The Good
The 2006 M6 offers breathtaking performance from its high-revving V10, an emotionally resonant engine. Its sleek, controversial Bangle-era design still turns heads. For practical buyers, it's a grand tourer with reasonable comfort for long drives, high-quality interior materials, and a sense of exclusivity, representing a strong performance value in the used market despite its initial high cost.
The Bad
Known weaknesses of the 2006 M6 primarily revolve around its complex V10 engine and SMG transmission. High maintenance costs, particularly for rod bearings and SMG pump failures, are significant concerns. Fuel economy is poor, and some owners find the SMG's automatic mode clunky. Electronic issues, while less common, can also arise.
2006 BMW M6: Quick Overview
The 2006 BMW M6 is a performance-focused grand touring coupe. Here are its key specifications and features:
- Engine: The M6 features one primary engine option, an iconic 5.0-liter (S85) naturally aspirated V10 engine. This high-revving engine was shared with the E60 M5 and is celebrated for its unique sound and power delivery.
- Horsepower: The V10 engine produces a robust 500 horsepower (373 kW) at 7,750 rpm and 383 lb-ft (519 Nm) of torque at 6,100 rpm. It features BMW's VANOS variable valve timing system.
- Transmission: Power is sent to the rear wheels via a 7-speed SMG III sequential manual gearbox, known for its rapid shifts. A conventional 6-speed manual transmission became available in later model years, but was not offered on the 2006 M6 in most markets.
- Fuel Economy: Given its performance focus, fuel economy is not a strong suit. EPA estimates for the 2006 M6 typically stood around 11 MPG in the city and 17 MPG on the highway, with a combined rating of 13 MPG.
- 0-60 MPH Times: The M6 is blistering fast, capable of accelerating from 0-60 mph in approximately 4.1-4.4 seconds, depending on conditions and launch technique.
- Towing Capacity: The BMW M6 is not designed or rated for towing, and no official towing capacity is specified for this high-performance vehicle.
- Trim-Level Features: The M6 essentially came in one high-performance trim level, packed with premium features. Key features included:
- Carbon fiber roof (coupe only) for weight reduction and a lower center of gravity.
- M-specific sport suspension, M differential, and M Servotronic steering.
- 19-inch M light alloy wheels with performance tires.
- Full Merino leather upholstery.
- Heated, power-adjustable M sport seats.
- Logic7 premium audio system.
- iDrive infotainment system with navigation.
- Head-Up Display (HUD) was an available option.
- Dynamic Stability Control (DSC) with M Dynamic Mode.
- M Drive button for customizable engine, suspension, and steering settings.
- Bi-xenon headlights.
- Park Distance Control (PDC) front and rear.
2006 BMW M6 Specifications
Vehicle Information
| Year | 2006 |
| Make | BMW |
| Model | M6 |
| Trim | - |
| Style | Coupe Rear-Wheel Drive |
| Type | Coupe |
| Category | Subcompact Car |
Manufacturing Details
| Made In | Germany |
| Manufacturing City | DINGOLFING |
Dimensions
| Doors | 2-Door |
| Curb Weight | 1773.09 kg |
| Gross Vehicle Weight Rating | 2199.92 kg |
| Overall Height | 137.16 cm |
| Overall Length | 487.17 cm |
| Overall Width | 185.42 cm |
| Wheelbase Length | 278.13 cm |
| Standard Seating | 4 |
Engine & Performance
| Engine | 5.0-L V10 |
| Engine Size | 5L |
| Engine Cylinders | 10 |
| Transmission | Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | - |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $96,100 USD |
| Invoice Price | $87,630 USD |
| Delivery Charges | $695 USD |
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Analysis
What Problems Does the 2006 BMW M6 Have?
Engine Issues (S85 V10):
- Rod Bearing Failure: This is perhaps the most infamous and costly issue. The rod bearings in the S85 engine are prone to premature wear, which can lead to catastrophic engine failure if not addressed proactively. It's a concern across all S85-equipped M cars, including the 2006 M6. Many owners opt for preventative replacement.
- VANOS System Failure: The Variable Valve Timing (VANOS) system, particularly the high-pressure VANOS pump, can fail. Symptoms include rough idling, reduced power, and specific fault codes. Repair can be expensive.
- Throttle Actuator Failure: The electronic throttle actuators can fail, leading to reduced engine power and "limp mode."
- Oil Consumption: The V10 engine is known to consume oil at a higher rate than typical engines, requiring owners to regularly check and top off oil levels.
Transmission Issues (SMG III):
- SMG Hydraulic Pump Failure: The hydraulic unit that powers the SMG transmission is a common point of failure. When it fails, the car cannot engage gears, essentially stranding the vehicle. This is a very expensive repair.
- Clutch Wear: While not a defect, aggressive driving or frequent city driving can lead to accelerated clutch wear in SMG-equipped cars, necessitating costly replacements.
Other Concerns:
- Electrical/Electronic Gremlins: Like many complex German luxury cars, the M6 can experience various electrical issues, from iDrive malfunctions to sensor failures.
- Suspension Components: Over time, components like control arm bushings and shock absorbers will wear out, especially given the car's weight and performance capabilities.
- High Maintenance Costs: Due to the complexity and specialized nature of its components, parts and labor for the M6 are significantly more expensive than average.
Recalls: For the 2006 BMW M6, some notable recalls included:
- Airbag Recalls: Like many vehicles of its era, the M6 was subject to the widespread Takata airbag inflator recalls.
- Fuel Pump Recalls: There have been recalls concerning the fuel pump, which could lead to fuel leaks or engine stalling.
Prospective buyers should ensure all relevant recalls have been addressed and budget significantly for preventative maintenance and potential repairs, especially for the rod bearings and SMG pump.
How long will the 2006 BMW M6 last?
What Technology & Safety Features are Included?
Built-in Tech & Entertainment:
- iDrive Infotainment System: The M6 featured BMW's second-generation iDrive system, which controlled navigation, climate, audio, and communication functions via a central rotary controller and a dash-mounted screen. While criticized for its complexity upon release, it was a state-of-the-art interface.
- Navigation System: A DVD-based navigation system was integrated into the iDrive unit, providing directions and points of interest.
- Logic7 Premium Audio System: A high-fidelity Harman Kardon Logic7 surround sound system was standard, offering excellent sound quality with multiple speakers and a powerful amplifier.
- Bluetooth Connectivity: Hands-free Bluetooth phone integration was available, allowing drivers to make and receive calls.
- CD Changer: A multi-disc CD changer was typically found in the glovebox or trunk.
- Auxiliary Input: While not always standard, an auxiliary audio input for external devices was often an option or could be retrofitted.
Driver-Assistance Features:
- Park Distance Control (PDC): Front and rear parking sensors were standard, providing audible warnings as the vehicle approached obstacles.
- Head-Up Display (HUD): An advanced optional feature, the HUD projected key information like speed, navigation directions, and gear selection onto the windshield, directly in the driver's line of sight.
- Dynamic Stability Control (DSC): Standard, this system included traction control, ABS, and cornering brake control. It featured an "M Dynamic Mode" (MDM) which allowed for a greater slip angle before intervening, catering to enthusiastic driving.
- Cruise Control: Standard cruise control was included. Adaptive cruise control (Active Cruise Control) was not typically offered on the M6 of this year.
Safety Features:
- Airbags: Comprehensive airbag system including dual-stage front airbags, front seat-mounted side airbags, and front and rear head protection airbags (curtain airbags).
- Anti-lock Braking System (ABS): Standard, with powerful M-specific brakes.
- Brake Fade Compensation: Part of the advanced braking system, designed to maintain braking performance even under repeated heavy use.
- High-Intensity Discharge (HID) Bi-Xenon Headlights: Provided superior illumination.
- Tire Pressure Monitoring System (TPMS): Monitored tire pressure and alerted the driver to low pressure.
Crash-Test Ratings: Independent crash-test ratings (e.g., from NHTSA or IIHS) are not readily available specifically for the 2006 BMW M6. As a low-volume, high-performance luxury vehicle, it was not typically subjected to the same standardized testing as mass-market cars. However, BMW vehicles generally boast strong safety engineering, and the 6 Series platform on which the M6 is based received good safety marks in European tests for occupant protection.
What Colors Options are Available?
2006 BMW M6 Prices and Market Value
2006 BMW M6 Cost of Ownership
2006 BMW M6 Fuel Efficiency
2006 BMW M6 Safety Rating
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reasonable repair costs.
How Does the 2006 BMW M6 Compare to Other Coupe?
Performance: The M6's 500hp V10 was a showstopper, offering sensational high-revving power that few could match. It generally outperformed the naturally aspirated Porsche 997 Carrera S in straight-line speed, though the 911 offered superior agility and a more engaging manual gearbox experience. The Mercedes CL63 AMG (if comparing the W215/C215 CL55 AMG, as the CL63 with the M156 engine arrived later) offered massive torque from its supercharged V8, providing a different, more relaxed but potent power delivery. The M6's SMG was faster shifting than the traditional automatics of its Benz rivals.
Features: The M6 was loaded with luxury and technology for its time, including iDrive, premium audio, and unique M-specific performance settings. It generally offered a more driver-focused cockpit than the Mercedes CL and arguably more everyday usability than an Aston Martin V8 Vantage. The 911 focused more on driving purity, with a less lavish interior but higher build quality.
Reliability: This is where the M6 faces its biggest challenge against rivals. Its notorious rod bearing and SMG pump issues make it significantly less reliable and more costly to maintain than a contemporary Porsche 911 (though 997s had their own IMS bearing concerns, these were often less widespread or catastrophic than the S85's rod bearings). The Mercedes CL models, while complex, generally didn't have such widespread, high-cost critical engine failures. The M6 demands a substantial maintenance budget.
Price: When new, the M6 was competitively priced against its European rivals. In the used market today, the M6 often offers more horsepower per dollar than a comparable Porsche 911 or Aston Martin, but this lower purchase price is offset by its higher running costs.
Similar/Better Alternatives:
- For raw performance and better reliability: A used Porsche 911 (997) Carrera S or even a 997 Turbo would be a more robust and engaging driver's car, albeit with potentially higher initial purchase prices.
- For luxury and a more comfortable grand touring experience with a traditional automatic: A Mercedes-Benz CL55 AMG (W215/C215) or a later CL63 AMG (C216) offers a more serene and arguably less problematic ownership experience, though still costly.
- For a manual transmission and iconic V8 sound: The Aston Martin V8 Vantage provides immense character and exclusivity, though also comes with significant maintenance costs.
The M6 is for those who specifically desire the V10 engine's character and are prepared for its unique ownership demands.