Quote Originally Posted by JustCruisn View Post
VW do not know how to make things from plastic. Everything plastic part on a VW is prone to failure. Water pump, window regs, master cylinder, coolant sensor housing, window switches etc all the way to peeling soft touch plastic have all failed on my car.
I'd agree with this ...

water pump - yes, replaced;
window regulator clips - yes, just done (though 10 years for plastic under that kind of pressure is pretty good - though obviously metal is a better choice for that part. What were the VW engineers smoking?);
master cylinder - no, touch wood;
coolant sensor housing - maybe, might explain the intermittent warning light on my dash;
window switches - yes, replaced;
soft touch plastic - yes, peeling in all directions.

Pretty much epic fail with plastic for the mk4.