doors will not unlock

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My Name: Lisaf

Member
Posts: 3
Joined: Tue Jun 22, 2021 4:00 pm
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: I dont know
Fuel Type: Petrol
Mileage: 80000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

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I have a c3 desire. The doors won’t open, when I press the fob, absolutely nothing, not a flicker. I bought a replacement fob, tried changing the battery first. Still nothing, swapped the inner board to the new fob with new battery, still nothing. What next?

How do I get in the car ?
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My Name: C3CAR

Guru
Posts: 2706
Joined: Wed May 04, 2011 10:01 am
Model: C3 2002-2005, Original shape model
Year: 2002 (02)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 140000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
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Lisaf wrote: Tue Jun 22, 2021 4:05 pm I have a c3 desire. The doors won’t open, when I press the fob, absolutely nothing, not a flicker. I bought a replacement fob, tried changing the battery first. Still nothing, swapped the inner board to the new fob with new battery, still nothing. What next?

How do I get in the car ?
Hi

Use the original in key in the drivers door lock to get in.

Pop the bonnet and disconnect the battery for a while.

Reconnect and try the fob.


A replacement fob will never work.

Alternatively is to use the other remote key that came with the car.
My Name: Lisaf

Member
Posts: 3
Joined: Tue Jun 22, 2021 4:00 pm
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: I dont know
Fuel Type: Petrol
Mileage: 80000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

Key won’t even go in the door lock let alone open it. I only have one key it starts the engine.
My Name: Lisaf

Member
Posts: 3
Joined: Tue Jun 22, 2021 4:00 pm
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: I dont know
Fuel Type: Petrol
Mileage: 80000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

C3CAR wrote: Tue Jun 22, 2021 4:25 pm
Lisaf wrote: Tue Jun 22, 2021 4:05 pm I have a c3 desire. The doors won’t open, when I press the fob, absolutely nothing, not a flicker. I bought a replacement fob, tried changing the battery first. Still nothing, swapped the inner board to the new fob with new battery, still nothing. What next?

How do I get in the car ?
Hi

Use the original in key in the drivers door lock to get in.

Pop the bonnet and disconnect the battery for a while.

Reconnect and try the fob.


A replacement fob will never work.

Alternatively is to use the other remote key that came with the car.
There is only one fob, it’s a second hand car, no spare fob, only one key came wit it, starts the engine doesn’t seem to fit in the door
User avatar
My Name: C3CAR

Guru
Posts: 2706
Joined: Wed May 04, 2011 10:01 am
Model: C3 2002-2005, Original shape model
Year: 2002 (02)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 140000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 185 times
Been thanked: 99 times

Post

Lisaf wrote: Tue Jun 22, 2021 4:33 pm
C3CAR wrote: Tue Jun 22, 2021 4:25 pm
Lisaf wrote: Tue Jun 22, 2021 4:05 pm I have a c3 desire. The doors won’t open, when I press the fob, absolutely nothing, not a flicker. I bought a replacement fob, tried changing the battery first. Still nothing, swapped the inner board to the new fob with new battery, still nothing. What next?

How do I get in the car ?
Hi

Use the original in key in the drivers door lock to get in.

Pop the bonnet and disconnect the battery for a while.

Reconnect and try the fob.


A replacement fob will never work.

Alternatively is to use the other remote key that came with the car.
There is only one fob, it’s a second hand car, no spare fob, only one key came wit it, starts the engine doesn’t seem to fit in the door
These sorts of things would be checked when buying a previously owned car.

There are plenty of C3 on the second hand market and if the keys don't fit the locks, walk away. There is obviously something wrong and if the previous owner did this, what else have they done or failed to do?

It may be possible for you to pop the bonnet from under the car but it's not easy. The C3 wasn't designed to be opened like that. It was designed to use the drivers door lock should the central locking fail.

With the bonnet open, disconnect the battery for a while. Reconnect the battery and try the fob again. Probably best to leave the bonnet open to save having to manually release it a second time should the unlock not work.
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My Name: Ozvtr

Moderator
Posts: 1079
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
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Post

There are a number of things that could have gone wrong to put you in this predicament but I wont bore you with them. Suffice to say, under these circumstances, I don't have a magic answer for you.
I would recommend contacting a professional lock smith and tell them what has happened. They should advise you if they can get into your car or who to contact to do so.
The problem is; Citroen have spent a lot of effort to stop other people breaking into your car and now you are trying to do it.
The key/fob is supposed to be the only way into your car and if that fails...well, seek professional help.
I can assure you that the Citroen C3 is NOT the only car that can lock its owners out.
If we knew of a "secret" way into the car then thief's would too. By the way, no, we don't know a secret way in...sorry.
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