1. ECUs & Computer Modules Deals
  2. sku: 9101838757047563
  3. AUDI LKQ394489988

AUDI Engine Control Module Ecu 590-12643 61K LKQ394489988

fits model: S5. make: Audi. year: 2021.

Lkq394489988 Audi 590-12643 2021 S5 Engine Computer Control Module Ecu 61k Miles Oe -

( Part Type: Control Engine Module Ecu ), ( Ipn: 590-12643 ), ( Manufacturer Warranty: 6 Month ), ( Warranty Length: 6 Month Warranty )

Review AUDI Engine Computer Control Module Ecu 61k Miles Oe fits S5 2021

The Audi 590-12643 engine control module, also known as the ECU or Engine Control Unit, is a crucial component of the powertrain system in select Audi S5 models produced in 2021. This ECU, with the LKQ394489988 identifier, is responsible for managing various engine functions and ensuring optimal performance.

The ECU is a sophisticated electronic control unit that receives input from various sensors, including the crankshaft position sensor, camshaft position sensor, and oxygen sensors, among others. It processes this data in real-time and adjusts engine functions such as fuel injection, ignition timing, and engine speed (RPM) accordingly. By doing so, it helps maintain ideal engine performance and efficient fuel consumption.

This specific ECU, the 590-12643, is a 61k version, meaning it has a 61-kilobyte flash memory size. This memory is essential for storing and executing the program that controls the engine's functions. Updating the ECU software, if necessary, can be done using specialized tools and the appropriate update files.

The 2021 Audi S5 ECU, with the LKQ394489988 identifier, is a high-quality, OEM (Original Equipment Manufacturer) part designed to function seamlessly within the vehicle's powertrain system. It is engineered to meet the stringent standards of Audi, ensuring reliable and efficient engine operation.

Additionally, this ECU is considered a LKQ (Like Kind and Quality) part, meaning it is a used or reconditioned part that has been tested and deemed equivalent to a new OEM part in terms of functionality and performance. This can be an economical alternative to purchasing a new ECU while still maintaining the desired level of reliability and functionality for your Audi S5.

In summary, the Audi 590-12643 engine control module, LKQ394489988, is a vital component of the powertrain system found in select 2021 Audi S5 models. This OEM 61k ECU manages engine functions and ensures optimal performance through real-time data processing and adjustments. With its LKQ designation, it offers a cost-effective alternative to a new ECU while maintaining the desired level of reliability and functionality.

The Audi 590-12643 2021 S5 Engine Control Module ECU 61K LKQ394489988 is a crucial component of your Audi S5's on-board diagnostic system. This part manages various engine functions, and its failure can lead to several driving issues. If you're considering purchasing a used or remanufactured ECU for your Audi S5, here are some pros and cons to help you make an informed decision.

Pros:

1. Cost-effective: Buying a used or remanufactured ECU can help you save a significant amount of money compared to purchasing a new one from an Audi dealership or authorized repair shop.

2. Availability: Aftermarket ECUs are widely available from various sources, making it easier to find a compatible and functional part for your vehicle.

3. Quick fix: Installing a used or remanufactured ECU can be a faster solution than waiting for an OEM part to be delivered or dealing with lengthy repair shop appointments.

Cons:

1. Potential compatibility issues: Using a non-OEM ECU may lead to compatibility issues with other systems in your vehicle, which can cause unexpected malfunctions or warning lights.

2. Lack of warranty: Aftermarket ECUs usually don't come with the same level of warranty coverage as OEM parts, which can leave you responsible for any additional repair costs if the part fails.

3. Risk of unintended consequences: Installing a used or remanufactured ECU without proper knowledge or expertise can lead to unintended consequences, such as reduced vehicle performance, increased fuel consumption, or even safety concerns.

Conclusion:

While purchasing a used or remanufactured Audi S5 Engine Control Module ECU 590-12643 61K LKQ394489988 can save you money and provide a quick solution, it's essential to consider the potential risks and compatibility issues. If you're not confident in your ability to install the part or have concerns about compatibility, it may be best to consult with a professional mechanic or consider purchasing a new OEM part. Ultimately, the decision depends on your budget, time constraints, and willingness to accept the potential risks associated with using a non-OEM ECU.

Details:

No photos of the actual Engine Control Unit ECU are available. ATTENTION: Stock photo shows multiple items. This is NOT a manufacturer part number, and can be disregarded. Will fit: Audi S5 2021 - 2021 Electronic Control Module; 3.0L. This listing is for 1 ITEM ONLY, Some modules may need to be reprogrammed at a service center.

part #: lkq394489988 prices

  • $285.00-$299.98

specifications ecusrush:

  • for models: S5
  • for makes: Audi
  • for years: 2021
  • part type: Control Engine Module Ecu
  • interchange part number: 590-12643
  • manufacturer warranty: 6 Month
  • warranty length: 6 Month Warranty

shipping ecusrush:

  • carrier: UPS
  • cost: $0.00
  • transit: 4-8 Days
  • service: UPS Ground
  • type: Fixed
  • class: Standard

general ecusrush:

  • condition: Used
  • Car Truck Parts Accessories > Starters, Alternators, ECUs Wiring > ECUs Computer Modules

seller ecusrush:

  • rating: 92.4%
  • # reviews: 459344
  • city: Conway, Arkansas

offer ecusrush:

  • options: Ship-to-home
  • quantity: 1
  • started: July 18, 2025
  • sold: 0
  • availability: In Stock

returns ecusrush:

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

payments ecusrush:

  • credit card: Mastercard
  • wallet: Apple-pay
  • other
for models: s5, for makes: audi, for years: 2021, part type: control engine module ecu, manufacturer warranty: 6 month, warranty length: 6 month warranty,
category: auto parts > car truck parts accessories > starters, alternators, ecus wiring > ecus computer modules, sku: 9101838757047563,

Audi LKQ394489988 Is Similar To:

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2 offers $285.00–$299.98 USD
  • Used. Offer #1 priced at $285.00 + $0.00 delivery = $285.00* total. ***NOTES*** THIS SALE IS FOR THE ENGINE CONTROL MODULE FROM THE PICTURED VEHICLE.FREE SHIPPING
  • Used. Offer #2 priced at $299.98 + $0.00 delivery = $299.98* total. FREE SHIPPING

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