Pre-purchase inspection checklist — 2018 Subaru Impreza
The 2018 Subaru Impreza generally holds up well, but watch for fuel pump, ECM, and exhaust system issues due to significant recalls and complaints about exterior lighting, electrical systems, and engine components.
Known issues to inspect
PCV valve may break
How to check: Inspect the PCV valve for any visible cracks or separations.
ECM may short circuit
How to check: Check for any warnings or electrical malfunctions on dashboard.
Fuel pump failure risk
How to check: Test fuel system performance; listen for sputtering.
Headlight reflector inadequate
How to check: Inspect headlight reflectors for proper reflection.
ECM software issues
How to check: Ensure all electrical components function correctly.
Test-drive walkthrough
- 01
Cold start
What to check: Listen for unusual engine noises or sputtering.
Red flag: Persistent knocking or sputtering sound
- 02
First minute idling
What to check: Check dashboard for warning lights.
Red flag: Any persistent warning lights
- 03
City driving
What to check: Observe if acceleration is smooth and consistent.
Red flag: Hesitation or jerkiness during acceleration
- 04
Highway acceleration
What to check: Ensure engine power is adequate without stalling.
Red flag: Engine stalls or lacks power
- 05
Braking test
What to check: Feel for smooth and effective braking response.
Red flag: Brakes feel spongy or ineffective
- 06
Parking maneuver
What to check: Check for steering response and ease of maneuvering.
Red flag: Steering feels stiff or unresponsive
Questions for the seller
Use this exact phrasing.
- Has the fuel pump been replaced?
- Were there any ECM software updates done?
- Is the PCV valve inspected or replaced?
- Have there been any headlight issues?
- Any past electrical system repairs?
Documents to request
Don't sign anything until you have these.
- Recent repair receipts
- Recall completion records
- Vehicle history report
- Previous owner information
- Maintenance records
Generated by gpt-4o on 8/19/2026. Grounded in the NHTSA recall corpus and owner-complaint patterns for the 2018 Subaru Impreza.