BMW 7 Series Key Fob Battery Remote Replacement F26, G02 (1994 – 2019)

The luxury 7 series BWM sedan has been a top of the line car for decades. It’s key batteries are usually easy to replace if you have a newer model. For other models, see the all BMW Key Fob Batteries page.

ModelTrimsYearsKey Fob TypeKey Fob SubTypeRechargeable? Ease of changeBatteryBuy
E38 7 Series728i, 728iL, 730i, 730iL, 735i, 735iL, 740i, 740iL, 740iL P, 750i, 750iL, 750iL P, 750iL S, L7, 725tds, 730d, 740d 1994-2001Diamond Shaped KeyYes, Requires solder, soldering gun, and rechargeable battery with legs to replaceVL 2020 3v
Check on Amazon
E65 7 Series730i, 735i, 740i, 745i, 750i, 760i, Alpina B7, 730d, 740d, 745d 2001-2008T Shaped KeyComfort AccessNo. Easy to change batteryCR2032
Check on Amazon
E65 7 Series730i, 735i, 740i, 745i, 750i, 760i, Alpina B7, 730d, 740d, 745d 2001-2008T Shaped KeyNon Comfort AccessYes, Requires solder, soldering gun, and rechargeable battery with legs to replaceVL 2020 3v
Check on Amazon
E66 Long-Wheelbase 7 Series735Li, 745Li, 760Li, 730Li, 730Ld, 740Li, 750Li 2001-2008T Shaped KeyComfort AccessNo. Easy to change batteryCR2032
Check on Amazon
E66 Long-Wheelbase 7 Series735Li, 745Li, 760Li, 730Li, 730Ld, 740Li, 750Li 2001-2008T Shaped KeyNon Comfort AccessYes, Requires solder, soldering gun, and rechargeable battery with legs to replaceVL 2020 3v
Check on Amazon
F01 7 Series730i/Li, 740i/Li, 750i/Li, 760i/Li, ActiveHybrid7 /
ActiveHybrid7L, Alpina B, 730d, 740d, 750d
2008-2015Trapezoid Shaped KeyNo. Easy to change batteryCR2450
Check on Amazon
G11 7 Series730i/730Li, 740i/740Li , 740e/740Le , 750i/750Li, M760Li, Alpina B7, 725d/725Ld, 730d/730Ld, 740d/740Ld, 750d/750Ld 2016, 2017, 2018, 2019Sleek Slant Shaped KeyNo. Easy to change batteryCR2032
Check on Amazon
G11 7 Series730i/730Li, 740i/740Li , 740e/740Le , 750i/750Li, M760Li, Alpina B7, 725d/725Ld, 730d/730Ld, 740d/740Ld, 750d/750Ld 2016, 2017, 2018, 2019Display KeyYes. But larger li-ion battery not available yet3.7 V, li ion rechargeable polymer battery 1.97 Wh, 535 mah

Jump to Year:

T Shaped Key Comfort Access 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Comfort AccessBMW 7-Series

T Shaped Key Non-Comfort Access 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Non-Comfort AccessBMW 7-Series

Trapezoid Shaped Key 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008

Trapezoid Shaped Key 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008

Replace the E38 Diamond key fob battery (1994-2001)

The oldest 7-series models used the diamond key fob, which has a rechargeable VL2020 battery inside. Here’s my video on changing that battery:

1998 - 2005 BMW Diamond Key E46 3 Series Key Fob Battery Replacement DIY
one here to replace your diamond key fob battery:

Keyecu VL2020 Remote Key Rechargeable Battery for BMW E46 E60 E92 3 328 330 X5 (90 Degree Leg)
  • Battery Model: VL2020
  • Please compare the leg position carefully,this battery is 90 degrees leg
  • it is a Rechargeable battery

GIF Visual Guide

Alright. In this video, I'm going to show you how to replace the battery in this BMW diamond key that was used in the E46. This is for the 3- series from 1998 to 2005. BMW cars. So this is a fairly complex change, but I'm going to get right into it here.

So the first thing you need to do on this key is you need to separate it into two halves. So you'll notice around the edge here, there's kind of a line that separates this key Fob into two pieces . What you're first going to do is take a box cutter and score all the way around, cutting through and actually breaking through the plastic all the way around this key. And this may take some time.

This may take five minutes. This could take ten minutes. If you want to kind of do it carefully, try to keep the key as intact as possible. But the best key that I found to get some leverage was right here at the top. You can eventually cut through and then you can see the box cutter even going through there to start to get some separation between these two pieces.

So once you score all the way around, you'll be able to separate these two pieces here and get access to the circuit board and the battery that we'll need to replace. Now, the battery that you need here is a VL 2020. This is a rechargeable battery. Normally, when the key is in the ignition, this battery charges. But for whatever reason, if it dies and you need to replace it, this is what we're going to show you how to do.

So inside this part of the Fob here, there's a circuit board that you can remove. You can see there's kind of two points that connects here and you can just probably kind of tap it out like so you can't tap it out, maybe some small tweezers here, get that circuit board very delicately pull that out. Okay. So the circuit board here is what we're going to be working on. The key here is this battery that we want to replace.

There's two points that's attached to the board here. You can see these two points of solder here and here. These are called the legs of the battery. And these are where the battery actually attaches to the board. So to replace this battery, we need to get these desolder.

And then when we buy replacement, make sure that you buy one that has legs that are offset 90 degrees here and here, not that's offset 180 degrees, because then it won't match up with your circuit board. So I've got a soldering iron here and a little soldering vacuum. And what I'm going to do is just desolder these points here. And I just got this soldering iron for $19 on Amazon. And if you've never soldered anything before, don't worry.

This is actually not a bad little spot. To learn because there's not a whole lot you can screw up too much here. So what I'm just doing here is melting the solder and then suck it up. And I'm just going to melt some more here. Just decent amount and suck it up.

Okay. So we've got quite a bit removed there on that one. I'm going to do this other point here and see where we're at that's melted down nicely. A little more off here.

Okay.

So you can see all this solder that we've gotten off of here. And now this should allow us to easily pull off the VL 2020 rechargeable battery here from the circuit board. So let's see how we did. Excellent. Okay, so we've still got a little bit of solder there that we need to go.

So actually, this time I'm just going to melt it and see if I can let it drop through. There we go. Perfect. So, yeah, sometimes you can just have to suck it all away, but just melt it out. And there we've got the leg of the battery out on this one.

The second leg disappeared over the years. But that's okay. I think we'll still be able to attach it here, especially since we have a new battery. So new battery. Make sure that we've got leg here and a leg over here.

This one only has one. If you only have one, then work with what you got. So we're going to resolder this now. Attaching the battery there.

And the second point, the leg would actually go right in here. So I don't have a new battery. But we'd take the new one, make sure that the legs get in through those two points there.

I'm going to actually clear off some of this solder here to make a little more room here and get the legs in through there.

And then we are going to resolder once we have this actually attached here.

Okay. Then we'll take a little bit of solder and just solder on these points here.

Okay. And then the other leg over here like so. Okay, so now we've resoldered the new battery onto the board here and then we'll go ahead and just replace this back into its correct spot. Make sure the buttons here are going to the button side here. So flip this over and make sure that aligns back in there correctly.

All right. Snaps right in and then I'd apply some super glue here around the edges and then put the battery back together or the Fob back together. And if you superglue that, then you have a brand new working key Fob with a new VL 2020 battery on your 3- series for the E46.

How to replace the E65 7 Series (2001-2008) key fob remote battery with comfort access

The 7-Series Remote Key fob with Comfort Access contains a non-rechargeable battery CR2032 that is a simple quick change when it dies.

Amazon Basics 4 Pack CR2032 3 Volt Lithium Coin Cell Battery
  • IN THE BOX: 4-pack of CR2032 3 volt lithium coin cell batteries; replacement for BR2032, DL2032, and ECR2032
  • DEVICE COMPATIBLE: Ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • DESIGNED TO LAST: 8-year leak-free shelf life

Here’s a video on how to change the battery in this comfort access 7 series key remote model:

2001 - 2008 BMW 7 Series Comfort Access Key Battery Replacement E65 Fob Remote

BMW 7-Series

Comfort Access

How to replace the E65 7-Series (2001-2008) key fob remote battery with non-comfort access

Replacing the battery in a non-comfort access remote key fob requires a bit more work. These batteries are rechargeable and will usually last longer then the comfort access keys as they are charged when the key is inserted into the car dash. If this battery does die, you’ll need to pry apart the key, unsolder two points on the circuit board and re-solder a new rechargeable battery, the VL2020, to the board.

Keyecu VL2020 Remote Key Rechargeable Battery for BMW E46 E60 E92 3 328 330 X5 (90 Degree Leg)
  • Battery Model: VL2020
  • Please compare the leg position carefully,this battery is 90 degrees leg
  • it is a Rechargeable battery

GIF Visual Guide

This short video on how to change the battery for the 7-Series 2001 to 2008. BMW remote key here. This is for models 730i, 735i, 2001 through 2008. This is the T shaped model.

Now, there's two of these key Fob. We turn over and look at the back. One of them has this little easy access to a non rechargeable battery. And this is for the Non-Comfort Access key Fob. And this is for BMW 7-Series.

This one's really easy to change. The other Non-Comfort Access model requires soldering and uses a rechargeable battery. So this one, we should pop out the internal key here, which will give us access into the back here. And to change this battery, there's a little opening right there. Go ahead and pop that off.

Little flathead screwdriver makes it really easy. Gets access to the internal battery. The battery you need here is a CR 2032. And this will just kind of pop out when you remove the backing here. Take that out.

Make sure that the lettering is up. Put a new one back in and pop the back on. And we should be all set. Good to go. And that's how you change the battery again.

This is for the Non-Comfort Access version. BMW 7-Series 2001 to 2018.

Here’s the video on changing the non-comfort access VL2020 battery:

2001 - 2008 BMW 7 Series Non-Comfort Access Key Battery Replacement E65 Fob Remote

BMW 7-Series

BMW 7-Series Non Comfort Access Remote

How to replace the F01 7 Series (2008-2015) key fob remote battery

These years from 2008-2015, the 7-Series BMW Sedan’s all came with at least a remote unlock key fob that included a changeable, non-rechargeable battery: the CR2450  or CR 2450 coin battery. You can change this battery in just a few minutes with a screwdriver, or even just some nail clippers.

Models: 730i/Li, 740i/Li, 750i/Li, 760i/Li, ActiveHybrid7 /
ActiveHybrid7L, Alpina B, 730d, 740d, 750d

GIF Visual Guide

Alright. In this video, I'm going to show you how to change the battery in a 7-Series. And this is for model years 2001 to 2008 BMW. This is for 7-Series.

This is this T shaped key and we're going to be changing the Non-Comfort Access version. So there's two versions of this key. One has a battery that's replaceable non rechargeable. This other one is replaceable too, but it's a rechargeable battery. So if your back looks like this, it has a way to easily pop the back off and you have Comfort Access key.

And that's not what we're going to be looking at in this video. And you can check out my other video on how to change the battery on that one. But if you have a Non-Comfort Access key, so your back looks like this, there's no easy way to pop anything off. This requires a bit more work and we'll need some tools. So what we'll need is a box cutter here, filled screwdriver handy.

And then we're going to need a handy dandy soldering iron because we're going to have to do some desoldering of the actual circuit board. So to start off, we need to disassemble these two pieces here. And what you'll need to do is take your box cutter and score around the edges here, especially this point at the top if you pull out the valet key. So the valet key is in here, pull that out and you can kind of start to wiggle around. And you'll need to cut pretty decently along the sides here.

And this may take 5-10 minutes to kind of do this nicely. And once you're able to kind of score all the way around, you can take your small flathead screwdriver and start to just gently pry apart the sides here. And as you do that, you'll start to get some separation between these two pieces. And eventually you're able to pull these two pieces apart to access the internals of the key here. And once you're on the inside, you can see the battery here.

And this is the VL 2020. This is the battery that will need to be replaced. Normally this battery gets recharged when your key is inserted or near the inside of the car itself. But if it does need to be replaced, we take this circuit board out here and you can see there's these two points here that have some solder on them. And this is where the VL 2020 actually attaches to the circuit board.

And so that's what we're going to be desoldering now.

So we'll take our soldering iron and we're just going to get this going here to destroy these two points here. What I'm doing here is just melting down the solder. And then I've got a caller pump and it's going to suck up that solder. I'm going to do that on the other one here.

And if you've never soldered or desoldered something before, this is actually a pretty straightforward one. There's quite a bit of access into the solder. There's not a lot of components right next to it, which is nice. And if I'm being Truthful, this is the first time I've ever done this. So you're seeing it for the first time here as well.

And I got this soldering kit just on Amazon for like $20. And I'll link to it in the video here. All right. So that's melting down. Melting down and suck it up.

Didn't quite get enough. There a little bit of it, but I think we need to get a little bit more, keep the heat on here. That looks better and suck. Okay, let's see how we're looking here. If we can start to pry this these legs off of this battery here.

So I'm going to put the solder and iron away and let's see if we're able to pull this off yet. Look at that. That's wiggling. All right, so we're looking pretty good. Let's try just touching this point here a little bit.

I think we've still got some over here.

This is a little more complicated of a change than your Comfort Access key. But once we get these two points there, we're getting some separation. Excellent. So there's these two leg points. Perfect.

And as you can see, now that we've got the solder down there, it's just this one here is taking a little bit more. If I can just clean some of those down.

Yes. Okay. So still a little bit of solder there. But there's these two legs on this battery. I don't want to obviously break it here, but we've got one side off.

Perfect. Try to decide the other side a little bit more here.

And as I'm doing this, I'm actually going to just kind of push it away here. I don't want to touch with the actual iron, but there we go. Okay. So now we've removed the VL 2020 battery from the board. And you can see this battery has these two legs on it.

They're about a 90 degree angle. So make sure when you buy a replacement for this, you don't get the ones that are offset about 180 degrees. You'll see some have a leg here and here. Make sure you get these 90 degree offset ones. And then once we have a new one of these, we'll take our board and we're just going to line up.

Make sure we get these two slots where we took it off of. Make sure those line up correctly so you can see these two slots for where the battery is going to go back in. If we look at it from this side, go ahead and put the legs back into the board. So we've got those. Alright.

So we got the legs in there.

Great. So now we can see our two leg points here. Then we're going to take a little bit of solder and we're going to solder this back on and like so a little bit of solder make sure that connection is good.

Okay and that should do it. We can put this back together. This board back here so - this is on the 7-Series. This is the T shaped one. We've got the new VL 2020 on there and then we might want to do some superglue I don't have at the moment but superglue around the edges here because when we pry that apart it doesn't really like snap back together at this point so I'd recommend a little bit of superglue and then we can replace with that new VL 2020 put that back on there, snap that together and voila that's how you replace the rechargeable VL.

2020 battery on the BMW 7-Series.

2008 - 2015 BMW 7 Series Key Battery Replacement F01 Fob Remote

Battery: CR2450

Energizer Lithium Coin Blister Pack Watch/Electronic Batteries, 1 Count (Pack of 2)
  • Pack of 2 batteries
  • Lithium coin batteries for watches and electronic devices
  • Has a power of 3 volts

GIF Visual Guide

Okay. This is a quick video on how to change the key Fob for the 2008 to 2015 BMW 7-Series again, this is years around 2008 models 2015. So let's do it. This is trapezoid style key. And to change the key Fob on the key battery here, in this Fob flip over.

You'll see a little button you can depress to remove the valet key. Here, take that out. And if you look inside here, you can see a hole on the longer side of the trapezoid. And if you stick the key in here, this will be able to pop off this back like so, which reveals the battery that we need to change. Now, to get in the battery, you can use handy dandy little small Phillips screwdriver, flathead screwdriver.

You could use some nail Clippers. Get in there and pop that battery right out. The 2450 is the battery that you need and put in a new battery. Pop that back in, put the backpack on and you're good to go. So that's how you change the battery for a 7-Series.

So the 730i, 740i, 740i/Li active hybrid again for kind of early 2000 range. That's how you change battery for BMW 7-Series.

How to replace the G11 7 Series (2016-2019) key fob remote battery

how to replace the 7 series g11 key fob battery

If you don’t have a display key, you’ll need to replace your key fob battery with a standard CR2032 watch battery every few years. Here’s a video on how to replace it:

2016 - 2019 BMW 7 Series Key Battery Replacement G11 Fob Remote

Battery: CR2032

Amazon Basics 4 Pack CR2032 3 Volt Lithium Coin Cell Battery
  • IN THE BOX: 4-pack of CR2032 3 volt lithium coin cell batteries; replacement for BR2032, DL2032, and ECR2032
  • DEVICE COMPATIBLE: Ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • DESIGNED TO LAST: 8-year leak-free shelf life

GIF Visual Guide

This quick video on how to replace the key Fob battery in a BMW 7-Series. And this is for some more recent models. So this is for years 2016 through present so 2017, 2018, 2019 etc. All right, so let's get into it. The first thing you need to do to replace this battery is to press this button on the side here and release the valet key.

And once you've moved the valet key, set that off on the side. I'll flip the key over. And right next to the valet keyhole, there's a small indentation here. You can put a small Phillips or small flathead screwdriver. You can even use the key.

And in that little indentation, there be able to get some leverage and pop this back off. So once you pop the backing off comes out pretty easily. This gives you access to the internal battery that you'll want to replace. And this is a CR 2032 3 volt battery. Pop this out.

There's these prongs at the top. Just kind of get in between those and just have some Springs. So pop that out, put in a new battery again, this is a 3 volt CR 2032 watch style battery. And just place it in here at the bottom. First, pop that in.

And then when you're replacing the backing here to make sure that there's some two kind of teeth here at the base of the backing and put those in first, and that way that the rest of the top here will snap into place, go ahead and replace the valet key, and boom. So that's how you change the battery for BMW 7-Series 2016 to present.