There are several areas that could go wrong. The lock cylinder, the short forked arm that connects the lock cylinder to the inner door latch, and the actuator rod to the lock knob on the door top interior panel. Replacement parts for the plastics that hold actuator rods are available through many online Porsche sources.
If the key turns and the door unlocks, butnothing happens with the lock knob, it is likely one of these has come undone. The other possible culprit is if the short forked arm on the back of the lock cylinder. If the key turns and the lock does not function, this will likely be At Fault. I have not seen one break off, but it does have a single screw holding it on. Should the screw loosen it would come off or lose alignment and not function.
If the key does not turn I would look to either a siezed inner lock mechanism, which can be lubricated or replaced, or a faulty lock cylinder. The cylinder will often become corroded from age and lack of use.
To repair any of these you need to remove the inner door panel. The actuators are in plain sight. To fix any issue with the lock cylinder or door handle itself, remove the 2 8mm nuts securing the door handle and remove the handle. Once removed, take out the single Phillips head screw holding the forked actuator arm to the back of the knob. Once removed, insert the key into the lock, and from the back, push the lock cylinder out. It can then be cleaned and lubricated.
Be careful, if you remove the individual locking pins after pulling the lock cylinder, you MUST put them back in the same locations or your key will no longer fit the lock, you will have essentially "re-keyed" the lock.
There are a number of free Porsche online forums for advice, many also have parts for sale sections. I tend to use Pelican Parts. Even if a part for your car is no longer available at the dealer, you would likely find a used replacement free or cheap from a fellow Porsche owner.
Enjoy your car.
Vince
Remove the door panel, find and repair the lock linkgage.
The linkage is not connected to the door lock barrel. You will need to remove the inside door panel. Connect the linkage to the door lock barrel.
It depends on what vehicle you need to repair it on.
There isn't a fuel door release button on a 2001 or any Porsche Boxster. When the doors to the car are locked the fuel door also locks but when the doors are unlocked the fuel door will unlock. Open the fuel door and lock the doors and you can see how the mechanism works.
Thedoor latch/lock assemblies are not repairable. Replace it with a new one.
If your windows still work on the switch than it is most likely that the switch is bad I had the same problem with mine and it was the switch
I need to know how to repair the power lock on my corola dx 95 rear right door the door panel must be removed there is a electronic lock solenoid that controls the lock eods to door latch. if it grinds or makes noise replace solenoid if there is no noie check for a 12volt signal at plgs to lock solenoid if ther is no power sometime wire breaksin the door jam harness from opening and closing door wires bend back and forth and are known to break 80 % its the lock solenoid
u will probably need to remove the door card and gain access behind the door handle to remove the lock. Glad to be at assistance
remove interior door panel to access power lock mechanism.
Either replace the lock or disassemble it for manual repair.
You have to take the trim pad off and get inside the door.
You can get a diagram for the door lock assembly in the Haynes 99 Mercury Mountaineer Repair Manual. The book is available at most auto parts and major book stores.