C3 Stop Start Alternator/starter

[ucapajr]

Hello all,

  I'm trying to fix my dead C3 2006 Senso-drive stop-start petrol. It came up with "Stop start faulty" a few days ago and has not started since. I changed the battery, still the fault. Checked the ECU for fault codes, none. I took off the aux belt to see the starter motor working and it trying the start it did cause the motor to turn, only slowly and jerky, not lasting more than 1/2 second. After one or two attempts at turning the engine over like this the start motor would not turn at all. Returning an hour later and I could repeat with the starter motor turning slowly/jerkily.I have take then the starter motor out and I think its blown, but I have no way of testing this here. 

 

Can anyone give any advise on what the fault could be? Having done some research it could be that the ECU thinks it should start the engine as if its stopped at the traffic lights and only give the engine a little kick, expecting it to start almost immediately. On the other hand it could be the stop-start alternator. I have looked for the second hand alternator to fit a stop-start and I can not find any, at all! I can find new one's at £600 for euro car parts. Ouch!

 

Any help please? 

[paul.h]

Welcome to the forum.

 

All I can suggest is to visit your Citroen dealer. Since the car is giving a message of a fault I would think they can do a diagnostic check that will say what the fault is. If you have home start with a breakdown company such as the RAC they would take your car to the dealer. I think there is more than 1 battery if you have Stop/Start and then the main battery is a special expensive one to take all the starts. The other battery I think is in a box under the passenger front seat.