Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

1990 BMW M5 Reliability ReportKeepScore 62/100 · top failure points · buy or avoid

62/ 100

KeepScore

HIGH RISK

Grade: D+

A thrilling analogue driving machine that demands a deep financial commitment and mechanical understanding from its owner.

Full system breakdown + what I would do

Quick Facts · 1990 BMW M5

  • Scores 10 points below the strongest nearby year — the 1989 BMW M5 earns a 72.
  • The system most likely to surface first: engine (s38b36) (major severity).
  • Has 1 NHTSA recall on record — the most notable involves the engine and engine cooling:cooling system.

1990 BMW M5: Buy or Avoid?

The 1990 BMW M5 is a highly desirable performance classic, but it comes with a significant reliability caveat due to its age and high-performance nature. Expect substantial investment in maintenance and repairs; this is not a car for the faint of heart or light of wallet. Ownership is a labor of love, requiring commitment to truly enjoy its legendary driving dynamics.

Biggest Strengths

  • Robust S38B36 engine (if meticulously maintained)
  • Excellent Getrag 280 manual transmission durability
  • Timeless design and outstanding driving dynamics

1990 BMW M5 — Known Trouble Spots

The systems that break first on the 1990 BMW M5. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

1
Engine (S38B36)major
2
Electrical Systemmoderate
3
Suspension & Steeringmoderate
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

Safety Recalls on the 1990 BMW M5

1 recall on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

ENGINE AND ENGINE COOLING:COOLING SYSTEM

VEHICLE DESCRIPTION: PASSENGER VEHICLES. A MALFUNCTION OR FAILURE OF A COOLANT SYSTEM COMPONENT, SUCH AS A THERMOSTAT, WATER PUMP, OR FAN BELT, CAN RESULT IN SIGNIFICANTLY INCREASED COOLANT TEMPERATURE AND SYSTEM PRESSURE. IF THE INDICATIONS OF A CRITICAL OVERHEATING CONDITION IS NOT NOTICED BY THE DRIVER, IT IS POSSIBLE THAT DAMAGE TO, OR FAILURE OF, A COOLANT SYSTEM COMPONENT COULD OCCUR.

What breaks on the 1990 BMW M5?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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BMW M5 — Year-by-Year Comparison

Compare KeepScores across nearby years of the BMW M5. Click any year for its full report.

Competing 1990s Worth a Look

Similar class, similar year range — ranked by KeepScore.

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Frequently Asked Questions

Full Report

1990 BMW M5

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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Final Step

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