ptcruiser

1998 Mercedes C230...This problem has happened several times, and at the worst times as well. This weekend I made little poopies in the pantalonies.
Going up a steep hill, with a slow moving truck in front, I hit the gas and zipped around him in passing gear. Once I got by and slowed to my normal speed, there was no action when I pressed on the accelerator, but it kept going VERY slowly as if in a limp mode. The solution was to stop the car and restart, and then it runs normally. On a steep hill, this was no easy thing to do. It has also happened at intersections when I was stoped and then accelerated easily when the light changed to green. I hardly got across the intersection. Again, turn off the key and restart, and it works fine.
I am a bit worried about this causing an accident, as I can't get out of the way.
Any ideas?

aquinob

So do you think its the tranny that is causing the issue or the engine not responding to the acceleration from the computer? Either way its electrical. Any codes generated? Other that that I got very else to offer. Sorry...

Ausmbtech

Sounds like the accelerator pedal sensor is failing. It's the sensor on the end of the accelerator cable in the engine bay. A simple and not a particularly expensive fix.

ptcruiser

Just got it back from the shop, and it seems it was the sensor, but maybe another sensor than mentioned?
It was a spring loaded unit with a shaft that certainly was part of the accelerator somewhere down the line, and it was replaced. Seems to work fine now and a lot more responsive to acceleration than is was before.
It was not cheap!!!!!

ptcruiser

It was a throttle position sensor. Checked on the web, and the photo was exactly the part that was replaced.
Here is a link photo for those who may be interested.
http://www.partsgeek.com/catalog/199...on_sensor.html