BMW 3-Series Key Fob Battery Remote Replacement E36, E46, E90, F30, F31, F34 (1990 – 2019)

The 3-series is one of BMW’s oldest sedans. It has has nearly every major key fob that BMW has produced. The past major internal name models have been the E36, E46, E90, F30. For other models, see the all BMW Key Fob Batteries page.

ModelTrimsKey Fob TypeSubTypeBatteryBuy
E36 3 Series316i, 318i, 318is, 320i, 323i, 325i, 328i, M3, 318tds, 325td, 325tdsU Shaped KeyCR2016
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E46 3 Series316i, 316ci, 318i, 318ci, 320i, 320ci, 323i, 323ci, 325i, 325ci, 328i, 328ci, 330i, 330ci, M3, 318d, 320d, 320Cd, 330d, 330CdDiamond Shaped KeyRequires solder, soldering gun, and rechargeable battery with legs to replaceVL 2020 3v
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E90 3 Series316i, 318i, 320i, 320si, 323i, 325i, 328i, 330i, 335i, 335is, M3, M3 GTS, 316d, 318d, 320d, 320d ED, 325d, 330d, 335dRectangular Shaped KeyComfort AccessCR2032
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E90 3 Series316i, 318i, 320i, 320si, 323i, 325i, 328i, 330i, 335i, 335is, M3, M3 GTS, 316d, 318d, 320d, 320d ED, 325d, 330d, 335dRectangular Shaped KeyNon Comfort Access. Requires solder, soldering gun, and rechargeable battery with legs to replaceVL 2020 3v
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F30 3 Series316i, 318i, 320i, 320i ED, 328i, 330i, 335i, 340i, ActiveHybrid 3, 330e, 316d, 318d, 320d ED, 325d, 328d, 330d, 335dTrapezoid Shaped KeyCR2450
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F31 3 Series328i, 320d, 330d, 320i, 316d, 318dTrapezoid Shaped KeyCR2450
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F34 3 Series Gran Turismo320i, 328i, 335i, 318d, 320d, 325dTrapezoid Shaped KeyCR2450
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How to replace the F30 3-Series (2013-2019) key fob battery

This model uses the easy to change BMW Trapezoid Shaped Key. This takes a simple CR2450 coin battery type. You don’t even need any special tools to change this one. Here’s a video showing how to change or replace the battery:

2013 - 2019 BMW 3 Series Key Battery Replacement F30 Fob Remote

Sale
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

This key is also used in the F31 3 Series 328i, 320d, 330d, 320i, 316d, 318d (2013-present)
and the F34 3 Series Gran Turismo 320i, 328i, 335i, 318d, 320d, 325d (2013-present)

How to replace the E90 3-Series (2006-2012) comfort access key fob battery

Battery: CR2032

2006 - 2012 BMW 3 Series Key Battery Replacement E90 Fob Remote

AmazonBasics CR2032 3 Volt Lithium Coin Cell Battery - 4-Pack
  • 4-pack of lithium coin cell batteries; CR2032 cell size
  • 8-year leak-free shelf life, ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • Replacement for BR2032, DL2032, and ECR2032

How to replace the E90 3-Series (2006-2012) non comfort access rectangular key fob battery

The rectangular remote has a rechargeable VL2020 battery inside that is recharged when the key is in the ignition. It may die eventually though and need to be replaced. To change this battery, pry apart the key and de-solder the two points that connect the battery to the circuit board inside:

2006 - 2012 BMW 3 Series Non-Comfort Access Key Battery Replacement E90 Fob Remote

Buy this battery on Amazon, make sure to get one with 90-degree connection points:

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

How to replace the E46 3-Series (1998-2005) key fob battery

This requires a solder iron, and a VL2020 rechargeable battery to replace this key fob. Also a box cutter or utility knife is handy to cut open the key fob. Watch my video on how to replace the E46 key fob battery:

1998 - 2005 BMW E46 3 Series Key Fob Battery Replacement DIY

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

How to replace the E36 3-Series (1990-1997) key fob battery