door locking mechanism

[ScottB2460@aol.com]

What are some steps on can do to fix the door locking mechanism or is it best
just to replace them?  I belive there are two/three parts and are not
expensive, its just the labor involved that makes it a long project.  My
passenger door lock is starting to not do things like lock all four door when
I lock the car from that door.  About a year ago my drivers side started
doing the same things but it was a bigger issue being the drivers door.  That
was pre quattro list and I had the dealer replace the unit.  It cost $150
parts/labor...TIA,

Scott
89 200tq