NHTSA Complaint #11611736 — 2008 VOLKSWAGEN PASSAT

My son bought this used car. The STOP ENGINE light came on, got an oil change but the light did not go away. Were told that the oil pressure might be the issue so took it to the mechanic. We were told it was most likely the oil pressure switch. There were multiple codes(cones) and were cleared. The switch was replaced but the engine light's still on & the STOP ENGINE comes on but goes off. It appears it is a gas pump issue that it might be manufacture fault. Is there a recall for this issue on this 2008 Passat? It's my [XXX] 's first car, he saved & bought it but it's dangerous...he got it diagnosed & was told it's a $5,000 job. If it's an oil/gas pump manufacturer issue, is Volkswagen responsible? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)