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The yellow light: The anti-pollution system

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Tjensen   
Wed Nov 14 2018, 11:42pm
Joined: Jul 17 2012
Member No: #954
Location: Bergen
My first time with the yellow light (car at 155 000km). The Alert pointed to the anti-pollution system. Found many error codes and ERased them. After 40 km the yellow light again (Engine codes P3008, P300B, P1457) and an almost understandable text: Additive level status: Minimum level not reached.. Still 600ml left and 860km since last regeneration (average 657 between regenerations) I am using a Foxwell diagnostic unit. Anyone familiar with the codes ?
MikkelCPH   
Thu Nov 15 2018, 08:20pm
Joined: Feb 24 2016
Member No: #2532
Location: Copenhagen
I had mine regenerated and filled up at 112,000 km having maybe had too many short tours? I don't remember any error code or code at all just a service warning that it had to be fixed.
Tjensen   
Thu Nov 15 2018, 09:13pm
Joined: Jul 17 2012
Member No: #954
Location: Bergen
Thanks for feedback, but probably more complicated. There is still enough fluid. The error messages are about airflow issues and missing communication with particle filter. But there are so many messages, some that should be ignored and some are important, so I am hoping that someone had the same experience and solved it.
Tjensen   
Tue Nov 20 2018, 04:09pm
Joined: Jul 17 2012
Member No: #954
Location: Bergen
More checking: After erasing all error messages, the same one "Anti-pullution system faulty" came again after 50 km. And then:
P1457: Sensor or particle filter missing
P3008,P300B Airflow problems
Live data: 3g/l soot level, clogging 55%, 5mbar difference between out and in, 73g additive in filter, 602ml remaining, 869km since last regeneration, average 657km between regenarations. My guess: Something blocks regeneration and I should not drive too much before fixing. Anyone with tips/experiences ?
MGmike   
Tue Nov 20 2018, 05:29pm
Joined: May 21 2017
Member No: #3151
Location: South Queensferry
I've no experience of this particular error but my error code look up tool comes up with "Unable to pull vacuum in tank" for the P1457! Not that my system is infallible where Citroen is concerned but, as you can read the live data from the DPF sensors, I would be looking elsewhere. Airflow issues usually point to EGR valves but I would also check the swirl valves have not ruptured the rubber membrane.

Tjensen   
Mon Nov 26 2018, 06:52pm
Joined: Jul 17 2012
Member No: #954
Location: Bergen
Today a Citroen garage/dealer had the car. No dramatic fault or warnings, only the P1457 massage that somehow caused regeneration to not happen. They regenerated (terrible noise for a long time !) and erased warnings. All OK for now, but if the next regeneration fails with the same error, I should change the sensor at the filter.
 

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