Car theft or car break-ins are always a worry to the motorist and it is wise
to take every precaution against them that you can.
Central door locking is a feature that provides both convenience and added
security to anyone who regularly drives around with passengers in their
The most obvious advantage of a central door locking system is that it
provides a quick and easy way of locking all the doors of your car together
just by operating the driver's lock. The security gain is that there is no
danger of leaving a door unlocked. You can also easily lock the rear doors to
keep small children inside the car.
To convert your car to central door locking you need a kit, which you can
readily buy from a car accessory shop. It consists of electrically operated
drive units that you mount inside the doors, along with all the wiring,
brackets and link rods that you need for fitting it to your car.
A kit can be used on a two- or four-door car, although the benefits of
fitting one to a four-door car are obviously greater. It can also be used on
almost any model of car, but you should check with your dealer first in case
your car is unsuitable. It is also a good idea to shop around before you
When the driver's door lock is operated it moves a switch in the master
drive unit. The master unit then sends a signal to the drive units which move
the link rods and lock or unlock the other doors.
Some kits are also supplied with a remote control. This allows you to lock
the car from the outside with a hand-held unit. This has the advantage that, if
the locks freeze in cold weather, you may still be able to unlock the door
using the remote control.