Where is the Engine Control Module located and how to replace it on Audi TT Quattro?

The ECM is located in the air plenum near the base of the windshield in the engine compartment. Before replacing the ECM, connect a diagnostic scan tool to the diagnostic plug under the left side of the dashboard and record the ECM coding data. When the connector is detached from the ECM, adaptation values are erased, but the contents of OTC memory remain intact. Switch the ignition OFF, remove the windshield wipers, and take off the rubber weather-strip from the plenum base. Carefully pull away the plenum cover from the base of the windshield, ensuring not to use a screwdriver or pry tool against the windshield glass to avoid cracking it. Disconnect the washer fluid hoses from the back of the washer jets when removing the plenum cover. For ECMs without a metal anti-theft housing, release the ECM harness connectors and use a screwdriver to press the locking lugs of the bracket to the side before removing the ECM toward the front. For ECMs with a metal anti-theft housing, a heat gun with a semicircular nozzle is necessary to remove the ECM. Press the locking lug of the bracket to the side and remove the ECM with the anti-theft housing toward the front. The ECM is secured to the metal anti-theft housing using a locking mechanism and snap-off screws coated with a locking compound. To disconnect the harness connectors from the ECM, it must be removed from the metal anti-theft housing. Position the ECM so that the locking mechanism is accessible, place a clean rag below it, and adjust the heat gun for maximum heat output. Guide the nozzle of the heat gun onto the locking mechanism threads, switch it on, and heat for approximately 20 to 25 seconds. Use vice grips to grab the screw head and remove the snap-off screw by turning it counterclockwise, repeating the procedure for the other snap-off screw. Remove the ECM locking mechanism, slide the ECM out from the metal anti-theft housing, and disconnect the harness connectors from the ECM. Installation follows the reverse order of removal, ensuring the metal anti-theft housing is reinstalled with new snap-off screws and the locking lug of the bracket is bent back. If the ECM was replaced, use a diagnostic scan tool to check the Diagnostic Trouble Code memory, erase if necessary, code the new ECM, adapt the throttle valve control module, adapt the kickdown point for vehicles with automatic transmission, and generate a readiness code.

Genuine Audi TT Quattro Engine Control Module

Engine Control Computer

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29 Engine Control Modules found

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Audi TT Quattro ECM Part Number: 8N0-997-019-PX
$1068.20 MSRP: $1381.00
You Save: $312.80 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-906-018-AT
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2001 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS
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Audi TT Quattro ECM Part Number: 8N0-997-018-QX
$1079.89 MSRP: $1390.00
You Save: $310.11 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-906-018-K
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2001 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS
View related parts
Audi TT Quattro ECM Part Number: 8N0-997-018-JX
$1079.89 MSRP: $1390.00
You Save: $310.11 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-906-018-M
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2001-2002 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS
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Audi TT Quattro ECM Part Number: 8N0-997-020-MX
$1058.40 MSRP: $1361.54
You Save: $303.14 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-997-020-KX, 8N0-906-018-BD, 8N0-997-020-AX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2003-2006 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS
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Audi TT Quattro ECM Part Number: 8N0-906-018-AN
$1399.44 MSRP: $1680.00
You Save: $280.56 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2002 Audi TT Quattro | ALMS Edition, Base | 4 Cyl 1.8 L GAS
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Audi TT Quattro ECM Part Number: 8J0-997-020-KX
$691.57 MSRP: $890.00
You Save: $198.43 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro ECM Part Number: 022-997-036-FX
$691.57 MSRP: $890.00
You Save: $198.43 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009 Audi TT Quattro | Base | 6 Cyl 3.2 L GAS
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Audi TT Quattro ECM Part Number: 022-997-036-EX
$691.57 MSRP: $890.00
You Save: $198.43 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009 Audi TT Quattro | Base | 6 Cyl 3.2 L GAS
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Audi TT Quattro ECM Part Number: 8N0-997-019-TX
$1177.10 MSRP: $1515.00
You Save: $337.90 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-906-018-BB
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2003 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS
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Audi TT Quattro ECM Part Number: 8J0-907-115-AE
$1466.78 MSRP: $1760.84
You Save: $294.06 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8J0-997-020-RX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2010 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro ECM Part Number: 8N0-997-018-LX
$1361.99 MSRP: $1630.00
You Save: $268.01 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-906-018-S
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2000-2002 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS
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Audi TT Quattro ECM Part Number: 8N0-997-018-AX
$1361.99 MSRP: $1630.00
You Save: $268.01 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-906-018-C
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2000 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS
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Audi TT Quattro ECM Part Number: 022-997-033-EX
$1358.28 MSRP: $1624.29
You Save: $266.01 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 022-997-032-TX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2004-2006 Audi TT Quattro | Base, Special Edition | 6 Cyl 3.2 L GAS
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Audi TT Quattro ECM Part Number: 8S0-906-259-T
$1651.11 MSRP: $1982.13
You Save: $331.02 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2022 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro ECM Part Number: 8S0-906-259-R-FVR
$1651.11 MSRP: $1982.13
You Save: $331.02 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2021 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro ECM Part Number: 8S0-906-259-L
$1651.11 MSRP: $1982.13
You Save: $331.02 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8S0-906-259-A
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2016-2019 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
View related parts
Audi TT Quattro ECM Part Number: 8S0-906-259-H
$1651.11 MSRP: $1982.13
You Save: $331.02 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2019-2023 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
View related parts
Audi TT Quattro ECM Part Number: 8S0-906-259-AC-FVR
$1486.00 MSRP: $1783.91
You Save: $297.91 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2023 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
View related parts
Audi TT Quattro ECM Part Number: 8N0-997-018-GX
$1457.19 MSRP: $1744.29
You Save: $287.10 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-906-018-T
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2001 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS
View related parts
Audi TT Quattro ECM Part Number: 8N0-997-020-LX
$1409.45 MSRP: $1685.71
You Save: $276.26 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Unit
- Replaces: 8N0-997-020-JX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2004-2006 Audi TT Quattro | Base | 4 Cyl 1.8 L GAS

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Audi TT Quattro Engine Control Module

Choose original equipment manufacturer Engine Control Module for great performance and strong durability. They use Audi's official craftsmanship and high-grade materials, and meet strict quality standards. Are you looking for quality Engine Control Module at a good price? Come to our online store. We carry a wide range of genuine parts for your Audi TT Quattro and the prices are competitive. Each part comes with the manufacturer's warranty. You can install with confidence and get steady results. Over time, you'll save money and avoid hassle. Keep your maintenance simple and protect your vehicle with OEM parts. Get the quality your TT Quattro needs now.

Audi TT Quattro Engine Control Module Parts and Q&A

ECM
022-997-033-EX
Q: Where is the Engine Control Module located and how to replace it on Audi TT Quattro?
A:
The ECM is located in the air plenum near the base of the windshield in the engine compartment. Before replacing the ECM, connect a diagnostic scan tool to the diagnostic plug under the left side of the dashboard and record the ECM coding data. When the connector is detached from the ECM, adaptation values are erased, but the contents of OTC memory remain intact. Switch the ignition OFF, remove the windshield wipers, and take off the rubber weather-strip from the plenum base. Carefully pull away the plenum cover from the base of the windshield, ensuring not to use a screwdriver or pry tool against the windshield glass to avoid cracking it. Disconnect the washer fluid hoses from the back of the washer jets when removing the plenum cover. For ECMs without a metal anti-theft housing, release the ECM harness connectors and use a screwdriver to press the locking lugs of the bracket to the side before removing the ECM toward the front. For ECMs with a metal anti-theft housing, a heat gun with a semicircular nozzle is necessary to remove the ECM. Press the locking lug of the bracket to the side and remove the ECM with the anti-theft housing toward the front. The ECM is secured to the metal anti-theft housing using a locking mechanism and snap-off screws coated with a locking compound. To disconnect the harness connectors from the ECM, it must be removed from the metal anti-theft housing. Position the ECM so that the locking mechanism is accessible, place a clean rag below it, and adjust the heat gun for maximum heat output. Guide the nozzle of the heat gun onto the locking mechanism threads, switch it on, and heat for approximately 20 to 25 seconds. Use vice grips to grab the screw head and remove the snap-off screw by turning it counterclockwise, repeating the procedure for the other snap-off screw. Remove the ECM locking mechanism, slide the ECM out from the metal anti-theft housing, and disconnect the harness connectors from the ECM. Installation follows the reverse order of removal, ensuring the metal anti-theft housing is reinstalled with new snap-off screws and the locking lug of the bracket is bent back. If the ECM was replaced, use a diagnostic scan tool to check the Diagnostic Trouble Code memory, erase if necessary, code the new ECM, adapt the throttle valve control module, adapt the kickdown point for vehicles with automatic transmission, and generate a readiness code.