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Audi A3 Drivetrain Parts & Accessories

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Mechatronics Control Unit

ES#3181695 - 02E325025ATZFB - Mechatronics Control Unit - Controls DSG shifting characteristics - Genuine Volkswagen Audi - Audi

Controls DSG shifting characteristics affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Please contact with VIN to verify correct fitment

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181695
Mfg#:
02E325025ATZFB
Special Order: No Guaranteed ETA
4% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$2475.99

This product was last offered at the strikethrough price on
06-06-2026

$2370.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BFI Heavy Weight Shift Knob - Air Leather

ES#3022034 - GS2DG - BFI Heavy Weight Shift Knob - Air Leather - Just because your car doesn't have a third pedal, doesn't mean you should be stuck with some goofy shifter. - Black Forest Industries - Audi Volkswagen

Just because your car doesn't have a third pedal, doesn't mean you should be stuck with some goofy shifter. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
3022034
Mfg#:
GS2DG
In Stock
$209.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Lower Engine Mount Twin Dogbone Insert - Version 2

ES#4662450 - VWR150004 - RacingLine Lower Engine Mount Twin Dogbone Insert - Version 2 - One of the most affordable and transformative upgrades you can do to your MQB chassis vehicle. Provides a much tighter, sharper, more responsive feeling to your car. - Racingline - Audi Volkswagen

One of the most affordable and transformative upgrades you can do to your MQB chassis vehicle. Provides a much tighter, sharper, more responsive feeling to your car. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4662450
Mfg#:
VWR150004
Ships in 2 Business Days
$132.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechatronic Unit With Software

ES#3181670 - 02E325025ATZ4T - Mechatronic Unit With Software - New mechatronics unit to replace your faulty unit - Genuine Volkswagen Audi - Audi

New mechatronics unit to replace your faulty unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with KNC transmission code - Please contact with VIN to verify fitment

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181670
Mfg#:
02E325025ATZ4T
Special Order: No Guaranteed ETA
5% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$2374.99

This product was last offered at the strikethrough price on
02-26-2026

$2253.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Axle Bolt Backing Plate - Priced Each

ES#315855 - 1K0407357D - Axle Bolt Backing Plate - Priced Each - Sits behind axle bolts to allow for proper distribution of torque - Genuine Volkswagen Audi - Audi Volkswagen

Sits behind axle bolts to allow for proper distribution of torque affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315855
Mfg#:
1K0407357D
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DSG Transmission Service Kit - With Schwaben Service Tool

ES#4158788 - G055529A2KT3 - DSG Transmission Service Kit - With Schwaben Service Tool - DSG Transmissions are recommended to be serviced every 40k miles - Assembled By ECS - Audi Volkswagen

DSG Transmissions are recommended to be serviced every 40k miles affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles from the 2019 model year with 7-Speed, DQ381 DSG Transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4158788
Mfg#:
G055529A2KT3
Ships on Jul 28, 2026
Auto Notify
ON SALE! SAVE 10%
$308.99

This product was last offered at the strikethrough price on
05-02-2026

$279.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Wheel Bearing/Hub Assembly - Priced Each

ES#2888941 - 5K0498621A - Wheel Bearing/Hub Assembly - Priced Each - Fits the left and right side - Vaico - Audi Volkswagen

Fits the left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2888941
Mfg#:
5K0498621A
In Stock at Vendor
$194.99

This product was last offered at the strikethrough price on
02-06-2026

$185.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - Stage 1 - With UniCONNECT+ Cable & DSG Software

ES#4369222 - 18TSI-IS12-1D-UC - Unitronic Performance Software - Stage 1 - With UniCONNECT+ Cable & DSG Software - Gain up to 72 horsepower and 88 lb-ft of torque on 91 Octane - Unitronic - Audi Volkswagen

Gain up to 72 horsepower and 88 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4369222
Mfg#:
18TSI-IS12-1D-UC
In Stock
ON SALE! SAVE 12%
$1264.99

This product was last offered at the strikethrough price on
05-21-2026

$1114.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Haldex Control Module Repair Set

ES#3423400 - 0CQ907554J - Haldex Control Module Repair Set - Restore power to the rear wheels and get moving - Genuine Volkswagen Audi - Audi Volkswagen

Restore power to the rear wheels and get moving affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3423400
Mfg#:
0CQ907554J
Ships in 4 Business Days
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$796.99

This product was last offered at the strikethrough price on
06-07-2026

$742.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Extreme Clutch Kit

ES#3098770 - ktsifssxKT - Stage 4 Extreme Clutch Kit - Designed for extreme power that needs to be put to the wheels. Conservatively rated at 600+ ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for extreme power that needs to be put to the wheels. Conservatively rated at 600+ ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
South Bend Clutch - Corporate Logo
ES#:
3098770
Mfg#:
KTSIFSSXKT
Ships in 1 Business Day
$2211.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Endurance Clutch Kit

ES#3098769 - ktsifsstzKT - Stage 3 Endurance Clutch Kit - Designed for dedicated track cars. Conservatively rated at 485ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for dedicated track cars. Conservatively rated at 485ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3098769
Mfg#:
KTSIFSSTZKT
Ships in 1 Business Day
$2211.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mechatronics Control Unit

ES#3181611 - 02E325025ALZAW - Mechatronics Control Unit - Controls DSG shifting characteristics - Genuine Volkswagen Audi - Audi

Controls DSG shifting characteristics affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Please contact with VIN to verify correct fitment

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181611
Mfg#:
02E325025ALZAW
Special Order: No Guaranteed ETA
4% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$2287.99

This product was last offered at the strikethrough price on
06-07-2026

$2190.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Build-Your-Own Haldex Service Kit

ES#3493436 - BY0HALDEX - Build-Your-Own Haldex Service Kit - Choose from different options to build the perfect Haldex Service Kit for you! - Assembled By ECS - Audi Volkswagen

Choose from different options to build the perfect Haldex Service Kit for you! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3493436
Mfg#:
BY0HALDEX
Ships in 1-2 days
ON SALE!
Starting at $63.84 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

MECHATRON.

ES#3470835 - 02E325025ATZ6C - MECHATRON. - Genuine Volkswagen Audi - Audi

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3470835
Mfg#:
02E325025ATZ6C
In Stock
Limited Qty Sale
$2350.99

This product was last offered at the strikethrough price on
02-26-2026

$2133.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BFI V2 Stage 1 Engine Mount

ES#4138971 - EBFI77M5401 - BFI V2 Stage 1 Engine Mount - Keep your engine planted and transfer as much power to the ground as possible - Black Forest Industries - Audi Volkswagen

Keep your engine planted and transfer as much power to the ground as possible affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
4138971
Mfg#:
EBFI77M5401
Ships on Jul 13, 2026
$299.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet + Spherical Dogbone Mount

ES#3546801 - 034-509-1031 - Billet + Spherical Dogbone Mount - Virtually eliminate wheel hop and get more traction! - 034Motorsport - Audi Volkswagen

Virtually eliminate wheel hop and get more traction! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3546801
Mfg#:
034-509-1031
Ships in 2 Business Days
$349.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Drivetrain Parts & Accessories

Put your power to the wheels where it belongs, and keep drivetrain components mounted securely for comfort and safety. Our Drivetrain Components Section has a huge assortment of parts and fluids for transmissions, differentials, driveshafts, drivetrain mounts, drivetrain bushings, and drive hubs, plus special tools to make repairs easy.

Let us help you find the parts that fit your Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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