How Does the Engine Control Module (ECM) Function and how to Remove and Install on BMW M3?

The Engine Control Module (ECM) is the computer control module. The engine control module uses the Mass Air Flow to take care of fuel delivery and ignition time of the vehicle's engine. The ECM boosts the fuel mixture by adjusting the opening and closing time of the fuel injectors and when removing the ECM, let the E30 and E36 models reach normal temperature before you change the ECM to prevent poor performance.

Genuine BMW M3 Engine Control Module

Engine Control Computer

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41 Engine Control Modules found

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BMW M3 Engine Control Module
Part Number: 12147848125
$2466.78 MSRP: $3132.66
You Save: $665.88 (22%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Basic Control Unit Dme; ECM
- Replaces: 12-14-7-846-409, 12-14-7-846-903
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2008-2013 BMW M3 | Convertible(E93), Coupe(E92), Sedan(E90)
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BMW M3 Basic Control Unit DME
Part Number: 12145A53262
$2466.78 MSRP: $3132.66
You Save: $665.88 (22%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: BASIC COTROL UNIT DME; ECM
- Replaces: 12-14-5-A1D-B39, 12-14-5-A31-B06, 12-14-5-A24-A46
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2021-2025 BMW M3 | 6 Cyl 3.0 L GAS
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BMW M3 Engine Control Module
Part Number: 12141406594
$1478.79 MSRP: $1891.63
You Save: $412.84 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Basic Control Unit Dme; Computer, Control Module
- Replaces: 12-14-1-405-891, 12-14-1-406-464, 12-14-1-405-491, 12-14-1-405-854
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1997-1999 BMW M3 | Convertible(E36), Coupe(E36), Sedan(E36)
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BMW M3 DME Engine Control Module
Part Number: 12149895530
$2466.78 MSRP: $3132.66
You Save: $665.88 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Basic Control Unit Dme; Control Module, ECM
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2015-2018 BMW M3 | Sedan(F80)
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BMW M3 DME Engine Control Module
Part Number: 12141406464
$1478.79 MSRP: $1891.63
You Save: $412.84 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Basic Control Unit Dme
- Replaced by: 12141406594
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1997-1999 BMW M3 | Coupe(E36), Sedan(E36)
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BMW M3 DME Engine Control Module
Part Number: 12147836454
$2107.66 MSRP: $2716.55
You Save: $608.89 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Basic Control Unit Dme
- Replaced by: 12147837805
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
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BMW M3 Engine Electronic Control Computer Module
Part Number: 12148672514
$2466.78 MSRP: $3132.66
You Save: $665.88 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Basic Control Unit Dme; ECM
- Replaces: 12-14-8-635-896
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2015-2018 BMW M3 | Sedan(F80)
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BMW M3 Engine Control Module
Part Number: 12141405891
$1478.79 MSRP: $1891.63
You Save: $412.84 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Basic Control Unit Dme
- Replaced by: 12141406594
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1997-1999 BMW M3 | Coupe(E36), Sedan(E36)
View related parts
BMW M3 DME Engine Control Module
Part Number: 12141405854
$1478.79 MSRP: $1891.63
You Save: $412.84 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Basic Control Unit Dme
- Replaced by: 12141406594
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1997-1999 BMW M3 | Coupe(E36)
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BMW M3 Engine Control Module
Part Number: 12147842349
$1956.83 MSRP: $2522.15
You Save: $565.32 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Control Unit DME Programmed; ECM
- Replaces: 12-14-7-834-456, 12-14-7-836-475, 12-14-7-834-752, 12-14-7-837-801, 12-14-7-835-579
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
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BMW M3 Engine Control Module
Part Number: 12147842347
$1956.83 MSRP: $2522.15
You Save: $565.32 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Control Unit DME Programmed; ECM
- Replaces: 12-14-7-832-235, 12-14-7-835-577, 12-14-7-832-620, 12-14-7-833-930, 12-14-7-837-799, 12-14-7-834-454, 12-14-7-832-894, 12-14-7-834-750, 12-14-7-836-365, 12-14-7-890-700, 12-14-7-833-311, 12-14-7-836-473
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
View related parts
BMW M3 Engine Control Module
Part Number: 12147837806
$2107.66 MSRP: $2716.55
You Save: $608.89 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Basic Control Unit Dme
- Replaced by: 12147837805
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
View related parts
BMW M3 Engine Control Module
Part Number: 12147837805
$2107.66 MSRP: $2716.55
You Save: $608.89 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Basic Control Unit Dme; Control Module
- Replaces: 12-14-7-835-564, 12-14-7-836-455, 12-14-7-837-806, 12-14-7-836-454
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
View related parts
BMW M3 Engine Control Module
Part Number: 12147837801
$1956.83 MSRP: $2522.15
You Save: $565.32 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Control Unit Dme Programmed
- Replaced by: 12147842349
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
View related parts
BMW M3 Engine Control Module
Part Number: 12147837799
$1956.83 MSRP: $2522.15
You Save: $565.32 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Control Unit Dme Programmed
- Replaced by: 12147842347
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
View related parts
BMW M3 Engine Control Module
Part Number: 12147836455
$2107.66 MSRP: $2716.55
You Save: $608.89 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Basic Control Unit Dme
- Replaced by: 12147837805
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
View related parts
BMW M3 DME Engine Control Module
Part Number: 12147835564
$2107.66 MSRP: $2716.55
You Save: $608.89 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Basic Control Unit Dme
- Replaced by: 12147837805
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2001-2006 BMW M3 | Convertible(E46), Coupe(E46)
View related parts
BMW M3 Engine Control Module
Part Number: 12141407136
$1952.41 MSRP: $2511.66
You Save: $559.25 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Control Unit DME Programmed; ECM
- Replaces: 12-14-1-406-465
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1997-1999 BMW M3 | Convertible(E36), Coupe(E36), Sedan(E36)
View related parts
BMW M3 Engine Control Module
Part Number: 12141407135
$1952.41 MSRP: $2511.66
You Save: $559.25 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Control Unit DME Programmed
- Replaces: 12-14-1-406-466, 12-14-1-406-444, 12-14-1-406-212
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1997-1999 BMW M3 | Convertible(E36), Sedan(E36)
View related parts
BMW M3 Engine Control Module
Part Number: 12141406466
$1952.41 MSRP: $2511.66
You Save: $559.25 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Control Unit Dme Programmed
- Replaced by: 12141407135
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1997-1998 BMW M3 | Sedan(E36)

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1-20 of 41 Results

BMW M3 Engine Control Module

The BMW M3 Engine Control Module is the car's brain that considers the data it receives from its sensors to manage the fuel mixture, spark timing, idle speed, and more. In addition, the BMW M3 Engine Control Module takes steps to protect the engine by cutting power to cylinders that are misfiring. Through continuous reading of inputs such as oxygen, airflow, throttle position, and crank sensors, the Engine Control Module commands the injectors and coils to get the right air fuel blend and spark for every cylinder at the right moment to avoid damage and keep the power up. The BMW Engine Control Module continuously adjusts the mixture when cruising to help meet efficiency goals. Over the generations, the M3 has utilized control strategies ranging from a classic single Engine Control Module dedicated solely to engine tasks to versions with a swappable PROM chip and the integrated powertrain control module that combines transmission logic for smoother shifts. With the advancement in time, BMW made the electronics more sophisticated so the recent systems start faster and diagnose faults instantly. Thus, the M3 is ready for the daily roads and weekend sprints. This BMW computer has map storage capability, where M3 racing oriented trims feature a fully programmable Engine Control Module offering throttle curves and traction settings tweaks. The differences are all in gearbox control, chip versus software tuning, and the breadth of real time calibration.

If you are looking for OEM BMW M3 Engine Control Module, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW M3 Engine Control Module that come backed by the manufacturer's warranty.

BMW M3 Engine Control Module Parts Questions & Experts Answers

Engine Control Module
12141404766
Q:
How Does the Engine Control Module (ECM) Function and how to Remove and Install on BMW M3?
Posted by Sam O.
A:
The Engine Control Module (ECM) is the computer control module. The engine control module uses the Mass Air Flow to take care of fuel delivery and ignition time of the vehicle's engine. The ECM boosts the fuel mixture by adjusting the opening and closing time of the fuel injectors and when removing the ECM, let the E30 and E36 models reach normal temperature before you change the ECM to prevent poor performance.
Answered by BMW Parts Specialist Chaz / Dec 02, 2024