How to change the battery on bmw key fob

Q: How much does it cost to replace BMW key fob battery?

If you have a smart key or comfort access BMW key fob, youll need to replace the battery by following these quick steps: Purchase a CR2032 battery from an auto shop or department store. You can expect to pay about $2 for it.

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How can I replace the battery in my BMW key fob?

A few days ago, I went to the store. When I tried to lock and unlock my car, the key fob wasn't responding. How do I replace the battery in my BMW key fob?

Standard key fob batteries typically last for three or four years. Depending on the BMW key fob you have, it may be time for a replacement.

If you have a smart key or comfort access BMW key fob, you’ll need to replace the battery by following these quick steps:

Purchase a CR2032 battery from an auto shop or department store. You can expect to pay about $2 for it.
Remove the valet key by pressing the tab on your key fob.
Use the key or a flathead screwdriver to pry open your battery cover.
Remove the dead battery and replace it with the new one.
Close your key fob and return the key to its housing.

If you can’t open your key fob because it has an indent in the side, you have a non-comfort access key fob. Since your key fob battery is rechargeable through your car’s ignition, you’ll need to go for a long drive to recharge the battery.

Once you’ve successfully replaced or recharged the battery, be sure to test it out by locking and unlocking the doors a few times. And before you head out again, take a moment to take a look at the Jerry app to find out how much you can save on your car insurance.

A licensed broker that offers end-to-end support, the Jerry app gathers affordable quotes, helps you switch plans, and will even help you cancel your old policy.

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How do you change the battery in a BMW 328i key fob?

My car remote died, and I don’t have a backup. I need to install a new battery ASAP. How do you replace the key battery in a BMW 3 Series?

That sounds frustrating! Luckily, it’s pretty easy to change the battery in a BMW 328i key fob. Here’s how to do it:

First, press and hold the small button located at the base of your key fob. Doing so will allow you to remove the metal key from your fob.
Feel along the edge of the key fob until you locate a small hole. Insert a small flathead screwdriver or use your metal key to pry off the back panel of the key fob.
Carefully remove the old battery. Make sure to note where the negative and positive terminals are situated, as you’ll need to orient your new battery the same way.
Place your new battery in the key fob. Try not to touch the terminals as you do this since that can decrease the battery life of your key.
Finally, replace the back panel. You should feel a click when the two halves are properly attached. Then, you can insert the metal key and test out your new key fob battery!

Since you’re taking some time to change the battery in your car remote, why not take an extra minute to learn more about your car insurance options with the Jerry app? Just download the app and answer some quick questions to see a list of competitive quotes from providers like Nationwide and Safeco.

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Nov 8, 2014

Hi guys, I'm driving a 2010 E90 320i. Felt that the remote is not sensitive when unlocking doors. Usually need to be very near to car or need to press unlock a few times. Could it be the battery weak or something else?

Where can I change the battery? Or can I DIY? The key that I'm holding is different from the post I found in here or in YouTube. View attachment 65133 View attachment 65134

Any advice?

MW

Well-Known Member

Nov 8, 2014

Re: Key battery change

It's faster to just search YouTube.

Nov 9, 2014

Re: Key battery change

Just depress those 'parallel lines' and pull the normal key out, then use some pen or pencil or small fork(spelling checked) to open the rear cover and you will see a small battery inside. Change that.

If dunno, check youtube like brudder here said.

If still dunno, just go to hardware shop and the uncle owners probably have done this many times for customers.

If still dunno, then throw the key fob away. Order new one from PML (last one not I say one hor).

Nov 13, 2014

Re: Key battery change

Thanks guys! Have actually search YouTube before posting here. The keys shown in YouTube is different from mine.

This is mine:
View attachment 65190

This is from YouTube:
View attachment 65191 View attachment 65192

So there is no holes on my key to ply open.

Any guys have experience changing battery for the key which is the same as mine?

Nov 13, 2014

Re: Key battery change

Yours look like non CA version however don't know how to replace one of those. Did a quick google search for non confort access key fob battery and found this: Non-Comfort Access KeyFob

Might work for you.

Nov 13, 2014

Re: Key battery change

Only comfort access key fobs can change battery.

Nov 14, 2014

Re: Key battery change

spec07;1104872 said:

Where can I change the battery? Or can I DIY? The key that I'm holding is different from the post I found in here or in YouTube. View attachment 65133 View attachment 65134

Any advice?

Hallo can I ask you a question ? do you place a lot of stuffs in your trunk ?

Do you know there is an antenna in the trunk ? yes in the trunk ...

Do check it and adjust the antenna and you should be fine!

Nov 15, 2014

Re: Key battery change

Red_Bean_Bun;1105243 said:

Only comfort access key fobs can change battery.

Oh no.... Seems like impossible to change the battery unless I dismantle the whole key.

Nov 15, 2014

Re: Key battery change

SUPAN;1105283 said:

Hallo can I ask you a question ? do you place a lot of stuffs in your trunk ?

Do you know there is an antenna in the trunk ? yes in the trunk ...

Do check it and adjust the antenna and you should be fine!

My trunk is almost empty. Any idea where is the antenna located?

Nov 21, 2014

Re: Key battery change

i have the exact same key for my e90.

looking for solution here as well ... thanks.

Nov 22, 2014

Re: Key battery change

nkglfrs;1105782 said:

i have the exact same key for my e90.

looking for solution here as well ... thanks.

Same here. Still no solution for me. Unless you follow Juzme link.

Mar 7, 2015

Re: Key battery change

Some of the keys cannot be opened easily. Some are fixed - u can call up Performance and they will let you know if your battery can be changed easily or not. If it cannot be, like for the 7 series E65 / E66 which has a rechargeable battery - you will have to cut the key open.

The 7 series uses the rechargeable Panasonic VL2020. You can buy this battery at Sim Lim Square or Sim Lim Tower (Kim Chew) and ask the shop to solder for you. Cost will be less than 30 dollars.... which is better than buying a new key fob which costs 500 from Performance.

There are some articles online on this issue.

Basically, I used a blade to cut it open and use Gorilla Glue from Giant to glue it back. It takes an extended drive to charge the battery.

View attachment 66715

Oct 21, 2018

Hi bros, i have successfully changed my e93 battery. Have a few leftover batteries and would like to provide a service to cover the cost of buying my soldering equipment. Lmk if you guys need help. 9116 9430

1,018.1 KB Views: 2,162

What kind of battery does a BMW key fob take?

For drivers with BMW Comfort Access, BMW key fob battery replacement will require a CR2032 battery. Here's how to replace the battery from your BMW key fob: Press in the small tab on the side of your key fob, and remove the metal valet key.

How much does it cost to replace BMW key fob battery?

If you have a smart key or comfort access BMW key fob, you'll need to replace the battery by following these quick steps: Purchase a CR2032 battery from an auto shop or department store. You can expect to pay about $2 for it.