Turning over but not starting.

Hi, wonder if anyone can help?
I changed the plastic part of the key fob today. Didn't take the battery out and the key locks and unlocks the car as normal. Don't know if that's relevant.
Unfortunately, the car now turns over, but won't start. All other functions of the car work, radio, lights etc.
anyone any ideas?
Do you think the immobolisor is stopping it starting? If so, how do I fix it? As I said, the key fob is unlocking and locking the doors as normal.
Thanks in advance for any info.

Hi,

Your original key has hidden inside the plastic a small transponder chip which has to be swapped together with the blade and the cicuit board. Without that chip, your car will refuse to start

HZ

Excellent advice HZ,

there are some pictures of the part that got missed in this post in the tips section

Key fob parts:
https://citroenc3owners.com/citroen-c3-t ... -t449.html

and a youtube video shows the missing part too

i just had exactly the same issue ...
lol

deleted my post as i bothered to read the above link thread

i have flash disabled so i didnt see video

ops

paulg wrote:i just had exactly the same issue ...
lol

deleted my post as i bothered to read the above link thread

i have flash disabled so i didnt see video

ops

This may help others with flash disabled

A URL to the topic for fixing the fob showing the immo chip citroen-c3-tips/early-c3-transponder-ke ... -t449.html

and some JPG images





If you have lost your original, all is not lost as it is possible to program a new one, but it requires a working lexia tool (available here on ebay).