Eolys Tank Filling C5(X7)

[nig1975]

​Hello everyone im really sorry if this has been repeated over and over, but my 2009 C5 2.0 HDI has had its DPF low fluid warning come on today, Id just like some advice from you guys on how easy it is to refill myself, I know you can buy the refill kits online and also know their could be several different kinds of additive which cant be mixed.

 

Im working on a bit of a budget as Christmas approaches so ​I would be so grateful if anyone can give me a step by step guide or some help and advice on how to perform this procedure and tell me how much fluid to put in the tank, I did have a look for the tank but couldn't see much underneath, im guessing that the low fluid warning will have to be reset by plugging into a LEXIA diag tool?  any help guys would be very much appreciated..

 

Many thanks Nigel

[paul.h]

The following is based on Citroens procedures and a complete fill needs 3 litres for the manual gearbox 2.0 hdi which lasts about 75k miles. The colour of the push button on the connector on the filling tube (1) on the side of the eolys tank tells you what type of additive is used.

 

ESSENTIAL : Observe the safety and cleanliness recommendations.

1. Recommended tools

Additive tank filling kit.

2. Refilling

CAUTION : This operation is to be carried out when replacing the additive tank or after checking the additive level.

ESSENTIAL : Respect the safety and cleanliness recommendations that are specific to high pressure diesel injection (HDi) engines.

ESSENTIAL : For all work on the additive circuit, wear safety goggles and hydrocarbon resistant gloves.

CAUTION : After switching off the ignition: wait 15 minutes before disconnecting the battery, to ensure that the initialisations of the various ECUs are memorised.

CAUTION : Keep the boot open - probably only needed if the battery is disconnected.

Disconnect the battery - not sure if this is needed.

Put the vehicle on a hoist (this is to give access under the car but other methods will suffice - jack and axle stands. Do not go under the vehicle without axle stands if you have hydractive suspension but this also applies to normal sprung suspension.)

 

Remove the left hand rear underbody protection.

Uncouple the tube (1) from the side of the eolys tank (the picture is not clear but the other end of the tube should still be connected on the tank).

Couple the additive container to the tube (1) using the adaptor and pipe (3 with tap and filler union) from the filling kit.

 

Screw on the filler union onto the additive container.

Place the additive container on some steps or similar so it is about the height of the door handle so the fluid will run out to the tank.

Open the valve located on the filler union.

Tilt the additive container to assist completion of filling.

Close the tap.

Remove :

• The filler union
• The pipe (3)

Connect the tube (1) back on the eolys tank.

Refit the underbody protection.

CAUTION : Perform the operations to be carried out following reconnection of the battery.

Reconnect the battery.

CAUTION : In the event of complete refilling of the additive tank, reset the diesel fuel additive ECU counter. If not done the low level message will continue to be given but fluid should still be dosed.

3. Recommendations for cleanliness

ESSENTIAL : The filling kit should be recycled after the repair. Any container of "Eolys" additive that has been opened should not be kept.

ESSENTIAL : The refilling kit, containers that have been opened and empty containers must in no circumstances be reused.

 

 

If I remember, I will later move this topic to the C5 section.

 

[nig1975]

thats great thank you for the info it only came on a couple of days ago, its done 91k just wondering if i need to fill it asap or will it wait until after christmas any thoughts?

Nigel

[paul.h]

I guess once the fluid runs out the dpf will block so you will get messages about that. You could just add 1 litre for now though and the rest later.

[nig1975]

yes i had the same thought thank you all for your help..