With modern car keys becoming increasingly expensive to purchase new, it may be worth repairing your old damaged key. This mighty include replacing the outside case or blade if your existing key has broken apart or the blade is bent or snapped off. Electronic repairs can also be made to keys that aren’t operating central locking or starting. These repairs could be something as simple as replacing a flat battery, replacing a faulty lock/unlock/boot microswitch, replacing and programming a missing or faulty transpsonder chip.