I bought SWMBO a 60 plate C3 the Christmas before last, it had 20+a bit thousand miles on the clock.
When it started to tell me it was overheating - it was obvious that it wasn't - I went to Citroen for a replacement engine temp sensor, where I was told there was a mod on the 1.6 petrol engine fitted in her car. The original temp sensor is integral to the thermostat housing, so the mod is to fit the new sensor into the bleed/vent at the top. I got them to fit it ..... partly cos I didn't want to get my hands dirty & partly so I had some come back on the official mod.
On collecting the car I was tod that there was an oil leak from the solenoid that sends oil to the variable cam set up ...... Citroen know about it so were willing to contribute 80% to the job, but that would still leave me with £200 to pay. Also, there's a leak from the water pump ..... kerching £270 please. A little digging revealed that Citroen also know about that one too because the replacement pumps are cast ally instead of the original plastic. When I asked them for a contribution towards that too, they effectively paid for the pump & I paid £200 labour. Maybe a year later, I/she got an EML saying that a cam sensor was goosed. When paying for a new one (c£25) I was told which one it would be ....... it's
always that one!
Despite being an auto, it stalls most cold mornings at exactly the same spot ........ Citroen have had it back to have a look, the best advise they can offer is that because the battery could be better, try a new one.
To give Citroen their due, they didn't charge me while they looked, and they replaced a blown headlight bulb FOC the first time it went back
Other than that ..........
Good luck ..... it's Fench