Bmw M5 ReliabilityAll Years Ranked (1988–2025)
Side-by-side reliability scores, risk levels, and owner-cost projections for every Bmw M5 we've analyzed. Identify the best years to buy, the ones to avoid, and the problems that follow the M5 across generations.
Average Score
63/100
Best Year
2018 Bmw M5
Score 78
Weakest Year
2005 Bmw M5
Score 35
Every Bmw M5 Ranked
Sorted by reliability score. Each link opens the full year-specific report.
A beast of a machine that requires a significant budget and proactive ownership to truly thrive.
Top risks: Engine Gaskets & Seals · Electronic Modules & Sensors · Adaptive Suspension Components
A truly exhilarating machine, but its peak performance comes with a peak price for long-term care and potential repairs.
Top risks: High-Pressure Fuel System · Adaptive M Suspension Components · Cooling System and Turbocharger Components
An engineering marvel demanding serious financial upkeep to deliver its legendary performance reliably.
Top risks: High-Pressure Fuel System · Adaptive Suspension (EDC) · Complex Electrical Systems
A precision German missile that delivers immense thrills but demands a substantial and ongoing financial commitment for its upkeep.
Top risks: Cooling System · Adaptive Suspension & Bushings · Advanced Electronics / iDrive
A performance titan with a strong foundation, but expect a premium on all aspects of ownership and maintenance.
Top risks: Engine Ancillaries & Cooling System · Advanced Electronics & Infotainment · Adaptive Suspension & Steering
A magnificent machine that rewards the driver immensely, but demands an equally magnificent budget for its meticulous care and feeding.
Top risks: Engine Ancillaries (S63 V8) · Adaptive Suspension & Steering · Electrical & Infotainment
A high-performance classic that demands significant, consistent investment to maintain its legendary status.
Top risks: Engine Valvetrain & Timing · Cooling System · Suspension & Steering Components
An incredible driver's machine that demands meticulous maintenance and a healthy repair fund.
Top risks: Engine VANOS System · Engine Rod Bearings · Electrical & Sensors
Unleash exhilarating power, but be prepared for the significant commitment of ownership.
Top risks: Engine Oil Management & Seals · Advanced Electronics & Sensors · Adaptive Suspension Components
A thrilling, iconic analog performance sedan that richly rewards the invested enthusiast, but demands a significant financial and time commitment to stay roadworthy.
Top risks: Engine (S38B36) · Electrical System · Suspension & Steering
A legendary driver's machine that demands deep pockets and a genuine passion for classic BMW ownership.
Top risks: S38B38 Engine Internals & VANOS · EDC III Electronic Damping Control · Electrical System & Wiring
A legendary performance machine that offers immense joy, provided you're prepared for the significant financial commitment of its upkeep.
Top risks: S62 Engine VANOS System · Cooling System Components · Front Suspension & Steering
An iconic V8 sedan that rewards owners willing to invest significantly in its meticulous care.
Top risks: VANOS System · Cooling System · Suspension & Steering Components
An enthusiast's dream that demands a significant and consistent budget for specialist care to maintain its legendary status.
Top risks: VANOS System · Engine Rod Bearings · Cooling System
An exhilarating supercar disguised as a sedan, demanding a premium price for both purchase and meticulous, ongoing care.
Top risks: S63Tu Engine Ancillaries · Electrical & Sensor Malfunctions · Drivetrain Component Wear
A supercar in a suit, the M5 offers incredible performance, but its complex systems and high-strung nature demand consistent, expensive care to remain reliable.
Top risks: S63TU Engine (Fuel & Ignition) · 7-Speed M-DCT Transmission · Electrical & Sensors
A beast on the road, but prepare for an equally beastly maintenance ledger.
Top risks: Hybrid Powertrain & High-Voltage System · Adaptive Suspension & Active Chassis Systems · Engine Cooling System & Turbochargers
A truly iconic performance machine that delivers immense driving satisfaction, but only to those prepared for its demanding and potentially costly maintenance regime.
Top risks: S38 Engine Valvetrain & Timing · Electrical System · Suspension & Steering Components
A thrilling, analog M-car experience that demands substantial financial and time investment to keep running properly.
Top risks: Engine Management & Fuel System · Suspension & Steering Components · Electrical System & Wiring
A high-performance icon, the E39 M5 delivers thrill for those who embrace its demanding and costly upkeep.
Top risks: VANOS System · Cooling System · Suspension & Steering Components
A truly exhilarating machine, but its thrilling performance comes with the very real threat of devastating repair costs and chronic reliability challenges.
Top risks: S63Tü Engine · M-DCT Transmission · Electrical/Electronics
A thrilling analogue driving machine that demands a deep financial commitment and mechanical understanding from its owner.
Top risks: Engine (S38B36) · Electrical System · Suspension & Steering
An iconic analog performance sedan that demands consistent, expensive care and an educated owner to avoid financial ruin.
Top risks: Engine (S38B36) · Suspension & Steering · Electrical Systems
An analog driving dream, but a demanding mistress for your wallet and garage time, requiring an owner with deep pockets and a passion for proactivity.
Top risks: Engine (S38B36/S38B38) · Suspension & Steering · Electrical System
A high-performance legend, the E39 M5 requires deep pockets and dedicated maintenance to remain glorious, not ruinous.
Top risks: VANOS System · Cooling System · Electrical / Sensor Failures
An ultimate driving machine that delivers thrills, but only to those prepared for its significant financial demands.
Top risks: S62 Engine Internals & VANOS · Cooling System · Electrical & Electronics
Unparalleled performance comes with a serious, ongoing financial commitment.
Top risks: Engine (S63Tü Twin-Turbo V8) · Transmission (7-Speed M DCT) · Electronic Damper Control (EDC) Suspension
An iconic driver's car with a glorious engine, but owning it requires dedication and a substantial maintenance budget.
Top risks: S62 Engine Internals/Ancillaries · Suspension & Steering Components · Electrical System
A high-performance marvel with an exotic car's temperamental nature and repair costs.
Top risks: Engine (S85 V10) · Transmission (SMG III) · Electrical / Electronics
An utterly thrilling machine that demands a robust bank account and a high tolerance for risk.
Top risks: Engine (S63Tü V8) · Driveline (M-DCT Transmission) · Electrical & Electronics
A dream to drive, a nightmare to neglect, the E34 M5 demands constant vigilance and significant financial investment.
Top risks: S38B38 Engine Internals & Ancillaries · Suspension & Steering Systems · Electrical & HVAC Systems
An intoxicating performance machine demanding an exceptionally high and frequent financial commitment.
Top risks: Engine (S85 V10) Rod Bearings · SMG III Transmission Hydraulic Pump · VANOS System Components
A thrilling, yet financially perilous, ownership experience reserved exclusively for enthusiasts with deep pockets and a strong mechanical aptitude.
Top risks: S85 V10 Engine (Rod Bearings) · S85 V10 Engine (VANOS System) · SMG III Transmission (Hydraulic Pump)
A thrilling beast that demands an uncompromising financial commitment and mechanical expertise to keep running.
Top risks: S85 Engine Internal Components · SMG III Transmission System · Electrical and iDrive System
An iconic performance sedan that promises thrills but often delivers financial heartache due to multiple critical system failures.
Top risks: Engine (S85 V10) · SMG Transmission (7-speed) · Electrical/Electronic Systems
A dream to drive, a nightmare to own without a substantial, dedicated maintenance fund.
Top risks: S85 V10 Engine · SMG III Transmission · Electrical System
Problems That Follow the M5 Across Generations
Issues that appear in the top-3 risks across multiple model years — the cost of ownership you can actually predict.
Cooling System
Appears in 7 model years · 19% of generations
Electrical System
Appears in 6 model years · 17% of generations
Suspension & Steering Components
Appears in 6 model years · 17% of generations
Suspension & Steering
Appears in 4 model years · 11% of generations
VANOS System
Appears in 4 model years · 11% of generations
Engine (S38B36)
Appears in 3 model years · 8% of generations
Electrical System & Wiring
Appears in 2 model years · 6% of generations
Electrical & Electronics
Appears in 2 model years · 6% of generations