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Hello and welcome to just answer. First make sure that you have ove 1/4 tank of fuel. Then Make sure that the check engine light is off, codes cleared; cold start. -warm up engine 5 minutes (or until closed loop is reached--5 min is usually plenty)-drive (w/ steady throttle) at a steady speed between 40 and 60 mph for 8 min -stop and idle 3 min. -drive (w/ steady throttle) at a speed above 20 mph for 2 min -turn key off, leave off 10 min
I hope this information helps, and let me know if you need further assistance with this.
2003 Jetta left rear window blue plastic part of the