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 in the Smart 452

Model: Smart Smart Roadster, 452 - Years: 2003, 2004, 2005
Part: Key

See other generations:
Video tutorial

In this new mini guide, we will explain in detail how to correctly replace the button battery located inside the key of your Smart 452. It will only take a few seconds to complete the entire operation. First, obtain a flat-head screwdriver and use it to fully open the cover.

Once done, you will finally have access to the exhausted battery. Simply remove it and replace it with a new, perfectly compatible one. Finally, close the cover and test the key's functionality.


Updated on 18 May 2026 by ScegliAuto


Related tutorials

How to Replace the Steering Wheel on a Smart 452?
How to Replace the Steering Wheel on a Smart 452?
Smart (2003-2005 / Roadster, 452) To replace the steering wheel on a Smart 452, first disconnect the battery to prevent the front airbag from deploying accidentally. Once the battery …
How to Replace the Gear Knob on a Smart 452?
How to Replace the Gear Knob on a Smart 452?
Smart (2003-2005 / Roadster, 452) To replace the gear knob on a Smart 452, grip it and press the button located on its side. This will allow you to pull upwards and disengage the knob…
How to Replace the Remote Battery of the Smart ForTwo?
How to Replace the Remote Battery of the Smart ForTwo?
Smart (2003-2005 / Roadster, 452) In this video, you can see how to replace the remote battery of the Smart ForTwo. For this simple operation, you only need a small flat-head screwdri…

    Frequently Asked Questions

    • Smart 1998-2007 - What to do if the key gets stuck in the Smart? Read answer

How to Reset the AdBlue Warning Light on a Peugeot Boxer

To reset the AdBlue system on a 2018 Peugeot Boxer, follow these steps: Start the engine and ensure the vehicle is parked in a well-ventilated area. Locate the "MENU" button on the dashboard or steering wheel controls. Press and hold the "MENU" button until the menu options appear on the display. Use the arrow buttons or scroll wheel to access the "Vehicle Settings" or "Settings" menu. Select the "AdBlue" or "AdBlue System" option. Look for the "Recharge" or "Reset" option in the AdBlue menu. Once you find the reset option, select it and confirm your choice when prompted. The system will be reset, and a confirmation message may appear on the display. Turn off the engine and wait a few seconds. Restart the engine and check that the AdBlue system has been reset.

Watch the video!


by ScegliAuto

More videos