Central lock in driver door PROBLEM :(

enosocket wrote: ↑Sun Mar 24, 2019 11:36 am Hi everyone, few days ago my C3 2009 (II-gen) didn't want to lock oneself. Until then the central lock don't work.

When i get in to the car and close the door, the lights, which says that door is open, is going off. I start the engine and there is no information about open door at the display. When I open the door there is a information that the door is open and light is turned on. So car know that the door is open or closed. But when I am in the car and it's closed and then I want to lock it by the button on the dashboard it says that the left front door is open. The same situation is when I'am outside of the car and all the doors are closed and i try to lock it by a key. I can hear that it try to close every door, but immediately it's going back (becouse it's somehow in this moment think that door is open)...

Can you help me?

Arfur Dent wrote: ↑Sun Mar 24, 2019 12:51 pm

enosocket wrote: ↑Sun Mar 24, 2019 11:36 am Hi everyone, few days ago my C3 2009 (II-gen) didn't want to lock oneself. Until then the central lock don't work.

When i get in to the car and close the door, the lights, which says that door is open, is going off. I start the engine and there is no information about open door at the display. When I open the door there is a information that the door is open and light is turned on. So car know that the door is open or closed. But when I am in the car and it's closed and then I want to lock it by the button on the dashboard it says that the left front door is open. The same situation is when I'am outside of the car and all the doors are closed and i try to lock it by a key. I can hear that it try to close every door, but immediately it's going back (becouse it's somehow in this moment think that door is open)...

Can you help me?

Hi enosocket

I see there are 2 possible areas of the fault.

First is the door solenoid pack These often go faulty over time, and this shows particularly on the early generation of C3, but design doesn't change that much for the C3 models. Try a new door solenoid pack if you didn't want to get into the lexia/diagbox diagnosis for central locking faults.

Some C3 Door solenoid lock pack removal tips. These are early car tips, but the will be very similar to later models.

The other potential place for a fault like this is the BSI and its connectors. Hopefully a new door solenoid will fix it and you won't have to touch the BSI