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Audi B9 SQ5 Quattro 3.0T

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Audi B9 SQ5 Quattro 3.0T Electrical Brake Parts & Components

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Electrical Connector Kit - Housing With Pins & Wire Seals (3)

ES#4460500 - 3D0973703-KIT - Electrical Connector Kit - Housing With Pins & Wire Seals (3) - Includes connector housing with terminals and seals. Great for an OE replacement or custom upgrades. - ECS - Audi Volkswagen

Includes connector housing with terminals and seals. Great for an OE replacement or custom upgrades. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Please reference original part number from existing connector to confirm fitment, prior to ordering. *OEM

Brand:
ECS - Corporate Logo
ES#:
4460500
Mfg#:
3D0973703-KIT
In Stock
ON SALE! SAVE 25%
$24.99

This product was last offered at the strikethrough price on
06-13-2026

$18.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor - Priced Each

ES#4871975 - 4M0615121AB - Brake Pad Wear Sensor - Priced Each - Always replace when replacing pads. - Bremmen Parts - Audi

Always replace when replacing pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871975
Mfg#:
4M0615121AB
In Stock
ON SALE! SAVE 15%
$10.99

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

$9.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Brake Pad Wear Sensor

ES#4871984 - 80A615121 - Rear Brake Pad Wear Sensor - Indicates when the rear brake pads need replaced - Bremmen Parts - Audi

Indicates when the rear brake pads need replaced affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871984
Mfg#:
80A615121
In Stock
ON SALE! SAVE 19%
$22.99

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

$18.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor with Heavy Duty Connector - Priced Each

ES#4066644 - 4M0615121AB - Brake Pad Wear Sensor with Heavy Duty Connector - Priced Each - Always replace when replacing pads. - Hamburg Tech - Audi

Always replace when replacing pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4066644
Mfg#:
4M0615121AB
In Stock
$10.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Pad Sensor - Priced Each

ES#3172429 - 4G0615121D - Front Brake Pad Sensor - Priced Each - Recommend replacing with every brake pad service - ATE - Audi

Recommend replacing with every brake pad service affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ATE - Corporate Logo
ES#:
3172429
Mfg#:
4G0615121D
Ships in 3 Business Days
$23.99

This product was last offered at the strikethrough price on
05-07-2026

$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Brake Pad Wear Sensor

ES#4140360 - 80A615121 - Rear Brake Pad Wear Sensor - Indicates when the rear brake pads need replaced - Bowa - Audi

Indicates when the rear brake pads need replaced affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bowa - Corporate Logo
ES#:
4140360
Mfg#:
80A615121
Ships in 2 Business Days
$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor - Priced Each

ES#3417346 - 4M0615121AB - Brake Pad Wear Sensor - Priced Each - Always replace when replacing pads. - Genuine Volkswagen Audi - Audi

Always replace when replacing pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3417346
Mfg#:
4M0615121AB
Ships in 1-2 days
8% off MSRP

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

$170.99

This product was last offered at the strikethrough price on
06-29-2026

$156.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor - Priced Each

ES#3648467 - 4M0615121AB - Brake Pad Wear Sensor - Priced Each - Always replace when replacing pads. - Bowa - Audi

Always replace when replacing pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bowa - Corporate Logo
ES#:
3648467
Mfg#:
4M0615121AB
Ships in 2 Business Days
$31.46

This product was last offered at the strikethrough price on
05-20-2026

$31.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Brake Pad Wear Sensor

ES#3212676 - 80A615121 - Rear Brake Pad Wear Sensor - Indicates when the rear brake pads need replaced - Genuine Volkswagen Audi - Audi

Indicates when the rear brake pads need replaced affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3212676
Mfg#:
80A615121
In Stock
9% off MSRP

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

$116.99

This product was last offered at the strikethrough price on
06-29-2026

$106.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Pad Sensor

ES#2987770 - 4G0615121D - Front Brake Pad Sensor - Recommend replacing with every brake pad service - Genuine Volkswagen Audi - Audi

Recommend replacing with every brake pad service affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2987770
Mfg#:
4G0615121D
Ships in 3 Business Days
9% off MSRP

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

$66.99

This product was last offered at the strikethrough price on
03-13-2026

$61.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor - Priced Each

ES#4345253 - 4M0615121AB - Brake Pad Wear Sensor - Priced Each - Always replace when replacing pads. - Febi - Audi

Always replace when replacing pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4345253
Mfg#:
4M0615121AB
In Stock
ON SALE!
$13.99

This product was last offered at the strikethrough price on
06-25-2026

$13.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor With Heavy Duty Connector - Set Of Two

ES#5375162 - 4m0615121absKT - Brake Pad Wear Sensor With Heavy Duty Connector - Set Of Two - Always replace when replacing pads. - Hamburg Tech - Audi

Always replace when replacing pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hamburg Tech - Corporate Logo
ES#:
5375162
Mfg#:
4M0615121ABSKT
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor - Priced Each

ES#4020260 - 4M0615121AB - Brake Pad Wear Sensor - Priced Each - Always replace when replacing pads. - Sadeca - Audi

Always replace when replacing pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Sadeca
ES#:
4020260
Mfg#:
4M0615121AB
Ships in 4 Business Days
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor - Priced Each

ES#3648428 - 4M0615121AB - Brake Pad Wear Sensor - Priced Each - Always replace when replacing pads. - Original Equipment Supplier - Audi

Always replace when replacing pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
3648428
Mfg#:
4M0615121AB
Ships in 1-2 days
$128.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Parking Brake Motor - Priced Each

Fits the left and right rear calipers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3088050
Mfg#:
8W0998281
Ships in 3 Business Days
5% off MSRP

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

$1066.99

This product was last offered at the strikethrough price on
06-29-2026

$1012.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi - Disc brake

ES#4901284 - 80A615121 - Audi - Disc brake - Meyle - Audi

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4901284
Mfg#:
80A615121
Special Order: No Guaranteed ETA
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Electrical Brake Parts & Components

From fluid level senders to pad wear sensors, ECS has replacement electrical parts for your brake system. Count on us for the right parts for your German car.

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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