2002 passat door deadlocked

https://www.google.com/search?q=Engine+diagram+92+geo+storm+gsi&biw=1362&bih=650&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjYzZrkhpjQAhWBfCYKHd5eCVMQsAQIGg#tbm=isch&q=Fault+code+16618+overboost+Passat+2.0+tdi+estate+sport+2006+is+ther+anything+I+could+test
Hope this helps

Possible failing ignition coil? Need more info.

Brake booster pump has stopped working, replace.

• There is a fuse box on the drivers side either under the dash or on the aids of the dash. One of them fuses could be blown.

• The other thing that could be going wrong is the harness on the driver side door. If you open the drivers door you will see a harness stretching from the frame to the door. You can get into that harness and look for broke, bulged or rusted wires and splice in new ones. This is common with aged vehicles because of the amount that door is used.

Shut off your Volkswagen Passat before replacing a fuse. Find the fuse box on the driver's side of the car, under a plastic cover on dashboard to the left side, door open.

im afraid there is no easy way , vw can try and carry out a final controlled diagnoses on the rear door latch, but if this does not work then you will have to remove the door panel and carry behind it and then try and break the latch off to release the door its not an easy job, i hope this helps

change anti roll bar bushes.Allso check coil springs are not brocken.

Remove

if theres a constant squiek comin frm the car all the time it mite not be the tensior some times the altantor goes to replace the belt put it round the bottm weal first then wrk ur way up then

You need to take off window. A good explanation with pictures is at that address:
http://www.taligentx.com/passat/maintenance/doorlockmechanism/