NHTSA Complaint #11570751 — 2018 VOLKSWAGEN PASSAT

I received a check engine light and my mechanic diagnosed the problem and attributed it to an the air pump control valve which was connected to primary engine water pump. A slight leak in the air system was noticed since the check valve failed. The primary engine water pump began to lose pressure over time causing increased tail pipe emissions. I tried to report this issue to VW but fell on deaf years. Since the primary engine water pump was part of a recall i was explaining that the air pump control valve also had to be replaced because the open/close relay stopped working. I spent 820 $ parts + labor to get this fixed and VW does not even want to accept it as a problem. I have been constantly encountering these problems with my VW car. This is a safety issue and hence wanted to report this to NHTSA.