BenzWorld Junior Member
Date registered: Apr 2009
Vehicle: 2002 C230 Coupe
Location: NY, USA
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
Just a quick update. Delay/Hesitation when accelerating happened again. Coincidentally, the temperature has been lower the past two days if that has something to do with it. In each case, it appears the trigger point is the vehicle decelerating to a low speed (maybe around 20 MPH) followed by accelrrating.
It would field like when pressing on the throttle pedal, the initially pressed down result in no acceleration. When press deeper, the vehicle would respond and provide the acceleration. Since the throttle pedal is pressed deeper already by then, the vehicle would feel like a surge.
On this problem, I have the following done:
Spark plug change
Transmission electrical connector replaced
Prior to that, MB replaced ECU, CAM Shaft Solenoid, O2 sensors, MAPF sensor, Harness connecting them due to a TSB related with leaky CAM shaft solenoid.
This problem existed before all these fixes but it appears this elusive problem is still there.