How to access the clutch master cylinder by removing the Engine Control Module and electronics box on Audi A4?

The Power/rain Control Module (PCM), located within a waterproof box at the left end of the cowl area, requires reprogramming with a proprietary scan tool and cannot be replaced at home. In many models, the PCM is housed in a special metal anti-theft box, making removal extremely challenging. This procedure focuses on accessing the clutch master cylinder by removing the PCM and electronics box. Begin by disconnecting the cable from the negative battery terminal, then remove the cowl cover. Next, take off the cover from the electronics box and pry off the retaining strap from the PCM, moving it aside. Some models feature an anti-theft housing secured with shear-head bolts that need to be heated with a heat gun before being unscrewed with locking pliers, ensuring heat is only applied to the bolts not threaded into the PCM. Unplug the electrical connectors near the firewall, pull back the release tabs to detach the relay carrier from the electronics box, dislodge the grommet, and pull the wiring harness through the opening. Finally, unscrew the fasteners to remove the electronics box from the cowl area, and installation follows the reverse order of removal.

Genuine Audi Engine Control Module

Engine Control Computer

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

449 Engine Control Modules found

View related parts
Audi Cold Start Injector Part Number: 035-911-311-E
$239.01 MSRP: $334.75
You Save: $95.74 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Armature; Bushing, Cold Start Injector, ECM
- Replaced by: 021-911-311-B
Fits the following Audi Models:
- 100 | 1989-1994 | Base, CS, E, S | 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS
- 100 Quattro | 1989-1994 | Base, CS | 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS
- 200 | 1989-1991 | Base | 5 Cyl 2.2 L GAS
- 200 Quattro | 1989-1991 | 20v, 20v Avant, Avant, Base | 5 Cyl 2.2 L GAS
- 4000 Quattro | 1986-1987 | CS | 5 Cyl 2.2 L GAS
- 5000 | 1986-1988 | CS, S | 5 Cyl 2.2 L GAS, 5 Cyl 2.3 L GAS
- 5000 Quattro | 1986-1988 | CS, S | 5 Cyl 2.2 L GAS, 5 Cyl 2.3 L GAS
- 80 | 1991-1992 | Base | 5 Cyl 2.3 L GAS
- 80 Quattro | 1988-1992 | Base | 5 Cyl 2.3 L GAS
- 90 | 1993-1995, 1988-1991 | Base, CS, S, Sport | 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS
View More
View related parts
Audi ECM Part Number: 8P0-997-020-CX
$506.10 MSRP: $700.00
You Save: $193.90 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
Fits the following Audi Models:
- A3 | 2006 | Base | 4 Cyl 2.0 L GAS
View related parts
Audi ECM Part Number: 8P0-997-033-BX
$694.96 MSRP: $898.46
You Save: $203.50 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8P0-997-032-HX
Fits the following Audi Models:
- A3 | 2009 | Base | 4 Cyl 2.0 L GAS
- A3 Quattro | 2009 | Base | 4 Cyl 2.0 L GAS
View related parts
Audi ECM Part Number: 4K0-906-259-A-4K0
$1210.94 MSRP: $1453.71
You Save: $242.77 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
Fits the following Audi Models:
- A6 Quattro | 2019-2021 | Premium, Premium Plus | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 4K0-907-559-A-4K0
$720.89 MSRP: $931.98
You Save: $211.09 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
Fits the following Audi Models:
- A6 Quattro | 2019-2020 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 4M0-907-559-L-4M0
$1289.35 MSRP: $1547.84
You Save: $258.49 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
- Replaces: 4M0-907-559-L
Fits the following Audi Models:
- Q7 | 2021 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 4M0-907-559-Q-4M0
$713.30 MSRP: $922.17
You Save: $208.87 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
- Replaces: 4M0-907-559-Q
Fits the following Audi Models:
- Q7 | 2022 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 4M8-907-559-Q-4MF
$720.89 MSRP: $931.98
You Save: $211.09 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
- Replaces: 4M8-907-559-Q
Fits the following Audi Models:
- Q8 | 2022-2023 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 80A-906-259-AA-FY0
$713.30 MSRP: $922.16
You Save: $208.86 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
Fits the following Audi Models:
- Q5 | 2022 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- Q5 PHEV | 2022 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
View related parts
Audi ECM Part Number: 80A-906-259-S-FY0
$713.30 MSRP: $922.16
You Save: $208.86 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
Fits the following Audi Models:
- Q5 | 2021 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- Q5 PHEV | 2021 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
View related parts
Audi ECM Part Number: 8V0-907-115-J-8V0
$1143.67 MSRP: $1478.57
You Save: $334.90 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
- Replaces: 8V0-907-115-J
Fits the following Audi Models:
- A3 | 2019 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
- A3 Quattro | 2019 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
View related parts
Audi ECM Part Number: 04L-997-022-N
$685.95 MSRP: $886.81
You Save: $200.86 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Module; ECM
- Replaces: 04L-906-021-D
Fits the following Audi Models:
- A3 | 2015-2016 | TDI Premium, TDI Premium Plus, TDI Prestige | 4 Cyl 2.0 L DIESEL
View related parts
Audi ECM Part Number: 8W0-906-259-J
$1839.97 MSRP: $2208.84
You Save: $368.87 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
Fits the following Audi Models:
- A4 allroad | 2017-2018 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
- A5 Quattro | 2020, 2018 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
- A5 Sportback | 2018-2020 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
View More
View related parts
Audi ECM Part Number: 8N0-997-020-HX
$641.29 MSRP: $825.00
You Save: $183.71 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
Fits the following Audi Models:
- TT | 2003 | Base | 4 Cyl 1.8 L GAS
View related parts
Audi ECM Part Number: 4K0-907-551-G-4K0
$1214.93 MSRP: $1458.50
You Save: $243.57 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
Fits the following Audi Models:
- S6 | 2022 | Premium Plus, Prestige | 6 Cyl 2.9 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 4M8-907-559-M-4MF
$720.89 MSRP: $931.98
You Save: $211.09 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
- Replaces: 4M8-907-559-M
Fits the following Audi Models:
- Q8 | 2021 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 4M8-907-559-A-4MF
$713.30 MSRP: $922.17
You Save: $208.87 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
- Replaces: 4M8-907-559-A
Fits the following Audi Models:
- Q8 | 2019-2020 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 8W0-907-115-AC-8W0
$720.89 MSRP: $931.98
You Save: $211.09 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit; ECM
Fits the following Audi Models:
- A4 Quattro | 2021 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
View related parts
Audi ECM Part Number: 5G0-906-259-A
$807.34 MSRP: $1043.75
You Save: $236.41 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
Fits the following Audi Models:
- A3 Quattro | 2015-2016 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
- S3 | 2015-2016 | Premium Plus, Prestige | 4 Cyl 2.0 L GAS
View related parts
Audi ECM Part Number: 022-997-020-DX
$667.17 MSRP: $858.46
You Save: $191.29 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
Fits the following Audi Models:
- A3 Quattro | 2009 | Base | 4 Cyl 2.0 L GAS, 6 Cyl 3.2 L GAS

| Page 1 of 23 |Next >

1-20 of 449 Results

Audi Engine Control Module

Audi Engine Control Module provides immediate control over combustion to provide every driver with smoother power and improved fuel economy. Audi has won the respect of the world with their ability to combine bold design with intelligent technology from the legendary Quattro all-wheel drive that grips in rain to the Virtual Cockpit turning gauges into moving graphics, and their push towards e-tron electric models indicates a clear path to a cleaner future. The fun comes without compromising comfort either as sturdy chassis tuning makes rides calm and precise steering invites confident cornering, making Audi a brand that balances luxury and sport with ease. Reliability is increased by this same culture of innovation, too, so owners of an Audi know that it will start quickly on a cold morning and respond eagerly on an open highway. Under the hood, the Engine Control Module is the digital brain, which reads data from airflow, throttle, and temperature sensors many times each second. With that information, the Engine Control Module fine-tunes injector pulses, adjusts spark timing, and even coordinates with automatic shifting to keep the drivetrain protected and emissions low. Modern coding allows the Audi Engine Control Module to learn about small changes in parts over time, so performance remains very sharp without requiring constant attention. Due to its function across gasoline, hybrid, and future electric powertrains, it supports the entire Audi lineup and assists every model to meet tough efficiency rules while keeping the fun alive.

Stick with genuine OEM Engine Control Module when you need quality that holds up. Audi crafts these parts to hit strict factory specs for every single unit. They also run each part through rigorous checks during production to maintain high quality. You can find exact Audi Engine Control Module you need in our huge stock at AudiPartsGiant.com. You'll love our low, economical prices too. Every OEM part carries a real manufacturer's warranty, so you can buy with confidence. Returns aren't a headache here because our policy is simple. Plus, our speedy delivery gets orders out fast. Shop today and buy with total peace of mind.

Audi Engine Control Module Parts and Q&A

ECM
8E0-909-518-AF
Q: How to access the clutch master cylinder by removing the Engine Control Module and electronics box on Audi A4?
A:
The Power/rain Control Module (PCM), located within a waterproof box at the left end of the cowl area, requires reprogramming with a proprietary scan tool and cannot be replaced at home. In many models, the PCM is housed in a special metal anti-theft box, making removal extremely challenging. This procedure focuses on accessing the clutch master cylinder by removing the PCM and electronics box. Begin by disconnecting the cable from the negative battery terminal, then remove the cowl cover. Next, take off the cover from the electronics box and pry off the retaining strap from the PCM, moving it aside. Some models feature an anti-theft housing secured with shear-head bolts that need to be heated with a heat gun before being unscrewed with locking pliers, ensuring heat is only applied to the bolts not threaded into the PCM. Unplug the electrical connectors near the firewall, pull back the release tabs to detach the relay carrier from the electronics box, dislodge the grommet, and pull the wiring harness through the opening. Finally, unscrew the fasteners to remove the electronics box from the cowl area, and installation follows the reverse order of removal.