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Facet 21.2124 ABS Wheel Speed Sensor - Front Left or Front Right
| Brand | Facet 21.2124 |
|---|---|
| Position | Front Left and Front Right |
| Length Of Cable | 1030 mm |
| Length Of Sensor | 28 mm |
| Resistance Between Terminals | 1650 ohm |
| Fits | Audi · 28 vehicles |
ABS wheel speed sensor. Monitors wheel speed for reliable anti-lock braking system performance.
Cable length 1030 mm. Provides ample reach for a clean, straightforward installation.
Sensor length 28 mm. Compact design fits neatly into the brake system.
Cross-references Audi 4B0927803E and Volkswagen 4B0927803E for the same application. See all 2.
Facet ABS Wheel Speed Sensor 21.2124
Facet 21.2124 is an ABS wheel speed sensor for front axle applications on select Audi A6, A6 Quattro, S6, and RS6 models. It is built with a 1030 mm cable, a 28 mm sensor length, and 1650 Ohm resistance between terminals for the specified OE-style application.
Key Features
- ABS wheel speed sensor for front left and front right positions where listed
- 1030 mm cable length for routed front-axle installation
- 28 mm sensor length
- 1650 Ohm resistance between terminals
- Direct replacement reference for Audi and Volkswagen OE part number 4B0927803E
Detailed Description
This Facet ABS wheel speed sensor, part number 21.2124, is listed for 2002-2004 Audi A6, A6 Quattro, S6, and RS6 front axle applications, with fitment shown for both left and right sides on specific model years. It is also cross-referenced to Audi and Volkswagen OE number 4B0927803E for the same application. Use this sensor when servicing an Audi A6 ABS wheel speed sensor, an Audi A6 Quattro front wheel speed sensor, or a front ABS sensor on an Audi RS6 or S6 with the listed fitment.
What It Helps Fix
- ABS warning light caused by a failed front wheel speed sensor
- Intermittent wheel speed signal loss at the front axle
- ABS system fault codes related to sensor resistance or signal output
- Traction control or stability control issues tied to wheel speed input
- Brake system warning behavior linked to a damaged sensor harness or connector path
Installation Notes and Tips
Verify the vehicle year, model, and sensor position against the fitment list before ordering. Fits 2003-2004 Audi A6, front right. Fits 2003-2004 Audi A6, front left. Fits 2003-2004 Audi A6 Quattro, front left. Fits 2003-2004 Audi A6 Quattro, front right. Fits 2004 Audi RS6, front axle left and right. Fits 2003 Audi RS6, front left. Fits 2003 Audi RS6, front right. Fits 2003 Audi S6, front right. Fits 2003 Audi S6, front left. Fits 2002 Audi A6, from VIN # 4B-3-000001. Fits 2002 Audi A6 Quattro, from VIN # 4B-3-000001. Fits 2002 Audi S6, from VIN # 4B-3-000001. Inspect the wheel-end harness routing and connector condition during replacement to confirm proper sensor placement and signal continuity.
Quality Assurance
Facet manufactures automotive electrical and sensor components for OE-style service replacement. This part number 21.2124 is specified with defined cable length, sensor length, and terminal resistance to support accurate fitment matching for the listed Audi applications.
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2004 | Audi | A6 | Base | — | — | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 | Base | — | — | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 Quattro | Base | 3.0L | V6 | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 Quattro | Base | 4.2L | V8 | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 Quattro | Base | 3.0L | V6 | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 Quattro | Base | 2.7L | V6 | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 Quattro | Avant | — | — | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 Quattro | Avant | — | — | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 Quattro | Base | 4.2L | V8 | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | A6 Quattro | Base | 2.7L | V6 | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2004 | Audi | RS6 | — | 4.2L | V8 | GAS | N/A | Fitting Position:Front Axle left and right |
| 2003 | Audi | A6 | Base | — | — | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 | Base | — | — | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 Quattro | Base | 3.0L | V6 | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 Quattro | Base | 2.7L | V6 | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 Quattro | Base | 4.2L | V8 | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 Quattro | Base | 2.7L | V6 | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 Quattro | Base | 3.0L | V6 | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 Quattro | Avant | — | — | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 Quattro | Base | 4.2L | V8 | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | A6 Quattro | Avant | — | — | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | RS6 | Base | — | — | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | RS6 | Base | — | — | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | S6 | Avant | — | — | — | Front Right | ABS Wheel Speed Sensor includes wire harness. |
| 2003 | Audi | S6 | Avant | — | — | — | Front Left | ABS Wheel Speed Sensor includes wire harness. |
| 2002 | Audi | A6 | — | 3.0L | V6 | GAS | N/A | From VIN # 4B-3-000001 |
| 2002 | Audi | A6 Quattro | — | 4.2L | V8 | GAS | N/A | From VIN # 4B-3-000001 |
| 2002 | Audi | S6 | — | 4.2L | V8 | GAS | N/A | From VIN # 4B-3-000001 |
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