How to use Lonsdor ST-P181 for Porsche idle start-stop reset & fault codes clear?

This is Lonsdor ST-P181 for Porsche. I want to use it to reset idle start-stop & clear fault codes. how-to-use-lonsdor-st-p18- for-porsche-02


Lonsdor ST-P181 functions description:

  1. The tool is used for the Porsche vehicle with idle start-stop function, it can memorize the start-stop state when a car stalls. For example, if the start-stop function is off/on after a car stalls, the next time you start the car then the memory will stay in the closed/open state.

Note: The mechanism of this feature is not directly to cancel the idle start -stop, but to remember the state of the last start-stop function. In addition, restore factory settings is also available.

  1. It can apply to clearing the car fault code. For example, if the engine fault light is on, you do not have to go to repair shop to clear it.
  2. After the purchase please connect this tool to vehicle OBD and read vehicle VIN code. Once confirmed, it can only be used in this car. After reparation, the vehicle will be restored to the factory settings. Moreover, the device can be used to open/close the function of memorizing the car start-stop state unlimitedly.


Option 1: Choose “Start and stop function settings”

Press the icon “Start”

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When this function is enabled, it can remember the state of idle start/stop when the car was shutting down last time.


Reading vehicle information.

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Whether to bind VIN code xxx is the car in use?  After binding, this function can only be used by the car.

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Memorize the open/close state of idle start/stop system after the car is shutting down.

The start stop function will be restored to the factory state.

Press “Enter”, get the current data XXX and press the up and down button to reset the value you want.

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Confirming system…

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Setup complete.

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Option 2: Clear fault codes

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Press the icon “Start”


Clearing fault code, please wait…

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The fault code is cleared.

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Option 3: Choose “Check binding information”

The device is already bound to the car with VIN.

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Lonsdor ST-P181 for Porsche to reset idle start-stop & clear fault codes