The 2017 S90 is built on Volvo's SPA platform with the Drive-E 4-cylinder engine family. While refined and comfortable, these early SPA cars suffer from drivetrain software gremlins, transmission cooler failures, and a shocking number of catastrophic engine failures tied to oil starvation and piston ring issues.
Catastrophic Engine Failure — Piston Ring / Oil Consumption
Occasional · high severityTypical onset: 40,000-80,000 mi
Symptoms: Excessive oil consumption (1 qt per 1,000 mi or worse), Blue smoke from exhaust on startup or acceleration, Loss of power, misfires, check engine light for multiple cylinder misfires, Complete engine seizure in severe cases
Fix: Piston ring issue leads to bore glazing and oil consumption. Repair requires complete engine rebuild or short block replacement. 20-30 labor hours for R&R and rebuild depending on damage extent. Some engines need full crankshaft, bearings, and piston replacement.
Estimated cost: $8,000-15,000
Transmission Oil Cooler Failure
Common · high severityTypical onset: 50,000-90,000 mi
Symptoms: Transmission fluid mixing with coolant (pink milkshake in overflow tank), Transmission slipping, harsh shifts, or delayed engagement, Overheating warnings on dashboard, Coolant loss with no visible leaks
Fix: Internal oil cooler fails and cross-contaminates fluids. Requires cooler replacement, complete transmission fluid flush (often multiple flushes), coolant system flush, and sometimes transmission rebuild if contamination was severe. 6-10 hours labor plus parts.
Estimated cost: $2,500-6,000
Transmission Mount Failure
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Clunking or thudding when shifting from Park to Drive or Reverse, Vibration at idle that changes when shifting into gear, Excessive driveline movement felt through chassis, Visible oil weeping from mount
Fix: Hydraulic transmission mount fails, typically the main mount on passenger side. Replacement is straightforward but requires supporting drivetrain. 2-3 hours labor.
Estimated cost: $600-1,200
Airbag and Seatbelt Module Software Faults
Occasional · high severitySymptoms: SRS airbag warning light illuminated, Seatbelt warning chime malfunction, Message: 'Airbag service urgent' on dash, Front seatbelt buckle sensor faults
Fix: Multiple recalls address software issues in airbag control module and seatbelt buckle assemblies. Most are software reflashes (1 hour), but buckle assembly replacement required in some cases (2-3 hours). Check recall status before buying.
Estimated cost: $0-800
Infotainment Sensus System Freezing / Rebooting
Common · low severitySymptoms: Center screen goes black and reboots randomly while driving, Touchscreen unresponsive or laggy, Climate control settings reset or malfunction, Backup camera fails to activate
Fix: Software bugs in early Sensus systems cause instability. Most fixed with software updates (1 hour), but some require control module replacement if hardware-related. Climate controls tied to screen make this more than just annoying.
Estimated cost: $150-1,500
High-Pressure Fuel Pump Failure
Occasional · high severityTypical onset: 70,000-110,000 mi
Symptoms: Extended cranking before starting, especially when warm, Rough idle and hesitation under acceleration, Check engine light for fuel pressure codes (P0087, P0088), Stalling at stops or during low-speed maneuvers
Fix: High-pressure fuel pump on the 2.0L Drive-E engines fails, sometimes contaminating fuel system. Requires pump replacement and fuel filter. 3-4 hours labor, located on engine.
Estimated cost: $1,200-2,000
Air Conditioning Compressor Clutch Failure
Occasional · medium severityTypical onset: 60,000-100,000 mi
Symptoms: AC blows warm air intermittently or completely, Clicking or grinding noise from engine bay when AC is on, AC works only at highway speeds, Compressor clutch not engaging (visible inspection)
Fix: AC compressor clutch or entire compressor fails. Covered by recall for some production dates. Replacement requires evacuate/recharge and 3-4 hours labor.
Estimated cost: $1,000-1,800
Beautiful car with Swedish luxury, but the engine failure risk and transmission cooler issues make this a hard pass unless you find one with documented engine replacement under warranty and confirmed recall completion.
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.