Throttle Positon Sensor - Is this the right fix?
#1
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Join Date: Nov 2013
Location: Wisconsin, USA
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1998 C43, 2001 S500
Throttle Positon Sensor - Is this the right fix?
I have just acquired a one owner 2001 S500 with 49,000 miles.
I have the same symptoms that have been attributed to a bad Throttle Position Sensor in that I will lose the ability to accelerate while driving and will have to wait for the motor to "catch up" to the gas pedal. This will also cause the "check engine" MIL.
However, the MIL will clear on it's own after driving and not having a slow acceleration incident. I have found that the slow acceleration seems to be triggered by pushing the gas pedal past the kick point. If I don't floor it than it functions normally. But I can't live like that.
I have read a billion threads on this issue but haven't found one that mimics my situation. My first instinct is to replace the TPS anyway but I just wanted to make sure there wasn't another issue I wasn't aware of. Any insights would be greatly appreciated.
Thanks!
I have the same symptoms that have been attributed to a bad Throttle Position Sensor in that I will lose the ability to accelerate while driving and will have to wait for the motor to "catch up" to the gas pedal. This will also cause the "check engine" MIL.
However, the MIL will clear on it's own after driving and not having a slow acceleration incident. I have found that the slow acceleration seems to be triggered by pushing the gas pedal past the kick point. If I don't floor it than it functions normally. But I can't live like that.
I have read a billion threads on this issue but haven't found one that mimics my situation. My first instinct is to replace the TPS anyway but I just wanted to make sure there wasn't another issue I wasn't aware of. Any insights would be greatly appreciated.
Thanks!
#2
Member
Replace the fuel filter, your description matches a failing filter.
#3
Senior Member
#5
Did replacing the fuel filter fix your issue? I'm having a similar issue (https://mbworld.org/forums/c-class-w...e-driving.html)
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#7