DIY- BMW E46 Key Fob Battery Remove and Replace VL2020 330xi 530xi 325xi 328xi

Рет қаралды 125,764

4 жыл бұрын

A video on how to replace the battery on a BMW diamond shaped key fob. This particular battery is for a 2002 BMW M3, but this key was used for several years on several BMW models including the 5-series and 3-series. You will need a soldering iron and a rechargeable battery.
Parts and tools used:
HQRP Battery Compatible with 3-Series BMW E46 E90 E91 E92 E93 LX8 FZV LX8FZV Key Fob KeyFob 90 Degrees Pins VL2020
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Soldering Iron Kit Electronics, Yome 14-in-1 60w Adjustable Temperature Soldering Iron with ON/OFF Switch, 5pcs Soldering Iron Tips, Desoldering Pump, Tweezers, Stand, Solder, PU Carry Bag
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X-Acto #1 Precision Knife | Z-Series, Craft Knife, with Safety Cap, #11 Fine Point Blade, Easy-Change Blade System
amzn.to/2qaeW5N
Gorilla Super Glue with Brush & Nozzle Applicator, 12 Gram, Clear
amzn.to/2Kjc3qd
Compatible with: VL2020 3-series BMW E46 E90 E91 E92 E93 LX8 FZV LX8FZV BMW E46 E90 E91 E92 E93 LX8 FZV LX8FZV E83 X3 E53 X5 E9X 5-Series E60 E61 530i 530xi E39 Z4 E85 E86 Key Fob KeyFob
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TopCoat F11 Master-Craftsman Polish & Sealer
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Though I try my best to do a lot of research, Any Do It Yourself Tutorials are made with no guarantees as to correctness or safety. I or KZfaq are not responsible for any loss or damages. Proceed at your own risk.
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Пікірлер: 85

@heyzeuschristos4561 3 жыл бұрын

May I suggest using small vise grips or similar locking pliers to hold the key to lower the risk of someone possibly slicing a finger with the razor knife when cutting open the plastic housing. Clamp vise grips to metal key shaft close to plastic housing. And yes if you are mechanically inclined and have proper tools a soldering iron or gun is more professional as well for removing spot solders and reattaching. Also check battery/key function with vehicle before regluing housing, in case it needs a re-do. Other than these suggestions thanks very much for the vid.

@OmarsGarage 3 жыл бұрын

Thank you for your suggestions. They are all very valid and helpful. I especially don’t want anyone cutting themselves. Thanks for sharing. 👍

@moihawk666 3 жыл бұрын

damn i was using the wrong battery and the wrong video to remove said battery .... thanks for the CORRECT way to do it

@OmarsGarage 3 жыл бұрын

Glad I could help. Definitely gotta make sure it's rechargeable as well.

@reza_dc2 Жыл бұрын

Great video , im going to give it a try on my 04 E60. Going to buy a solder sucker to remove the old solder.

@paolopanetta10011 8 ай бұрын

Best video on this subject. Excellent clear video and instruction

@OmarsGarage 8 ай бұрын

Thank you 🙏

@colwynsnyers903 4 жыл бұрын

Thanks for the tip

@coolandhappy 3 жыл бұрын

Omar, you're saving my life with this video brother! thank you!

@OmarsGarage 3 жыл бұрын

Glad I could be of help.

@ronniestoner1476 Жыл бұрын

Did that battery end up working or did you have to get another battery? I just cut my an open and I'm about to order a battery or trying to go find one

@OmarsGarage Жыл бұрын

This battery worked. It’s working years later.

@baliboy 3 жыл бұрын

Awesome close ups dude, good work. Bending the pin.... not a good idea. You were so close and on the right track... just apply more heat to the solder joint and the pressure you started to apply. Also, using silicone to put it back together works well. If you ever need to do it again.... easy to slice through. Good work for soldering for the first time. Impressive. One tip I would give your viewers is to remove the case before ordering the Panasonic VL2020 battery. The reason is sometimes you just need to flow the joints and the battery will charge again. For example I just opened mine, and I could see what professionals call a 'dry joint' on the solder point. This means the battery can't charge. I have flowed the dry joints by just heating the solder points, and now I need to use the key in the car for half an hour to see if will charge now. Thanks for the video... nice work.

@OmarsGarage 3 жыл бұрын

Thank you for all your input and advice. That’s what this is all about. Helping out our car community 👍

@baliboy 3 жыл бұрын

@@OmarsGarage Exactly. :-)

@biglefty08 Жыл бұрын

Were you able to find a better fitting battery? If so can you post the link to it? Thank you

@mr24k78 Жыл бұрын

Nice work bro 💯

@OmarsGarage Жыл бұрын

Thanks!

@2289rainbowmount4467 3 жыл бұрын

💯 % Thx for this information clip .

@yvonnejohnson277 3 жыл бұрын

I went to dealership it wasn’t the cost I was told. It was $250.00. It took 24 hrs. BMW have a very solid anti-thief alarm. The had to go in through the trunk so we could get it home, and we picked up the new key fob the next day.

@arttafil6792 3 жыл бұрын

Do like I did on my #53 key when the battery got iffy. Go to an lock smith that works on BMW, Mercedes Benz et al. Pay him to do this!! Works for me.

@OmarsGarage 3 жыл бұрын

At that point I would just throw away the key and buy a new car. 😆

@krisklapal9338 3 жыл бұрын

I had this issue and read somewhere that the key can be recharged just by simply driving around with it in the ignition. My key was my spare that the battery had died in, so it made sense and it worked. If it’s the key you normally use, it doesn’t make much sense. However, I would try it before cutting the key open. If that doesn’t work then this video is your next option other than paying sky high for a new one.

@OmarsGarage 3 жыл бұрын

Yeah, this was a 17 year old key that was used daily. The battery was no longer holding a charge. The spare key would hold a charge, but it was so weak you had to be right next to the car for it to work. I replaced both batteries for $10 and 30 minutes of my time.

@mr24k78 Жыл бұрын

Just joined the E36 world 🌎 😂

@OmarsGarage Жыл бұрын

German engineering!

@elgarajedeomar3751 Жыл бұрын

Que bueno!

@2kcars507 4 жыл бұрын

did you test the original battery? Ive done this to mine and i found the battery tested fine - by just heating the soldered terminals it started to work perfectly again.

@OmarsGarage 4 жыл бұрын

I didn’t bother testing it. The batteries were from a 2002 BMW M3 so they were 18 years old. They needed replacement regardless, but thanks for the tip. 👍

@Jamesyshreds 3 жыл бұрын

Which solder thermals did you heat?

@3rdstreetsaintsxx 2 жыл бұрын

Pro tip file down the wide part on the positive side of the battery so the battery can become flush with the board when you solder and u don’t that the battery sticking out like this video

@OmarsGarage 2 жыл бұрын

Makes sense…thanks for the tip.

@basironwan 4 жыл бұрын

Clever German Technology. Once battery drained, just throw away and buy a new one, reset new frequency and cost you a fortune

@rotorblade9508 3 жыл бұрын

No, once the battery id drained you buy a new car 😂

@OmarsGarage 3 жыл бұрын

Sometimes it’s cheaper to buy a new car. The 2002 BMW M3 with one owner and 73,000 miles is not one those cars 😆

@sandor6543 3 жыл бұрын

@@OmarsGarage,

@professionalinspectionserv4228 Жыл бұрын

Car or the key, lol

@luckynkonyane7249 4 жыл бұрын

Did the key work because you said you will update us if it's working.

@OmarsGarage 4 жыл бұрын

Yes the key worked and has been working since I posted this video. Thanks for the question. 👍

@TheBruceg101213 2 жыл бұрын

@@OmarsGarage did you have to reprogram the key?

@OmarsGarage 2 жыл бұрын

@@TheBruceg101213 not that I remember.

@cafertayyarpasa4227 4 жыл бұрын

In offical bmw service , what they do normally, to reunite that key for ,? Glue or something different

@OmarsGarage 4 жыл бұрын

CAFER TAYYAR PASA they won’t do this process. They will charge you to replace the key with a new one and charge you to reprogram it.

@cafertayyarpasa4227 4 жыл бұрын

@@OmarsGarage which is easy 350 dollars cost you than mate .

@OmarsGarage 4 жыл бұрын

CAFER TAYYAR PASA yeah, that what I paid to have a key reprogrammed on my Porsche 911. Also a German car.

@mdostay Жыл бұрын

I did this in my '03 e46 - the new battery died within a couple of months. How do you check that the induction charger is working?

@OmarsGarage Жыл бұрын

Are you sure the battery was a rechargeable battery?

@BabyGangsterIsMe 2 жыл бұрын

I HAVE A QUESTION ..if FOB is out of the battery, u cánt start your car right ??

@OmarsGarage 2 жыл бұрын

From what I understand when you put the key in the ignition it provides power to the key for recharging which in theory should also allow for the car to start.

@BabyGangsterIsMe 2 жыл бұрын

@@OmarsGarage so you saying if the key is out of rechargeable battery, you can't start the car ?

@Charkatak 2 жыл бұрын

Hey, I am not am exorert in BMW but I believe my friend has 2005 325xi model and today he told me that his key fob stopped working. He couldn't open it, so he went to bmw dealership. They told him that this remove would have to be sent to a special place to get this done. Could it be that his car has the same design and needs battery to be soldered?

@OmarsGarage 2 жыл бұрын

Yeah, this same key was used for many years on BMWs. Ask him if it looks like the key in the video. After 17 years I can see it needing a new rechargeable battery.

@Charkatak 2 жыл бұрын

@@OmarsGarage I sent my friend a text and he confirmed that this is the exact key he has. He is kind of scared to open up the remote. Do you know if these cars will actually charge remote batteries while in the ignition?

@OmarsGarage 2 жыл бұрын

The cars are suppose to charge the battery when I’m the ignition but after almost 20 years the rechargeable batteries just can’t hold a good charge. First you will notice that you have to be real close to the car for it to unlock the car. Then eventually it just stops working.

@Charkatak 2 жыл бұрын

@@OmarsGarage So looks like BMW thought that people will get rid of the cars before battery depletes in the key fob! One thing is sad is that key fob will need to by opened forcefully and then glued.

@WunnaAli 10 ай бұрын

I love my bmw but this is such a pain in the ass

@OmarsGarage 10 ай бұрын

I’ve fixed several things on my dads M3. 21 year old car but still a joy to drive.

@mb0782 3 жыл бұрын

Omg i scere... Dont do thes again😭 first time do?😭 If work good you are lucki man!👍

@OmarsGarage 3 жыл бұрын

It was my first time doing it and it worked on both keys. Do or do not, there is not try. 👍

@_IT528 11 ай бұрын

I installed the new battery just like yours and it clocked the car once then never worked again. What did I do wrong

@OmarsGarage 11 ай бұрын

Are you sure it was the rechargeable battery?

@_IT528 10 ай бұрын

@@OmarsGarage I don't know how to re charge the battery if it was dead? But when it worked in the beginning it only locked the car, then the unlock button clicked the car but the door were still locked

@_IT528 10 ай бұрын

@@OmarsGarage now I just have a new battery and a not working fob. I just don't lock doors, also it would randomly lock the doors....then I was locked out the car and payed a lock smith $95 to unlock it.

@_IT528 10 ай бұрын

@@OmarsGarage the locksmith says I need a new key and that it would cost $225 if I chance my mind.

@OmarsGarage 10 ай бұрын

Sounds like the key was going bad. Did you ever get it wet at some point? Not the best news but worth getting a new key. I was quoted $375 at dealer so $275 not too bad.

@lukas______ 3 жыл бұрын

Cheaper and better to just buy a new key fob cover from aliexpress or a silicone cover rather than glue

@OmarsGarage 3 жыл бұрын

That may be a better option than to glue it back together, thanks for the suggestion. I’m guessing this shell clips together and can be prayed open afterwards?

@lukas______ 3 жыл бұрын

@@OmarsGarage yes. You can actually buy a whole key, circuit board, transponder, and battery for $6 and to have them cut your key to match it's an extra few dollars. As well as that you fan by a coding device for $15. Amazing what you can find in China for so cheap. I've had issues with the keyless entry buttons working though. So I'm going to try to replace the battery on my genuine bmw key and see if the aftermarket is in fact dysfunctional or not. If you want a link let me know

@domagojkoprivcic7898 3 жыл бұрын

@lukas LW link to the equipment?

@lukas______ 3 жыл бұрын

@@domagojkoprivcic7898 Won't let me reply with it. Links get deleted. Just search E46 key and AK90+ on AliExpress

@domagojkoprivcic7898 3 жыл бұрын

@@lukas______ is the ak90+ necessary to program the new key fob? I was able replace the battery in my existing key- re-programming upon replacement was done by mating the key to ignition, and pressing a specific button sequence on the key. Is that not possible for the Chinese key fob?