Car: Ford Mondeo Mk3, 4-door sedan ('02)
Every year during the summer the central locking starts to act up. This car has a double central locking system. If I push once on the remote, only the drivers door gets unlocked. Push twice and all the locks are unlocked.
I always push once leaving all the doors, except for the drivers door, locked.
Problem:
The central locking unlocks itself
almost every time when I'm driving. Sometimes I'm almost having a heart attack (while driving) because the doors unlocking themselves making a lot of noice.
The button on the center console to open up the boot lid (trunck lid) doesn't always work either. Sometimes it does, sometimes it doesn't.
This always happens during the summer when the outside t° is more than 15° Centigrade (59° Fahrenheit).
In the beginning I thought it had something to do with moisture but that is not the case. I used contact grease on all the contacts to prevent moisture coming into the contacts causing a short circuit ( or something like that
).
Sometimes the drivers door locks itself when I'm driving. I unlock it (also when I'm driving). It locks itself again. I unlock it again and no surprise there because the door locks itself again. When I hold the lock, preventing it to lock itself again, I feel that the lock wants to, mmmmm, lock again. It can't because I'm stronger and frustrated at the same time. What happens next? Well the central locking system decides to unlock all other three doors instead of locking the drivers door.
I have contacted many Ford specialists, Ford dealers and they all say different things. None of them knows what is wrong with the central locking.
Things they said:
* moisture related. Not true because I have no problem during the winter, rainy days or the autumn. Only during the summer, spring.
* one broken door lock (but they don't know which one). Too expensive to get all the locks replaced.
* broken boot lid (trunck lid) lock
* wiring
* electronics (although this has been tested through the OBD port).
Is there a Ford specialist on GTP who knows what is wrong because this is a very annoying problem, especially when I'm driving and all three doors unlock themselves without any warning.
Thanks