I have a 2002 VW Jetta TDI. I have replaced the starter 4 times within the last 6 months, and I have also replaced the battery.
The pinion gear on the starters are getting grinned out. it will start up nicely for the first day, then it gets louder and louder each day after like it's grinding between the fly wheel and the pinion gear. The flywheel looks fine, but I am burning out the pinion gear, or it's not fully engaging.
Is there something else I am missing? Is there something that would preventing the started to fully throw out the pinion gear?