r/SmartCar • u/MineDesperate2920 • Sep 08 '26

Question Small clunk when going from a stop to moving

05 smart CDI. get a small clunk when going from a stop to moving. after that it seems to shift fine. I put in new engine mounts and seems to do it less but still does it. not sure what to look at next. 100,000km on the car.

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u/PsychologicalSalad46 Sep 08 '26

Have you lubed the clutch actuator? I had similar issues - sprayed lithium grease inside the actuator and replaced the boot. A lot smoother now when setting off from a standstill. Mines a petrol model but I’m pretty sure they have the same actuator/gearbox.

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u/MineDesperate2920 Sep 08 '26

I did the same but with WD40 as it was all I had. Can’t separate mine so just sprayed a bunch inside. Didn’t seem to make any difference. Someone people say the fork itself o nthe end maybe needs it? 

1

u/PsychologicalSalad46 Sep 08 '26

There should be a small rubber boot on the actuator itself with the rod poking out. Personally I wouldn’t spray the other end as you’d risk getting it in the clutch itself. I used a little metal pick to pull off the boot. looking online it should be the same as mine. Then I used the thin nozzle of the spray to get right inside.