2016 BMW M6 Engine Is Stalling

Common Causes of Engine Stalling in Your 2016 BMW M6 and How to Resolve Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Fuel System
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15% chance it's the
Air Intake System
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55% chance it's
Something else
The most common reasons a 2016 BMW M6 engine is stalling are the fuel system, the air intake system, or the ignition system.
  • Fuel System: A clogged fuel filter or failing fuel pump can restrict fuel flow, resulting in poor engine performance and starting issues.
  • Air Intake System: A dirty or damaged air filter or a malfunctioning mass airflow sensor can restrict airflow, leading to reduced engine performance and efficiency.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2016 BMW M6 engine is stalling?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

If the MAF sensor sends an erroneous signal, a few things happen. The engine's computer will trigger the check engine light, and the on-board diagnostic (OBD) trouble codes will reflect the airflow discrepancy noted by the MAF sensor. Depending on the reported volume of air, the engine may try to compensate for these conditions, causing the engine to burn excessive amounts of fuel and emit black smoke from the exhaust. In this case, the OBD trouble codes would also reference faults recognized by the exhaust oxygen sensors. The engine may also have issues with idling roughly, failing to start, stalling, hesitation, power loss, misfires, and fuel consumption.

»MORE: Signs of a failing mass airflow sensor

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

The most likely symptom of a faulty fuel temperature sensor is a check engine light. When the sensor goes bad, the Engine Control Module signals the driver that there is a problem by turning on the dash light. Poor fuel economy might also be noticed. In some cases, a failing fuel temperature sensor could lead to hard starting of the engine or an engine misfire and poor performance.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What diagnostic steps should be taken to address the stalling issue in a 2016 BMW M6?

When tackling the stalling issue in your 2016 BMW M6, it's essential to adopt a methodical diagnostic approach that begins with the most straightforward checks. Start by connecting an OBD-II scanner to your vehicle to retrieve any Diagnostic Trouble Codes (DTCs) that may indicate specific problems. This initial step can save you time and effort by pinpointing potential issues. Next, inspect the fuel system, as fuel delivery problems are a common culprit; ensure that the fuel pump, filter, and injectors are all functioning properly. Following this, examine the air intake system for any blockages or leaks that could disrupt airflow, as this can significantly impact engine performance. The ignition system also warrants attention; check the spark plugs and ignition coils for wear or malfunction, as these components are vital for engine operation. Additionally, assess the condition of critical sensors like the crankshaft and camshaft position sensors, as faulty readings can lead to stalling. Don’t overlook the possibility of vacuum leaks, which can cause rough idling; inspect all vacuum lines for damage. Lastly, if your vehicle is equipped with an Auto Start-Stop system, consider its role in the stalling behavior, especially during braking. By systematically addressing these areas, you can effectively diagnose and resolve the stalling issue, ensuring your BMW M6 runs smoothly.

What are the common problems that could cause the engine to stall in a 2016 BMW M6?

When diagnosing engine stalling issues in a 2016 BMW M6, it's essential to consider several key areas that could be malfunctioning. The fuel system is often a primary suspect; problems such as a failing fuel pump or clogged fuel filters can disrupt the flow of fuel to the engine, leading to stalling. Additionally, the air intake system plays a crucial role in maintaining the correct air-fuel mixture, and any vacuum leaks or obstructions can cause rough idling and stalling. Ignition system failures, particularly worn spark plugs or ignition coils, can also lead to misfires and engine shutdowns. Furthermore, owners should be aware of potential rod bearing issues, which are known to cause severe engine problems in certain M6 models, especially as they age. Lastly, while the auto-stop/start feature in the M6 is designed for fuel efficiency, it can sometimes be mistaken for stalling; understanding how this system operates is vital for accurate diagnosis. By systematically checking these components, DIYers can effectively troubleshoot and address the stalling issues in their BMW M6.

How urgent is it to address the engine stalling issue in a 2016 BMW M6?

Addressing the engine stalling issue in a 2016 BMW M6 is of utmost urgency due to the serious safety risks it poses. Stalling can occur unexpectedly, leaving the driver without control and increasing the likelihood of accidents. Factors such as a faulty fuel pump or crank position sensor can lead to these dangerous situations, and neglecting these symptoms can result in more severe mechanical failures and costly repairs. It is essential for DIY enthusiasts to diagnose the root cause of the stalling as soon as possible, whether it involves checking fuel quality, inspecting air supply, or testing critical components. By taking immediate action, you not only ensure your safety on the road but also protect your vehicle from further damage, making timely intervention a critical step in vehicle maintenance.

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