Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Replace the Key Battery on a Volkswagen Passat

Model: Volkswagen Passat B8, 3G, MK 8 - Years 2014-2023
Part: Key

To correctly replace the battery inside your 2018 Volkswagen Passat key, it takes just under two minutes. Follow these instructions. First, press the small button located at the bottom of the cover to fully extract the physical key. Once done, use the same key to open the cover and locate the button cell battery. Remove it and replace it with a new compatible one. Finally, reassemble the cover and reinsert the emergency key.

Updated on 3 July 2026 by ScegliAuto

Video tutorial

Related tutorials

How to replace the key battery of a Volkswagen Passat
How to replace the key battery of a Volkswagen Passat
Volkswagen Passat (2014-2023 / B8, 3G, MK 8) Start by pressing and holding the side button of the electric key of your Volkswagen Passat, then extract the physical emergency key. Next, use the e…
How to Replace the Key Battery on a Volkswagen Passat
Volkswagen Passat (2005-2010 / B6, 3C) Start by pressing the button on the top side of your Volkswagen Passat key and pulling out the physical key. Next, unclip and remove the top part of …
How to Replace the Key Battery in a Volkswagen Passat B6
How to Replace the Key Battery in a Volkswagen Passat B6
Volkswagen Passat (2005-2010 / B6, 3C) If the battery in your Volkswagen Passat B6 key is completely dead and you need to replace it, this guide is just what you need. Let’s go through the…

Other guides you may be interested in

How to Reset the Tyre Pressure Light on the Opel Grandland X

While driving, if you notice the tyre pressure warning light coming on, first check the actual inflation pressure of the tyres and, if necessary, restore the pressures recommended by the manufacturer. After restoring the correct pressures, you need to reset the warning light that has illuminated on the instrument cluster. To do this, locate the reset button on the lower central console. Press this button and hold it down for at least 3 seconds, after which the low pressure indication will turn off.

Watch the video!


by ScegliAuto

More videos