Volvo S90 Years to AvoidThe weakest years — and the one you should buy instead
After reviewing every Volvo S90 we've analyzed (9 years), these are the 2 weakest. Each one has either an absolute low reliability score, chronic repair issues, or unusually high ownership costs relative to other S90 years.
Proceed with caution
2018 Volvo S90
The 2018 Volvo S90 offers an impressive blend of safety, luxury, and style, making it an attractive used executive sedan. While fundamentally well-built, its complex powertrains and sophisticated electronics can lead to expensive repair bills if not diligently maintained, pushing it into a 'proceed with caution' category for the budget-conscious buyer.
Why this year scores low
Software glitches, frozen screens, unresponsive touch interfaces, and sensor failures are common. While often resolvable with software updates or resets, underlying hardware issues can occur, leading to costly diagnostic and replacement procedures.
The supercharged and turbocharged 2.0L engines, especially with the hybrid T8 system, have more components to fail. Issues can range from PCV valve problems, supercharger clutch failures, or specific hybrid system sensor faults. Repairs require specialized knowledge and parts.
Models equipped with the optional rear air suspension are susceptible to leaks in air springs, compressor failures, or height sensor malfunctions. This can lead to uneven ride height, a harsh ride, or complete system failure, with replacement costs being significant.
Proceed with caution
2025 Volvo S90
The 2025 Volvo S90 offers an unparalleled blend of safety, Scandinavian luxury, and advanced technology. While its mature platform suggests foundational reliability, the integration of cutting-edge mild-hybrid powertrains and complex digital systems in a new model year means potential for early teething issues, requiring an attentive ownership approach.
Why this year scores low
The Google-based infotainment system, while powerful, can experience freezing, slow responses, or connectivity issues as the system matures. Advanced driver-assistance sensors (radar, cameras) may require software updates or recalibrations, particularly after minor impacts or in early production runs.
Integration of the 48V mild-hybrid system, including the integrated starter generator (ISG) and DC/DC converter, can be a source of emerging issues. Potential concerns include unexpected 'stop-start' system behavior, battery management system faults, or intermittent power delivery glitches as the system interacts with the conventional powertrain.
Early production units of new model years often encounter refined software mapping for the engine and transmission. This can manifest as rough idle, occasional hesitation during acceleration, or less-than-seamless gear changes, which are typically resolved through dealer software updates.