AUDI 4M0907551A Engine Control Module Box 4MO

( Maximum Amperage: 7 A ), ( Programming Required: Yes ), ( Type: Engine Control Unit ), ( Manufacturer Part Number: 4M0907551A ), ( Country/region Of Manufacture: Germany )

Review AUDI Engine Control Module 4mo New Open Box fits Q7 2017–2019

The Audi 4M0 907 551A engine control module, also known as the 4MO, is a crucial component of the powertrain system in select Audi Q7 models manufactured between 2017 and 2019. This sophisticated electronic control unit (ECU) plays an essential role in managing various engine functions and ensuring optimal performance and emissions compliance.

Measuring approximately 10.6 x 5.2 x 1.8 inches (27 x 13.2 x 4.6 centimeters), the 4MO is designed with a modern, compact form factor. Its housing is engineered with high-quality materials, providing excellent resistance to harsh engine bay conditions.

The heart of the 4MO is its state-of-the-art microcontroller, which processes an astounding amount of data in real-time. This powerful processor works in harmony with an extensive network of sensors and actuators to continuously monitor and adjust engine functions. These functions include fuel injection, ignition timing, engine temperature, and emissions control, among others.

One of the most notable features of the 4MO is its integration with Audi's advanced driver assistance systems (ADAS). These systems include features such as adaptive cruise control, lane departure warning, and traffic jam assist. The 4MO processes data from various sensors to enable these advanced features, enhancing both safety and convenience for the driver.

Another important aspect of the 4MO is its connectivity. The module is equipped with a CAN bus interface, which allows it to communicate with other vehicle systems. This seamless communication ensures that all vehicle components function in harmony, leading to a more enjoyable driving experience.

When it comes to diagnostics and repair, the 4MO is well-equipped. The module has a built-in self-diagnostic function, which can be accessed through a specialized diagnostic tool. This function can help identify and troubleshoot potential issues, saving time and reducing the need for costly repairs.

In summary, the Audi 4M0 907 551A engine control module is an essential piece of technology that plays a vital role in the performance, emissions compliance, and advanced functionality of select Audi Q7 models. Its sophisticated design, powerful processing capabilities, and connectivity features make it an indispensable component of the modern automotive system.

Audi 4M0 907 551A Engine Control Module (ECM) for 2017-2019 Q7: Pros, Cons, and Conclusion

The Audi 4M0 907 551A Engine Control Module (ECM) is a critical component of the powertrain system in 2017-2019 Q7 models. This part manages various engine functions, ensuring optimal performance and emissions compliance. In this analysis, we will discuss the pros and cons of purchasing this Audi ECM.

1. Enhanced Performance: A new ECM can improve engine performance by optimizing fuel delivery, ignition timing, and other critical engine functions. This results in better acceleration, smoother operation, and an overall more enjoyable driving experience.

2. Improved Fuel Economy: A properly functioning ECM can help your engine run more efficiently, leading to better fuel economy. This can save you money at the pump over time.

3. Check Engine Light (CEL) Elimination: If your CEL is on due to a faulty ECM, replacing the part will likely turn off the warning light. This provides peace of mind and prevents potential engine damage.

4. Long-Term Savings: Replacing a faulty ECM now can help you avoid costly repairs or replacement of other components down the line that may be affected by the malfunctioning ECM.

5. OEM Part: Using an original equipment manufacturer (OEM) part, like the Audi 4M0 907 551A ECM, ensures that it is specifically designed for your vehicle and meets the manufacturer's standards for quality, fit, and function.

1. Cost: Replacing an ECM can be an expensive repair, especially for a luxury vehicle like the Audi Q7. The cost of the part itself, along with labor and diagnostic fees, can add up quickly.

2. Potential for Additional Repairs: In some cases, a faulty ECM may be a symptom of another underlying issue. Replacing the ECM without addressing the root cause could lead to additional repairs down the line.

3. Complex Repair: Installing an ECM requires specialized tools and knowledge, making it a more complex repair compared to some other vehicle components. This can add to the cost and time involved.

The Audi 4M0 907 551A Engine Control Module is a crucial component of the powertrain system in 2017-2019 Q7 models. While the cost of replacing this part can be significant, the benefits include improved performance, better fuel economy, and the elimination of the check engine light. Additionally, using an OEM part ensures a proper fit and function. However, it's essential to consider the potential for additional repairs and the complexity of the installation process before making a decision. Ultimately, if your Q7's ECM is causing issues, replacing it with a new OEM part may be the best long-term solution.

If you are experiencing issues with your Audi Q7's engine performance, check engine light, or other related symptoms, consider having the ECM inspected by a qualified mechanic. They can diagnose the issue accurately and provide you with the best course of action, whether it's replacing the ECM or addressing another underlying concern. If the ECM is determined to be the root cause, investing in a new OEM part, like the Audi 4M0 907 551A Engine Control Module, can provide numerous benefits and lead to a more enjoyable driving experience.

Details:

Please see photos for actual condition of the part, part numbers and software versions. Make sure all this numbers are the correct for your 2017 2019 Audi Q7. Brand New, new part number 4M0907551A 4MO replaces 4M0907551A, open seal/box, I ordered this for my 2018 Audi Q7 Prestige 3.0, did not need it at the end, never used, configured, coded nor programmed.

part #: 4m0907551a prices

• $71.23-$117.18

specifications ecusrush:

• for models: Q7
• for makes: Audi
• for years: 2017-2019
• maximum amperage: 7 A
• programming required: Yes
• type: Engine Control Unit
• manufacturer part number: 4M0907551A
• country/region of manufacture: Germany

seller ecusrush:

• # reviews: 119
• city: Fresno, California
• rating: 100.0%

offer ecusrush:

• availability: In Stock
• sold: 0
• started: September 11, 2025
• options: Ship-to-home
• quantity: 1
• best offers: True

shipping ecusrush:

• type: Calculated
• transit: 4-7 Days
• cost: $20.78
• class: Expedited
• service: UPS 2nd Day Air
• carrier: UPS

returns ecusrush:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

payments ecusrush:

• credit card: Diners-club
• other
• wallet: Paypal

general ecusrush:

• Car Truck Parts Accessories > Starters, Alternators, ECUs Wiring > ECUs Computer Modules
• condition: New other see details

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