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

1991 BMW M5 Reliability ReportC+ grade · moderate risk · system-by-system breakdown

68/ 100

KeepScore

MODERATE RISK

Grade: C+

A thrilling, iconic analog performance sedan that richly rewards the invested enthusiast, but demands a significant financial and time commitment to stay roadworthy.

Full system breakdown + what I would do

Quick Facts · 1991 BMW M5

  • The system most likely to surface first: engine (s38b36) (major severity).
  • Has 3 NHTSA recalls on record — the most notable involves the wheels:hub.
  • Scores 4 points below the strongest nearby year — the 1989 BMW M5 earns a 72.

Is the 1991 BMW M5 Worth Buying?

The 1991 BMW M5 is a legendary performance sedan that can deliver exhilarating drives, but it demands meticulous maintenance and a significant budget to keep its complex S38 engine and bespoke components in top form; neglect will inevitably lead to costly and frustrating breakdowns. This is a car for the dedicated enthusiast, not the casual owner seeking affordable classic motoring.

Biggest Strengths

  • Exceptional driving dynamics and chassis rigidity
  • Robust Getrag 280 manual transmission (with proper care)
  • High-quality interior materials (when well-preserved)

What Tends to Fail First on the 1991 BMW M5

The systems that break first on the 1991 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.

1991 BMW M5 Recall History

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

WHEELS:HUB

SCREWS THAT ATTACH WHEEL COVERS ON ORIGINAL EQUIPMENT WHEELS WERE NOT FULLY TORQUED AND MAY GRADUALLY LOOSEN AND SEPARATE FROM WHEELS UNDER EXTREME DRIVING CONDITIONS.

AIR BAGS:FRONTAL

THE AIR BAG CONTACT RING LOCKING TAB LOCATED IN THE STEERING WHEEL ASSEMBLY CAN BREAK WITHOUT WARNING.

What breaks on the 1991 BMW M5?

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

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Other BMW M5 Years to Consider

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

1991 BMW M5 Alternatives

Similar class, similar year range — ranked by KeepScore.

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Frequently Asked Questions

Full Report

1991 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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