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Engine guides and mods

Roadster Clutch Actuator Setting

Modification Details






Removing The Clutch Actuator For Smart Fortwo (450)

1. Switch off the ignition.
2. Wait for approximately 1 minute.
3. Make sure the clutch is completely closed.

4. Disconnect the electric connection on the clutch actuator motor.
5. Loosen clutch actuator (5) screws (4,9,10).

Installing The Clutch Actuator For Smart Fortwo (450)

Adjust clutch actuator (5) with the engine cold (Coolant temperature max. 40 °C). 
Only hook the spring scale on the special tool (8), not onto the actuator.


Setting The Clutch Actuator

Position the clutch actuator (5) in such a way that the rod (7) is resting securely on the clutch release lever.

Attach the clutch actuator to the transmission with the screws (4, 9, 10) so it is moveable.

Connect the electric connection on the clutch actuator servomotor.

Place special tool (8) on the clutch actuator (5).

Hook spring scale (2) to the special tool (8) and tighten in the direction of the arrow (Fig. 1).
Pre-tensioning force: 50 N.

Tighten screws in the order 9, 10, 4 with 10 ± 1 Nm.

Remove spring scale and special tool.

MB Star Diagnostics

If you have it, Connect diagnostic unit to the OBD plug.


Execute Pulse clutch.
Check error memory.

Clear error memory.
Reset saved clutch data.


Hook spring scale (2) to the special tool (8) and tighten in the direction of the arrow (Fig.1).

Pre-tensioning force: maintain 50 N and loosen screws (4, 9, 10).
Repeat mechanical adjustment procedure if the pre-tensioning force reduces while loosening the screws (4, 9, 10) to 0 N.
 
Reduce pre-tensioning force to 11 N.
Tighten screws in the order 9, 10, 4 with 10 ± 1 Nm.

Set slipping point.

I Don't Have MB Star Diagnostics

OK, just set the actuator and see how it drives. Get the garage to re-teach everything on the next service.

Official Sachs PDF

This info is taken from the Sachs service information PDF. You can download it here.

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