

Great job making the video, it was very informative.

@kitchenproject1577 4 года назад

Thx for sharing, this was a great video, the best I've seen yet!

@tweedjohnny8740 Год назад

Thank you very much! Brilliant!

@alanmichaelmunoz7304 3 года назад

Great info

@baliboy 3 года назад

Awesome, Thanks Rob. New battery ordered, fitted and it didn't work. Then I thought... maybe the key needs to be reprogrammed. This is the difference, your video helped. Next problem: The key unlocks the trunk / boot, it unlocks the doors, but wont lock the doors. Thanks again.

@robdude1969 3 года назад

Does the door lock just spin? Probably need to fix the lock parts inside. I have a video for that too. Another common problem. Easy fix. You got this! Pay it forward is a way if life. Love it! That’s why I make these videos!

@baliboy 3 года назад

@@robdude1969 Thanks Rob... you get me then. :-) No it's not the lock... one key works perfectly. I think it is the little button under the BMW logo. I'll see if this has a dry joint on the PCB in the transponder / remote. I also did something else that could be on interest to your subscribers... I found a BMW at a wrecking year... it was relatively new when it was wrecked. The key was in the ignition. I asked the guy if i could by the key. He said "It's of no use to anyone, you can have it". the keys looks brand new right... so I removed the top layer and the PCB with the battery onto my metal key shaft.... Programmed the ley like you said to do....wulha.... looks brand new... :-)

@robdude1969 3 года назад

@@baliboy awesome that you got a brain transplant for your key!!! Good luck on the locks.

@E36andE46vlog 2 года назад

Nice job

@hankchia1011 9 месяцев назад

Thank you. You saved my day.

@robdude1969 8 месяцев назад

Glad I could help!

@nabgentertainment1209 3 года назад

Thanks a lot

@bonux0538 4 года назад

Hi Robdude. Thanks for this video. The battery removal and the programming or my 2 keys did go perfectly well. Just to share an idea, in order to seal the 2 key plastic parts together, I use the Tamiya extra thin cement (for plastic models). Just sand the parts that will receive the glue, apply the glue and put the parts together. 2 jours later, i applied the same glue à long the sealing line. It allows a waterproof sealing, and will offer an easier access to the battery if the battery needs to be reopened at a later stage.

@robdude1969 3 года назад

Good to know Tamiya does the trick. I have to do another key for my Mini Cooper next. Will try Tamiya glue.

@toonicemedia2465 4 года назад

Thanks works great

@toonicemedia2465 3 года назад

Do u still have your bmw?

@donyoung4223 3 года назад

Awesome video.... !!!!!!!

@robdude1969 3 года назад

Don Young thanks. I have to make one for my Mini Cooper key now too. Planned obsolescence is lame.

@darek4488 3 года назад

This is exactly what I needed. I just need to find the right glue for this purpose.

@robdude1969 3 года назад

my e6000 has held up well. some folks like sugru as well. I’m ready to do another one. maybe I will try that too.

@golf11underpar 4 дня назад

Thank you

@eddyeddy3170 10 месяцев назад

Thx 👍

@randyhauer6519 Год назад

Oh My Gosh it worked!!!!......when i opened it up I did see the switch for my middle button was missing!!..i don't use my trunk button ever so I carefully cut the ends then sodered it to the middle button and it works perfectly!!!...wonder if they sell the switch?..but I'm glad to have a working FOB..unlocks and locks..and with better range!!...Thank You!!..My M3 is Happy!!

@randyhauer6519 Год назад

Also i Recommend Getting the Desoldering Wick..i had to do a little cleaning because they are so close to other circuitry ...Get One!

@robdude1969 Год назад

Awesome news! I love hearing people have success in fixing their own stuff! Cheers

@rman8853 2 года назад

Great video and Thanks for sharing. I would have to say that cutting the case is not easy, even with a sharp exacto blade or box cutter. The plastic is very hard (2004 x3 key). I'd like to know what did you guys use for cutting tool? Thanks

@robdude1969 2 года назад

I used x-acto hobby knife

@borisbisch9908 7 месяцев назад

Ich hab mit einer Diamant Trennscheibe den Schlüssel aufgetrennt. Ich habe das in einem Zahnlabor gemacht. Dort gibt es sünne Diamant Trennscheiben

@veniaminilyuchyk334 Год назад

definitely will try this, my e46 key never worked from the beginning very annoying to have to use the key to lock and unlock every time. mine did have the battery changed but it did not look like the previous owner installed the correct battery, maybe that’s my issue??

@robdude1969 Год назад

Good luck!

@GAS.M3 3 года назад

I'll try your steps on reprogramming it...I've tried different ones, but none has work 😒

@drfeelgood1992 2 года назад

Can I get your help. My key was being temperamental with locking and unlocking the car. I assumed it was a battery problem so replaced it. Now reprogramming won't work? Is there any other issues that could cause this

@austindarling1520 3 года назад

Hey! Were there not two prongs on the replacement battery? I didn't see you solder both joints. Just wondering. I bought a VL2020 battery and it has two prongs similar to the OE.

@robdude1969 3 года назад

soldering starts at 1:45 - sorry the clothes clip blocks the second solder point a bit, but there are two pins to solder.

@v.p.3225 3 года назад

What if the e46 had an aftermarket key fob installed would this still work if i bought a new factory key ?

@joncole5650 Год назад

2000 e 46 - opened case - checked battery and it reads 3.15V. Tried reprogramming with case back together as well as open so I could be sure the buttons on the board were working..............nada. Ran through the proceedure 20 times and nothing. Any ideas?

@harryb5573 4 года назад

Is there a way you can determine if the key has indeed a dead battery before I start tearing it apart and mess it up?

@robdude1969 4 года назад

good question. Perhaps you should try the re-bind / programming process a few times first.

@MindOfStefan 4 года назад

Question, if I were to do this to my key, and buy uncut and unprogrammed keys from Amazon .. can program the uncut keys using this technique?

@robdude1969 4 года назад

maybe try asking the seller on amazon. Please post your findings.

@robdude1969 3 года назад

Did you try? Did it work???

@marryyano1 Год назад

Good job bro!

@karlagomez9264 Год назад

How much do you charge to fix my battery

@witciu12 4 года назад

nice video xd

@Madjed2024 4 года назад

Hi Great video I am on blood thinners and can’t use sharp objects and don’t have any tools Would you be willing to help if I sent you my key . I can cover the expenses if reasonable Thanks much

@robdude1969 4 года назад

Currently too many projects to take on this kind of work - perhaps you have a phone repair place close to you that could do the repair for you. I am guessing a locksmith as well if you are unable.

@Madjed2024 4 года назад

@@robdude1969 Thank you kindly for your response and advice

@davidduncanson3847 3 года назад

They say the original battery was good for 10-15 years so you'll see a lot more people watching these types of videos as the last year BMW used the diamond key was 2010.

@robdude1969 3 года назад

nice... they say it recharges too... how???? I call BS

@davidduncanson3847 3 года назад

@@robdude1969the key for my 2002 E46 is original, never been opened. Key still works fine, so the battery is 18 years old, a non rechargeable battery would have lasted a 2-3 years at best. The induction ring in the ignition barrel charges the battery in the key, much like a rechargeable toothbrush when it sits in the charging stand.

@robdude1969 3 года назад

@@davidduncanson3847 have you tried re-linking the key?