12 Reasons Of BMW Drivetrain Malfunction You Need To Know!

Written By: Terrence Hines
Category: Engine

The feeling of hitting the open road in a BMW is one that many drivers relish. However, this experience can quickly be ruined by the dreaded BMW drivetrain malfunction.

To ensure your BMW lasts a long time, it is crucial to address problems promptly. Engage in regular maintenance and promptly fix any issues instead of waiting for them to worsen.

12 Causes Of BMW Drivetrain Malfunction

The BMW drivetrain malfunction is an issue that can arise unexpectedly, leaving drivers frustrated and worried about the health of their vehicles.

The drivetrain transmits power from the engine to the wheels, so a malfunction can significantly affect the car’s performance.

While there are various causes for a drivetrain malfunction, some common culprits include worn-out parts, electrical issues, or problems with the transmission.

If you are experiencing any issues with your BMW’s drivetrain, bringing it to a certified mechanic for an inspection and repair is essential.

Early detection and proper maintenance can prevent the problem from worsening and ultimately save you time and money in the long run.

1. Overheated Engine Oil Due To Low Levels Of Oil:

Maintaining proper oil levels in your BMW is essential to keep your drivetrain functioning correctly.

12 Causes Of BMW Drivetrain Malfunction

Low levels can cause BMW engines to overheat and lead to engine oil-related problems, a common issue among BMW drivers.

When the oil levels fall below the recommended amount, the engine will work harder to distribute the oil around the system, which results in the oil getting overheated.

A BMW drivetrain malfunction may occur if you don’t address this issue promptly, as it can potentially harm your vehicle severely.

To avoid such problems, monitoring and maintaining your BMW’s oil levels frequently is crucial.

Regular oil changes and prompt attention to any oil-level warnings on your dashboard can keep your engine running smoothly and prevent costly repairs.

2. Worn-Out Clutch Components:

Issues with worn-out clutch components rank among the most common causes of BMW drivetrain malfunctions.

When the clutch assembly wears out, various components, including the clutch disc, the pressure plate, and the clutch release mechanism, begin to malfunction.

These components fail due to excessive stress, high temperatures, or general wear and tear.

Since a malfunctioning clutch affects the overall performance of the BMW, it is advisable to address the problem as quickly as possible by replacing the worn-out parts.

Ultimately, properly maintaining the clutch will go a long way in ensuring your BMW performs optimally over the long haul.

3. Leaking Transmission Fluid:

Leaking transmission fluid can be a common culprit in the causes of BMW drivetrain malfunction.

Transmission fluid is vital to ensure smooth gearbox operation, lubrication, and cooling as it transfers power from the engine to the wheels.

Any leak on the drivetrain could cause problems, from a slipping transmission to overheating, which could irreparably damage the system.

To prevent additional harm, it is important to be aware of the indications of a transmission leak in your BMW.

These can include unusual sounds or odors, trouble with changing gears or accelerating, and the presence of noticeable leaks beneath the car.

Regular inspection and maintenance of your BMW’s drivetrain can keep it running like new for years.

4. Slipping Or Sticky Clutch Discs:

Slipping or sticky clutch discs are a potential culprit behind BMW drivetrain malfunctions.

Vehicle owners may experience frustration due to unresolved issues, which can potentially cause further damage if left unattended.

The clutch disc is an integral part of the clutch assembly, working to engage and disengage power between the engine and transmission.

Slipping Or Sticky Clutch Discs

If the clutch of the vehicle slips or sticks, it can adversely affect the overall performance.

This can cause problems such as poor acceleration, difficulty in shifting gears, and some cases, complete failure of the clutch system.

Regular maintenance and prompt attention to any signs of clutch disc trouble are key to keeping your BMW running smoothly.

5. Faulty Shifter Components:

Have you ever experienced difficulty shifting gears in your BMW? It could be due to faulty shifter components. When these parts fail, they can cause significant drivetrain problems.

If the shifter in your BMW is faulty, it can cause problems with the transmission, clutch, or driveshaft. This could make your vehicle unsafe to drive and less dependable.

As such, it’s imperative to address this problem immediately by taking your car to a trusted mechanic to have the components inspected and replaced if necessary.

Preventing interruptions while driving, avoiding drivetrain malfunctions that can cause problems, and ensuring a smooth and safe driving experience are important.

6. Worn-Out Gearbox Shafts Or Bearings:

Worn-out gearbox shafts or bearings may sound like a small issue, but it can cause major problems for BMW drivetrain performance.

The components that transfer power from the engine to the wheels are crucial for acceleration, responsiveness, and handling.

The car’s performance in these areas can be impacted by any wear or damage to these components.

If you don’t fix a malfunctioning gearbox, it can lead to a lot of noise and shaking, and eventually, it might stop working altogether.

For any BMW owner experiencing these symptoms, having the gearbox inspected and repaired by a qualified mechanic is important to ensure safe and reliable driving.

7. Faulty Flywheel Teeth:

A fundamental part of a car’s engine is the flywheel, which stores energy and momentum to assist with smooth operation.

Unfortunately, faulty flywheel teeth can be a significant issue for various car models, including BMWs.

This mechanical problem is a common cause of drivetrain malfunction, which can lead to extensive and costly repairs.

 BMW Drivetrain Malfunction

When the teeth on a flywheel become worn, distorted, or chipped, it can cause the flywheel to malfunction. This is commonly referred to as faulty flywheel teeth.

Regularly checking the condition of your flywheel is essential. It can help you identify any issues early on, saving you significant time and money in the future.

8. Defective Transmission Mount:

A defective transmission mount is another issue that can cause problems with a BMW drivetrain, which is also quite common.

This component is crucial in maintaining the transmission’s stability and securing it while driving under normal conditions.

If the mounting system fails, the transmission may shift out of place when accelerating, decelerating, or navigating corners.

Several issues, including slipping, shaking, and noise, can arise from this situation.

If you suspect your BMW’s transmission mount is defective, it’s important to have it inspected by a professional mechanic as soon as possible.

A simple repair can prevent more significant damage to your vehicle’s drivetrain in the long run.

9. Defective Driveshaft Or Differential:

Experiencing a drivetrain malfunction as a BMW owner can be a frustrating and challenging experience.

One of the main reasons for this problem could be a faulty transmission mount, although there could be other causes.

This part plays a crucial role in keeping the transmission stable and secure, and when it fails, it can have a domino effect on other parts of the drivetrain.

If the transmission mount is defective, it can cause too much movement in the driveshaft or differential. This can create stress that may cause them to fail eventually.

If you are experiencing unusual sounds or vibrations from beneath your BMW, it may indicate a need to assess your transmission mount.

10. Misaligned Axle Shafts:

As a BMW owner, it’s important to know all potential issues with your beloved vehicle.

In luxury cars, drivetrain malfunction is often caused by either misaligned axle shafts or suspension components that are defective.

Uneven tire wear, reduced handling, and tire damage can result from these problems, which can be costly to repair or replace.

Fortunately, there are ways to identify and address these issues before they cause significant harm to your car.

To ensure your BMW stays in good condition, it’s crucial to watch out for any unusual sounds or sensations. Ignoring them can lead to more significant problems.

Instead, bring your car to a trustworthy expert who can diagnose and repair any problems with the suspension parts or axle shafts that are misaligned before they become costly.

11. Faulty Driving Module Or Control Unit:

A faulty driving module or control unit is one of the reasons why your BMW’s drivetrain may encounter a malfunction.

Faulty Driving Module Or Control Unit

The function of this module is to oversee the transmission system and regulate the operation of different engine parts.

When the module fails to function properly, it can cause many problems, such as start-up issues, reduced power, and even the transmission slipping.

Exencing frustration when your BMW encounters a drivetrain malfunction is common, but it’s crucial to identify the underlying issue to have it repaired correctly.

It is advisable to take your car to a reliable mechanic if you think the problem might be connected to the driving module or control unit.

With this, you can identify and fix the issue more accurately.


Taking the time to diagnose and repair drivetrain issues with a BMW is essential to maintain the highest level of performance from its engine, transmission, and other components.

To fix the issue, it is crucial to identify the potential cause of the malfunction.

Various common issues can cause a BMW drivetrain to malfunction, such as low oil levels and defective suspension components.

Fortunately, with the right research and professional help, these problems can be solved cost-effectively.

Now that you know more about the potential causes of a faulty drivetrain, you just may have saved yourself time and money in maintaining your own set of wheels.

Terrence Hines

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