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ENGINE ANTI-POLLUTION SYSTEM FAILURE in ALERT LOG (and little engine light on dashboard)

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citroenroen1   
Thu Jun 06 2024, 12:06am
Joined: Apr 18 2024
Member No: #5495
Location: Los Angeles
An alert came up this morning "ANTI-POLLUTION FAILURE" .

In C6 Alert Log, it showed ENGINE ANTI-POLLUTION SYSTEM FAILURE.

WHAT do I do to fix this ?

Has anyone else ever had this in their ALERT LOG?

Assistance is greatly appreciated.
C6Dave   
Thu Jun 06 2024, 07:35am

Joined: Oct 01 2009
Member No: #1
Location: Northumberland
citroenroen1 wrote ...


This morning Alert came on "ENGINE ANTI-POLLUTION SYSTEM FAILURE" : do you have any idea what I have to buy to fix this?


Could be poor quality diesel,(my 3.0Hdi used to throw a wobbly using supermarket diesel) to many short trips not allowing the DPF system to do a DPF regeneration, A dirty fuel filter, sticking EGR valve, or a low 'EOYLS' level (description: - Click Here - ) can cause the message to appear so you need to have the onboard fault log read to see if you can narrow things down, so can low battery voltage.

Without Lexia to read the error codes, you're not going to be able to narrow it down.

However, a good 'Italian Tune Up' often helps (run the car on a motorway at 40 mph+ for 30 mins+ ) rather than going through the 'Forced Regeneration' process (details herte: - Click Here - ).

Just use the site search function with depollution as the search term as there are lots of posts, faqs about it and the 'Sticky' at the top of this forum explains how it's supposed to work - Click Here -
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