How to Refill PAT Eolys DPF Additive Tank Regen Fluid For Peugeot, Citroën, Ford, Volvo

[@garyburke301]

Tip for anyone that has a PSA engine with Eloys tank.The engine ECU injects the Eloys/PAT fluid into the diesel fuel tank every time u put diesel into ur fuel tank.It doesnt matter how much diesel u add it still pumps the same amount of Eloys into with the diesel.it knows ur adding diesel because the filler cap has magnets and the magnets engage a switch.So to make ur Eloys/PAT last longer run ur fuel tank to low and fill it up to the full.By only putting in 20-30 quid here and there u are injecting the Eloys fluid every time u remove the fuel tank filler cap. So its not goung to last as long. Thats the way the older Eloy/PAT systems worked anyway.not sure if its now different with the addition of the Ad Blue systems.

[@khalidacosta7133]

I believe that's only true on the oldest PSA cars, the ones which used DPX42. 176, Powerflex and onwards were duty cycled to how much fuel. However no system is perfect and it most likely overdoses, so empty > full will always use the least amount. Considering how much the stuff costs... it doesn't really matter anyway.

[@timbo19751975]

@@khalidacosta7133 These do indeed measure the fuel tank contents before and after the cap switch is triggered and inject the appropriate amount of Eolys into the tank, rather than a fixed amount as before..

[@scottgray6099]

I have a 62 plate C3 Picasso and that's exactly how mine operates. Brimming the tank each time makes the pouch last way longer.

[@MrSnowMen]

I never knew diesel engines were so complicated. Thanks for sharing

[@ORileysAutos]

Yes they are

[@abdulaiabdurahmani2913]

My friend has VW golf mk 2 is not complicated

[@-DC-]

They never used to be the Emission Requirements have over complicated them to the point they can't possibly be reliable long term.

[@mrtommyP80]

​@ORileysAutos do you have a video of a p2563 code related to the dpf and actuator ?

[@hughmarcus1]

It’s not the engines that are complicated it’s the bits they add to try & meet emissions standards

[@dmdaithim]

No need to remove the additive tank from the vehicle. Disconnect the flexi pipe and refill the fluid. Save yourself a load of time.

[@neil18201]

I have just refilled the additive tank on my Peugeot Partner. Removed the rear wheel to get to the the fill connector, as squeezing both sides of the clip didn't seem possible without slightly better access. Still slightly awkward but doable. Filled up without unbolting or unplugging anything else.and clipped the connection back on without any issues.

[@svenfigenschou7345]

You are right :)

[@pe2euk]

I removed mine to refill and I noticed a couple of clips not hooked on properly so I'm glad I did it your way, I. Hoping the car will realise I've filled it without any diagnostic, thank you

[@herrkiwi3110]

So there;s "AD Blue" and "Eolys" I haven't heard of this here in New Zealand before other than "Ad Blue" . I presume this is to meet Euro 6 standards. Thanks for another helpful video Jimmy.

[@-DC-]

Was introduced over 20 years ago so long pre dates Euro 6.

[@hughmarcus1]

Peugeot/Citroen have been fitting this since about 2003. It’s actually a fairly straightforward system, they just chose to make it complicated by not allowing the owner to top it up. 😬

[@abdulaiabdurahmani2913]

@@hughmarcus1 french disaster. No thanks.

[@kenlarman4252]

You need to get your designing head on Jimmy and patent a permanent filling tube adaption for this, this time next year we’ll be Millionaires 😂

[@martinsmith4943]

Another awesomely helpful video full of useful tips which make the job so much easier. You must have saved me so much time and thousands of pounds. Thanks so much.

[@ORileysAutos]

Great to hear!

[@TimmysFavs]

I found the amount of fluid used confusing. On the scan tool before adding additive the reading was 698ml approx and after filling it was 1198ml, indicating approx 500ml required to refill the tank but you indicated that you added 2, one litre bottles & some from a third bottle?

[@ORileysAutos]

Yes slightly confusing but that's the reset value? Like I said you can sometimes manually enter the amount of fluid

[@bobr9731]

I spotted that too it is what it is...

[@andrewyeo2353]

​@@bobr9731the autel does it lm auto repairs did a video today showing this being manually entered

[@Byzmax]

@@ORileysAutos It's a software glitch. Pretty much all aftermarket diag tools have this issue. It does not matter in this case because the car systems knows they tank capacity is 3 ltrs but the launch tool is reading it incorrectly. It's worth bearing this in mind when using non OEM diagnostic tools because this problem can come up in any area of the diagnostic software. The lesson is that once you have found what you think is a fault/problem, you need to find another way of confirming the fault through other methods especially when the replacement parts are expensive and or time consuming to fit. Great video as always

[@PayneDK]

Do I need to select and run the "Priming Of The Additive Adding Circuit" as well if the eolys tank has been completely emptied? I guess it would be a good idea? I have Diagbox 9.68 for my 2016 Berlingo Multispace BlueHDi Thank you for all your good and helpful videos

[@AdamDitheridge]

Yes. It primes for up to 12 minutes, clicking away, under the car....so leave the ignition on whilst it completes :)

[@patrickwatters7555]

Why do they make it so difficult.

[@AndrewStrydomBRP]

Probably to get you to the dealership. No reason for it to be this difficult.

[@SabretoothBarnacle]

#money 😢

[@hughmarcus1]

Sometimes a mfr puts a vehicle on the road with unnecessary complications. They think they’re being smart because it’ll generate work for the dealer. In practice they’re being stupid, because the vehicles quickly gain a reputation as having issues & their residual value drops like a stone.

[@nigelmitchell351]

It's probably added complication for UK market only, the bastards !

[@lesbrown5829]

I had a 2008 focus 2.0tdci, and it cost a fortune (£350/400 if i remember correct) to get "dpf" fluid topped up at a ford dealer. Is this the same stuff?

[@hughmarcus1]

Basically yes, the engines are produced at a plant which is a joint venture between Ford & the PSA Group so they all use the same system

[@abdulaiabdurahmani2913]

the car needs maintenance

[@khalidacosta7133]

Yep, Eolys 176, genuine pug 3 litre refill kit is about £120. Reprogramming takes about 15 minutes and can be done WHILE refilling, which takes about 20-30 minutes. Rip off these dealers.

[@abdulaiabdurahmani2913]

@@khalidacosta7133 if you can't afford to drive a car WALK !

[@andrewyeo2353]

How does the computer give the level of fluid in tank is it a calculation or some sort of sensor?? Just curious as i know someone who had a dreaded forced regen on a volvo s40 and the additive tank is showing full on live data but i know the fluid hasnt been refilled . Believe this to be reason dpf is clogging

[@enij7723]

There should be a ultrasonic sensor in it which also could go bad.

[@andrewyeo2353]

@@enij7723 thanks for the info 👍 crazy amount of money for a new tank

[@khalidacosta7133]

Calculated. Happened to my car actually. DPF struggles to regen. Previous owner must have only used 2 litres instead of 3 (as seen in video, diag tool doesn't let you select amount). Refilled and engine runs better than ever now.

[@timbo19751975]

There is indeed an ultrasonic sensor in the tank that measures the level on this system. Previously where a fixed amount was injected each time, the ECU just guesstimated it.

[@andrewyeo2353]

@@timbo19751975 thanks for the info I'm guessing this must be faulty then .

[@bobr9731]

Eloys / Pat Fluid on French cars, Adblue / Urea on others. What the differences? I think the adblue are taking piss LOL 😂 Another great video.

[@ORileysAutos]

This has both. Pat fluid helps with dpf soot particulate regeneration & adblue reduces nox emissions gases

[@abdulaiabdurahmani2913]

Peugeot diesel have 2 fluids - one is Eolys and another is Adblue. You have to fill them both.

[@ClassicTrialsChannel]

​@@abdulaiabdurahmani2913I had my Adblue mapped out. Got tired of the crap system on the ds4

[@abdulaiabdurahmani2913]

@@ClassicTrialsChannel I drive Benz E300 cdi. No adblue. Last model without adblue. 2014 ! Currently 18200Km on the odometer. I don't drive it frequently. On the job i have sprinters 2014-2019 V6 CDI amazing engines. We had peugeot partners but we have sold them after 50000Km. No problems with Peugeot at all. All stock no adblue.Inshallah

[@willdatsun]

@@abdulaiabdurahmani2913 not many have both

[@libran3051]

Really helpful video, got my van sorted now. !!!

[@ftsetradersteve2742]

So what tools apart from ones costing thousand will allow you to tell your car that the Eolys tank has been refilled?....

[@AdamDitheridge]

A Kingbolen K10 does it.....

[@muratuman7408]

It's a highly carcinogenic substance, please use gloves next time😢

[@googies12a]

Horrendously complicated process for filling a consumable fluid.

[@TimmysFavs]

Yes, I couldn't agree more. Wouldn't it be more user/owner friendly to have a system similar to the adblue system?

[@ORileysAutos]

Also expensive

[@ClassicTrialsChannel]

​@@ORileysAutosyes, it cost where I bought my car £90

[@abdulaiabdurahmani2913]

@@ORileysAutos and also that fluid is A HUGE HEALTH hazard - causes cancer and that is the reason why it is not allowed user to top it

[@scottgray6099]

@@abdulaiabdurahmani2913 but it's perfectly ok for poor old guys like Jimmy having to do it all the time. Makes no sense really. Just design it so that it has a flexi filler tube that can't leak or something. I dunno I'm not a designer :D

[@THE_ONE_86]

Would this running low cause limp mode or bad running?

[@AdamDitheridge]

Yes

[@VeniVidiVici444]

I used Autocom to reset the DPF additive level, and the value changed from "No" to "Yes" for a full tank. However, when I start the car, the fault code P1932, which warns about a low additive level, still remains, even though Autocom indicates the tank is full and I have refilled it. Does it require VIDA to reset this correctly?

[@ORileysAutos]

I use Launch euro tab 3

[@VeniVidiVici444]

@@ORileysAutos Thanks, but why do you think that the code comes back?

[@dragonofyorha]

Is this fluid in the euro6 / adblue variants too? I had no idea this existed

[@hadiamrane]

There is video (you can look it up yourselves on his channel) where he is showing a citroen c4 grand picasso from 2015(?) that uses both systems and he is topping them both up. So yes, it's also for EURO 6 systems. Don't actually know why as other manufactures don't have a eloys thank, only adblue. Typical French, always complicating things 😅.

[@proksalevente]

@@hadiamrane It's to reduce dpf regen temps from 600c to 450c, thus the dpf has a longer useful lifespan, because it does not have to withstand as much heat each regeneration cycle.

[@hadiamrane]

@@proksalevente Yeah, now that you say it, I completely forgot that our citroen does regen even when in the city, after not driving on the highway for a long period of time. It is quite smelly and irritating for people behind me. You also can feel the engine is working a bit harder as the sounds changes, higher RPM when standing at a red light and also the steering wheel shakes a bit more. Really good system though. Other cars just flash up the engine light to get it cleaned because they don't regen at lower temps.

[@omartroncoso7094]

all 1.6hdi engines take the same amount of eolys? im from chile and people arround here generally just add 1liter lol

[@jackedwards4179]

I had exactly the same experience. Visited two different garages, one using snap-on, the other using Autel. Both were unable to reset the additive tank. In the end a local diagbox user cleared the codes for me. Can you recommend an affordable diagnostic tool (possibly less than £500) for a DIY enthusiast to be able to reset the additive tank and associated codes at home as shown in this video please?

[@user-xp1cw3ix5g]

Hi, same problem. What diag. I can reset that :-) thank you very much🙂

[@ORileysAutos]

CRP129 EVO can I'm sure

[@jackedwards4179]

@@ORileysAutos thanks, much appreciated

[@alexmorgan3435]

Hi, good video. I have a Peugeot partner 1.6HDi 2015 plate. It has done 42k miles. Today I saw a small but substantial pool of reddish brown oil beneath this plastic box located on the underside of the floor just inside the side sill, behind rear sliding offside drivers side door. It was dripping quite a lot. It must have let out something like 500ml already, but there isn't an engine management warning light displayed on the dash board. Has some thing broken or a pipe cracked for it to leak or is something blocked inside and forcing the oil out causing it to leak? I haven't looked at it yet as I did not know what it is. Figured out what it could be by a process of elimination. I have a fairly good Citroen dealer near me in St. Ives. What are they likely to charge to fix what ever is wrong and replace the fluid and recalibrate? How much would you charge to sort it for me? I could drive down to Bedford way providing the car makes it. I have driven it about 90 miles driving at 70-80mph for most of this since the leaking started this morning with no apparent ill effects, yet. Could I like you do it myself although I don't have an error code reader like yours to recalibrate which looks like one a dealer would have. I have a very very basic £30 hand held one the size of a small calculator which I don't think would be any good. Advice needed. Many thanks.

[@makanakamaenzanise3602]

Hello there. Have got a solution please, I have a similar problem and it happened almost as you described yours, except that this small tank on my Peugeot 5008 , 2014 is almost 30 centimetres from the rear wheel. It leaked over night and i realised that i must have run over some rocky surface. And, no Error has shown on the screen, and I have no idea what this brown-red oil/liquid is, or what it does.

[@alexmorgan3435]

@@makanakamaenzanise3602 It is the FAP Eloyse oil reservoir for emissions Euro 6 vehicles. A small amount of this oil is injected into the diesel fuel every time you time you fill up with diesel. I too reckon something must have hit this tank as I was driving as one of the plastic mouldings is cracked probably from impact. So I had to replace it and the oil which cost me £235 in total. I bought a genuine Peugeot new tank and replacement oil from Ebay. Peugeot dealer wanted £670 to replace the tank and refill with oil. A diagnostic to read and clear the error code which subsequently appeared on the dash would be an additional £140. I still have an error code stating engine fault have the vehicle repaired on my dashboard but I buy a code reader for about £300, recallibrate the FAP reservoir as full, then erase the error code.

[@hadiamrane]

I can't speak about the leakage, but what I can say is that a ECU has been programmed to only show a message on the dash after it triggers because of some parameters. If those parameters hasn't hit, the ECU doesn't see any issue. About the ELOYS tank: what the ECU only knows (and has been programmed to say) is what (calculated) amount has been sprayed in the DPF, how much (calculated) amount is still left in the Tank and if it is empty (because when it tries to spray, nothing comes out, it "feels" this). That's it. When you loose a certain amount because of a leak, these systems don't know that. They only will trigger, if after some time you keep on driving like this, when the tank if completely empty as it tries to spray, but nothing comes out, then you get a warning. Then just add some fluid, reset it and keep on driving, nothing wrong. You will only irritate other people as there is still a leakage ;-)

[@alexmorgan3435]

@@hadiamrane All fixed and fine now. Thank you for your comment.

[@glinlivir]

excellent video. are you using diagbox?

[@dragonofyorha]

Doesnt look like Diagbox, must be icarsoft or sum

[@MADTASS]

Tried this, but I couldn't get it to Release from the Lugs, thought i'd try and Fill it while it was still Fitted, that didn't work, Glad it Didn't because I Found a Much Easier way to do this, the 4 White Spring Loaded Screws holding the Casing, just release them and that Splits the Outer Casing, A Lot Easier than Faffing Around, When I did Split the Casing I found that the Bag was in Bits and Pieces and Obviously Empty so I'm Glad that I didn't Fill it in Place or Get it to Drop from the Lugs otherwise I would have Wasted a Litre of Fluid. Going to Order a Bag Online on Monday, Pity you can't Just Order Empty Bags.

[@s_pickle]

I took the back wheel off, you can then reach the filling hose (fairly) easily. The presence of the filling hose suggests to me that it's designed to be done in-situ.

[@danthelambboy]

From what I hear the car only has a count down to bring up warning only after a certain mileage is reached rather than a fluid level sensor, if it were the latter you might have known beforehand. I am confused that some people say these have bags and some say tanks. So is yours considered a tank or a bag? I see bags are sold with a litre capacity, I assume that is a bag to refill a tank/bag?

[@danthelambboy]

​@@s_picklewhat year and model do you have? Could save me some time

[@s_pickle]

@@danthelambboy Mine is a 2013 Berlingo van. IIRC it's a B9 variant.

[@adamlittle4267]

Wow why so difficult... my vw caddy is easy open bonnet and fill the dpf fluid like the washer tank

[@ORileysAutos]

That's Adblue

[@scottgray6099]

I hope you've not been putting dpf fluid in there :D

[@LegendOfMonkey]

First time I've heard of it....what an utter headache! I know it's not a big deal for a tech but for the everyday driver it's a nightmare!

[@stevetaylor2445]

Even though this is going to sound critical,I don't ask in that intention- is it a European thing to call nuts,bolts? I had this same question years ago with bodgit and legit who I have little respect for after his reply.

[@jonnoMoto]

I'm from the uk and what he calls bolts I call nuts.

[@googies12a]

I'm from Ireland as is Jimmy and I'd say it's more interchangeable terms and everyone knows what you're talking about.

[@stevetaylor2445]

@@googies12a I would argue that they are not interchangeable since they are distinctly different items,but if you are taught differently it explains things

[@ORileysAutos]

Bad habits

[@bryanlatimer-davies1222]

Sloppy language, that's all

[@hamzaraghay6259]

👍🙏

[@pierreolsson588]

Why is it like this?! The owners can fill up adblue, but this?! Wtf!