2009 BMW M5 Reliability ReportF grade · high risk · system-by-system breakdown
Quick Facts · 2009 BMW M5
- The system most likely to surface first: engine (s85 v10) (critical severity).
- Has 2 NHTSA recalls on record — the most notable involves the electrical system:12v/24v/48v battery:cables.
- Scores 7 points below the strongest nearby year — the 2008 BMW M5 earns a 42.
Is the 2009 BMW M5 Worth Buying?
The 2009 BMW M5, while offering exhilarating V10 performance, is a financial minefield for most buyers. Its bespoke engine and complex SMG transmission are prone to catastrophic failures, demanding an exceptionally large maintenance and repair budget. This is not a car to be purchased without significant financial reserves and a clear understanding of its inherent high-risk nature.
While undeniably a driver's car with an intoxicating engine, the 2009 BMW M5 represents an extremely high financial risk for potential owners. The almost certain major drivetrain failures will drain bank accounts and lead to significant ownership stress. Unless you are an experienced mechanic or possess a truly bott…
Best Model Years
All E60 M5 model years (2006-2010) share the fundamental design flaws of the S85 engine and SMG transmission. A later 2009 model may have some minor revisions, but the core risks remain.
Years to Avoid
All E60 M5 model years should be approached with extreme caution and only by buyers fully prepared for substantial financial commitment.
Biggest Strengths
- Legendary S85 V10 engine sound and power
- Exceptional driving dynamics and handling
- Luxurious interior with advanced features for its era
What Tends to Fail First on the 2009 BMW M5
The systems that tend to fail first on the 2009 BMW M5, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
The S85 V10 engine is notoriously prone to rod bearing failure, especially on earlier models, though issues persist into later years. The VANOS system (pump, lines, solenoids) is also a significant failure point, as are the throttle actu…
The SMG III automated manual transmission's hydraulic unit, specifically the pump motor and associated sensors, is a well-documented failure point. This leads to inability to shift gears, getting stuck in gear, or complete transmission f…
General BMW electrical gremlins are common, including iDrive system glitches, various sensor failures (camshaft position, oxygen, NOx), parasitic battery drain, and issues with the Electronic Damper Control (EDC) module. Troubleshooting…
2009 BMW M5 Mileage Danger Zones
The mileage windows when the 2009 BMW M5 most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Initial Service Zone
At this mileage, the M5 is likely past its initial break-in and may start experiencing early sensor failures or minor electrical gremlins that need attention. Expect high maintenance costs for fluid changes.
High-Risk Maintenance Zone
This is a critical period where many of the M5's notorious issues begin to manifest. Owners should anticipate significant repair bills for components known to fail around this mark.
Major Failure Probability Zone
Beyond 90,000 miles, the likelihood of major, highly expensive component failures drastically increases. Rod bearing failure becomes a substantial threat, alongside major SMG and VANOS issues.
Extreme Risk Zone
At this mileage, owning an M5 is for the truly dedicated enthusiast with a massive budget for repairs. Drivetrain components are nearing or past their expected lifespan, and reoccurring failures are common.
2009 BMW M5 Ownership Cost Outlook
What it typically costs to keep the 2009 BMW M5 on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$1,500-3,000 (excluding major repairs)
Moderate Repairs
$2,000-5,000 frequently, on top of routine maintenance
How Long Does the 2009 BMW M5 Last?
No mileage is truly 'safe' for the E60 M5; expect high-cost repairs at any point in its lifespan. Prioritize a vehicle with impeccable, detailed service records and documented preventative measures, regardless of mileage.
What 2009 BMW M5 Owners Actually Say
What Owners Love
- Incredible naturally aspirated V10 engine sound at high RPMs
- Exhilarating acceleration and top-end performance
- Precise steering and engaging handling characteristics
- Comfortable and luxurious cabin for long distances
Common Frustrations
- Astronomical repair costs for critical engine and transmission failures
- Frustrating SMG transmission quirks and potential for sudden failure
- Dismal fuel economy, often single-digit MPG in spirited driving
- Constant worry about potential catastrophic breakdowns
Who Should Buy the 2009 BMW M5?
Best For
- Hardcore BMW enthusiasts with deep pockets and an understanding of the risks
- Experienced DIY mechanics capable of tackling complex engine/transmission work
- Collectors seeking a specific, iconic V10 experience willing to invest heavily
Not Ideal For
- Budget-conscious buyers seeking reliable daily transportation
- Anyone without substantial emergency funds specifically for car repairs
How the 2009 BMW M5 Compares to Rivals
The E60 M5's S85 V10 engine stands out as particularly problematic, making it a higher risk than most of its direct competitors, many of which also have their own costly issues but rarely at the same frequency or severity.
More Reliable Than
- No direct competitors are reliably worse in terms of overall long-term ownership costs or major failure rates in this segment.
Comparable To
- Mercedes-Benz E63 AMG (W211 - M156 engine head bolt/lifter issues)
- Audi RS6 (C6 - V10 twin-turbo engine complexity/carbon buildup)
2009 BMW M5 Recall History
2 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
BMW IS RECALLING CERTAIN MODEL YEAR 2004-2010 5-SERIES, MODEL YEAR 2004-2010 6-SERIES, MODEL YEAR 2006-2010 M5, AND MODEL YEAR 2007-2010 M6 VEHICLES. THE INSULATED BULKHEAD CONNECTOR FOR THE POSITIVE BATTERY CABLE MAY HAVE BEEN INCORRECTLY ATTACHED TO THE TRUNK FLOOR PANEL, WHICH CAN LEAD TO A LOOSENING OF THE BOLT CONNECTION. AS IT LOOSENS, AN INCREASE IN ELECTRICAL RESISTANCE AT THIS CABLE CONNECTION IS POSSIBLE AND COULD CAUSE THE CABLE CONNECTION TO OVERHEAT.
EXTERIOR LIGHTING:TAIL LIGHTS
BMW is recalling certain model year 2008 through 2010 528i, 535i, 550i, and M5 passenger cars manufactured from March 1, 2007, through December 31, 2009. Over time, increased resistance at the taillight electrical contact points may cause damage to the ground terminal and housing of the connector resulting in an intermittent or permanent loss of functionality of one or more rear lamp functions (tail, brake, turn-signal, reverse).
What breaks on the 2009 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.
2009 BMW M5 Alternatives
Similar class, similar year range — ranked by KeepScore.
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Frequently Asked Questions
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