The 2024 Forester continues Subaru's FB25 naturally-aspirated boxer tradition with improved head gasket reliability over older EJs, but oil consumption issues and CVT concerns remain the primary long-term watch points. Being model-year 2024, real-world high-mileage data is limited, but patterns from 2019-2023 Foresters with identical powertrains show predictable weak spots.
Excessive Oil Consumption (FB25 Engine)
Occasional · medium severityTypical onset: 30,000-70,000 mi
Symptoms: Low oil light between changes, Blue smoke on cold start, Oil level drops 1+ quart per 1,000 miles, Carbon buildup on intake valves
Fix: Piston ring replacement or short block if cylinder scoring present. Requires engine removal, 18-24 labor hours. Some qualify for extended warranty coverage (check TSB). If caught early, top-end work may suffice at 12-15 hours.
Estimated cost: $4,500-7,500
CVT Transmission Judder and Shuddering
Common · medium severityTypical onset: 40,000-80,000 mi
Symptoms: Low-speed shudder during light acceleration, Hesitation when rolling into throttle, Slight vibration at 20-40 mph under load, Transmission fluid darkens prematurely
Fix: Flush with Subaru High Torque CVT fluid (not generic), replace transmission oil cooler and lines. Software update available. Severe cases need valve body or full CVT replacement at 16-20 hours labor. Most resolve with fluid service at 2-3 hours.
Estimated cost: $400-6,000
Driveline Vibration and Driveshaft Issues
Occasional · medium severityTypical onset: 20,000-50,000 mi
Symptoms: Vibration at 50-70 mph that changes with throttle input, Clunking when shifting from reverse to drive, Whirring sound from center of vehicle, Vibration felt through seat and floor
Fix: Center support bearing or driveshaft balance issue. Inspect driveshaft carrier bearing, replace if worn. Some units have poorly balanced shafts from factory—rebalance or replace driveshaft assembly. 2-4 hours labor. NHTSA recall addressed some early production units.
Estimated cost: $600-1,800
Fuel Pump and Fuel Filter Failures
Rare · high severityTypical onset: 15,000-40,000 mi
Symptoms: Intermittent no-start condition, Engine stumble or stalling under load, Rough idle after refueling, Check engine light with fuel trim codes
Fix: Fuel pump module replacement requires dropping tank, 3-4 hours labor. Some early 2024s had contaminated fuel filters from manufacturing—check for TSBs. Fuel filter integral to pump assembly on this platform, cannot service separately.
Estimated cost: $800-1,400
Transmission Mount Failure
Occasional · low severityTypical onset: 50,000-90,000 mi
Symptoms: Clunk when shifting into gear, Excessive engine movement when accelerating, Vibration at idle in Drive, Visible cracking or separation on mount inspection
Fix: Replace rear transmission mount. Common wear item on CVT Subarus due to constant torque converter lock/unlock cycles. 1.5-2.5 hours labor depending on access. Use OEM mount—aftermarket options fail prematurely.
Estimated cost: $300-500
Infotainment System Freezing and Software Glitches
Common · low severitySymptoms: Touchscreen freezes or blacks out, Backup camera delayed or no display, Audio cuts out intermittently, Bluetooth connections drop randomly
Fix: Software update via dealer StarLink system. Occasionally requires head unit replacement if hardware fault (failed SSD). Most resolve with software reflash at 0.5-1.0 hour. Persistent issues may need head unit swap at 2-3 hours.
Estimated cost: $150-2,200
Solid choice for used buyers who prioritize AWD capability and don't mind monitoring oil levels—just budget for eventual CVT service and verify no oil consumption history.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.