My Citroen C5 woes - help needed

[geordiepaul2001]

deleted as no longer relevant.
The fault was the dpf and this was rectified with motorway driving.

[mooseshaver]

Try your reg here http://www.citroenrecalls.co.uk/" onclick="window.open(this.href);return false;
Also check vosa as there is a recall for oil level reading as incorrect causing the car to stall usually after breaking.

[geordiepaul2001]

Thanks, I just checked both sites but unfortunately my car doesn't fall into any of the recall categories - the recall for the oil warning is just a month out.

[mooseshaver]

Shame.
Probably a session on a lexia then. There is a sticky with locations of people with this magical device.

[geordiepaul2001]

I have made contact with a member on here with a Lexia

I have a friend who is a mechanic and he has a generic machine that reads realtime data and fault codes.
According to this the Diesel particulate filter was at 148%.
The car cut out a couple of times whilst idling and the fault shown was an injection relay fault.

I am still none the wiser.

[mooseshaver]

If the particulate filter is reading 148% that may be an issue. You can force a regen from a Lexia. When mine was working I couldn't find where it was.
I think if a particulate filter clogs past a certain point only a diagnostic system can make it regen, the car won't do it itself. Somewhere beyond that even a diag system can't and its new fitter or clean out time. This is generic info from the AA site I read a while back so may not be correct.

[coastline taxis]

At a 148% that filter is well past And will need changing. Your oil problem will most likley be conected to the filter problem

Regeneration is either passive or active
Passive regeneration

Passive regeneration takes place automatically on motorway-type runs when the exhaust temperature is high. Because many cars don't get this sort of use car manufacturers have to design-in 'active' regeneration where the engine management computer (ECU) takes control of the process.
Active regeneration

When the soot loading in the filter reaches a set limit (about 45%) the ECU will initiate post combustion fuel injection to increase the exhaust temperature and trigger regeneration. If the journey is a bit stop/start or you take your foot off the accelerator while the regeneration is in progress, it may not complete and the warning light will come on to show that the filter is partially blocked.

It should be possible to start a complete regeneration and clear the warning light by driving for 10 minutes or so at speeds greater than 40mph.

If the regeneration is unsuccessful the extra fuel injected will not burn and will drain into the sump. Oil quality will deteriorate as a result of this and the level will rise. It is important that you check that the oil level does not increase above the maximum level on the dipstick as diesel engines can run on excess engine oil – often to the point of destruction.

If you ignore the warning light and keep driving in a relatively slow, stop/start pattern, soot loading will continue to build up until around 75% when you can expect to see other dashboard warning lights come on too. At this point driving at speed alone will not be enough and you will have to take the car to a dealer for regeneration.
Expensive repairs

If you continue to ignore warnings and soot loading keeps increasing then the car won’t run properly and the most likely outcome will be that you will have to get a new DPF costing at least £1000.

The ash residue which remains after successful regeneration cannot be removed and will eventually fill the filter. DPFs are designed to last about 75,000 miles. The windows and the aircon were both subject to recalls. Sorry for the bad news but its a new filter your wanting .
best regards
steve