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Audi B9 RS5 Quattro 2.9T

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Audi B9 RS5 Quattro 2.9T Electrical Brake Parts & Components

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Brake Pad Wear Sensor - Rear

ES#4818681 - 8W0615121E - Brake Pad Wear Sensor - Rear - Alerts you to brake pad wear before it is critically low - Bremmen Parts - Audi

Alerts you to brake pad wear before it is critically low 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818681
Mfg#:
8W0615121E
In Stock
ON SALE!
$25.00

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

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor - Rear

ES#4031337 - 8W0615121E - Brake Pad Wear Sensor - Rear - Alerts you when your brake pads begin to wear thin - Bowa - Audi

Alerts you when your brake pads begin to wear thin

Brand:
Bowa - Corporate Logo
ES#:
4031337
Mfg#:
8W0615121E
In Stock
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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. 10X Entries Into Our F80 M3 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 - Rear

ES#3087178 - 8W0615121E - Brake Pad Wear Sensor - Rear - Alerts you when your brake pads begin to wear thin - Genuine Volkswagen Audi - Audi

Alerts you when your brake pads begin to wear thin

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3087178
Mfg#:
8W0615121E
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.

$127.99

This product was last offered at the strikethrough price on
10-07-2026

$116.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Pad Wear Sensor - Rear

ES#4345254 - 8W0615121E - Brake Pad Wear Sensor - Rear - Alerts you when your brake pads begin to wear thin - Febi - Audi

Alerts you when your brake pads begin to wear thin We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4345254
Mfg#:
8W0615121E
In Stock
$27.99

This product was last offered at the strikethrough price on
05-29-2026

$24.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Pad Wear Sensor

ES#4871974 - 4H0615121Q - Front Brake Pad Wear Sensor - Always replace your pad wear sensors when replacing pads - Bremmen Parts - Audi

Always replace your pad wear sensors when replacing pads 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871974
Mfg#:
4H0615121Q
In Stock
ON SALE! SAVE 24%
$13.99

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

$10.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Pad Wear Sensor

ES#4387924 - 4H0615121B - Front Brake Pad Wear Sensor - Always replace your pad wear sensors when replacing pads - Genuine Volkswagen Audi - Audi

Always replace your pad wear sensors when replacing pads For vehicles with ceramic disc brakes

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4387924
Mfg#:
4H0615121B
Ships in 5 Business Days
12% off MSRP

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

$126.99

This product was last offered at the strikethrough price on
08-31-2026

$111.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Pad Wear Sensor

ES#3521199 - 4H0615121Q - Front Brake Pad Wear Sensor - Always replace your pad wear sensors when replacing pads - Holstein - Audi

Always replace your pad wear sensors when replacing pads For vehicles with ceramic disc brakes

Brand:
Holstein - Corporate Logo
ES#:
3521199
Mfg#:
4H0615121Q
Ships in 2 Business Days
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Pad Wear Sensor

ES#3985109 - 4H0615121Q - Front Brake Pad Wear Sensor - Always replace your pad wear sensors when replacing pads - Pagid - Audi

Always replace your pad wear sensors when replacing pads For vehicles with ceramic disc brakes

Brand:
Pagid - Corporate Logo
ES#:
3985109
Mfg#:
4H0615121Q
Special Order: No Guaranteed ETA
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brake Light Switch

ES#4669443 - 5G0698459 - Brake Light Switch - Hall sensor found on the master cylinder which informs the computer to illuminate the brake lights - URO - Audi Volkswagen Porsche

Hall sensor found on the master cylinder which informs the computer to illuminate the brake lights 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4669443
Mfg#:
5G0698459
Back Ordered
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Pad Wear Sensor

ES#3610547 - 4H0615121Q - Front Brake Pad Wear Sensor - Always replace your pad wear sensors when replacing pads - Sadeca - Audi

Always replace your pad wear sensors when replacing pads For vehicles with ceramic disc brakes

Brand:
Sadeca
ES#:
3610547
Mfg#:
4H0615121Q
Back Ordered
$16.99 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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3088050
Mfg#:
8W0998281
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.

$1066.99

This product was last offered at the strikethrough price on
08-31-2026

$974.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi - Disc brake

ES#4901348 - 8W0615121E - Audi - Disc brake - Meyle - Audi

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4901348
Mfg#:
8W0615121E
Ships on Oct 29, 2026
$12.99 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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