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Depollution System Failure - Is it really urgent |
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jls483 |
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Member No: #11966
Joined: Jan 05 2010Location: Salisbury |
A light has come on saying that the depollution system has failed and the manual says take it to be serviced urgently. I have done some research and somebody recommended taking it for a long drive on the motorway if it has been doing lots of short journeys - it has. I understand the light only indicates that a sensor has spotted something different and that a multitude of things may have gone wrong. However it is a bank holiday Tuesday and my wife would like to take the car away for a week rather than our old banger of a second car. Are any of the multitude of possible problems really urgent? How often does this light indicate a problem with too many short journeys? Thanks for any advice. John. |
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Biohead |
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Member No: #6049
Joined: Nov 05 2008Location: Bracknell |
Get it on the motorway, and give it some high revs, this gets the exhaust nice and hot and burns off all the crud in the exhaust if you have a Diesel. If whilst you're travelling to the motorway you feel the car's not right, avoid the motorway and take it back home as it's the best bet - especially with garages being closed today due to bank hol. |
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jls483 |
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Member No: #11966
Joined: Jan 05 2010Location: Salisbury |
Thanks Biohead, Could you confirm exactly what you mean by high revs. Are we talking 4000, 5000, 6000? And for one minute, two minutes, three minutes? Do you happen to know if the warning light is constantly testing - will it go out as soon as the problem is fixed? Are we at risk of doing damage to the car or just the environment? Many thanks, John. |
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garymaule |
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Member No: #24621
Joined: Mar 08 2012Location: Scotland |
Hi there This happened to me and I was advised to take it right to a Citroen garage which I did and they replaced my diesel particle filter. Was advised not to drive the car. My car had went into limp mode and had an engine management light on. Hope this helps. |
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C4Darren |
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Member No: #13754
Joined: May 18 2010Location: Ayrshire, Scotland |
I have the issue curently on mine, 1.6HDi 90 with no dpfs. Came on more frequently with the remap but as has been said a bomb down the motorway at 2k+ and it rights itself. Hope it helps. | ||
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jls483 |
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Member No: #11966
Joined: Jan 05 2010Location: Salisbury |
All Citroen service centres busy so RAC have come out to have a look! They find that the error is P0470 Exhaust Pressure Sensor Malfunction. He's out there now trying to find the particular sensor John. |
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Dave_Retired. |
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Member No: #1
Joined: Aug 07 2006Location: Northumberland |
It's under the battery mount in the engine bay: - Click Here - [shadowbox=http://c4owners.org/plugins/forum/attachment/1/1338993503_1_FT164483_p0470.png| P0470 Error Code Details::||]http://c4owners.org/plugins/forum/attachment/1/1338993503_1_FT164483_p0470_.png[/shadowbox] |
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craig573 |
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Member No: #22671
Joined: Oct 31 2011Location: Shildon |
Where is the Particular filter pressure sensor located on a 2.0 C4 HDI VTS? just out of interest | ||
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jls483 |
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Member No: #11966
Joined: Jan 05 2010Location: Salisbury |
RAC man did a lot of research including reading the information sent by C40wners.org - thanks everyone and talking to the local Citroen garage and in the end we just cleared the warning and took it for a test drive and it has been fine. No loss of power at all. Now just waiting to see if it comes back on. Thanks again, John. |
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