"Is the Impreza 2.0i reliable, and what should you check?"
When buying a used Subaru Impreza 2.0i 2010 (III), the most frequently mentioned issue: Ignition Coil/Spark Plug Problems and Misfiring. Also, Oil consumption and blue smoke are commonly reported.
Caution advised
Most reported issue: Ignition Coil/Spark Plug Problems and Misfiring. Service history and a test drive matter.
Engine / trim
2.0i
Body / generation
III
Model years
2010
Known issues and risks
Listed from most frequently reported, each with its source.
Ignition Coil/Spark Plug Problems and Misfiring
Often reported
Many users report intermittent knocking or misfiring in the Impreza 2.0: typical symptoms include jerking during acceleration, rough idle, and check engine light illumination. Recurring causes mentioned in forums include faulty ignition coils, worn spark plugs, or connectors/injectors.
Engine Internal
Oil consumption and blue smoke
Often reported
The EJ20 boxer engine may experience higher than normal oil consumption due to worn piston rings, oil pump, or valve stem seals; this leads to frequent oil top-ups, blue smoke from exhaust, and performance loss.
Engine Internal
Oil leaks from valve cover and gaskets
Often reported
A frequently reported issue on EJ20 boxer engine Impreza/Forester is oil leakage from valve cover, spark plug tubes, and cam bearing seals. Oil dripping onto exhaust manifolds can cause smoke and burning smell at idle.
Engine Internal
Head gasket failure / oil-coolant mixing risk
Often reported
In the EJ engine family, head gasket failures can cause leaks or oil-coolant mixing, though less common than other issues.
What to look for when buying a Subaru Impreza 2.0i?+
When buying a 2010 model 2.0i, check service history, test drive, and engine/transmission warnings. Most commonly reported issues: Ignition Coil/Spark Plug Problems and Misfiring; Oil consumption and blue smoke; Oil leaks from valve cover and gaskets.
What are the chronic problems of the Subaru Impreza 2.0i?+
Most commonly reported issues: Ignition Coil/Spark Plug Problems and Misfiring; Oil consumption and blue smoke; Oil leaks from valve cover and gaskets.
Is the Subaru Impreza 2.0i reliable?+
Rather than a simple yes/no, it's necessary to evaluate proven pros and cons together. This page lists 4 verified findings.
How does Carbeak collect data?+
The cards on this page are derived from Difetti fault database records; brand, fuel, engine, and generation compatibility between source and target vehicle is verified. Topics with insufficient evidence are not shown.