[Apachedawg]

My 2009 FourTwo started chugging a few weeks ago. It was fine under load but when you tried to move forward in drive or reverse it would lurch. Well it lurched on the driver way and would not move. When I put it in drive or reverse the D and R would not show up on the display. Looked through the forums and it was suggested to service the clutch actuator. I removed it and the arm was all the way out and even with the motor removed it would not go back in. I decided to buy a new one. It arrived and I installed it in the same position as the old one, the car moved but it was still lurching a little bit. I moved the actuator in a notch or two until when I drove it the car drove a lot smoother. Fast forward to this week. The starter was making a little grinding sound when you let off the key so I headed to the auto parts store to order a new one. Stopped and put the car in park and when I went to leave the gear selection showed up on the display but the car goes no where. Any suggestions? Car has 96,000 miles on it.

 

[Apachedawg]

So 95 looks and no help. I guess I have a unique issue.

 

[dhlairbusb4]

I had similiar issues with my 09 cabrio. I did the clutch actuator service and lube. Always do the tranny relearn procedure each time you remove/adjust the actuator.
Then, I did the gear motor service/cleaning... and at the same time changed the tranny fluid. Its quite an easy job... once you get past the air intake manifold!
No issues since, car runs great... Hope this helps.

 

[Apachedawg]

I replaced the clutch actuator a couple of months ago because my old one just locked up. I also did the relearn proceed immure after. It was fine for a while and started acting up.

 

[twcom]

I am also reading up on how the Clutch actuator rod will eventually punch trough socket in the fork rendering the poor Smart undrivable. Corrosion and erosion are deemed to be the main causes for socket wear. That you changed the actuator and it initially worked my make the clutch fork a suspect.

 

[Apachedawg]

So as it turned out 2 bolts were completely missing from the transmission 1 was broken off and 2 were loose causing the transmission and engine to separate 3/4 of an inch. Unfortunately the input shaft was damaged as was the clutch. So a rebuilt transmission from Mercedes and a new clutch assy and I’m back on the road. I do not know how those bolts got loose or missing but I will be checking them periodically from now on.

 

[dhlairbusb4]

Adog, Have you been hangin with M&M, doing that off road thing???