Audi Brake Pad Wear Indicator Sensor / Wiring Harness Front, Left, Right 4H0615121J
OEM Part #: 4H0-615-121-J (4H0615121J)
This page covers one exact OEM part number. Every unit we stocked has sold.
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Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
Other Brake Pad / Shoe / Other / Misc Wire / Wiring Harness that may fit your vehicle
10-PIN Wiring Connector / Pigtail
$19.99
Fits 2009–2024 Audi, Porsche + more
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12-PIN Wiring Connector / Pigtail
$24.99
Fits 2010–2022 Audi & Volkswagen
OEM: 8K0973812A
12-PIN Wiring Connector / Pigtail
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Fits 2008–2024 Audi, Porsche + more
OEM: 4E0973812A
14-PIN Wiring Connector / Pigtail
$24.99
Fits 2009–2024 Audi & Volkswagen
OEM: 8W0973737
14-PIN Wiring Harness Connector / Pigtail
$29.99
Fits 2009–2026 Audi, Porsche + more
OEM: 3C0973737
16-PIN Obd Diagnostic Wiring Connector / Pigtail
Starting at $26.49
Fits 1993–2026 Audi & Volkswagen
OEM: 3A0972695
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The Brake Pad Wear Indicator Sensor / Wiring Harness (OEM part number 4H0615121J) plays a vital role in maintaining your Audi's braking system efficiency. Located on the front brake assembly, this component connects directly to the brake pads, monitoring their wear and signaling when replacement is necessary. Common issues requiring replacement include sensor damage or wear, leading to an alert in the vehicle's dashboard. This sensor is compatible with various Audi models such as the A8 Quattro (2011-2018), SQ5 (2014-2017), and S8 (2013-2018). It may also be referred to as the Disc Brake Pad Wear Sensor. Ensure your braking system is always performing optimally with this authentic OEM part.
Specifications
| Fits Vehicle Model | A6, A7, A8, S6, S7, S8, SQ5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H0-615-121-J (4H0615121J) |
| Compatible OEM Part No | 4H0-615-121-E, 4H0-615-121-F |
| Side | Front, Left, Right |
| Category | Wiring / Harness |
Compatible Vehicles
Fits 48 vehicle configurations across 1 make, 2011-2018.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 48 vehicle configurations — 26 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2011 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Production Date After 06/14/10 |
| 2011 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Production Date After 06/14/10 |
| 2012 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Production Date After 06/14/10 |
| 2012 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Production Date After 06/14/10 |
| 2012 | Audi | A8 | Quattro L Sedan | 6.3L W12 | For Vehicles with Production Date After 06/14/10 |
| 2013 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | For Vehicles with Production Date After 06/14/10 |
| 2013 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 06/14/10 |
| 2013 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Vehicles with Production Date After 06/14/10 |
| 2013 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 06/14/10 |
| 2013 | Audi | A8 | Quattro L Sedan | 6.3L W12 | For Vehicles with Production Date After 06/14/10 |
| 2013 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 06/14/10 |
| 2014 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | For Vehicles with Production Date After 06/14/10 |
| 2014 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 06/14/10 |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Vehicles with Production Date After 06/14/10 |
| 2014 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 06/14/10 |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | For Vehicles with Production Date After 06/14/10 |
| 2014 | Audi | A8 | Quattro L Sedan | 6.3L W12 | For Vehicles with Production Date After 06/14/10 |
| 2014 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 06/14/10 |
| 2014 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2015 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2015 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2016 | Audi | A6 | Sedan | 2.0L l4 Turbo | For Vehicles With Production date Up To 10/12/15 |
| 2016 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles With Production date Up To 10/12/15 |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Vehicles With Production date Up To 10/12/15 |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Diesel Turbo | For Vehicles With Production date Up To 10/12/15 |
| 2016 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Vehicles With Production date Up To 10/12/15 |
| 2016 | Audi | A7 | Quattro Hatchback | 3.0L V6 Diesel Turbo | For Vehicles With Production date Up To 10/12/15 |
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2016 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | |
| 2016 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2016 | Audi | S6 | Sedan | 4.0L V8 Turbo | For Vehicles With Production date Up To 10/12/15 |
| 2016 | Audi | S7 | Hatchback | 4.0L V8 Turbo | For Vehicles With Production date Up To 10/12/15 |
| 2016 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2016 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2017 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2017 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2018 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2018 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2018 | Audi | S8 | Sedan | 4.0L V8 Turbo |