Rough idle when cold

[Sneeks]

My DS3 DSport+ has started to sound and feel very lumpy when cold, the revs constantly dropping and rising from 650-900rpm. Occasionally taking more than one turn to start although not often. Any idea of cause?

[lfcrule1972]

Is yours diesel or petrol ?

[Sneeks]

Petrol.

[lfcrule1972]

Oh ok, there are plenty of petrol owners here hopefully one may have a suggestion soon

[BOBO-DS3]

I get this too i just thought it may be a sort of automatic choke till the engine has warmed up as mine disappears when warm

[Ragnarok]

Mine has been doing it for a while already and so far not found any solution. If anyone comes up with something, let us know.

[Chris_Blue]

What year? Can you get a plug out and see what its like?
As usual....Oil level OK?

[Toxic]

Spark plugs and Air Filter ok? failing that may need a maf sensor (if there's one fitted) or temp sensor. Also possibility of a coil pack failing.

What fuel you running it on? 95RON or 97/98RON

[monkeynuts]

High Pressure Fuel pump failing after starting the pressure is not high enough and as the car runs longer the ecu compensates for the lack of pressure ........................one possible cause

[Sneeks]

I'll maybe get it booked into my local Citroen garage and have them check it over. The problem happens fairly regularly now.

[Chris_Blue]

Wise decision

[Sneeks]

Rough idle when cold

Not had a chance to get the car booked in yet but I think there may be a fault with a engine temperature sensor. Shortly after starting the car earlier this week the Stop light came on and a engine temperature warning was shown on the stereo screen. The engine temp needle was also up in the red. 5 seconds later the fault cleared and the temperature needle returned to its normal position. Clearly something is faulty so I'll see about getting it looked at this week.

I have noticed that the engine temp gauge would usually sit bang in the middle after a short time of the engine running, now it usually only sits at the first quarter marker.

[Chris_Blue]

Funny enough my temp gauge doesn't sit "Bang in the middle" on my dial.....its about a millimetre over- always LOL

[Sneeks]

Having read some other threads here I've checked my coolant header tank and it is empty. Do I simply top this up with water or does it need some other liquid? The manual is useless and simply states to use a specification of fluid which meets manufacturers specifications.

[lfcrule1972]

http://www.buyoils.co.uk/ourshop/pro...-SUPRA-1L.html

I found that on the Total Oils website.....