My C3 is now about 13 years old and has been running well. Now I find that the engine computer warning light comes on intermittently, particularly when cold or driving slowly.

Also, there is a vertical line of orange lights on the left hand side of the display that normally come on one by one until 3 are illuminated as the car warms up. The top light is red and I have never before seen it light. This red light has started to come on without the others when I start the car. It beeps and lights 3 times. This happens every half minute or so until the car warms up.

Are these things very important?

I hesitate to take it to either of the nearest citroen dealers because they always use any excuse to rip me off and sell me things that prove to be unneccessary. (The disadvantage of being a woman with a car and presumed to have no common sense).

Any Advice??