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Engine Fault - Risk of filter clogging. P filter add level low
#1
I had a major service done recently (Halfords, for better or worse). No problems. 

I filled the car up with diesel a few days ago and as soon as I put the key in the ignition I received the following warning messages:
  • Engine Fault
  • Risk of filter clogging
  • P filter add level low
I'm wondering why this could have happened immediately after filling up. Also is a top-up of particle filter additive something that a garage would typically do at a major service?
My car: 2012 Citroen Berlingo Multispace XTR - 1.6 HDI 7J9HP  
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#2
Hopefully others will confirm, but I'm guessing that a 2012 engine will be using EOLYS as the DPF additive. If so, it's probably not part of a service. It is a bit of a coincidence though so maybe worth asking Halfords if it is part of their major service.
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  • robjwood
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#3
Absolutely right @cancunia, as it's a pouch, there is no "simple" top-up method and so they would likely not touch it as part of a regular service. Nor would Halfords have the DiagBox software kit to tell the ECU that it was refilled, even if they could replace the pouch.

@robjwood - it's likely you have hit 100k miles, that triggers an automatic warning of the kind you are getting, since there is no measurement system on the Eolys pouch - the ECU guesses the level based on mileage and number of fill-ups from new.

Opening the fuel cap each time, injects a measured amount of Eolys into the fuel tank, and you have hit that limit. There's a sensor to detect the cap being opened, so filling up one last time has triggered the system to warn of the pouch being depleted.

Only way out is a replacement pouch (or refill it if it has not already split) and use DiagBox software & Actia interface to "code" in a replacement pouch. so that means Citroen dealer, experienced Indy garage, or home job with the right gear only to achieve this - otherwise that warning will never go away.
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[-] The following 2 users say Thank You to Zion for this post:
  • brajomobil, robjwood
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#4
Thank Zion, very informative answer (and yes, the car has done just over 100K).

I've literally just got off the phone with Halfords and the guy there confirmed they definitely don't do it as part of the major service. He also mentioned a 'pouch' that may need to be replaced/refilled.

Thanks for the info again.
My car: 2012 Citroen Berlingo Multispace XTR - 1.6 HDI 7J9HP  
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#5
Thanks for the replies. I got it done via a good independent for £160. The main dealer quoted nearly £400!
My car: 2012 Citroen Berlingo Multispace XTR - 1.6 HDI 7J9HP  
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#6
Cracking. That's a fair price.
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#7
(17-10-2022, 07:05 PM)robjwood Wrote:  Thanks for the replies. I got it done via a good independent for £160. The main dealer quoted nearly £400!

Good to know you got it fixed for a good price, can you name the garage in case others need work done and happen to be in your area?
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#8
(18-10-2022, 08:05 AM)cancunia Wrote:  
(17-10-2022, 07:05 PM)robjwood Wrote:  Thanks for the replies. I got it done via a good independent for £160. The main dealer quoted nearly £400!

Good to know you got it fixed for a good price, can you name the garage in case others need work done and happen to be in your area?

Of course. It was JAC Autos (https://jacautos.co.uk/) in Earlswood, West Midlands. Bit of a 2CV fan by the looks of it too!
My car: 2012 Citroen Berlingo Multispace XTR - 1.6 HDI 7J9HP  
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  • cancunia
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