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 Permanently Disable the Start&Stop System on the Smart 451

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

See other generations:
Video tutorial

Permanently disabling the START&STOP system on the Smart 451 is a very simple operation, which can be done independently thanks to our brief video tutorial. To disable the system, you need to open the compartment of the system using a flat-head screwdriver, located on the lower dashboard near the gearbox, and once opened, disconnect the connector.

Insert a wire into the connector to create a bridge between terminal 4 and terminal 2, then seal everything with high-temperature insulating tape and reinsert the connector into the compartment without reconnecting it. Close the compartment and turn on the ignition; the light will flash, but the system will no longer function.


Updated on 26 September 2026 by ScegliAuto


Related tutorials

How to activate and deactivate the Start&Stop function of the Smart Fortwo
How to activate and deactivate the Start&Stop function of the Smart Fortwo
Smart (2014-2022 / 453) In this guide, we will see the main instructions that will allow us to activate and deactivate the Start&Stop system of the Smart Fortwo. First of al…
How do you deactivate the Start&Stop of the Smart car?
How do you deactivate the Start&Stop of the Smart car?
Smart (2014-2022 / 453) It will be possible to deactivate the Start&Stop of the Smart by turning on the instrument panel and then locating the button with the letter A insid…
How to Activate and Deactivate the Start&Stop System on the Smart Fortwo
How to Activate and Deactivate the Start&Stop System on the Smart Fortwo
Smart (2014-2022 / 453) In this brief guide, you will learn how to activate and deactivate the Start&Stop system on the Smart Fortwo. First, get inside the vehicle and start…

How to Reset the Tire Pressure Light on a MG ZS?

On the instrument cluster of the MG ZS, the tire pressure light that appears can be reset by inflating the tires to the correct pressure: this value will be indicated on the sticker attached to the driver's door pillar. Once the tires have been properly inflated, you can turn on the instrument cluster and navigate through the menu until you find the option that indicates tire pressure: if this screen shows the new values, the light will turn off; otherwise, you will need to drive for a few miles so that the sensors can read the new values and turn off the light afterward.

Watch the video!


by ScegliAuto

More videos