Antipollution Problems C5

[bob c5]

I have a antipollution legend on dash indication,with antipollution problem on the green display.

The particulate filter was replaced but problem has re-occured.

Any one who has had similar problems and has a known answer please reply.

[Amelie]

If it is petrol, there could be a bunch of reasons, so I'm told. In general, the computer is having a hard time creating good combustion conditions and therefore the exhaust gases are far from optimal. That's why it could be anything.

 

One possible solution that's quick to try is a tank of 98 octane or higher. It erased that warning after 3/4 of a tank for me. 95RON might not be enough, despite what the sticker says.

 

The other general point is that the warnings tend to be early and well before anything bad happens. Which is nice, but it can be unsettling. You are probably getting a warning well before a similar car would bother to tell you something's wrong. Note: When the "Fuel Level Low" warning appears, you DON'T have a few weeks to do somthing about it. :D

 

If your car is diesel (and the particulate filter probably means that it is) I have no idea. But the general point about the causes stands.

[YaH]

hi bobc5

This antipolution warning on a diesel refers to a small tank of very expensive Eoly fluid that is beside the fuel tank. Apparently it should be replenished at certain service intervals.

The story goes that when your particulate filter fills up with soot this fluid plays a big part in removing the soot, something to do with tempretures. If you do not get this fluid refilled then you particulate filter will 'burn out' and need replacing.

I know all about this as I have just had mine topped up £50 ish while it was in for it's 100,000 service. However, my warning message has not yet gone out - the agent said it takes a few miles, I will be contacting them again as I have done 600 miles and on its secound tank full. watch this space!!!

 

ps - to make you feel beter - fords have this stuff aswell!!!

 

8 citroens from passing my test and still luv em!!!!!

 

see this link for further info on what it does (oh and other stuff)

 

www.psa-peugeot-citroen.com/en/psa_group/technological_files_b3.php

[gespo2002]

< I HAVE JUST HAD THIS SIGN COME ON AFTER I RAN OUT OF DIESEL(COMPUTER SAID 50MILES LEFT AND WARNING OF LOW FUEL LEVEL HAD NOT LONG BEEN ON) . I HAD THE PARTICULATE FILTER CHANGED LESS THAN 1500MLS AGO AT THE DEALERSHIP C5 HAS ONLY DONE 77000MLS AND WARNINGS SEEM TO APPEAR AND DISSAPPEAR ALL THE TIME.

[cloughie]

I am going through the same or similar problem now. On my 2001 2.2 HDI the message is Fuel Additive Low.

 

Paid £70 to Thomson First at Stroud to be told I need to change the partial filter at £350 even though this had already been changed by them.

 

After much complaining I got them to call the technical department who recon there is a design fault with the ECU which makes the car think the filter has done more miles than it really has. This is because the ECU will not reset.

 

It goes back in for another look on Monday. I am telling them that I am not willing to pay for a design fault even if it is out of guarantee.

 

The dealer thinks it will be hard to find the fault. I can not see why they cannot simply check the serial number on the ECU against the ones they know are faulty.

 

By the way, the diagnostic computer at the dealers says that the fuel additive is not low; the service manager told me that the car is only reporting that as it can not tell me that the filter is nearly blocked. (what rubbish) I asked if the filter is nearly blocked why is the car running perfectly? This was 2000 miles ago, I still get the message and the car is still going well.

 

So far they want me to pay for:

 

Diagnostic check 1 £70

Diagnostic check 2 undetermined though Citron have offered to make a contribution

Particle filter £350

ECU £400

 

Therefore in excess of £800 to turn a false warning off which may not even do the trick

[fiatman]

With my message I checked the additive tank and it was completely empty, I put in 2 litres which I know is not enough to fill it but it will do for now and the message is still on. After talking to the main dealer mechanic he told me it has to be reset via the diagnostic tool. As the car is new to us and only has one key I will wait until I have a new key (ebay) and have them reset the service light/fuel additive warning and marry in the new key. Its not hard to check the additive level, I sent photos to one of the moderators who will hopefully post for use of others.

[cloughie]

To update my earlier reply in this posting, (Cloughie). I pestered Citroen UK who agreed to pay for a new ECU, sensor and fluid plus labour, total £320.

 

Not sure if it needed any of this as part of the problem is the ignorance of the technicians. However, before doing the work they had the car back in for another diagnostic (free). And without fitting any parts managed to remove the warning and increase the power output by some 20%,

 

They have now fitted the parts.

 

Moral. Lots of mysteries and unanswered questions but it pays to make a fuss and go for your rights. A design fault in an ECU means it was not ‘fit for purpose’. Therefore the guarantee means nothing.

 

If you have an early model it may also have the design fault. Mine is 2001 2.2 SE

 

 

Cloughie

[cloughie]

To update my earlier reply in this posting, (Cloughie). I pestered Citroen UK who agreed to pay for a new ECU, sensor and fluid plus labour, total £320.

 

Not sure if it needed any of this as part of the problem is the ignorance of the technicians. However, before doing the work they had the car back in for another diagnostic (free). And without fitting any parts managed to remove the warning and increase the power output by some 20%,

 

They have now fitted the parts.

 

Moral. Lots of mysteries and unanswered questions but it pays to make a fuss and go for your rights. A design fault in an ECU means it was not ‘fit for purpose’. Therefore the guarantee means nothing.

 

If you have an early model it may also have the design fault. Mine is 2001 2.2 SE

 

 

Cloughie

[bob c5]

Antipollution problem cured by Citroen Specialists Sovereign Car Centre Stafford.

The Vacuum Reservoir connection had broken off causing a leak.

In addition the Air Filter was saturated with condensation. A drain hole was drilled in the bottom of the housing to prevent any further problems.

[Guest TerryC5]

Hello, i had a similar fault, mine said asr fault, antipollution fault and went into limp home mode, I also had immobiliser fault and I have cured it myself.

 

My 2.2 hdi C5 estate 2002 went to the main dealers (Slaters of Abergele) and there was no fault in the computer at all, and I must praise them cos they put it on the computer spent just over an hour re-writing the fuel ecu and charged me absolutely nothing.

 

 

I had the particulate filter done 4000 miles ago and another of the faults displayed was diesel additive low or empty and its cured this too

 

 

In the end I changed the remote fob battery and that solved nothing, I at least hoped it would cure the immobiliser fault. It all boiled down to changing the car battery under the bonnet. I paid £98 for a Calcium battery from Halfords with a 4 year warranty and no faults have arrisen whatsoever. This is now 4 days on and the car starts better now than ever before, it even sounds slightly different when it starts up.

 

I would say to you all that its worth while having a free battery check and seeing if most other faults occur just for that reason.

 

 

Maybe a tell tale sign that your battery is not 100% is when Traffic master speaks to you on re-starting your engine up a few seconds after turning it off, mine did this before I changed the battery and has not done it since the changeover, another sign was my taxi radio would turn itself off on starting the car as if I had turned it off and back on again.

 

 

I hope changing the battery @ £98 would be a better option than paying some of the bills I have seen mentioned on here and still not curing the faults.

[PICASSOCONVERT]

So far they want me to pay for:

 

Diagnostic check 1 £70

Diagnostic check 2 undetermined though Citron have offered to make a contribution

Particle filter £350

ECU £400

 

Therefore in excess of £800 to turn a false warning off which may not even do the trick

 

 

For information, I paid £450 in total 2 years ago to my local Citroen service garage for a new particulate filter, new fluid and a new ECU (my car was new in 2001 and apparently it is common for the ECU to pack up when this work is carried out). The car had one 75,000 miles.

 

So, even allowing for inflation, £800 looks excessive.