407 Hdi 2.7 DPF tank and Eolys union plug

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407 Hdi 2.7 DPF tank and Eolys union plug

Post by 407 »

I finally got under the car to check where the DPF fluid tank was

I assume this means I have a white union plus and so need DPX42 ? (Vin supplied before)

Do anyone recommend / used either the JLM or Shultz "alternatives" which seem cheap at the price.

( I did ask insuppa (they sell Shultz) and they said it was fine for my VIN)
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JLM DPF fluid
JLM DPF fluid
JLM.jpg (9.48 KiB) Viewed 148 times
Shultz DPF fluid
Shultz DPF fluid
shultz.jpg (20.91 KiB) Viewed 148 times
under the car DPF tank
under the car DPF tank
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GiveMeABreak
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by GiveMeABreak »

No that's not correct - your build date is 10896, so needs Eolys 176, not the earlier DPX42 (so do not put this in your tank)!

Eolys 176 was replaced with Infineum F7995 when the old Eolys 176 stocks ran out. So you can use Infinueum F7995.
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by 407 »

Thanks Marc

Is this plug in the pic the correct union plug (and refill port) ? Looks white to me (or maybe a faded yellow)

According to the Walkers chart etc its supposed to be green ?

cheers
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by GiveMeABreak »

The colours of the click fit unions change - that's why it's important to go on the build date. In your vehicle's case it can be green or white.
407 additive Tank.PNG
(1) Additive reservoir filler pipe.
(2) Additive reservoir heat shield.
(3) Additive reservoir.
(4) Fuel tank.
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by wheeler »

407 wrote:
13 Dec 2021, 20:29
Thanks Marc

Is this plug in the pic the correct union plug (and refill port) ? Looks white to me (or maybe a faded yellow)

According to the Walkers chart etc its supposed to be green ?

cheers
Eolys 176 fittings can be Green or White but as said this is only a guide & the only way to confirm is by build date.
GiveMeABreak wrote:
13 Dec 2021, 17:06
No that's not correct - your build date is 10896, so needs Eolys 176, not the earlier DPX42 (so do not put this in your tank)!

Eolys 176 was replaced with Infineum F7995 when the old Eolys 176 stocks ran out. So you can use Infinueum F7995.
Eolys 176 is still available??

Was it not Eolys Extend that replaced Infinueum F7995 as this is now obsolete?
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by GiveMeABreak »

For the 407 for build date 9492 to 12075 it still showing as Eolys 176 (or Infineum F7995) but only changes to 'Extend' for the 407 from build 12076.

So I'm just putting this up as it is still listed in 2021- but if it has changed, no doubt the dealer will substitute it.
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by 407 »

So the 2.7 HDI has decided to thrown up some "Risk of Particulate filter blocking" warnings which came and went but now has DPF blocked warning and a P1447 error

I admit I have not taken it for the mandatory non stop 20 mins spin at over 70 kph to regenerate the DPF.

The car is running fine, albeit I can now see some black smoke in the rear vision when I take off.

On the basis that its done 145K Kms, I assumed the DPF tank might be empty so unbolted the cover, fitted the Eolys refill bottle and hose and found that it was full (eg would not take any liquid out of the bottle and started to fill up the filler tube)

Pic of what come out, which went yellow in my white container so assume urea.

I went on Diag and it says no recent regenerating, plus impossible to regenerate DPF, which does not sound good.

I tried the force regeneration (stationary mode ) but it gave up after about a minute into the 7 minutes at 4000 rpm session.

As an aside, I also had a rear air flowmeter 1 error come up P0104 and a P010F (imbalance between the airflow meters - 1 is reading 4 and 2 is reading 148 kg/h), which happened a few weeks ago so I cleaned the sensor and it went away.

A few questions

a) Would Eolys fluid coming back up the refill pipe confirm the tank is full - any other way to check (other than removing it and emptying it :) ?

b) I understood there is a pump which injects the Eolys fluid into the diesel line when the ECU says to regenerate - where is this pump and is there a way to check if it is working (eg via Diag actuators ? ?

c) I assume I can swap the airflow meters and see if the P0104 error follows the airflow meter - do they just pull out ?

d) Global test says "Diesel additive" ECU not present - is that an issue or for a different car ?

e) how easy is it to dismantle the DPF to clean it ? any pics ?
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Eolys overflow
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by GiveMeABreak »

Well the first thing I can tell you from that picture is that it is not Eolys. Eolys is generally a blackish-brown colour and never clear.

UREA is only for later vehicles with a Selective Catalytic Reduction system fitted (SCR) and that has a separate UREA tank and this system was not fitted onto PSA vehicles until about 7-8 years later than your vehicle (usually but not always having the Blue HDi in the name).

1) So if this clear liquid is what has come out, you need to completely remove and drain the tank to get rid of whatever this liquid is and hope it has not damaged the pump.
2) If the tank is full of whatever gubbins is in there, then it has not (thankfully been injecting it in to you fuel tank.
3) The DPF system on your vehicle is showing up as having a separate additive ECU. On later vehicles the engine ECU controls the multiplexed additive pump and therefore the dosing. On earlier systems, such as yours, there is a separate ECU to do the job, however it is well known that these boxes often failed and could not be reset which is required after the additive system has been topped up. The additive tank is not physically measured for additive quantity. It is estimated from the amount added at the factory and if it has subsequently been topped up, which is where the resetting of the additive ECU comes in.
4) If the additive ECU has packed up it won't command the pump to operate (and thankfully in your case as you don't want whatever that liquid is getting into the fuel system.

So several things to do. In either case, the additive tank needs removing and emptying and cleaning and hope the pump is not goosed. Then the additive ECU needs checking for operation (but not while the Eolys tank is full of that clear liquid). If as you say the global test is not communicating with the additive ECU, then it is likely goosed and probably needs replacing.

The additive tank is (15)
The additive pump is built into the additive tank and metered doses enter the fuel tank via the pipe (16).
The additive ECU is shown as item (20).
407 Additive.JPG
My last question is what did you attempt to fill the additive tank with? Do you have the correct additive fluid for your engine / build date? For the vehicle age and build date (10896), the additive is EOLYS 176, which was replaced with Infineum F7995 (which are the only 2 that can be mixed) or the later equivalent advised by your dealer.
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by 407 »

Thanks Marc

sorry I asked :) I've read some put diesel back in but its not diesel

re fluid - I bought a bottle of the Insuppa Eolys for Peugeot which is a black brown colour - not anything like the clear one that came out.

Can I get some parts number for 73 (20 and 25)

Can you buy the dosing pump separately or only as part of 15 ?

regards
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by GiveMeABreak »

Ok,
407 Additive.JPG
The additive reservoir contains the pump (15) but is no longer available from Peugeot, but the part number was: 1500Z9 and was priced when available at £452.27

The additive ECU (20) is part: 1525CY, £208.61
The ECU harness / bracket (25) is part 153945, £6.46
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by GiveMeABreak »

Just one other thing, I've noticed previously that some vehicles may not have the additional separate ECU even when shown on replacement parts. Sometimes they transfer operation direct to the engine ECU, but unfortunately I can't tell you even with the VIN.

Anyway, I've looked on the wiring diagrams and it would indicate the additive pump being controlled by the engine ECU, so you may not have the additive ECU separately after all.

The Engine ECU has a control wire on Pin K1 of the 48 Pin Black engine ECU connector that goes to the additive pump in the additive tank on Pin 4.
Pin 3 of the connector on the additive tank goes to the engine fusebox (also Pin 3 of the 28 pin grey connector).

Additive Pump (1286) & Engine Fuse Box (PSF1)
Image

Additive Pump
Image

Engine Fusebox Grey Connector (48V GR)

Image
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by 407 »

Thanks Marc

So looks like constant 12 volts to the pump (pin 3) and triggered by a negative signal (pull down) from the ECU.

So if I connect pin 4 to negative, the pump should start (once I drain whatever is now in the tank)

Time for spanners
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by GiveMeABreak »

Just don't dry-run it for too long when testing and wear some protective gloves as Eolys is not what you want on your skin or anything else for that matter, as you don't know what is in there :)
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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by 407 »

Marc

is there a test option via Diag to turn the pump on (eg to test if the ECU line 1285 works ) ?

I assume pin 4 it would be pulled high to say 12 volts and and when the ECU decides it needs a squirt of Eolys, it pulls it to ground and runs the pump.

Any data on how long the pump runs ? ( just in case I need to bypass the ECU)

I assume the ecu programmed theory of the DPF clean is

a) get the engine to running temp
b) squirt some Eolys in to the fuel lines
c) run the car at over 70 kph for 20 mins to let the Eolys do its work at high temp

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Re: 407 Hdi 2.7 DPF tank and Eolys union plug

Post by RichardW »

Eoyls is injected direct into the fuel tank - the pump runs after the fuel tank is filled. The Eoyls lowers the combustion temp of the soot in the DPF making it easier to regen, I don't know if an active regen will work with no Eoyls; although it looks like you have the wrong stuff in the tank, so it might have been like that a while, and regenning. Looking at the diagram, the pump should run if you earth pin 4. The high speed run is a bit of a myth, all 4 of my DPF'd 1.6s have regenned the filter in normal driving no problem - Mk1 C4 Picasso, you could see the HRW come on sometimes; 307 ran slightly rough, so I could tell; my current 3008 I've caught the fan running after switch off; Mk2 Blue HDi never seen a sign, but its done 40k, so it must be doing it!

P1447 appears to be a differential pressure fault - what does Lexia say the diff pressure is with the engine off, started at idle, and with the revs raised to 3000 rpm?