I have not had my 206 W reg diesel very long and it had been fine to drive doing long/short trips. Now every so often when I am driving along at 50/60mph I suddenly hear a clicking/ticking (relays??) noise behind the dash and the STOP light starts to flash for about 10 seconds inconsistantly. Temperature is flying up to red. Within 20 secs everything calms down back to normal. This can happen any time between me doing 40 miles and 700 miles!! Have taken it to main dealer,they kept it for 3 days and didn't know what was wrong and guessed they should replace the green temp sensor & blue temp sensor but couldn't guarantee that was gonna solve it. This obviously has not worked and it's still happening every so often. I cannot afford to go to the main dealer again for a while. Would really appreciate a reply from anyone else who has had a pug like this or knows what it could be.
Bex