10 BMW M6 Problems and Common Issues Revealed and Simple Solutions

Patrick Oziegbe
Updated On:

If you’re looking into the BMW M6, it’s essential to be aware of some common problems that owners have faced.

The M6, while a fantastic vehicle, can have its share of issues, just like any other car.

From engine troubles to reliability concerns, it’s important to know what potential problems might be ahead for your BMW M6.

Armed with this information, you can make an informed decision and properly maintain your vehicle to prevent or address these common issues.

Common Engine Problems

Rod Bearing Issues

One issue you might encounter with your BMW M6 is rod bearing failure. This problem can lead to catastrophic engine failure if not addressed early on.

Signs of rod bearing issues in your M6 include a ticking sound, metal shavings in your oil, and increased engine noise.

To prevent rod bearing failure and improve the reliability of your engine, consider having regular oil analyses and listening for any abnormal noises.

Limp Mode

Limp mode is another potential issue for your BMW M6, especially in models with the V8 engine. This mode limits the car’s performance to protect the engine from damage, reducing power and torque.

Some common causes of limp mode include faulty sensors, wiring issues, and problems with the turbo system. If your M6 enters limp mode, diagnose the problem as soon as possible to avoid further damage.

High-Revving V10 Issues

The BMW S85 V10 engine found in older M6 models is known for its high-revving nature, which can also be a source of engine problems.

Issues related to the high-revving nature of the S85 engine include stretched timing chains and VANOS solenoid malfunctions. Regular engine maintenance is essential to prevent these problems and keep your high-revving V10 running smoothly.

Oil Consumption

Your BMW M6 might also experience excessive oil consumption. High oil consumption increases the risk of engine failure and affects the overall performance of your vehicle.

Causes include worn valve seals and leaking gaskets. Keep an eye on your oil levels and carry out regular maintenance to minimize the risk of oil consumption issues.

Transmission and Drivetrain Issues

One of the common problems you might encounter in your BMW M6 is related to its transmission and drivetrain system.

This section will discuss the SMG transmission problems, which can help you identify and address the issues you may face.

SMG Transmission Problems

The BMW M6 is equipped with an SMG (Sequential Manual Gearbox) transmission, which gives you the convenience of automatic shifting with the control of a manual gearbox.

However, this system can experience some problems, such as:

Gear shifting issues:

You may face difficulty when shifting gears, causing the transmission to get stuck or refusing to shift gears altogether. This issue might indicate a software malfunction or mechanical failure within the SMG system.

Warning messages and fault codes:

Your BMW M6 may display warning messages, such as “transmission malfunction” or “drivetrain malfunction”, pointing towards a problem with the transmission system.

You can use a diagnostic tool to read any fault codes related to the SMG transmission and identify the root cause of the issue.

Vibration or rough idling:

If your BMW M6 experiences constant vibration or rough idling, it could be indicative of a drivetrain malfunction. This issue can be traced back to multiple causes, such as the SMG system, driveshaft, or differentials.

In case you experience any of these issues in your BMW M6, it’s essential to have it inspected and diagnosed by a professional mechanic.

They can properly identify the root cause of the problem and recommend the necessary repairs to ensure your car remains in optimal condition.

Maintenance and Repairs

DIY Solutions

Your BMW M6 might experience common issues, but many can be solved with DIY solutions. Stay informed about your vehicle and perform regular maintenance to extend its lifespan.

Valve Cover Gasket Oil Leak

One prevalent problem is the valve cover gasket oil leak. Keep an eye on oil levels and replace the gasket if necessary to prevent further damage to your M6.

Performance and Design

Horsepower and Top Speed

With the BMW M6’s impressive S63 engine, you’ll experience exhilarating performance and a top speed of 155 mph. This vehicle boasts a remarkable 560 horsepower, giving you the thrilling acceleration and responsive handling to satisfy your inner driver.

Convertible and Gran Coupe Models

The M6 offers both Convertible and Gran Coupe body styles, allowing you to choose a design that best suits your preferences. With either option, you’ll enjoy an elegant, black exterior and refined, driver-focused interior in your high-performance BMW M6.

Handling and Suspension

Your BMW M6 could experience handling and suspension issues due to tire or suspension problems. For instance, a 2013 M6 Cab owner found their vehicle had poor handling, no stability, and felt unsteady on the road.

To maintain optimal handling, it’s crucial to ensure your M6 has the appropriate tires and properly functioning suspension components.

Regularly inspect your suspension system and replace the necessary parts, such as adaptive dampers, to improve your car’s stability.

Keep an eye out for signs of rust, as it can compromise the integrity of your vehicle’s suspension. Address automotive complaints promptly to enhance your driving experience and extend your M6’s lifespan.

Related Models

Though you’re exploring the BMW M6, you might be interested in learning about other BMW models in the M-division lineup. The M5, M8, and 6-Series all share a few similarities while offering unique attributes.

The BMW M5 is a perfect match for those who prefer performance-oriented sports sedans. Boasting a powerful engine and many S63 problems in M5 and M6, the M5 lets you enjoy exhilarating performance and luxury comfort together.

If you desire a more aggressive version of the M6, consider the BMW M8. Featuring the same S63 engine but with additional frills and visual enhancements, the M8 takes performance and design up a notch.

Lastly, for those who prefer a more casual daily-driving experience yet still crave a taste of luxury, the standard 6-Series might be the right choice.

EDITORS TIPS: We’d written a detailed provisions to your query: Is the M5 faster than the M4? Plus other vital considerations! Also discover these M5 Competition and M5 sedan’s similarities and major differences!

The BMW M6 Best Year Models

When considering a BMW M6, it’s essential to know which year models perform best. Based on the available information, we will provide you with a few standout years that exhibit fewer problems and reliable performance.

2015 BMW M6: This year’s model seems to be a great choice for you. It offers an excellent balance between performance and practicality while maintaining a lower cost of ownership. Plus, it has fewer known issues compared to the earlier releases of the M6.

2016 BMW M6: Similar to the 2015 model, the 2016 BMW M6 provides a fantastic bang for your buck. If you’re acquiring a three-year-old M6, be sure to get the full extended warranty and maintenance package for the car. It will ensure that any potential problems are taken care of.

2018 BMW M6: The 2018 BMW M6 is another excellent choice for M6 enthusiasts. Although this model is relatively recent, there are many reports of a smooth ownership experience. It continues to offer the power and luxury expected from a BMW M6.

In conclusion, when making a decision on which BMW M6 to purchase, consider the 2015, 2016, or 2018 year models. These years seem to provide a more reliable experience while delivering the performance you desire from an M6.

BMW M6 Competitors

Audi RS7

When considering a luxury sports car, the Audi RS7 is surely a contender you should think about. The RS7 shares a similarly powerful engine to the M6, specifically, a 4.0-liter V8 that delivers excellent performance.

However, the RS7 has an advantage with its quattro all-wheel-drive system, offering more traction and confidence during cornering.

On the flip side, the BMW M6 has a more engaging rear-wheel-drive setup that, for some drivers, adds to the thrilling experience of driving a high-performance vehicle.

Lexus GS F

Another competitor worth exploring is the Lexus GS F. While it may not offer the same level of performance as the M6 or RS7, the GS F has a naturally aspirated 5.0-liter V8 that provides a unique and linear power delivery.

Checkout the related brother, the Lexus GS 450h issues and best GS-450H model years! Additionally, Lexus has a reputation for superb build quality and reliability, making it an attractive option if you prioritize peace of mind in your luxury sports car.

Porsche 911

The Porsche 911, an iconic sports car, also competes with the M6 in terms of performance and driving dynamics.

Its lighter weight and more focused design lead to a more agile and connected driving experience. While the 911 excels in handling, it comes at the cost of a less spacious cabin and less daily practicality compared to the BMW M6’s larger interior and 2+2 seating layout.

In summary, when comparing the BMW M6 to its competitors, keep in mind the varying performance levels, handling characteristics, and practicality aspects each vehicle offers to find the right fit for your driving preferences.

Frequently Asked Questions

What are common issues with 2006 BMW M6?

The 2006 BMW M6 is known to have a few common issues, such as engine misfires, oil leaks, and rod bearing failure.

Transmission-related problems like jerky or delayed shifting and clutch issues can also be observed in this model. Lastly, you may encounter electrical problems such as battery drainage and electronic malfunctions

Which years are less reliable for BMW M6?

The reliability of BMW M6 models varies, but a known issue with faulty oil pumps was reported, potentially causing engine failure in certain M6 Convertible and Coupe models manufactured between July 19 and September 11, 2012.

How is the reliability of the S85 engine?

The S85 engine, used in BMW M5 and M6 models, has some known issues. Along with the previously mentioned rod bearing failure, you may also experience VANOS solenoid faults, which are related to variable valve timing.

Are there any frequent problems with the S63 engine?

The S63 engine in M5 and M6 models may experience VANOS solenoid faults, as well as issues with charge air coolers, fuel injectors, and crankshaft position sensor malfunctioning.

How reliable is the 2015 BMW M6?

The 2015 BMW M6 is considered more reliable than its predecessors, but it can still encounter common engine, transmission, and electrical issues as mentioned earlier.

What about the 2016 BMW M6 reliability?

The 2016 BMW M6 shares similar reliability ratings as the 2015 model. Stay vigilant for common issues in engine, transmission, and electrical components. Regular maintenance and preemptive care are key to ensuring your M6 stays in top condition.

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