Complaint 2015259

Complaint Summary

ENGINE

Owner Narrative

The exhaust manifold and supercharger on my 2016 Volvo XC90 have malfunctioned. The exhaust manifold has a visible crack, and the supercharger has seals that are leaking exhaust gases. Both components are available for inspection upon request and have been diagnosed by an independent mechanic who conducted a smoke test revealing these issues. The malfunction poses a significant safety risk as exhaust gases are leaking into the cabin, creating a dangerous environment that could lead to carbon monoxide poisoning. This condition represents a serious health hazard to anyone in the vehicle. Yes, the problem has been confirmed by an independent service center. They diagnosed the issue with the P0171 code indicating the engine is running lean due to a vacuum leak. They also conducted a smoke test that identified the cracked manifold and leaking supercharger seals. The vehicle has not yet been inspected by the manufacturer, police, or insurance representatives. It has been inspected by an independent mechanic. Yes, prior to the failure, the vehicle displayed a warning light for the P0171 code indicating that the engine was running lean. Other symptoms included unusual oil consumption and excessive oil in the intake system, which were previously diagnosed by a Volvo dealer as a factory defect.

Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.