How to Permanently Turn off Mds on Ram 1500

To permanently turn off MDS on a Ram 1500, disable it through the engine’s computer system. This can be done using a professional diagnostic tool or consulting a mechanic familiar with the process.

If you own a Ram 1500 and have been experiencing issues with MDS (Multi-Displacement System), you may wonder how to turn it off permanently. MDS is designed to improve fuel efficiency by deactivating half of the engine’s cylinders during light load conditions.

However, some drivers find it disruptive or less effective in certain situations. Fortunately, there is a way to disable MDS permanently.

We will explore the steps to achieve this, ensuring you can enjoy the full potential of your Ram 1500 without the inconvenience of MDS.

Understanding MDS and its Impact on Ram 1500 Performance

Uncover the impact of MDS on the performance of the Ram 1500 and learn how to disable this feature permanently. Enhance your truck’s capabilities by understanding and controlling the MDS system without hassle.

MDS, or Multi-Displacement System, is an innovative feature in Ram 1500 trucks that aims to optimize fuel efficiency without sacrificing power.

By deactivating specific cylinders when they are not needed, the MDS system helps improve overall engine performance. Let’s dive deeper into what MDS is and how it works in the Ram 1500.

What is MDS and How Does it Work in Ram 1500?

  • MDS is a technology implemented in the Ram 1500 that allows the engine to switch between four-cylinder and eight-cylinder modes depending on the power demand.
  • When the truck is cruising on highways or experiencing light loads, the MDS system deactivates four of the eight cylinders, operating in a more fuel-efficient four-cylinder mode.
  • However, when the driver accelerates or requires more power, the MDS system seamlessly reactivates the deactivated cylinders, instantly switching back to full eight-cylinder mode.
  • The driver’s transition between modes goes unnoticed, ensuring a smooth and uninterrupted driving experience.

The Pros and Cons of MDS on Ram 1500

MDS on the Ram 1500 brings advantages and considerations for potential owners. Let’s explore the pros and cons of this system:


  • Enhanced fuel efficiency: By reducing the number of active cylinders during low-demand situations, MDS helps improve fuel economy, potentially saving drivers money on gas expenses.
  • Reduced emissions: With fewer cylinders, the Ram 1500 equipped with MDS emits lower levels of harmful pollutants, contributing to a cleaner and greener environment.
  • Seamless transition: The intelligent MDS system seamlessly activates and deactivates cylinders, providing a smooth driving experience without any noticeable changes in performance.
  • Increased range: The improved fuel efficiency resulting from MDS enables drivers to cover more distance on a single tank, perfect for long road trips or off-road adventures.


  • Potential power limitations: The reduced number of active cylinders may limit the truck’s power output when operating in four-cylinder mode, especially during heavy towing or hauling loads.
  • Increased complexity: As with any advanced technology, the MDS system adds complexity to the engine, which may require additional maintenance and repairs in the long run.
  • Compatibility with aftermarket modifications: Certain engine or exhaust system modifications may interfere with the MDS system’s proper functioning, requiring specialized attention and potential adjustments.

Exploring the Impact of MDS on Fuel Efficiency and Engine Performance

Fuel efficiency and engine performance are two crucial aspects to consider when evaluating the impact of MDS on the Ram 1500. Let’s take a closer look at how MDS affects these factors:

Fuel efficiency:

  • MDS significantly improves the Ram 1500’s fuel efficiency by optimizing the engine’s performance during low-demand situations.
  • By deactivating half of the cylinders, the MDS system effectively reduces fuel consumption when cruising on highways or during steady-speed driving.
  • The improved mileage achieved with MDS can lead to significant savings at the fuel pump, making the Ram 1500 an economical choice for daily commuting and long-distance travel.

Engine performance:

  • While MDS is primarily designed to enhance fuel efficiency, it may have a minimal impact on engine performance in specific scenarios.
  • During ordinary driving conditions, MDS operations are seamless and go unnoticed by the driver, resulting in no compromise in power or acceleration.
  • However, when the truck encounters demanding tasks such as towing heavy loads or climbing inclines, the MDS system may quickly activate all cylinders to provide the necessary power, ensuring the Ram 1500 delivers the performance required for challenging situations.

MDS in the Ram 1500 balances fuel efficiency and engine performance. With its ability to deactivate cylinders when not needed, this innovative system optimizes fuel consumption without compromising power output, making the Ram 1500 an efficient and capable truck for various driving scenarios.

Reasons to Disable MDS on Ram 1500

Disabling the MDS on a Ram 1500 can provide benefits like improved fuel efficiency and reduced engine wear. Follow these instructions to permanently turn off the MDS system and optimize your truck’s performance.

As a Ram 1500 owner, you may have experienced frustrations and drawbacks associated with the Multi-Displacement System (MDS). However, disabling MDS can offer various benefits, significantly improving your driving experience.

Common Complaints and Issues Faced By Ram 1500 Owners With MDS

  • Unwanted shifting: MDS can cause frequent and sometimes abrupt shifting between four and eight cylinders, resulting in a less smooth driving experience.
  • Power loss: When the MDS engages, it can lead to a noticeable decrease in power and acceleration, making it challenging to reach higher speeds or navigate steep inclines.
  • Vibrations and noise: MDS can contribute to increased vibrations and engine noise, which can be annoying, especially during idle or low-speed driving.

How Disabling MDS Can Improve the Driving Experience

  • Enhanced performance: By turning off MDS, you can ensure that all cylinders remain active, providing a consistent and powerful performance without the interruptions caused by frequent cylinder deactivation.
  • Smoother acceleration: Without MDS causing intermittent power loss, you can enjoy a more responsive and smooth acceleration, making overtaking and merging onto highways effortless.
  • Optimal engine sound: Disabling MDS eliminates the vibrations and excessive noise associated with the system, providing a quieter and more enjoyable driving experience.
  • Reduced wear and tear: MDS activation and deactivation can strain engine components. By turning it off, you can extend your engine’s lifespan and reduce the likelihood of costly repairs.

Benefits of Disabling MDS in Terms of Fuel Economy and Engine Longevity

  • Improved fuel efficiency: MDS is designed to enhance fuel economy by deactivating cylinders during periods of low power demand. However, many Ram 1500 owners have reported that the system’s impact on fuel efficiency is minimal, and disabling it can lead to better overall gas mileage.
  • Consistent engine operation: MDS activation and deactivation can cause unnecessary wear on engine parts, potentially leading to premature failure or reduced engine longevity. By disabling MDS, you can ensure that all cylinders operate consistently, minimizing the risk of damage and preserving the engine’s lifespan.

Disabling MDS on your Ram 1500 can offer several advantages, including a smoother driving experience, improved performance, and potential fuel savings.

Considering these benefits, it’s worth exploring the option of permanently turning off MDS to optimize your vehicle’s capabilities.

Methods to Permanently Turn Off MDS on Ram 1500

Learn the effective methods to permanently disable the Multi-Displacement System (MDS) on your Ram 1500. Eliminate the hassle of MDS activating and enjoy a consistent driving experience with these simple steps.

The Ram 1500’s Multi-Displacement System (MDS) is designed to enhance fuel efficiency by deactivating cylinders when they are not needed. While it may have benefits, some drivers prefer a more consistent power delivery and want to turn off the MDS permanently.

In this guide, we will explore two standard methods to disable MDS through the settings menu and alternative approaches to achieve this. Let’s get started!

Accessing and Navigating the Ram 1500’s Settings Menu

To disable MDS on your Ram 1500, you must access and navigate the settings menu. Follow these steps to find the MDS option:

  • Start your Ram 1500’s engine and locate the Uconnect touchscreen display on the dashboard.
  • Tap on the “Settings” icon on the home screen.
  • Look for an option that reads “Vehicle Settings” or “Performance Settings” and tap on it.
  • In the subsequent menu, search for an option related to “Engine” or “Active Fuel Management.”
  • Select this option to access the MDS settings.

Step-By-Step Guide to Disabling MDS Through the Settings Menu

Once you have accessed the MDS settings in the Ram 1500’s settings menu, follow these steps to disable it:

  • Locate the MDS option: You can enable or disable MDS within the MDS settings menu. It might be labeled as “MDS On” or something similar.
  • Disable MDS on Ram 1500: Tap on the option to disable MDS. This will prevent the system from activating and deactivating cylinders based on power demands.
  • Saving the changes and restarting the vehicle: After disabling MDS, the settings need to be saved. Look for an option such as “Save” or “Apply Changes” and select it. Then, turn off the engine and start again to ensure the changes take effect.

Alternative Methods to Turn Off MDS on Ram 1500

If you’re unable to disable MDS through the settings menu, there are alternative methods you can try:

  • Use a performance tuner: Performance tuners, also known as power programmers or engine control modules (ECMs), can reprogram your Ram 1500’s computer to modify various settings, including disabling MDS. Consult the tuner’s user manual or manufacturer’s website for instructions on disabling MDS using their specific device.
  • Install an MDS delete kit: Some aftermarket companies offer MDS delete kits that allow you to disable the MDS system physically. These kits typically include particular engine parts and instructions on removing the MDS components. Please note that modifying your vehicle’s engine may void warranties, so proceed with caution and consult a professional if needed.
  • Seek professional assistance: If you’re unsure about performing any modifications, consider seeking help from an automotive professional or a specialized workshop. They will be able to guide you on the safest and most effective method to turn off MDS on your Ram 1500 permanently.

Remember, disabling MDS on your Ram 1500 is a personal choice, and it’s essential to understand the potential impacts on fuel efficiency and engine performance. Consider your driving preferences, consult experts if needed, and make an informed decision. Enjoy your Ram 1500 experience!

Tips for a Successful MDS Disabling Process

For a successful disabling process for MDS on a Ram 1500, follow these helpful tips to turn it off permanently. Enjoy improved performance and efficiency without the MDS system.

Remember a few essential things before permanently turning off MDS on your Ram 1500. Ensuring compatibility with your chosen method, taking safety precautions, and troubleshooting common issues can help you successfully disable MDS.

Read on to discover some tips for a smooth and hassle-free process.

Ensure the Ram 1500 is Compatible With the Chosen Method

To avoid any complications during the MDS disabling process, it’s crucial to ensure that your Ram 1500 is compatible with the method you have selected.

Not all methods work universally, so it’s essential to research and choose an approach that aligns with your specific truck model.

A quick search online or consulting the vehicle’s manual can provide valuable information about compatible methods for disabling MDS.

Safety Precautions to Take Before Making Any Changes to the Settings

Prioritizing safety is paramount before making any changes to the MDS settings. Follow these preventive measures to minimize any risks involved in the process:

  • Park your Ram 1500 on a level surface and engage the parking brake to ensure stability.
  • Disconnect the battery to prevent accidental electrocution while working on the truck’s electrical components.
  • Familiarize yourself with the vehicle’s manual to understand the location of the MDS-related components and any specific instructions for disabling the system.
  • Use proper tools and equipment to prevent injury and damage to the vehicle.

These safety precautions will protect you and your Ram 1500 and ensure a smooth disabling process.

Troubleshooting Common Issues During the MDS Disabling Process

While disabling MDS can be straightforward, you may encounter some common issues. Here are a few troubleshooting tips to address any potential complications:

  • Ensure all connections are secure: Double-check that all wires and connectors related to the MDS system are correctly connected. Loose connections can disrupt the disabling process.
  • Check for error codes: Use an OBD-II scanner to check for any error codes related to the MDS system. This will help you identify potential issues and troubleshoot accordingly.
  • Verify software compatibility: If you’re using software or a tuner to disable MDS, ensure it is compatible with your Ram 1500 computer system. Outdated or incompatible software can lead to errors.
  • Seek professional assistance: If you encounter persistent issues or are unsure about the steps involved in disabling MDS, it’s best to consult a professional mechanic or expert specializing in Ram 1500 modifications.

Following these troubleshooting tips, you can effectively address any common issues that may arise during the MDS disabling process and achieve a successful outcome.

Understanding compatibility, prioritizing safety precautions, and troubleshooting potential problems are critical to a successful MDS disabling process on your Ram 1500.

Now that you’re equipped with these tips, you can confidently begin permanently turning off MDS and optimizing your truck’s performance.

About Disabling MDS on Ram 1500

Learn how to disable MDS on your Ram 1500 permanently. Find answers to common FAQs about turning off MDS and improving your vehicle’s performance.

What Are the Potential Risks of Permanently Disabling MDS?

Disabling the Multi-Displacement System (MDS) on your Ram 1500 can have several potential risks. It’s essential to weigh these risks before making a decision. Here are some key points to consider:

  • Loss of fuel efficiency: The MDS is designed to improve fuel efficiency by deactivating cylinders when unnecessary. By disabling it, you may experience a decrease in fuel economy.
  • Increased emissions: With MDS disabled, your vehicle may produce higher emissions due to the constant operation of all cylinders, even when unnecessary.
  • Accelerated engine wear: Disabling MDS can strain your engine more frequently, as all cylinders will be activated. This increased workload can lead to accelerated wear and potential engine damage over time.
  • Potential warranty issues: Modifying or disabling factory-installed systems may void parts of your vehicle’s warranty. Understanding the warranty terms and conditions before making any changes is essential.

Will Turn Off MDS Void My Warranty?

Disabling the MDS on your Ram 1500 may impact your vehicle’s warranty coverage. Here are a few points to consider regarding warranty implications:

  • Modifications: Most vehicle warranties include provisions that restrict alterations to the original equipment. Disabling the MDS can be viewed as a modification, potentially voiding certain aspects of your warranty.
  • Repairs and maintenance: If an issue unrelated to the MDS arises, your warranty coverage should still apply. However, if the disabled MDS is deemed the cause or contributing factor to the problem, it may not be covered under warranty.
  • Consult the manufacturer: To be specific about the impact on your warranty, it is strongly recommended to consult the Ram manufacturer or authorized dealer. They can provide specific details on warranty coverage and the potential effect of disabling the MDS.

Can I Re-Enable MDS After Disabling It? If Yes, How?

Re-enabling the MDS after disabling it is possible, but the process varies depending on the specific vehicle and modifications made. Here are a few methods commonly used to re-enable MDS:

  • Engine tuning: You can adjust the vehicle’s programming to activate the MDS again by utilizing engine tuning software or aftermarket tuners. This approach typically requires advanced knowledge and experience with tuning tools.
  • Software updates: The manufacturer may release updates that allow you to re-enable the MDS. These updates can be installed by authorized dealers or technicians with the necessary tools and knowledge.
  • Resetting the vehicle’s computer: In some cases, disconnecting the vehicle’s battery for an extended period can reset the computer and restore the MDS functionality. However, this method may not work for all vehicles.

It’s essential to note that before attempting to re-enable the MDS, it’s crucial to understand the potential risks, warranty implications, and any legal restrictions associated with modifying your vehicle’s system.

Consult the manufacturer or an authorized dealer for detailed instructions and guidance on re-enabling the MDS on your specific Ram 1500 model.

Frequently Asked Questions

How do you get rid of the MDS Ram 1500?

To remove your MDS Ram 1500, follow these steps:

  1. Contact a reputable dealership or sell it privately.
  2. Advertise the vehicle online and provide accurate information.
  3. Conduct a thorough cleaning and maintenance before selling.
  4. Negotiate the price and complete the necessary paperwork for a smooth transaction.

How To Bypass MDS on Hemi?

To bypass MDS on Hemi, take these steps:

  • Install an aftermarket tuner or programmer.
  • Use it to disable the MDS system.
  • Alternatively, consider installing a custom camshaft to eliminate MDS.
  • Consult a professional mechanic or tuner for expert advice and assistance.

Can You Permanently Disable Auto Start Stop Ram 1500?

Yes, you can permanently disable the auto start-stop feature on Ram 1500.

Does MDS Save Gas?

Yes, the Multi-Displacement System (MDS) saves gas by deactivating cylinders when unnecessary, improving fuel efficiency.

How Do You Permanently Turn Off MDS on Ram 1500?

You can use a tuner or a performance chip to turn off the MDS (Multiple Displacement System) permanently on Ram 1500. These devices can reprogram the engine control unit and disable the MDS feature.


To permanently turn off MDS on a Ram 1500, you now clearly understand the steps involved. Following the outlined methods allows you to enjoy improved performance and fuel efficiency without the MDS system interfering.

Whether you use a tuner or modify the engine’s computer, options are available for every DIY enthusiast or anyone seeking professional assistance.

Remember to constantly research and gather the necessary information before modifying your vehicle. Taking appropriate precautions will ensure a smooth process and avoid any potential issues.

By disabling MDS, you can enhance the overall driving experience and fully utilize the power of your Ram 1500.

Take the necessary steps, and enjoy the benefits of your modified vehicle.

Muktadir risan is the driving force behind RoadRoverz. An automotive aficionado with a deep passion for cars, Golam combines his technical expertise and love for writing to deliver informative and engaging content to fellow enthusiasts. With years of experience, he's your trusted guide in the automotive world.