Eolys?

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GiveMeABreak
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Re: Eolys?

Post by GiveMeABreak » 13 Dec 2018, 15:18

Ok, so Powerflex as you said for your build date.

The tank is located under the rear left hand side as in this photo
Eolys Tank A.PNG
Remove the protector under the body .
Uncouple the pipe (1) (at "a").
You will need to gravity fill the reservoir from the filler kit and then you must reset the additive counter using a Lexia diagnostic tool with Diagbox. This is so the computer knows the tank has been refilled as it is an estimate and calculated figure, not a measured figure. The warning will not go without doing this and will go into limp mode before long.

If you don't have access to a laptop nd the diagnostic hardware, it will be cheaper to take it to a dealer for a refill as they are pretty used to doing it.

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Re: Eolys?

Post by Cosmin G » 13 Dec 2018, 18:05

Thank you very much for your reply! I do have an acquaintance who has a Lexia diag tool but the said person cannot help me with elevating the car due to some problems, so right now I trying to find someone in my area who can provide me with some spare tools and a lift so I can do the job.
One more question though, right now I have an order placed for a Powerflex kit. How many miles can I go with the car without something bad happening to the systems or going into limp mode?

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Re: Eolys?

Post by GiveMeABreak » 13 Dec 2018, 19:42

If you have hydractive suspension, you can raise the car up and support it with a jack or axle stand and gravity feed the kit into the tank. No need for a post lift, as gravity will do the job. If you have metal suspension the same applies, just raise the car at the rear and support that corner safely so that you can get to it.

As for mileage remaining:

The diagnostic tool interrogates the engine ECU on the following parameters :
  • The quantity of additive deposited in the particle filter
  • The quantity of additive remaining in the additive reservoir
The diagnostic tool (Lexia/ Diagbox) compares these values with the additive consumption stored in memory, the vehicle mileage and the distance remaining before the next servicing interval.
If the quantity of additive is estimated as sufficient, refilling of additive does not need to be done; the diagnostic tool indicates: "Account taken of the vehicle history, it is not necessary to top up the level of additive in the reservoir. Check the level of additive again at the next servicing interval".

If the quantity of additive is estimated as insufficient, refilling of additive is requested; the diagnostic tool indicates: "Taking account of the vehicle’s history, it is necessary to top up the level of additive in the reservoir".

So it depends on when the next scheduled service is as to if it determines there is enough additive to last until it would normally be checked, If not, the warning comes on at the dash, - so look at your miles remaining until next service. If is said you had 500 KMs remaining until your next service - it means the engine ECU has calculated there isn't enough additive remaining to cover you. If you had say 2000 KMs remaining until service it would mean you are probably likely to be able to go for a few more miles before limp mode kicks in than with 500 KMs remaining. It's not an exact science, but I would get it done sooner rather than later.

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Re: Eolys?

Post by Cosmin G » 13 Dec 2018, 22:45

Thank you for all the information, this helps me a lot since I'm an "average joe" when dealing with this stuff! :-D

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Re: Eolys?

Post by mmatin » 29 Apr 2019, 12:04

I'm a bit confused about eolys for my C5 x7 12/2010. RPO is 12280 which suggest I need Powerflex, but click fit color is green which suggest I need Infineum F7995. Also I got offer from Citroen dealer for Powerflex.

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Re: Eolys?

Post by GiveMeABreak » 29 Apr 2019, 14:00

Your build date was 23rd June 2010 for that RPO. This is another reason why there is a visual check using the click fit unions to make sure, as there can be models produced that were using the old stock near to the changeover period. Also the RPO is a guide - but must be used in conjunction with the colour of the click fit. So DON'T fill with Powerflex as they can't be mixed!

So If you have a green click fit then it will be Infineum F7995. Your dealer should confirm this, but don't be afraid to question them on this stating that you have the green click fit connector - they should know they cannot mix Powerflex with the Green Eolys 176 or F7995 Infineum.

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Re: Eolys?

Post by detheridge » 07 Jun 2019, 16:46

Hi folks,
My '07 C5 auto 2.2VTX+ has finally gone as it was generally getting more and more rough and clunky and the gearbox was starting to leak. I was relieved to see it go.
Its replacement (via Ebay) is a just about mint condition 2003 2.2 Exclusive with only 83k on the clock and full history. It's a dream to drive compared to the VTX. - smooth and tight and everything works perfectly. One small niggle - the 'additive too low' warning comes up occasionally despite the garage service record that it's been filled up and registered on the ECU. I have the full documentation to prove it. The seller said that the (Cit specialist garage ) mech stated that it's a problem with the sensor. Supposedly that can play up and try to tell you that the level is low when it isn't.
Is this a relatively easy fix, or more trouble than it's worth? I can live with ignoring the warning signs if I have to! :-)
Thanks in advance,
David.

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Re: Eolys?

Post by GiveMeABreak » 07 Jun 2019, 18:00

It's a known fact that earlier vehicles had issues with the additive ECU when it came to reset the counter - often it would not reset - and required the actual ECU to be replaced. I suspect that is why you are still getting the warning despite the level being topped up. It is likely that if you don't resolve the issue (likely replacement of the ECU), then at some point it will throw a wobbly and put the engine into backup reduced power mode as you eat into the mileage that it allows you before doing so.

The additive quantity in the tank is not physically measured - it is estimated based on the fuel added and the distance travelled and the amount of additive injected into the tank. You may be ok with it for now - but within a 1000 mile tops I would suggest that it will enter a backup mode. If you pop your VIN up I'll see which system you have.

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Re: Eolys?

Post by detheridge » 08 Jun 2019, 08:35

Hi Marc,
thanks for the reply. Upon looking at the service history, the additive tank was filled and the ECU reset at 70k, and the car's only done 13k since then. Do ECUs fail between specified mileage intervals, or would another reset help?

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Re: Eolys?

Post by Hell Razor5543 » 08 Jun 2019, 08:41

Any part on any car can fail unexpected, but the better built (and maintained) it is, the longer it should last.

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Re: Eolys?

Post by GiveMeABreak » 08 Jun 2019, 10:21

detheridge wrote:
08 Jun 2019, 08:35
Hi Marc,
thanks for the reply. Upon looking at the service history, the additive tank was filled and the ECU reset at 70k, and the car's only done 13k since then. Do ECUs fail between specified mileage intervals, or would another reset help?


It's not that the additive hasn't been filled and the counter reset - it's that this particular ECU is well known to dealers in that it will very often not reset - resulting in the additive level low warning. That is why a lot of dealers changed this module as the same time the additive was refilled.

They are located in different locations, and I'm not 100% sure where it is located - the picture below shows the Additive ECU (1282) in Diagram 'G' and where 'G' is located on the car in the larger diagram - so hard to see if this is in the passenger floor well somewhere or not!. It is part number 1525AZ - but again to be 100% sure I need you VIN for this MK I 2.2 C5. The picture is for recognition purposes only - there are several types.

Important: Prior to replacing the Additive ECU with another one, it is important to note the existing values of:

- Quantity of additive deposited in the pollutant particle filter
- Quantity of additive deposited in the particle filter since the last filling
- Type of Additive Fluid (DPX42 or Eolys 176)

You will need access to Lexia ideally in order to configure the new ECU - or if you don't have the old values, then default limits need to be programmed in according to mileage (I have these if needed)

Additive ECU
Additive ECU.PNG
Location (suppposedly) of the Additive ECU (1282)
Additive ECU B.PNG

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Re: Eolys?

Post by detheridge » 09 Jun 2019, 14:50

Is there a way of testing the additive ECU on a Lexia to reveal problems?

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Re: Eolys?

Post by GiveMeABreak » 09 Jun 2019, 15:34

Only the "actuating the additive pump" audible test to see if the pump is activated when using Lexia. Other tests then involve measuring pressure / vacuum with a tool to indicate whether there is a blockage or not.

However, just re-reading your first post on this - there is NO sensor for the level as they are not measured. The additive pump is equipped with a level sensor but it is not used. From build date November 2002 this was discontinued. I don't have your VIN for this model so will need this to check your RPO.

It's a good bet to say it's the additive ECU - just about all the ones I've heard from the MK I C5s had to have their ECU replaced because they would not reset properly.

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Re: Eolys?

Post by detheridge » 10 Jun 2019, 12:33

Hi Marc,
update - my RP in the car is 9559 if that helps. I've just been to my local garage and they've diagnosed it as a faulty additive pump, so it's booked in for a replacement and a top up of Eolys if needed. Supposedly the ECU came with a clean bill of health - perhaps it's already been replaced in the past?

Best wishes,
David.

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Re: Eolys?

Post by GiveMeABreak » 10 Jun 2019, 14:16

Good luck and make sure that they are sure - as if it is the ECU you will have replaced the additive pump for nought. The only way to test the pump for correct pressure is to use this test
EthA.PNG
EthA.PNG (45.19 KiB) Viewed 168 times
Eth B.PNG
Ethe C.PNG
[ 1] union for venting fuel pressure 4215-T (diameter 10 mm).[ 2] Pressure take-off extension 4251-T.[ 3] Pressure gauge for controlling the pressure 4073-T.A (kit 4073-T).

Place the vehicle on a 4-post lift.
Remove the heat shield located under the diesel additive reservoir.
Eth D.PNG
Eth E.PNG
Fit the tool [ 1] as an adaptor in the additive pump pressure circuit.
Connect the tool [ 2]to the tool [1].
Place the pressure gauge [ 3] inside the vehicle.
Connect the tool [ 2]to the tool [3].
CAUTION: As soon as the ignition is switched on, the additive pump is supplied for 5 seconds.

Switch on the ignition , Check the pressure indicated by the pressure gauge [3].
The correct pressure should be 3 ± 0,5 bar.
Remove tools [ 1], [2] and [3].