Smart Fortwo Clutch Actuator P0900 Fault — Repair Specialist | The Vehicle Check

Fault code P0900 on a Smart Fortwo points directly to clutch actuator failure on the Softip automated gearbox system. The Vehicle Check specialises in Smart Fortwo clutch actuator repair and cloning — covering P0900 and all related actuator fault codes on both the 450 and 451 generation Smart Fortwo. Nationwide mail-in postal service with drop off at our Enfield office.

Smart Fortwo Clutch Actuator — Why It Fails

The Smart Fortwo uses a Softip automated manual gearbox — a robotised system that operates the clutch and gear changes automatically without a traditional clutch pedal. The clutch actuator is the electromechanical unit responsible for clutch engagement and disengagement. Over time the actuator motor brushes wear, internal sensors drift and circuit board components degrade — causing P0900 and associated fault codes to store.

Smart Fortwo clutch actuator failure is a well-documented and common fault — particularly on higher mileage examples. Our full clutch actuator repair and cloning service covers all Smart Fortwo variants.

Fault Codes on Smart Fortwo Actuator Failure

P0900

Clutch actuator circuit open — primary fault code on Smart Fortwo actuator motor failure.

P0810

Clutch position sensor circuit — sensor reporting incorrect position data due to actuator failure.

P1603

Clutch actuator internal fault — stored alongside P0900 on Smart Fortwo actuator failures.

Symptoms on Smart Fortwo Actuator Failure

  • Gearbox in limp mode — locked in one gear
  • Vehicle will not move from stationary
  • Gear changes refused — stuck in neutral
  • Violent jerking or juddering at low speed
  • Gearbox warning light on dashboard
  • Loss of drive after flat battery

Models Covered

Smart Fortwo 450
Smart Fortwo 451
Smart Roadster

How Our Service Works

1
Contact us with your fault codes. Contact form or call 0203 489 2610.
2
Remove your actuator and read our how to send your unit guide.
3
Post to: The Vehicle Check, Office 13, 25 Mollison Avenue, Enfield, EN3 7LW.
4
We repair or clone at component level with full testing before return.
5
Refit and calibrate. Clutch calibration required — we provide the procedure before returning.

Don't See What You Need?

Call 0203 489 2610 or email info@thevehiclecheck.co.uk.

Smart Fortwo P0900 Stored? Send Your Actuator Today.

Contact us first with your fault codes. Post from anywhere in the UK or drop off at our Enfield office. Fast turnaround, warranty included.

Call: 0203 489 2610  |  Email: info@thevehiclecheck.co.uk

Office 13, 25 Mollison Avenue, Enfield, EN3 7LW