The 2018 V90 is built on Volvo's SPA platform with the T5/T6 2.0L four-cylinder engine that's forced to do V6 work through turbocharging or turbo+supercharging. When maintained properly, it's a solid luxury wagon, but the high-stress powertrain and certain SPA-specific issues make careful pre-purchase inspection critical.
Piston Ring Failure and Bore Scoring (T6 especially)
Occasional · high severityTypical onset: 60,000-100,000 mi
Symptoms: Excessive oil consumption (quart every 500-1000 miles), Blue smoke on cold start or under acceleration, Loss of power and misfires in advanced cases, Check engine light with cylinder misfire codes
Fix: Complete engine rebuild with oversized pistons, rings, and cylinder honing, or short block replacement. 20-30 hours labor depending on whether you pull and rebuild or replace. T6 models with both turbo and supercharger see higher rates due to extreme cylinder pressures.
Estimated cost: $8,000-15,000
Transmission Oil Cooler Leaks (Aisin 8-speed)
Common · medium severityTypical onset: 50,000-90,000 mi
Symptoms: Transmission fluid dripping from bell housing area, Pink or red fluid pooling under vehicle, Harsh shifting or delayed engagement when leak becomes severe, Burning smell if fluid contacts exhaust
Fix: Replace internal transmission oil cooler and lines. Requires transmission drop or partial removal for access. 6-8 hours labor. Also recommend full fluid flush while you're in there.
Estimated cost: $1,200-2,200
Transmission Mount Failure
Common · low severityTypical onset: 40,000-80,000 mi
Symptoms: Clunking when shifting from Park to Drive or Reverse, Excessive vibration at idle in gear, Visible sagging or torn rubber on mount inspection, Driveline shudder during acceleration
Fix: Replace failed hydraulic transmission mount. The SPA platform uses a liquid-filled mount that fatigues faster than traditional rubber. 1.5-2 hours labor, straightforward job.
Estimated cost: $400-700
Fuel Filter Clogging (High-Pressure System)
Occasional · medium severityTypical onset: 70,000-120,000 mi
Symptoms: Hard starting, especially when engine is hot, Loss of power under load or at highway speeds, Rough idle and stumbling acceleration, Check engine light with fuel pressure or trim codes
Fix: Replace in-tank high-pressure fuel filter. Requires fuel tank drop or access through rear seat area depending on exact model variant. Often overlooked in maintenance schedules. 2-3 hours labor.
Estimated cost: $500-900
Sensus Infotainment Software Glitches
Common · low severitySymptoms: Touchscreen freezing or becoming unresponsive, Backup camera not displaying, Bluetooth connection dropping repeatedly, Climate control settings resetting or not responding
Fix: Software update at dealer using VIDA (Volvo diagnostic system). Most issues resolved with TSB updates. 0.5-1 hour labor. NHTSA recall ELECTRICAL SYSTEM:SOFTWARE addresses some of these issues.
Estimated cost: $100-200
Crankshaft Position Sensor Failure
Occasional · high severityTypical onset: 60,000-110,000 mi
Symptoms: No-start condition with intermittent cranking, Stalling while driving without warning, Extended cranking time before engine catches, Check engine light with crank sensor or correlation codes
Fix: Replace crankshaft position sensor. Access can be tight on the transversely-mounted engine. Sometimes requires removing starter or other components for clearance. 1.5-2.5 hours labor.
Estimated cost: $350-650
Buy one if you love the wagon practicality and Scandinavian luxury, but only with full service records showing religious oil changes, and budget for potential engine work — avoid high-mileage T6 models unless compression tested.
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.