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Mercedes Benz S-Class W221

DPF sensor
Hello guys!
My car goes in to limp mode a few minutes after starting it, even imediatly if i floor it. If i stop the car then restart it it works fine then again it goes in limp mode.
The star says Particle filter defective, probable cause DPF pressure sensor.
I would want to know if the sensor is found under the hood like in the pic attatched or under the car, cause i would like to change it myself.
Also i would like to know if the part number is corect A0061539528
Vin number is: WDD2211261A399355
I can't seem to find an original part, i have found some made by Bosch and other manufactuers, will it work as the original and will i be able to delete the error?
thank you in advance!
 

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Discussion Starter #4
I have changed the dpf pressure senssor woth one made by Bosch. At first it allowed me to clear all fault codes, all clear and good. Whent for a test drive accelerated with kickdown it went in limp mode without check engine. The same error shows up, Dpf filter deffective, probable cause Dpf pressure sensor.
i must say that the car only goes in limp mode on hard acceleratioms. If i accelerate slowly it drives normal without problems for any distance.
any ideas anyone?
 
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