Drive train malfunction on BMW – Causes and ways to fix

The drivetrain comprises the transmission, driveshaft, axles, and differentials. Together, all these systems allow your vehicle to move forward and backward, turn left and right, and apply more power when needed. So, what can be done if the drive train malfunction on BMW?

The drivetrain on a BMW consists of the engine, transmission, and differential. The drivetrain is one of the most important aspects of any vehicle, as it controls how much power is sent to the wheels. A malfunctioning drivetrain can cause your BMW to run poorly and lose power.

While every BMW is engineered to deliver miles of driving pleasure, they don’t always perform flawlessly as they should, and drivetrain problems are common complaints among drivers. A failing drivetrain in your BMW can mean losing power to the wheel(s), or the vehicle will not move.

So, on this page, you will get to know the cause of the malfunctioning drive train and how you can fix it in your BMW.

Drive train malfunction on BMW

What is the drivetrain on a BMW?

The drivetrain of a BMW consists of all of the components that deliver power to the driving wheels. The rear-wheel-drive (RWD) and four-wheel drive (4WD) models are used for sporty driving, while front-wheel drive is for more comfort-oriented journeys.

The BMW drivetrain consists of the engine, transmission, and the final drives, including the differential and its many parts. The case in the transmission that holds everything together is called the transmission casing.

It is the system of components that deliver power from the engine to the drive wheels. This includes the transmission, axles, driveshaft, and wheels/tires. Most BMWs will have RWD (rear-wheel drive).

If a BMW has AWD (all-wheel drive), it will include additional components such as transfer cases, differentials, and a prop shaft.

What does malfunction mean?

Malfunctioning in a car means one part of the car is not working as it should, and it will affect the car’s performance. Often, what tells you about the malfunctioning of the laptop is the light that pops up on the dashboard.

A malfunctioning light that comes on in your car is meant to alert you to a problem with your vehicle. A malfunctioning light will generally come on when a device or sensor isn’t working correctly, which can occur due to old age, defective parts, or issues with the electronic system.

If the car behaves erratically and the engine light comes on, there is a problem with the engine. This is because the computer in the car is connected to many sensors that control most of the car’s functions, including acceleration, braking, andhttps://allroadtire.com/how-do-you-reset-a-transmission-control-module/ transmission shifting.

The computer keeps track of all these functions and looks for deviations from normal functions. When it senses an anomaly, it stores codes that describe the problem in memory. Then, the light comes on as a warning so you can take your car for repairs.

BMW drivetrain malfunction

The transmission and drivetrain are parts of your car that transfer power from the engine to the wheels. For example, in the BMW automatic transmission, a torque converter connects the engine to your driveshaft.

If your car displays a malfunction for the torque converter or another issue with your drivetrain, it can be expensive and time-consuming to repair.

If you turn on the ignition and the BMW drivetrain malfunction light comes on, it means that the software detects a fault in the primary or secondary sense circuit of the throttle actuator. Usually, this fault is related to electronic throttle control. As a result, you will be able to drive, but your car may feel sluggish or jerk when accelerating.

So, the drivetrain of a BMW is made up of many parts that work together to get power to the wheels. If the components are not working properly, you may experience malfunctions.

Taking steps to understand the different signs can help you quickly identify any problems that may arise to be fixed. Take a few moments to understand the BMW drivetrain malfunction signs below and keep your car running smoothly.

Drive train malfunction on BMW

What does a drivetrain do?

A drivetrain is a term we use to describe the mechanical system used to generate and control power delivery from the engine to the wheels. For example, a simple drivetrain includes only an engine, transmission, and differential.

Today, a drivetrain can become very complex with new technology such as all-wheel drive and stability control.

Also, it is the part of your car that takes power from the engine and delivers it to the wheels. It is connected to the vehicle’s transmission, which is responsible for changing gears depending on speed and terrain, changing the amount of torque being delivered.

So, while there are many different drivetrain layouts, such as front-wheel drive and rear-wheel drive, most are variations on a common theme. The key component of the drivetrain is the driveshaft.

No matter which wheel is controlled by which axle, power is carried from one to the other through the driveshaft. As long as there is a way to send power through a driveshaft, you can have power delivered to your wheels even if their axles are on opposite sides of the vehicle.

Can broken axle damage transmission?

A broken axle is a common problem for cars, but it can also be a dangerous one if you’re not careful. If you break an axle and continue to drive, you could damage your transmission or cause other problems with your car.

A broken axle will not damage the transmission. This is because the CV joints connect to the axles are made of extremely hard materials able to withstand the forces they are subjected to and at the same time offer limited ability to absorb the shock.

However, it depends. If your transmission has a fluid coupling or torque converter, it will not be harmed in any way. However, if it is strictly an automatic transmission with no fluid coupling, it may be damaged if the powertrain is operated for too long with a broken axle.

Can a bad axle cause transmission problems?

Yes, a bad axle can cause transmission problems and damage the transmission, even if the broken axle is not connected to the transmission.

Bad axles can cause transmission problems. Axles are a very important component in the design of any car. If the axles go bad, it will affect transmission fluid and cause a problem with the gears.

If there is a transmission problem, the axle will not cause. Typically a bad axle will give symptoms of a noisy CV joint, grinding or clicking noise that worsens at turns and may cause vibrations on your vehicle. The axle cv joint transfers power to the wheel hub.

What can cause a drivetrain malfunction?

A drivetrain malfunction is most likely due to a problem with your vehicle’s electric motor or transmission. For example, this issue may be caused by contact between the drive motor and transmission shifter fork, damaged motor mounts, an improperly installed motor coupling, or a failure of the transmission control unit software.

Below are other possible reasons your drivetrain can malfunction.

Damaged fuel injectors

Damaged fuel injectors cannot deliver a precise amount of fuel into the engine cylinder. Fuel injectors are a key component of the gasoline direct injection system that fuels the engine in a very precise manner while increasing your vehicle’s performance.

So. damaged or worn out fuel injectors can significantly reduce engine performance, contribute to poor fuel economy, lower the ability to maintain proper air/fuel mixture, and cause rough idling.

Faulty spark plugs

Faulty spark plugs can cause the engine to misfire, which can cause the drivetrain to malfunction. A drive train malfunction often means that your car wasn’t started properly. Faulty spark plugs can cause this problem.

If a sensor detects that the engine is not turning properly, it will shut down automatically to avoid further damage. In worst cases, driving it may result in irreparable engine damage. If you have to replace it, we recommend taking it to a professional mechanic.

Faulty fuel pump

A faulty fuel pump can cause your fuel to burn unevenly, leading to engine misfire, stumble, or lack of power. This problem may not do with your drivetrain malfunction but could be misfiring within the cylinders due to other issues.

Also, fuel pump failure and fuel starvation in your vehicle can be caused by various issues, including a faulty fuel pump or a dirty fuel filter. These two components comprise the drivetrain of your car, and an issue with either can cause a wide variety of car problems.

Faulty ignition coil

The issue could be caused by a faulty ignition coil, especially if there is no visible engine damage. If you have a problem with an ignition coil, you will be alerted of that fact via the check engine light feature and the malfunction indicator light feature.

The ignition coil is a crucial part of your car’s electrical system. Unfortunately, over time, the ignition coil may cause a drivetrain malfunction, leading to problems like engine misfiring or poor fuel economy.

Clogged catalytic converter

A clogged catalytic converter prevents engine exhaust from flowing out of the system. As a result, gas buildup in the engine can lead to blown gaskets, excessive heat buildup, and many other problems.

If your vehicle has been performing erratically and your check engine light is on, you may have a clogged catalytic converter (commonly referred to as cat converters). When this tiny device located between your car’s engine and exhaust manifold goes bad, it can cause several problems in your car’s performance, such as causing it to overheat.

Low-quality fuel

Low-quality fuel is a common cause of drivetrain malfunctions. This can be solved easily by upgrading to premium and/or using treatments like Techron or STP every three months.

Trying to save on gas by filling up at the cheapest stations in town may not be a cost-saver in the long run. Low-quality gas can clog a car’s fuel injectors and cause carbon and varnish buildup. Fuel additives are designed to help clean out an engine, but it’s important to use high-quality gas where available for best results.

How do you fix a drivetrain malfunction?

Depending on the severity, you might be able to adjust your drivetrain or replace it completely. While some websites give steps on fixing it, I will suggest you take your car to your mechanic.

You should allow your mechanic to fix the drive train and never try to fix yourself. You might end up paying the extra money if your trial or effort to fix failed.

Can I drive with a drivetrain malfunction?

Yes, it should be safe to drive for a short distance. However, reduce your speed and proceed carefully to your nearest tire dealer or car repair workshop if you notice any unusual noises or smells.

For safety reasons, you should not drive with a drivetrain malfunction. If you do so, you will most likely worsen the damage to the drivetrain and other components by causing them to overheat.

Suppose you continue to drive with a malfunctioning drivetrain. In that case, you could even cause mechanical failure and force yourself to replace certain parts or the entire system, which could cost thousands of dollars.

How do I know if my drivetrain is bad?

When the drivetrain is bad, it can fail to operate. For example, the vehicle would not go forward or backward. However, the following should help you know that your drive train is likely to be bad.

Vibrations from under the vehicle

If you feel vibrations from under the vehicle, you may want to check your drivetrain for any problems. Drivetrain issues can be a serious problem if not taken care of in time, so use this guide to diagnose your problem. Before checking the drivetrain, ensure your wheels are balanced and properly aligned.

Difficulty in turning

Difficulty in turning is one of the major problems you will notice in your vehicle. Several problems can cause this, but the most common is a bad drivetrain. When you place the car in gear, there should be no resistance when turning the driveshaft.

There is an issue with the gearbox or differential if there is resistance, leading to the final drive causing this problem. These internal parts could be seized up or broken and require replacement.

Loud clunking noise

Loud clunking noises are a classic sign of damage to any drivetrain. While levers, gears, and cables can be repaired or replaced, if the drivetrain is severely damaged, it may need to be completely replaced.

If your vehicle’s drivetrain is not working correctly, you may hear a loud clunking from underneath your car. You should have your drivetrain inspected and serviced by a certified technician immediately to avoid more costly damage.

Car shudders upon acceleration

When your car shudders upon acceleration, it is often a sign that your drivetrain needs attention. This system delivers power to the wheels and controls how your car moves.

If you notice that yours are making noises other than standard squeaks and rattles, like a loud roaring or grinding noise, it could be a problem with the drivetrain.

Also, car shuddering against acceleration can be caused by a worn-out transmission and other parts. Also, there could be a bad transmission input shaft bearing when the car is in neutral and the clutch pedal to the floor.

Squeaking noise

One of the most common signs of a bad drivetrain is a squeaking noise that occurs when you’re accelerating. Squeaking is typically an indication that one or more of the components in your drivetrain have worn out.

Clicking or knocking noise.

If you hear a clicking or knocking sound when pedaling the drivetrain, the chain likely needs adjusted or replaced, or the cassette needs replaced. It may also be possible that a bearing in your bottom bracket, crankset/pedals, or rear hub is damaged as well.

Some possible symptoms indicate that your drivetrain needs repairing or replacing. First, listen to clicking or knocking sounds during acceleration or deceleration. Next, feel for any unusual vibrations at higher speeds.

If you experience any of these symptoms, get your car checked out by a mechanic as soon as you can to avoid further damage.

How much does it cost to fix drivetrain malfunction BMW?

The average cost for drive train repairs is bewteen $1,200 and $1,500. Labor costs are estimated between $853 and $1076, while parts are priced at $347.

Conclusion

It can be frustrating to have a dead car in the middle of the road only to find out the drive train is bad. The drive train of a car does not just go bad without showing signs. So, it is an indication you do not understand the language of your car.

The information on this page shows all the causes and signs so that you can respond in time to any issue that shows up.