Holstein 2BWS0502 Disc Brake Pad Wear Sensor - Rear or Rear Right
OE Quality 60-Day Returns
Holstein
 Holstein Parts

Holstein 2BWS0502 Disc Brake Pad Wear Sensor - Rear or Rear Right

Brand Holstein 2BWS0502
Position Rear Right and Rear
Product line Holstein Parts
Fits Audi · 115 vehicles

OE-style replacement. Holstein Parts catalog identification for brake wear sensor applications.

Rear brake monitoring. Tracks pad wear status for select disc brake setups.

Part number 2BWS0502. Use this reference to match the correct sensor listing.

Cross-references 80A-615-121 and 80A615121 for the same application. See all 2.

$20.47Free shipping
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Step 2 — Quantity
Disc Brake Pad Wear Sensors are typically replaced in pairs, axle by axle.
Order total $20.47
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Disc Brake Pad Wear Sensor options

Overview

Holstein disc brake pad wear sensor 2BWS0502 is a rear brake sensor for Audi applications with harness-equipped fitments. It is listed across multiple Audi models, including A6 allroad, A6 Quattro, Q5, and e-tron variants, with rear and rear-right positions depending on the vehicle configuration.

Key Features

  • Disc brake pad wear sensor for rear brake monitoring
  • Fits Audi applications with harness notes where specified
  • Coverage includes standard disc brake configurations and select ceramic brake exclusions
  • Part number 2BWS0502 for direct catalog matching
  • Holstein Parts branding for OE-style replacement identification

Fitment Details

Fits 2025-2026 Audi A6 allroad, rear. Fits 2025-2026 Audi A6 Quattro, rear. Fits 2025 Audi A7 Sportback, rear. Fits 2025 Audi Q5, rear. Fits 2025 Audi Q5 PHEV, rear. Fits 2025 Audi Q5 Sportback, rear. Fits 2025 Audi Q8 e-tron Sportback, rear. Fits 2025 Audi S6, rear. Fits 2025 Audi S7 Sportback, rear. Fits 2025 Audi SQ5, rear. Fits 2025 Audi SQ5 Sportback, rear. Fits 2025 Audi SQ8 e-tron Sportback, rear. Fits 2024 Audi A6, rear. Fits 2020-2024 Audi A6 allroad, rear. Fits 2021-2024 Audi A6 Quattro, rear. Fits 2021-2024 Audi A7 Sportback, rear. Fits 2021-2024 Audi Q5, rear. Fits 2020-2024 Audi Q5 PHEV, rear. Fits 2021-2024 Audi Q5 Sportback, rear. Fits 2024 Audi Q8 e-tron, rear. Fits 2024 Audi Q8 e-tron Sportback, rear. Fits 2021-2024 Audi S6, rear. Fits 2023-2024 Audi S7 Sportback, rear. Fits 2024 Audi SQ5, rear right. Fits 2024 Audi SQ5 Sportback, rear right. Fits 2024 Audi SQ8 e-tron, rear. Fits 2024 Audi SQ8 e-tron Sportback, rear. Fits 2022-2023 Audi A6, rear right. Fits 2021-2023 Audi e-tron Quattro, rear. Fits 2022-2023 Audi e-tron S, rear. Fits 2022-2023 Audi e-tron S Sportback, rear. Fits 2020-2023 Audi e-tron Sportback, rear. Fits 2021-2023 Audi SQ5, rear. Fits 2021-2023 Audi SQ5 Sportback, rear. Fits 2022 Audi S7 Sportback, rear right. Fits 2021 Audi A6, rear right. Fits 2019-2020 Audi A6 Quattro, rear right. Fits 2019-2020 Audi A7 Sportback, rear right. Fits 2019-2020 Audi e-tron Quattro, rear right. Fits 2019-2020 Audi Q5, rear right. Fits 2020 Audi S6, rear right. Fits 2020 Audi S7, rear right. Fits 2020 Audi S7 Sportback, rear right. Fits 2019-2020 Audi SQ5, rear right. Fits 2019 Audi A6 Quattro, rear right. Fits 2018-2020 Audi Q5, rear right. Fits 2018-2020 Audi SQ5, rear right. Fits 2018 Audi Q5, rear right. Fits 2018 Audi SQ5, rear right. Fits 2017 Audi Q5, rear right. Fits 2017 Audi SQ5, rear.

What It Helps Address

  • Brake pad wear warning light concerns
  • Sensor signal loss from damaged rear brake wear wiring
  • Incorrect wear indication after brake service
  • Replacement needs for worn or broken brake pad sensors
  • Fitment matching for Audi rear brake sensor applications

Installation Notes

Verify the vehicle’s brake configuration, including rear brake type and any ceramic brake exclusions, before ordering. Several listings specify harness use or rear-right placement, so match the exact fitment row to the vehicle application and brake setup. Confirm the part number 2BWS0502 against the catalog listing before installation.

Quality Assurance

Holstein Parts identifies this sensor as an OE-style replacement part for cataloged Audi brake wear applications. Cross-reference part numbers include 80A-615-121 and 80A615121 for the same application.

Related reading

This part fits 115 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2026AudiA6 allroad3.0LV6Rearwith Harness; Holstein Parts
2026AudiA6 Quattro3.0LV6Rearwith Harness; Holstein Parts
2025AudiA6 allroad3.0LV6Rearwith Harness; Holstein Parts
2025AudiA6 Quattro3.0LV6Rearwith Harness; Holstein Parts
2025AudiA7 Sportback3.0LV6Rearwith Harness; Holstein Parts
2025AudiQ52.0LL4Rearwith Harness; Holstein Parts
2025AudiQ5 PHEV2.0LL4Rearwith Harness; Holstein Parts
2025AudiQ5 Sportback2.0LL4Rearwith Harness; Holstein Parts
2025AudiQ8 e-tron Sportback-L--Rearwith Harness; Holstein Parts
2025AudiS62.9LV6Rearwith Harness; Holstein Parts
2025AudiS7 Sportback2.9LV6Rearwith Harness; Holstein Parts
2025AudiSQ53.0LV6Rearwith Harness; Holstein Parts
2025AudiSQ5 Sportback3.0LV6Rearwith Harness; Holstein Parts
2025AudiSQ8 e-tron Sportback-L--Rearwith Harness; Holstein Parts
2024AudiA62.0LL4Rearwithout Ceramic Brake; Holstein Parts
2024AudiA6 allroad——RearHolstein Parts
2024AudiA6 Quattro——RearHolstein Parts
2024AudiA7 Sportback——RearHolstein Parts
2024AudiQ5——RearHolstein Parts
2024AudiQ5 PHEV——RearHolstein Parts
2024AudiQ5 Sportback——RearHolstein Parts
2024AudiQ8 e-tron——RearHolstein Parts
2024AudiQ8 e-tron Sportback——RearHolstein Parts
2024AudiS6——RearHolstein Parts
2024AudiS7 Sportback——RearHolstein Parts
2024AudiSQ5——Rear RightHolstein Parts
2024AudiSQ5 Sportback——Rear RightHolstein Parts
2024AudiSQ8 e-tron——RearHolstein Parts
2024AudiSQ8 e-tron Sportback——RearHolstein Parts
2023AudiA62.0LL4Rear Rightwithout Ceramic Brake; Holstein Parts
2023AudiA6 allroad——RearHolstein Parts
2023AudiA6 Quattro3.0LV6RearHolstein Parts
2023AudiA7 Sportback——RearHolstein Parts
2023Audie-tron Quattro-L--RearHolstein Parts
2023Audie-tron S-L--RearHolstein Parts
2023Audie-tron S Sportback-L--RearHolstein Parts
2023Audie-tron Sportback-L--RearHolstein Parts
2023AudiQ52.0LL4RearHolstein Parts
2023AudiQ5 PHEV2.0LL4RearHolstein Parts
2023AudiQ5 Sportback2.0LL4RearHolstein Parts
2023AudiS62.9LV6RearHolstein Parts
2023AudiS7 Sportback2.9LV6RearHolstein Parts
2023AudiSQ53.0LV6RearHolstein Parts
2023AudiSQ5 Sportback3.0LV6RearHolstein Parts
2022AudiA62.0LL4Rear Rightwithout Ceramic Brake; Holstein Parts
2022AudiA6 allroad——RearHolstein Parts
2022AudiA6 Quattro3.0LV6RearHolstein Parts
2022AudiA7 Sportback——RearHolstein Parts
2022Audie-tron Quattro-L--RearHolstein Parts
2022Audie-tron S-L--RearHolstein Parts
2022Audie-tron S Sportback-L--RearHolstein Parts
2022Audie-tron Sportback-L--RearHolstein Parts
2022AudiQ52.0LL4RearHolstein Parts
2022AudiQ5 PHEV2.0LL4RearHolstein Parts
2022AudiQ5 Sportback2.0LL4RearHolstein Parts
2022AudiS62.9LV6RearHolstein Parts
2022AudiS7 Sportback2.9LV6Rear RightHolstein Parts
2022AudiSQ53.0LV6RearHolstein Parts
2022AudiSQ5 Sportback3.0LV6RearHolstein Parts
2021AudiA62.0LL4Rear RightHolstein Parts
2021AudiA6 allroad3.0LV6RearHolstein Parts
2021AudiA6 Quattro3.0LV6RearHolstein Parts
2021AudiA7 Sportback3.0LV6RearHolstein Parts
2021Audie-tron Quattro-L--RearHolstein Parts
2021Audie-tron Sportback-L--RearHolstein Parts
2021AudiQ52.0LL4RearHolstein Parts
2021AudiQ5 PHEV2.0LL4RearHolstein Parts
2021AudiQ5 Sportback2.0LL4RearHolstein Parts
2021AudiS62.9LV6RearHolstein Parts
2021AudiS7 Sportback2.9LV6RearHolstein Parts
2021AudiSQ53.0LV6RearHolstein Parts
2021AudiSQ5 Sportback3.0LV6RearHolstein Parts
2020AudiA6 allroad——RearHolstein Parts
2020AudiA6 Quattro2.0LL4Rear Right300X12mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2020AudiA6 Quattro3.0LV6Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2020AudiA6 Quattro2.0LL4Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2020AudiA6 Quattro3.0LV6Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2020AudiA6 Quattro2.0LL4Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2020AudiA6 Quattro3.0LV6Rear Right300X12mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2020AudiA7 Sportback3.0LV6Rear Right300X12mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2020AudiA7 Sportback3.0LV6Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2020AudiA7 Sportback3.0LV6Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2020Audie-tron Quattro-L--Rear Right"350X28mm 5/112"; Disc Brakes, Rear [1Kq], Disc Brakes, Rear [1Kw], Disc Brakes, Rear [2Ej]; Holstein Parts
2020Audie-tron Sportback-L--RearHolstein Parts
2020AudiQ52.0LL4Rear Right300X12mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [1Kf]; Disc Brakes, Rear [1Kk]; Disc Brakes, Rear [2Ej]; Holstein Parts
2020AudiQ52.0LL4Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2020AudiQ5 PHEV2.0LL4RearHolstein Parts
2020AudiS62.9LV6Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2020AudiS62.9LV6Rear Right300X12mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [1Kf]; Disc Brakes, Rear [1Kk]; Disc Brakes, Rear [2Ej]; Holstein Parts
2020AudiS62.9LV6Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2020AudiS72.9LV6Rear Right300X12mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2020AudiS72.9LV6Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2020AudiS72.9LV6Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2020AudiS7 Sportback2.9LV6Rear Right300X12mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2020AudiS7 Sportback2.9LV6Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2020AudiS7 Sportback2.9LV6Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2020AudiSQ53.0LV6Rear Right300X12mm 5/112; 330X22mm 5/112; Holstein Parts
2019AudiA6 Quattro3.0LV6Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2019AudiA6 Quattro2.0LL4Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2019AudiA6 Quattro3.0LV6Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2019AudiA6 Quattro2.0LL4Rear Right300X12mm 5/112; Disc Brakes, Front [1Zk],Disc Brakes, Front [1Zt],Disc Brakes, Front [1Lw]; Holstein Parts
2019AudiA6 Quattro3.0LV6Rear Right300X12mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2019AudiA6 Quattro2.0LL4Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [1Kf]; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2019AudiA7 Sportback3.0LV6Rear Right300X12mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2019AudiA7 Sportback3.0LV6Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2019AudiA7 Sportback3.0LV6Rear Right350X28mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [2Ef],Disc Brakes, Rear [1Kf]; Holstein Parts
2019Audie-tron Quattro-L--Rear Right350X28mm 5/112; Holstein Parts
2019AudiQ52.0LL4Rear Right300X12mm 5/112; Disc Brakes, Rear [1Kj],Disc Brakes, Rear [1Kf]; Disc Brakes, Rear [1Kk]; Disc Brakes, Rear [2Ej]; Holstein Parts
2019AudiQ52.0LL4Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2019AudiSQ53.0LV6Rear Right300X12mm 5/112; 330X22mm 5/112; Holstein Parts
2018AudiQ52.0LL4Rear Right300X12mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2018AudiQ52.0LL4Rear Right330X22mm 5/112; Disc Brakes, Rear [1Kd]; Holstein Parts
2018AudiSQ53.0LV6Rear Right300X12mm 5/112; 330X22mm 5/112; Disc Brakes, Rear [2Eh],Disc Brakes, Rear [1Kq]; Holstein Parts
2017AudiQ53.0LV6Rear RightFrom Vin FY-H-000 001 >>, Disc brakes in rear [1KJ]; Disc brakes in rear [1KF]; Holstein Parts
2017AudiSQ53.0LV6RearHolstein Parts
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
80A-615-12180A615121