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

Why Won't the Smart Fortwo Start?

Model: Smart Smart 451 - Years 2007-2015
Part: Checks and maintenance

If the Smart Fortwo won't start, the most common problem is related to the crankshaft position sensor. This happens because the sensor mounted on the crankshaft of this car model is a type that has now been replaced by a more recent one. This newer sensor is equipped with an electronic board that allows for more precise detection compared to the previous one. Consequently, if you replace the original sensor of the Smart Fortwo with this newer sensor, you should be able to start the car. The video also illustrates the different functioning of the sensors.

Updated on 18 April 2026 by ScegliAuto

Video tutorial

Related tutorials

How to Open the Bonnet of a Smart ForTwo
How to Open the Bonnet of a Smart ForTwo
Smart (2007-2015 / 451) Before you begin, exit the cabin of your Smart ForTwo and head to the front of the car. Start by releasing the catches located inside the front grill…
How to Start the Engine on the Smart ForTwo?
How to Start the Engine on the Smart ForTwo?
Smart (1998-2007 / 450) Starting the engine of the Smart ForTwo 450 is very simple. First, insert the key into the ignition and turn it to the second position to activate th…
How to Remove the Gear Knob from a Smart ForTwo
How to Remove the Gear Knob from a Smart ForTwo
Smart (2004-2006 / 454, Fourfour1) Before you begin, sit in the driver's seat of your Smart ForTwo. To carry out this removal safely, it is strongly recommended to switch off the engin…

    Frequently Asked Questions

    • Smart 1998-2007 - How do you unlock the Smart Fortwo immobilizer? Read answer
    • Smart 1998-2007 - Where is the horn of the Smart 450 located? Read answer
    • Smart 1998-2007 - Where is the jack on a Smart ForTwo? Read answer

How to Reset the Central Locking of the Volkswagen Golf 4?

If the central locking system of the Volkswagen Golf 4 is not working, it is likely necessary to reset the system: to do this, open the driver's door and detach the side panel of the dashboard next to the steering wheel. Under this panel, you will find the fuses, including the one for the central locking, which is indicated in the manual as number 14. To reset the system, remove this fuse from its housing, then reinsert it or replace it with a new one of the same amperage: this will reset the central locking system.

Watch the video!


by ScegliAuto

More videos