Do it yourself
Frequently asked questions about cars and motorcycles

How to Open the Doors of a Smart Fortwo with a Flat Remote Battery

Model: Smart Smart 451 - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
Part: Door lock

See other generations:
Video tutorial

Here are the instructions to open the doors of the vehicle in case of an emergency with a flat remote battery on a Smart Fortwo. To open the doors, simply insert the physical key into the lock cylinder located under the driver's side door handle, turning it to unlock the doors.

Use the same key to start the engine. Then, restore the remote's functionality by opening it and replacing the battery with a new one (with the same specification).


Posted on 5 August 2026 by ScegliAuto


Related tutorials

Smart (1998-2007 / 450) In today's tutorial video, learn how to unlock the Smart Fortwo with your key remote, as well as discover the main features of the vehicle. First, ta…
Smart (2007-2015 / 451) Today, in this short and simple guide, see how to disassemble and replace the battery of the remote key for the Smart Fortwo. First, take the remote …
Smart (2014-2022 / 453) This is a very simple maintenance task. To open the rear boot of a Smart Fortwo, press the button located above the handle of the rear boot, then lif…

Other guides you may be interested in

How to Set the Time in an Audi A4?

In this tutorial, you will see how to set the time in an Audi A4, a very simple and quick operation to perform after replacing the battery or when the time changes. First, insert the key and turn on the instrument cluster. Then, press the "SETUP" button located on the center console. Next, press the upper left arrow button, navigate to the "Time" option, and use the central knob to adjust the clock. Finally, set any necessary formats and save by returning to the main screen.

Watch the video!


by ScegliAuto

More videos