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    4. : When does the anti-pollution system fault message appear on the Citroen C4 1.6 hdi?

When does the anti-pollution system fault message appear on the Citroen C4 1.6 hdi?
Years 2004-2010

Answer

One of the causes of this problem can be, as repeatedly pointed out by the owners of this car, the clogged diesel filter. Replaced the latter and reset the warning light in the workshop, the problem has been solved.
Posted on: 11 February 2022 by ScegliAuto

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