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Engine Control Module (ECM)
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2012 - 2016 BMW Z4 Engine Control Module (ECM) (OEM)

Only 1 left in stock
$96.95

⚠️ ELECTRONIC MODULE NOTICE

This module may require programming to your vehicle by a dealer or qualified technician with professional diagnostic equipment.

  • Ships in a sealed inspection bag for visual inspection
  • Returns not accepted if inspection bag has been opened
  • "Needs programming" is not grounds for return
  • If told the module "won't program," contact us before returning
  • Defective units replaced ONLY ONCE, under warranty

ℹ️ Product Notes

This is a used part. This is the main computer for your engine (Engine Control Module). It was running well when removed. This is the MEVD172P module type. You will likely need a mechanic to reprogram this computer so it works correctly with your vehicle.

Requires professional programming to your vehicle's VIN. Fits 2.0L Turbo (N20/N26) engines only. Match your original part number exactly.

Original Part #(s): 12148610636, 12148614949, 12148617375, 12148621008, 12148624489, 12148624812, 12148626171, 12148626765, 12148631689, 12148639594, 12148664660
Condition: Excellent (A)
Like new, minimal to no wear
82,018 miles
Odometer reading when part was removed
See Other BMW Z4 Engine Control Module (ECM)s
SKU #
5908245-24916-095

Why Buy Used OEM Parts?

✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.

✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.

✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.

✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.

✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!

🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!

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Vehicle Fitment Guide

This part fits the following vehicles:

BMW
Z4 2012-2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
sDrive20i Convertible 2012 - 2013 L4 2.0L Turbo RWD | Automatic & Manual | Fits 2.0L 4-cylinder engine only
sDrive28i Convertible 2012 - 2016 L4 2.0L Turbo RWD | Automatic & Manual | Fits 2.0L 4-cylinder engine only
Design Pure Traction Convertible 2014 - 2016 L4 2.0L Turbo RWD | Automatic | Fits 2.0L 4-cylinder engine only
Design Pure Traction Convertible 2014 L4 2.0L Turbo RWD | Manual | Fits 2.0L 4-cylinder engine only
M Sport Convertible 2014 - 2016 L4 2.0L Turbo RWD | Automatic & Manual | Fits 2.0L 4-cylinder engine only
sDrive18i Convertible 2014, 2016 L4 2.0L Turbo RWD | Automatic | Fits 2.0L 4-cylinder engine only
sDrive18i Convertible 2014 L4 2.0L Turbo RWD | Manual | Fits 2.0L 4-cylinder engine only
sDrive18iA Convertible 2015 L4 2.0L Turbo RWD | Automatic | Fits 2.0L 4-cylinder engine only

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Symptoms & Diagnosis

Warning Signs of ECM Failure

  • Your car won't start.
  • The check engine light is on.
  • Your car stalls or runs rough.
  • You have poor gas mileage.
  • The car fails an emissions test.
  • The car is stuck in "limp mode" with reduced power.
  • The engine misfires.

Testing the ECM

It can be tricky to know if the ECM is the problem. Here's how to check:

  1. Check the Basics: Make sure the battery, alternator, and spark plugs are working correctly. A weak battery can cause ECM problems.
  2. Scan for Codes: Use an OBD-II scanner to read the trouble codes from the ECM. This will give you clues about what's wrong.
  3. Inspect Wiring: Check the wiring harness and connectors for damage, corrosion, or loose connections.
  4. Professional Testing: A mechanic can use specialized equipment to test the ECM's inputs and outputs.

Common Causes of ECM Failure

  • Overheating: High temperatures can damage the ECM's internal components.
  • Voltage Spikes: Electrical surges can fry the ECM.
  • Water Damage: Moisture can corrode the ECM's circuits.
  • Vibration: Constant vibration can weaken the ECM's connections.
  • Age: Like any electronic component, ECMs can fail over time.

Buyer's Checklist

What to Look For

  • Correct Part: Make sure the part is the right one for your car's year and model.
  • Warranty: Check if the part comes with a warranty.
  • Condition: If buying a used part, check for any signs of damage or corrosion.
  • Reputation: Buy from a trusted seller with good reviews.

Quality Indicators

  • OEM Markings: Original Equipment Manufacturer parts have the manufacturer's logo and part number.
  • Testing: Ask if the part has been tested to ensure it's working properly.
  • Appearance: The part should look clean and undamaged.

What's Included

  • The Engine Control Module (ECM) itself.
  • Sometimes, the ECM may need to be programmed to your specific vehicle. This is usually NOT included and will need to be done separately.

Installation Overview

Difficulty Level and Estimated Time

  • Difficulty: Medium
  • Estimated Time: 1-3 hours

Special Tools Needed

  • Socket set
  • Screwdrivers
  • OBD-II scanner
  • Possibly programming equipment (depending on the vehicle and ECM)

Critical Steps and Tips

  1. Disconnect the Battery: Always disconnect the negative battery cable before working on electrical components.
  2. Locate the ECM: The ECM is usually located under the dashboard, in the engine compartment, or under a seat. Consult your car's repair manual.
  3. Remove the Old ECM: Disconnect the wiring harness and remove the mounting bolts.
  4. Install the New ECM: Connect the wiring harness and install the mounting bolts.
  5. Reconnect the Battery: Reconnect the negative battery cable.
  6. Programming: The ECM may need to be programmed to your car. This can be done by a mechanic or with a specialized programming tool.

DIY or Professional Installation?

Replacing an ECM can be done by a skilled DIYer. However, professional installation is recommended, especially if programming is required. Incorrect programming can damage the ECM or your car.

Buying Options

Compare: Used OEM, New Aftermarket

| Feature | Used OEM | New Aftermarket along with the rest of the team.

Used OEM: Best Value

Get genuine factory parts at a fraction of the cost. These parts have been tested and inspected to ensure they meet quality standards. You get the reliability of an OEM part without the high price tag.

New Aftermarket: Brand New Option

These are brand new parts made by third-party manufacturers to meet or exceed OE specifications. They offer a fresh start for your vehicle's ECM system.

Typical Lifespan

How Long Does It Last?

An ECM can last for the entire life of the vehicle, often 10-15 years or more.

Factors Affecting Longevity

  • Operating Temperature: Extreme heat can shorten the ECM's lifespan.
  • Electrical Issues: Voltage spikes and surges can damage the ECM.
  • Moisture: Water damage can cause corrosion and failure.
  • Vibration: Excessive vibration can weaken connections.
  • Quality of Components: Higher-quality ECMs tend to last longer.

Price Ranges

Budget vs. Mid-Range vs. Premium

  • Used OEM: $150 - $400
  • New Aftermarket: $250 - $600

Labor Cost Considerations

Labor costs for ECM replacement can range from $100 to $300, depending on the shop and the complexity of the job. Programming can add to the labor cost.

Total Job Cost Estimates

  • Used OEM: $250 - $700 (including labor)
  • New Aftermarket: $350 - $900 (including labor)

Vehicle-Specific Notes

Known Issues

Some BMW models from this era are known to have issues with oil leaks that can contaminate the ECM. Also, some models have wiring harness issues that can cause intermittent ECM problems.

TSBs and Common Complaints

Check for any Technical Service Bulletins (TSBs) related to the ECM on your specific BMW model. Common complaints include unexplained stalling, misfires, and difficulty starting.

Verification After Install

How to Confirm Proper Operation

  • Check Engine Light: Make sure the check engine light is off after installation and programming.
  • Smooth Running: The engine should run smoothly without stalling or misfiring.
  • Scan for Codes: Use an OBD-II scanner to check for any new trouble codes.
  • Test Drive: Take the car for a test drive to make sure it performs normally.

What to Look/Listen For

  • Normal Idle: The engine should idle smoothly at the correct RPM.
  • Good Acceleration: The car should accelerate smoothly without hesitation.
  • No Misfires: Listen for any signs of misfiring, such as a rough idle or a loss of power.
  • Proper Shifting: The transmission should shift smoothly and correctly.

FAQ

Q: Will this ECM need to be programmed?
A: It depends. Some ECMs are plug-and-play, while others require programming to match your car's VIN and options. Check with your mechanic or the seller to confirm.

Q: How do I know if my ECM is bad?
A: Common symptoms include a check engine light, stalling, misfires, and difficulty starting. Have a mechanic diagnose the problem to confirm.

Q: Can I install this ECM myself?
A: If you are comfortable working on cars and have the necessary tools, you can install the ECM yourself. However, professional installation is recommended, especially if programming is required.

Q: What if the ECM doesn't fix my problem?
A: There could be other issues causing the problem. Have a mechanic diagnose the car to find the root cause.

Q: Does this ECM come with a warranty?
A: Warranty coverage varies depending on the seller and the type of part (used or new). Check the warranty details before you buy.

Part Specifications

OEM Part Numbers:

  • BMW: 12148610636, 12148614949, 12148617375, 12148621008, 12148624489, 12148624812, 12148626171, 12148626765, 12148631689, 12148639594, 12148664660

Fits Years: 2012 2013 2014 2015 2016

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