BMW key battery replacement (without comfort acces) / how to change battery / E90 key fob DIY

It would have cost me 200 dollar for a new key, now I changed it myself for only 5 dollar...
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Battery: bought on ebay for 5 dollar. Search for: Panasonic 2020 with legs or BMW key battery

Sound: I do not own any of these rights. Please let me know something if it's against any rules.

[abelucious]

BMW should be ashamed of themselves for giving people a key fob that’s impossible to change the battery on, smh

[syberkd]

Thank you for the video, I didn’t know how to replace the battery for this type of key. Will save me money, thank you, I’ve liked and subscribed 😎

[florianthill]

I opened mine with a knife, replaced the battery and used some tape to hold it together on the sides. And it works again!

[chakabakaofficial]

BRO i did the thing as you showed but key functions good but it can't go into the whole so i can't start my key the key anymore because it doesnt fit anymore...please you have advice to help..?

[drama]

hoi welke type batterij moet ik kopen.op de oude staat vl2020 panasonic, maar op onlineshop zie ik dat ze van zelfde type 2 soorten verkopen.Welke is de goede eigenlijk?Panasonic VL2020-1VCE Oplaadbare knoopcel VL2020 Lithium 20 mAh 3 V 1 stuk(s) of is het die andere >><>>>> Panasonic VL2020-1HFE Oplaadbare knoopcel VL2020 Lithium 20 mAh 3 V 1 stuk(s)???

[milovan]

I used a Dremel tool with circular cutting blade and it took me one minute to disassemble the two pieces. Then sealed it back up with black silicone. Thanks for the video and battery identification.

[joemonday]

You should have tested your remote after you replaced the battery to show people the remote actually works with the new battery.

[garygentzel]

What yr & models does this video cover - thank you 🙏

[upeguii]

I did the same thing, the car starts but the buttons dont work, what should I do to programm the buttons?

[marcell]

Hi, there is any time until you must replace battery? I heard something to change until 3 minutes, right?

[fabriziobassi]

Sorry for my wrong reply to WheepyMAW ! The battery is really RECHARGEABLE. It recharges through the LC 125 kHz resonant tank on the same PCB side where the battery is mounted. But, as any rechargeable battery, it wears out as time passes and recharge number increases.
So a battery substitution becomes unavoidable after many years. You can try to fit a non-rechargeable battery, but it will suffer overheating and power drop if car is used (the key is in car immobilizer transponder range) for long times.
For door open / close there is a separate 315 / 433 MHz pure transmitter IC supplied by the battery with a separate, different antenna.
Nevertheless I cannot guarantee that you do not need a rolling code reset of the part by some specific SW, that is to say it could be you experience a fail in the substitution.

[audunjemtland]

Could you have softened the already made solder and changed the battery?

[thijsn]

Thanx. Easy fix and everything works again.. also the open and lock buttons.. thanx for the video.

[syazmira]

Pde yg tengk video ni kalau xpandai buat jgn buat takut remote tu rosak😇 sekian terime kasih

[_JimmyBeGood]

How do you remove the battery? It is soldered in so it can’t be removed.

[Jaketson]

Does the key have to be reprogrammed after battery change? I only have one key on me so I'm hesitant to do this.

[nevesxy]

How do you take the battery off tho? I don’t have the tools really, I think

[muhammadrizal]

Bkn ke dia cas mase kte dh masuk kan kunci tu time nk bwk keto

[nick]

No links to the battery like you said you would.

[cleangal]

I'm so close to being done with bmw, period. Plastic parts, recalls, ridiculous key fobs .... I really don't have time to raise a car like a baby.