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

Guide to Replacing the Thermostat on the Smart Fortwo 450

Model: Smart Smart 450 - Years: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Part: Thermostat

See other generations:
Video tutorial

In this guide, follow the main instructions to remove and replace the thermostat or thermostat valve of the Smart Fortwo 450. First, open the boot to access the top of the engine; then disconnect the electrical connector of the temperature sensor. Next, open the coolant drain valve, allowing the fluid to drain into a container; then unscrew the thermostat screws to remove it and replace it with the new one. Finally, refit the new valve, reconnecting the hoses and the electrical connector of the sensor.


Updated on 4 June 2026 by ScegliAuto


Related tutorials

Guide to Replace the Thermostat on a Smart Fortwo 800 Diesel
Guide to Replace the Thermostat on a Smart Fortwo 800 Diesel
Smart (1998-2007 / 450) In this video, you will see how to remove and replace the coolant temperature thermostat on the Smart Fortwo 800 Diesel. First, move to the rear to a…
How to Replace the Thermostat on a Smart ForTwo
How to Replace the Thermostat on a Smart ForTwo
Smart (1998-2007 / 450) Before starting, open the rear boot of your Smart ForTwo, then unclip and remove the engine cover. Next, drain the cooling system by unscrewing the r…
Where is the OBD port of the Smart Fortwo 450?
Where is the OBD port of the Smart Fortwo 450?
Smart (1998-2007 / 450) If you still do not know where the OBD port of your Smart Fortwo 450 (1998-2007) is located, read this guide carefully and follow the step-by-step in…

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