2008 Bmw M5 Specs​ – Unpacking The E60 V10 Super Sedan’S Enduring

ByRobert Lozano

The 2008 BMW M5 (E60 generation) is a revered high-performance sedan, famous for its naturally aspirated S85 V10 engine and Formula 1-inspired engineering. Understanding its precise specifications is crucial for any owner or enthusiast looking to maintain, modify, or simply appreciate this automotive icon. Dive in to discover what makes this M5 a true legend.

You’re here because you know the name: BMW M5. But not just any M5 – the legendary E60 generation, specifically the 2008 model. This beast of a sedan, with its screaming V10 engine, captured the hearts of enthusiasts worldwide and remains a highly sought-after performance car.

At EngineNeeds, we understand that for many, the 2008 BMW M5 isn’t just a car; it’s a statement, a passion, and sometimes, a challenging project. Whether you’re a proud owner, a prospective buyer, or simply an admirer, delving into the precise 2008 bmw m5 specs​ is the first step to truly appreciating its engineering marvels and understanding its unique demands.

This comprehensive guide will break down every critical specification, from its potent powertrain to its sophisticated chassis, helping you navigate the complexities of this magnificent machine. We’ll also touch on practical ownership insights, ensuring you have the knowledge to keep your M5 running at its peak.

The Heart of the Beast: S85 V10 Engine Specs

The undisputed star of the 2008 BMW M5 is its S85B50 engine. This naturally aspirated V10 powerhouse was a direct descendant of BMW’s Formula 1 engine program, delivering an intoxicating soundtrack and relentless acceleration.

It’s not just about raw power; it’s about the engineering behind it. Understanding these fundamental engine specs is vital for any owner, especially when it comes to diagnostics or performance upgrades.

Here’s a closer look at what makes the S85 tick:

  • Engine Type: S85B50, naturally aspirated V10.
  • Displacement: 4,999 cc (5.0 liters).
  • Horsepower: 500 hp (373 kW) at 7,750 rpm.
  • Torque: 384 lb-ft (520 Nm) at 6,100 rpm.
  • Redline: A thrilling 8,250 rpm.
  • Compression Ratio: 12.0:1.
  • Valvetrain: DOHC (Double Overhead Camshaft) with 4 valves per cylinder and Double-VANOS variable valve timing.
  • Fuel System: Multi-point sequential fuel injection, featuring individual throttle bodies for each cylinder.

Common S85 Engine Concerns for DIYers

While incredible, the S85 V10 has its known quirks. DIY mechanics should be aware of potential issues like rod bearing wear, VANOS pump failure, and throttle actuator problems.

Regular oil analysis and listening for unusual engine noises can provide early warnings. Always use the specified 10W-60 synthetic engine oil, like Castrol TWS Motorsport, for optimal protection.

Power Delivery: SMG III Transmission and Drivetrain

Mating to the S85 V10 is BMW’s third-generation Sequential Manual Gearbox (SMG III). This 7-speed automated manual transmission was cutting-edge for its time, offering lightning-fast shifts and multiple driving modes.

The SMG III is a sophisticated piece of equipment that truly defines the M5’s character. It offers eleven different shift programs, six for automatic (D) mode and five for manual (S) mode, including a launch control feature.

  • Transmission Type: 7-speed SMG III automated manual.
  • Clutch: Single dry plate clutch.
  • Driveline: Rear-wheel drive (RWD).
  • Differential: M Variable Differential Lock.
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Mastering the SMG III for Longevity

Operating the SMG III smoothly is key to its longevity. Avoid aggressive “clutch-dumping” starts outside of track use, and ensure timely fluid changes using specific BMW SMG hydraulic fluid.

Many owners choose to perform annual adaptations or resets using diagnostic tools like INPA or ISTA/D to maintain optimal shift quality. If you notice hesitant shifts or warning lights, a professional diagnosis is highly recommended.

Chassis, Suspension, and Handling Prowess

The 2008 M5 wasn’t just about straight-line speed; it was designed to be a formidable handler. Its sophisticated chassis and suspension setup allowed it to corner with impressive precision for a large sedan.

BMW engineered a complex system to balance ride comfort with dynamic handling. This involved a multi-link rear axle and a double-pivot front suspension, along with adaptive damping.

  • Front Suspension: Double-pivot spring-strut axle, M-specific kinematics.
  • Rear Suspension: Integral multi-link axle, M-specific kinematics.
  • Damping System: Electronic Damper Control (EDC) with three modes (Comfort, Normal, Sport).
  • Steering: M Servotronic variable-ratio power steering.
  • Stability Control: Dynamic Stability Control (DSC) with M Dynamic Mode (MDM).
  • Wheels: Standard 19-inch M light-alloy wheels (e.g., Style 166).
  • Tires: Front: 255/40 ZR 19; Rear: 285/35 ZR 19 (specific run-flat or non-run-flat may vary).

Maintaining Your M5’s Ride Quality

For DIYers, regularly inspect suspension components like control arm bushings, sway bar links, and shock absorbers. Worn components can severely degrade the M5’s renowned handling and lead to uneven tire wear.

Always ensure tire pressures are set according to BMW’s recommendations, usually found on a sticker inside the driver’s door jamb. Consider a four-wheel alignment after any major suspension work to preserve tire life and handling precision.

Braking Performance: Bringing the Power to a Halt

With 500 horsepower on tap, the 2008 BMW M5 needed equally impressive stopping power. BMW equipped it with a high-performance compound braking system designed for repeated hard use.

These brakes are specifically engineered to dissipate heat effectively, preventing fade during spirited driving or track days. Understanding their specifications is key to proper maintenance and replacement.

  • Front Brakes: Vented and cross-drilled compound discs, 374 mm (14.7 inches) diameter, 6-piston calipers.
  • Rear Brakes: Vented and cross-drilled compound discs, 370 mm (14.6 inches) diameter, 2-piston calipers.
  • Brake Fluid: DOT 4.

DIY Brake Maintenance Tips

When performing brake service, always use high-quality, M-specific brake pads and rotors. Cheaper alternatives can compromise performance and safety. Bleed the brake lines thoroughly after replacing calipers or opening the hydraulic system.

Check brake fluid levels regularly and flush the system every two years, as brake fluid is hygroscopic and absorbs moisture over time. This helps prevent corrosion and maintains pedal feel.

Interior Comfort, Technology, and Dimensions

Beyond its performance credentials, the 2008 M5 also offered a luxurious and technologically advanced cabin. It was designed to be a comfortable grand tourer as much as a track weapon.

From the ergonomic M sport seats to the iDrive infotainment system, the interior was packed with features aimed at driver engagement and passenger comfort. Its dimensions also play a role in its road presence and practicality.

  • Seating Capacity: 5 passengers.
  • Interior Features: Standard M sport seats, Merino leather upholstery, iDrive infotainment system, optional Head-Up Display (HUD), optional heated seats, carbon fiber or wood trim options.
  • Overall Length: 191.5 inches (4,864 mm).
  • Width: 72.7 inches (1,846 mm).
  • Height: 57.8 inches (1,468 mm).
  • Wheelbase: 113.7 inches (2,888 mm).
  • Curb Weight: Approximately 4,035 lbs (1,830 kg).
  • Fuel Tank Capacity: 18.5 gallons (70 liters).
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Interior Care and Tech Troubleshooting

Maintaining the interior involves regular cleaning and conditioning of leather surfaces to prevent cracking. For the iDrive system, sometimes a simple reset (holding the volume knob down for 30 seconds) can resolve minor glitches.

Always consult your owner’s manual for specific troubleshooting steps for electronic systems. If you’re dealing with persistent electrical issues, a professional diagnostic tool that can read BMW-specific fault codes is invaluable.

Understanding 2008 BMW M5 Specs: Key Maintenance Considerations

Owning a 2008 BMW M5 is a rewarding experience, but it comes with responsibilities. Its high-performance nature means that specific maintenance schedules and practices are critical for longevity and performance.

Neglecting these can lead to costly repairs and diminished driving pleasure. Knowing the critical 2008 bmw m5 specs​ for service intervals and fluid types is your first line of defense against common issues.

  1. Oil Changes: The S85 V10 is sensitive to oil quality and level. Perform oil and filter changes every 5,000-7,500 miles, or annually, using only BMW-approved 10W-60 synthetic oil. Always check the oil level via the iDrive system, not a dipstick.
  2. SMG Fluid Service: The SMG hydraulic unit requires specific fluid (Pentosin CHF 11S) and should be checked periodically. Some enthusiasts recommend a full flush every 30,000-50,000 miles, along with a filter change if applicable.
  3. Differential Fluid: The M variable differential lock uses a specific fluid (e.g., Castrol SAF-XJ + FM Booster). This should be replaced according to BMW’s maintenance schedule, typically around 30,000-60,000 miles.
  4. Spark Plugs: Due to the high compression and revving nature of the V10, spark plugs are a critical maintenance item. Replace them every 30,000-40,000 miles with genuine BMW or OEM equivalent plugs.
  5. Air Filters: Inspect and replace engine air filters regularly, especially if you drive in dusty conditions. Clean air filters are essential for optimal engine performance and fuel economy.
  6. Coolant System: Use BMW-approved coolant (blue, phosphate-free) mixed with distilled water. Check the coolant level regularly and perform a system flush every 3-4 years to prevent corrosion and maintain cooling efficiency.
  7. Pre-Purchase Inspection (PPI): For prospective buyers, a thorough PPI by a BMW M specialist is non-negotiable. This will uncover potential issues like rod bearing wear, SMG pump health, and VANOS solenoid condition, which are critical to the car’s overall health and value.

When to Call a Pro for Your M5

While many maintenance tasks can be handled by a capable DIYer, certain repairs on the E60 M5 demand professional expertise. Complex engine diagnostics, SMG pump replacement, rod bearing jobs, or major electrical issues are best left to licensed BMW specialists.

Always prioritize safety. If you’re unsure about a procedure or lack the proper specialized tools (like a BMW diagnostic scanner), don’t hesitate to seek expert help. It can save you significant time, money, and potential damage in the long run.

Frequently Asked Questions About 2008 BMW M5 Specs

What is the horsepower of the 2008 BMW M5?

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Robert Lozano
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