2018 Volkswagen Passat Engine Problems
6 owner-reported engine complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Owner Complaints (6)
Your engine warning lights (EPC and check engine) came on, and your car is shaking while running. This typically indicates an engine misfire or fuel system issue that needs diagnostic attention. A mechanic will need to scan your vehicle's computer to identify the exact problem, which could involve ignition components, fuel injectors, or engine sensors.
Parts you may need:
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Your oil pressure warning light came on while driving. After adding oil at low level, the dealership confirmed your engine is burning oil at a rate of about 0.25 quarts per 600 miles. Rather than fixing the issue, they're asking you to return repeatedly for monitoring, which feels like a waste of time when you have an extended warranty and have maintained the car properly at VW. The engine oil burn needs to be permanently repaired, not just monitored.
Parts you may need:
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Your check engine light came on due to a failed air pump control valve connected to the engine water pump. A small leak in the air system developed, and the water pump lost pressure over time, causing increased emissions. The air pump control valve's relay stopped working and needed replacement along with the water pump, costing $820 in parts and labor. The repair may involve replacing the air pump control valve, relay, and engine water pump to restore proper air system function and emissions control.
Parts you may need:
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Your intake manifold runner is failing, which can cause your car to suddenly enter limp mode while driving on highways — a dangerous situation where your engine loses power and slows down significantly. Your check engine light is on, and a diagnostic test confirmed the intake manifold runner has failed. The repair will likely involve replacing the intake manifold runner component.
Parts you may need:
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Intermittent stalling. Typically at stop, when vehicle has been running a short time. Vehicle restarts. Occurs frequently, every week, but not every trip. Started in spring 2021, recurring issue. Mechanic unable to replicate.
MY CAR IS UNDER 7000 MILES, DON'T EVEN HAVE THE FIRST SCHEDULE OIL CHANGE AND EXPERIENCE EXCESSIVE OIL CONSUMPTION. I HAVE TAKEN IT TO THE CAR DEALER AND JUST TOP OFF THE OIL. SOMETHING IS WRONG WITH THE ENGINE.