cloughie

2001 2.2 HDi SX I am experiencing deep vibrations through the car; this only happens on overrun (but not always) and can be cancelled by dipping the accelerator or the clutch. Any thoughts. Cloughie More info as requested by Ronin The car runs very well and has done nearly 90k. Mpg could be better, 33 on short runs, 28 towing a caravan, but service is due. Intermittently, when taking my foot of the accelerator, the whole car vibrates; I think it comes from the engine. The vibration will normally disappear when it slows to less than 20, also it rarely occurs over 50 mph. It will disappear immediately on accelerating again, or if I dip the clutch momentarily. This has been happening for a few months and has not got worse. Brakes and wheel balancing are all good. 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

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

See my reply to 'Antipollution Problems C5' re diesel additive. John

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

Depends which model you have, instructions are not much use. Some models have the air con marked as A/C and some as ECO. If they are marked A/C or snowdrop the light should be on for full auto working with air con, light off indicates air con off. If marked ECO, light on means economy mode, therefore air con off. Normally the light should be off for full auto mode. My handbook is confusing on this issue and the main dealer did not know either.