1. Starters, Alternators, ECUs & Wiring Offers
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  3. BMW 1748401

BMW 1748401 Ecu Engine Control Module 590-55631

fits model: 325i, E36. make: Bmw. year: 1992.

1748401 Bmw 1992 E36 Sedan - Ecu Engine Control Module Oem

( Part Type: Control Ecu Engine Module ), ( Conditions Options: Ecu ), ( Genuine Oem: Yes ), ( Ipn: 590-55631 ), ( Descriptionpartcondition: Please See Pictures And Description As They Are Of The Actual Ite ), ( Manufacturer Part Number: 1748401 )

Review BMW Sedan Ecu Engine Control Module Oem fits 325I E36 1992

The BMW E36 ECU, specifically model number 1748401, is a crucial component of the engine management system in BMW E36 vehicles produced between 1992 and 1999. This Engine Control Unit is responsible for monitoring and controlling various engine functions to ensure optimal performance and adherence to emission standards.

The ECU is a sophisticated microcontroller that utilizes advanced algorithms to manage fuel injection, ignition timing, idle speed, and other engine parameters. It communicates with other vehicle systems, such as the ABS, airbag, and climate control modules, to maintain the overall health and efficiency of the vehicle.

The 1748401 ECU is a solid-state device housed in a compact, sleek casing. It features 16-bit architecture and a high-speed microprocessor, enabling it to process data quickly and accurately. The unit is equipped with a non-volatile memory, ensuring that engine settings and calibration data are retained even when the power is turned off.

The ECU is connected to various engine sensors, including the crankshaft position sensor, camshaft position sensor, throttle position sensor, oxygen sensors, and temperature sensors. It uses this data to adjust fuel injection and ignition timing in real-time, ensuring the engine runs smoothly and efficiently.

The BMW E36 ECU is known for its reliability and robustness. However, like any electronic component, it can fail due to various reasons, such as water damage, physical damage, or component aging. When this happens, it may result in issues like engine stalling, poor fuel efficiency, or check engine lights.

Replacing the ECU can be a complex process that requires specialized tools and knowledge. Therefore, it is essential to consult a professional mechanic or BMW specialist when dealing with ECU-related issues. Additionally, using an OEM (Original Equipment Manufacturer) ECU, like the BMW 1748401, ensures that the vehicle's engine management system functions as intended and maintains its resale value.

Buying a BMW E36 (1992) ECU (Engine Control Unit) engine module can be a good investment for those working on their BMW E36 vehicles or looking to restore one. Here are some pros and cons to consider before making a purchase.

Pros:

1. Improved Performance: A new ECU can help optimize engine performance by providing updated calibrations for fuel injection, ignition timing, and other engine parameters. This can lead to better fuel economy, increased power, and smoother operation.

2. Diagnostic Capabilities: A new ECU can also provide diagnostic capabilities, allowing you to identify and troubleshoot engine issues more effectively. This can save time and money in the long run.

3. OEM Quality: An OEM ECU is designed specifically for your BMW E36, ensuring a perfect fit and optimal performance.

4. Compatibility: An aftermarket ECU may not be compatible with all BMW E36 models or configurations, but an OEM ECU is guaranteed to work with your specific vehicle.

5. Reliability: An OEM ECU is built to BMW's rigorous quality standards, ensuring long-term reliability and durability.

Cons:

1. Cost: A new OEM ECU can be quite expensive, especially compared to aftermarket alternatives.

2. Availability: Depending on the specific BMW E36 model and year, an OEM ECU may be difficult to find or may require a significant wait.

3. Installation: Installing an ECU can be a complex process, requiring specialized tools and knowledge. It may be necessary to hire a professional to ensure proper installation.

4. Compatibility with Modifications: If your BMW E36 has aftermarket modifications, such as a performance chip or exhaust system, an OEM ECU may not be compatible.

5. Limited Customization: An OEM ECU may not offer the same level of customization as an aftermarket ECU.

Conclusion:

An OEM BMW E36 ECU can offer improved performance, diagnostic capabilities, and reliability, but it also comes with a higher cost and potential compatibility issues. If you're looking to restore your BMW E36 to stock condition or simply want the peace of mind that comes with OEM parts, a new ECU may be a worthwhile investment. However, if you have aftermarket modifications or are on a tight budget, an aftermarket ECU may be a more practical option. Ultimately, the decision comes down to your specific needs and priorities.

part # 1748401 prices

  • $99.99-$455.94

specifications wiringwench:

  • for models: 325i, E36
  • for makes: Bmw
  • for years: 1992
  • part type: Control Ecu Engine Module
  • conditions options: Ecu
  • genuine oem: Yes
  • interchange part number: 590-55631
  • descriptionpartcondition: Please See Pictures And Description As They Are Of The Actual Ite
  • manufacturer part number: 1748401

offer wiringwench:

  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • started: June 12, 2025
  • best offers: True
  • quantity: 1

seller wiringwench:

  • # reviews: 2556
  • rating: 98.5%

general wiringwench:

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

payments wiringwench:

  • credit card: Discover
  • wallet: Paypal
  • other

returns wiringwench:

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

shipping wiringwench:

  • type: Fixed
  • carrier: UPS
  • cost: $0.00
  • service: UPS 2nd Day Air
  • transit: 2-6 Days
  • class: Expedited
for models: 325i, e36, for makes: bmw, for years: 1992, part type: control ecu engine module, conditions options: ecu, genuine oem: yes, descriptionpartcondition: please see pictures and description as they are of the actual ite,
manufacturer: bmw, category: auto parts > car truck parts accessories > starters, alternators, ecus wiring > ecus computer modules, sku: 6466987476741632,

Bmw 1748401 Is Similar To:

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5 offers $99.99–$455.94 USD
  • Offer #1: $99.99 price + $9.35 delivery = $109.34* total. You should not rely solely on what vehicles the part fits This is a Factory OEM ECU, ECM For a BMW.+$9.35 shipping
  • Offer #2: $455.94 price + $5.00 delivery = $460.94* total. Mounting hardware is not included.+$5.00 shipping
  • Offer #3: $199.00 price + $59.00 delivery = $258.00* total. 1991 1992 BMW E36 s E34 525i M50. (Non Vanos) ECU ECM 0261200402.+$59.00 shipping
  • Offer #4: $179.00 price + $59.00 delivery = $238.00* total. 1991 1992 BMW E36 s E34 525i M50 (Non Vanos) ECU ECM 026120040 5 1735614Cheked, it is in very good working condition.+$59.00 shipping
  • Offer #5: $299.00 price + free delivery = $299.00* total. -BY PURCHASING THE ITEM, YOU AGREE TO THE FOLLOWING (09/01/1989 11/16/2011). 1 748 401 / 12.14.FREE SHIPPING