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

Clutch Actuator on Smart 451

Model: Smart Smart 451 - Years 2007-2015
Part: Clutch

In this video tutorial, you can gain insight into the operation of the clutch actuator on the Smart 451. First, note that the Smart features a robotised automatic gearbox consisting of a dry clutch and gears. The gear shifts are not done manually but are executed by actuators, as is the control of the clutch. Inside the actuator (see video), there are gears. Once you have removed the actuator using a screwdriver, you will notice that inside there is an electric motor that transfers movement within this actuator. This electric motor is controlled by a square wave from the control unit. Inside this motor, there is a type of spiral that works on the internal gear; this component tends to wear out over time.

Updated on 30 April 2026 by ScegliAuto

Video tutorial

Related tutorials

How to Install the Clutch Actuator on the Smart Fortwo 451
How to Install the Clutch Actuator on the Smart Fortwo 451
Smart (2007-2015 / 451) In today's tutorial video, you will learn how to install the clutch actuator on the Smart Fortwo 451 by following the instructions below. First, lift…
How to Replace the Clutch Actuator on a Smart Fortwo 451
How to Replace the Clutch Actuator on a Smart Fortwo 451
Smart (2007-2015 / 451) To determine if it is necessary to replace the clutch actuator on a Smart Fortwo 451, perform a check on the vehicle. Open the bonnet and remove the …
How to Replace the Clutch Actuator on a Smart 451?
How to Replace the Clutch Actuator on a Smart 451?
Smart (2007-2015 / 451) To replace the clutch actuator, locate it: it is situated at the bottom of the vehicle. To remove it, disconnect the connector and use a pneumatic gu…

Other guides you may be interested in

How to Replace the Remote Battery for the Volvo XC40?

In this tutorial, you will see how to replace the battery in the remote for the Volvo XC40, a very simple and quick operation. For this, you will need a replacement battery of type CR2032 and possibly a small flathead screwdriver. First, remove the front cover by pressing the button on the metal ring, then locate the second button, press it as well, and remove the opposite cover. Next, open the circular cap, take out the old battery, and insert the new one in the opposite direction. Finally, reassemble everything.

Watch the video!


by ScegliAuto

More videos