Eolys?

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frer8833
Posts: 81
Joined: 30 Mar 2023, 00:10
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Re: Eolys?

Unread post by frer8833 »

gagatd wrote: 04 Jun 2025, 12:04 Can you help me, i dont know what type of Eolys I need for my Peugeot 508 1.6 BlueHdi 88kW, 2017. One service said POWERFLEX, the other said EXTEND? My VIN: VF3**************[VIN obfuscated, can be read by forum staff]**************[VIN obfuscated, can be read by forum staff]
Both works, Powerflex is 3rd generation and Eolys Extend is 4th gen which is more effective and recommended.
wheeler
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Re: Eolys?

Unread post by wheeler »

gagatd wrote: 04 Jun 2025, 12:04 Can you help me, i dont know what type of Eolys I need for my Peugeot 508 1.6 BlueHdi 88kW, 2017. One service said POWERFLEX, the other said EXTEND? My VIN: VF3**************[VIN obfuscated, can be read by forum staff]
You need EXTEND
kdcooke85
Posts: 1
Joined: 14 Jun 2025, 00:02
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Re: Eolys?

Unread post by kdcooke85 »

Hi all, new to the forum.

Could someone kindly check my :VIN: VF7**************[VIN obfuscated, can be read by forum staff] to see which Eolys I should be using? Also, what would be the max capacity?

Many thanks in advance.

*Edit*

I think I've worked it out after reading most pages of this thread. Thanks for all the posts. Also used this site, which I'm sure it's linked in this thread somewhere, but I have been looking all over, haha.

https://www.franceauto.pl/what-fluid-fap

I have a blue clip, so I'm powerflex.
I have a December 2015 1.6 bluehdi Citroen C4 grand picasso.
perfidus
Donor 2024
Posts: 91
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Re: Eolys?

Unread post by perfidus »

Hi,
I want to change my van's DPF in the near future and also to top up Eolys tank.
VIN: VF7**************[VIN obfuscated, can be read by forum staff]

For the capacity of the reservoir Lexia diagnosing tool is showing something like 2,62 litres (remaining shows 1.93 L but the tank feels empy)
What type of fluid I'll need?
Many thanks!

**EDIT**
Look to same site as described above, www.france-auto.eu, and found the type - Powerflex - confirmed by the vendor after VIN check.
Thanks @kdcooke85 !
Those who don't know history are destined to repeat it!
sar77
Donor 2024
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Joined: 11 Dec 2024, 11:48
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Re: Eolys?

Unread post by sar77 »

Hi, hello everyone.
Citroen C4 Picasso BlueHdi 2.0 110 kW, VIN: VF7**************[VIN obfuscated, can be read by forum staff]. RPO 13952FV
(20 January 2015)
I want to check which additive is suitable for my car and whether it is a bag or a solid reservoir. If a bag, what capacity? OEM number? There is a lot of information, but it is very contradictory.
There are no warnings on the dashboard for a lack of additive yet, but when doing diagnostics at Citroen dealers for a SCR system failure, I also received a data sheet for the additive:
B2EB0 00 Additive reservoir empty fault
Status Intermittent
Volume of additive when new - 1.35 litres. Quantity of product in the vehicle when new.
Amount of additive in the additive tank – 324 ml. Quantity of product remaining in the flexible additive reservoir in ml.
Capacity of the additive pump – 131 ml.
Am I calculating and thinking correctly:
1) The additive pump can still deliver 131 ml of additive to the fuel tank.
2) My car uses about 1 ml of additive per 10 liters of fuel. (I refer to the OBDII diagnostic interface (elm.327) with EOBD-Fasile app data on the additive residue before and after filling the fuel tank).
3) My car's average fuel consumption is 5 liters/100 km, so the distance traveled with 1 ml of additive is -200 km.
4) With 131 ml of remaining additive, I can still drive 131x200=26200 km (fill in 1310 liters of fuel).
5) It can be said that this will be the first additive addition, because the car's mileage is 210,000 km, about 1026 ml of additive has been used, which approximately corresponds to 200 km/ 1 ml of additive.
Please forgive me and Google Translate.
Sarunas
Sarunas
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dpu
Posts: 1
Joined: 06 Aug 2025, 11:04

Re: Eolys?

Unread post by dpu »

Hi, we have a 2010 C4 GP MK1 that we are pretty sure has a tank.

The p filter additive low message is showing but we are getting expensive quotes to top it up.

We did try to look at it ourselves but don't have a lift or ramp and couldn't work out the connection to the tank and nothing I could find seemed specific to this car.

Any advice on finding somewhere reasonable to do this or how to do it ourselves would be appreciated.

Oh, we also don't have a diagbox/lexia so would need to get it reset anyway.
frer8833
Posts: 81
Joined: 30 Mar 2023, 00:10
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Re: Eolys?

Unread post by frer8833 »

frer8833 wrote: 23 May 2025, 02:33
Sorcerer wrote: 17 Jun 2021, 18:08 I ran the car on a motorway having filled the tank, for about 20 mins at a constant 90km/hr , the error is still coming on shortly after I start the car , and it jumps from A1 to M1 , so it looks like it's the pump /tank unfortunately . I dropped into the nearest Citroen main dealer , they said they couldn't check on the recall but they'd call me back later ....I'm still waiting :roll:
My car too, Citroen C4 II, B7, 2013, started to switch from A to M (automatic to manual) when starting car and accompanied by a beep and Engine Fault Repair Needed display text. RPM is limited to 3K. I think it is caused by the planned obsolescens error which is triggered by how many times you have fueled your car or opened the fuel cap, which is p1445 error code. It says DPF is old and need replacement even if DPF is good and it is ok in my case. It also turns off the eolys pump like a domino effect. Eolys level is also ok, no low eolys error code.

So I consider doing what the mechanic does in this video to get my car out of a lowkey version of limp mode.

These are the error codes triggered by "DPF-is-old-bogus-error": "P0EB0 Additive reservoire empty fault", "P1434 Multiplexed additive pump. Pump fault.", "P1445 Additive adding. The quantity of injected into the particle emission filter has exceeded the maximum threshold. The particulate emission filter must be changed.", "B1811 Fault on the diesel additive pump". P0EB0 is fake error, Eolys is not empty.

So with the right scanner I will look at the DPF-replacement teach-in, this tells the ECU that the DPF is replaced because if P1445 is already triggered it is too late to use DPF-reset to reset the 'P1445 timer', which tells the ECU that the ash-level counter is reset to 0%.

"Cars Programmed To Have Fault At Pre Set Mileage P1445 FAP/DPF Needs To Be Replaced. But Does it?" O'Riley's Autos
Ok FYI, I was able to turn back on the automatic gear shifting mode by doing a DPF (Replacement) Reset with the OBD2 scanner Ediag Mini from Kingbolen. I paid $19.99 in the app. There was no need to do DPF Replacement Teach-In which would've triggered probably a DPF Regeneration which I didn't want at the moment.

The Ediag Mini can reset DPF regen fluid additive status too but it says my car still has 1.04L left in the DPF regen tank so it is ok for now.

I added to 30L diesel in fuel tank 125ML of Mecarun ECO 10000 Diesel, which cleaned the DPF, EGR, injectors etc. No more DPF is dirty error beep or lamp. I did 125ML first, but after I added a few days later, without refuelling, 125ML more + 20ML of C99 the car woke up like a sprinter horse.
fivestars
Posts: 1
Joined: 23 Aug 2025, 19:20

Re: Eolys?

Unread post by fivestars »

Can anyone help with the Eolys type for my Citroen C3 Picasso 1.6 blue hdi 2016?

VF7**************[VIN obfuscated, can be read by forum staff]

Thanks
Berlingo Martin
Posts: 2
Joined: 26 Oct 2025, 12:41

Re: Eolys?

Unread post by Berlingo Martin »

frer8833 wrote: 09 Aug 2025, 22:23
frer8833 wrote: 23 May 2025, 02:33
Sorcerer wrote: 17 Jun 2021, 18:08 I ran the car on a motorway having filled the tank, for about 20 mins at a constant 90km/hr , the error is still coming on shortly after I start the car , and it jumps from A1 to M1 , so it looks like it's the pump /tank unfortunately . I dropped into the nearest Citroen main dealer , they said they couldn't check on the recall but they'd call me back later ....I'm still waiting :roll:
My car too, Citroen C4 II, B7, 2013, started to switch from A to M (automatic to manual) when starting car and accompanied by a beep and Engine Fault Repair Needed display text. RPM is limited to 3K. I think it is caused by the planned obsolescens error which is triggered by how many times you have fueled your car or opened the fuel cap, which is p1445 error code. It says DPF is old and need replacement even if DPF is good and it is ok in my case. It also turns off the eolys pump like a domino effect. Eolys level is also ok, no low eolys error code.

So I consider doing what the mechanic does in this video to get my car out of a lowkey version of limp mode.

These are the error codes triggered by "DPF-is-old-bogus-error": "P0EB0 Additive reservoire empty fault", "P1434 Multiplexed additive pump. Pump fault.", "P1445 Additive adding. The quantity of injected into the particle emission filter has exceeded the maximum threshold. The particulate emission filter must be changed.", "B1811 Fault on the diesel additive pump". P0EB0 is fake error, Eolys is not empty.

So with the right scanner I will look at the DPF-replacement teach-in, this tells the ECU that the DPF is replaced because if P1445 is already triggered it is too late to use DPF-reset to reset the 'P1445 timer', which tells the ECU that the ash-level counter is reset to 0%.

"Cars Programmed To Have Fault At Pre Set Mileage P1445 FAP/DPF Needs To Be Replaced. But Does it?" O'Riley's Autos
Ok FYI, I was able to turn back on the automatic gear shifting mode by doing a DPF (Replacement) Reset with the OBD2 scanner Ediag Mini from Kingbolen. I paid $19.99 in the app. There was no need to do DPF Replacement Teach-In which would've triggered probably a DPF Regeneration which I didn't want at the moment.

The Ediag Mini can reset DPF regen fluid additive status too but it says my car still has 1.04L left in the DPF regen tank so it is ok for now.

I added to 30L diesel in fuel tank 125ML of Mecarun ECO 10000 Diesel, which cleaned the DPF, EGR, injectors etc. No more DPF is dirty error beep or lamp. I did 125ML first, but after I added a few days later, without refuelling, 125ML more + 20ML of C99 the car woke up like a sprinter horse.
I have the same issues and have beed trying to reset with Diagbox 7.57, weirdly the renew dpf function is available for pugs but not Citroens in this version, does anyone know which version of Diag will reset the Citroen. I have searched for days to find an answer without success.

Alternatively I could buy the Ediag mini and 1 year licence, can you confirm what model it is?

Martin
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Mihael_M
Donor 2024
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Re: Eolys?

Unread post by Mihael_M »

If you already have Lexia, why would you go for other solutions that are not original. Since I don't know exactly which car you have, I would recommend you to try this diagbox.
It's free, the site is in Spanish, but it's easy to install, and then the language can be changed.

https://www.guiapsa.com/t2128-05-diagbo ... s-18-12-24
Berlingo Martin
Posts: 2
Joined: 26 Oct 2025, 12:41

Re: Eolys?

Unread post by Berlingo Martin »

Mihael_M wrote: 27 Oct 2025, 07:44 If you already have Lexia, why would you go for other solutions that are not original. Since I don't know exactly which car you have, I would recommend you to try this diagbox.
It's free, the site is in Spanish, but it's easy to install, and then the language can be changed.

https://www.guiapsa.com/t2128-05-diagbo ... s-18-12-24
Because I was getting desperate, I have been searching for a Diag solution but no-one seems to know the answer or doesn't want to share.

However, the good news is I have now replaced the DPF in Diag after updating to 7.58
kelvinc
Posts: 1
Joined: 24 Mar 2026, 01:15

Re: Eolys?

Unread post by kelvinc »

Hi all,

I have a 2017 Citroen C4 Grand Picasso (VIN: VF7**************[VIN obfuscated, can be read by forum staff]).

I’m getting DPF additive low faults (P1446 / P15B3), and I’m planning to refill the EOLYS fluid.

Could anyone please confirm which additive type this vehicle requires (Powerflex / Extend etc.)?

Just want to make sure I use the correct fluid before refilling.

Many thanks in advance 🙏
Nick_UK
(Donor 2025)
Posts: 12
Joined: 16 Mar 2025, 18:13
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Re: Eolys?

Unread post by Nick_UK »

Does anyone know how to get the system "primed" after the pump is removed/line is disconnected? And how much fluid goes in the line?
I have Diagbox but unable to get the "refill" repair action to complete - maybe it wants to connect to Citroen servers?
I have asked the question in more detail here:
viewtopic.php?t=89076
I can also ask the local repair shop to do it via Autel if anyone has experience with that working?
perfidus
Donor 2024
Posts: 91
Joined: 13 Jun 2024, 09:16
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Re: Eolys?

Unread post by perfidus »

Hi Nick, did you eliminate the problem?
In your place I should try with an older version of Diagbox (i have version 8 and works fine on my 2016 Citroen Relay (Jumper). It is also important to see if your pump module has the specific ECU inside the pump (that will need CAN bus connection and is often named multiplexed additive pump) or it is embedded in the engine ECU (ECM) - mine is the later type, it has only two wires for feeding the coil of the pump. The first type appears as a separate ECU when scanned with Diagbox.

edit: using the part number 9800323880 (from the other thread) I am pretty sure your pump is with separate ECU, has three wires and uses CAN bus to comunicate with the engine ECU. The additive is pumped into the fuel tank pipeline only if you add a certain amount of fuel into the diesel tank.
Those who don't know history are destined to repeat it!
Brianbartell
Posts: 1
Joined: 12 Jun 2026, 15:16

Re: Eolys?

Unread post by Brianbartell »

Hi my name is bri and I hope you can help me, I have had my Peugeot 508 SW GT 2.2 2014 plate since new and I have just gotten the DPF additive to low message.

I’m getting conflicting information, both factory dealerships are saying it needs Powerflex and they only stock powerflex as that’s all that’s used, yet parts direct says to use Extend, I don’t want the wrong one used as this 2 from what I have picked up cannot be mixed.

Vin: VF3**************[VIN obfuscated, can be read by forum staff]
DAM: 13736CJ

Thanks