Guide to the 2011-2017 Audi RS5 ABS Wheel Speed Sensor
Fix your ABS and ESP warning lights by choosing the right replacement ABS wheel speed sensor for your high-performance Audi RS5.
- A faulty ABS sensor will disable your ABS, ESP, and traction control systems, so it should be replaced promptly.
- Use a proper diagnostic scanner to identify which specific sensor has failed before buying a replacement.
- For a performance car like the RS5, prioritize OEM-quality aftermarket brands like Bosch, Hella, or ATE for reliability.
- Verify the exact part number for your vehicle's specific wheel (e.g., front left, rear right) before purchasing.
Is a Warning Light on Your Dash? Understanding ABS Sensor Failure
A faulty ABS wheel speed sensor is a common issue on many vehicles, including the Audi RS5. Because these sensors are located at the wheel hubs, they are exposed to road debris, water, and extreme temperatures, which can cause them to fail over time. When a sensor fails, it can no longer send accurate speed information to the car's computer.
This typically triggers one or more warning lights on your dashboard. The most common signs of a bad ABS sensor are:
- ABS Light: The most direct indicator of a problem with the anti-lock braking system.
- ESP or Traction Control Light: Since the stability and traction control systems rely on the same wheel speed data, a fault here will often disable them as well.
- Brake Pedal Pulsation: In some cases, a faulty sensor can send incorrect signals, tricking the ABS into activating at low speeds, which you might feel as a pulsing in the brake pedal.
- Hesitation or Unstable Braking: With the ABS system disabled, your wheels can lock up during hard braking, increasing stopping distances and reducing steering control.
Can You Drive with a Bad ABS Sensor?
While your car will still brake, the anti-lock function and stability control will be disabled. This means you lose significant safety features, especially in wet or emergency situations. It is strongly recommended to get the sensor replaced as soon as possible to restore full safety system functionality.
Choosing the Right Aftermarket ABS Sensor for Your RS5
When replacing an ABS sensor on a performance vehicle like the RS5, quality is key. While an OEM sensor from an Audi dealer is always an option, several reputable aftermarket brands offer excellent quality, often at a better price. It's important to distinguish between OEM-supplier quality and budget-focused brands.
Tier 1: OEM-Quality Brands
These brands are often the original equipment manufacturers for Audi, meaning their parts meet the same strict quality and performance standards.
- Bosch: A very common OEM supplier for German vehicles. Choosing Bosch is often equivalent to buying the genuine Audi part without the dealer markup.
- Hella: Another top-tier German brand known for electronics and sensors, supplying many European carmakers.
- ATE: A well-respected OEM for braking systems, including ABS components. Their sensors are built to high standards.
- Delphi: A global OEM supplier with a strong reputation for quality electronic components.
Tier 2: Reliable Aftermarket Brands
These brands offer a good balance of quality and value, making them a solid choice for most repairs.
- Bremi: A German company specializing in ignition and sensor technology.
- Standard Ignition (SMP): A long-standing brand offering a wide range of quality replacement parts.
- Vemo: Often considered a good quality aftermarket option, providing reliable parts that fit correctly.
Tier 3: Budget-Friendly Brands
These brands can be a cost-effective solution, but quality can sometimes be inconsistent. For a critical safety component on an RS5, it's generally recommended to invest in a Tier 1 or Tier 2 brand.
- URO Parts: Known for being a budget-friendly option, but their parts can have mixed reviews regarding long-term reliability.
- Facet: An Italian brand that produces a wide array of electronic components at a lower price point.
Pro Tip: Check Part Numbers
The Audi RS5 uses different sensors for the front, rear, left, and right sides. Always verify the OEM part number for the specific wheel you are replacing. Common part numbers include WHT003856A, WHT003857A, WHT003858A, and WHT003859A. Using your vehicle's VIN is the best way to guarantee fitment.
Cost of Replacing an Audi RS5 ABS Wheel Speed Sensor
The cost can vary based on the brand of the part and local labor rates. The replacement itself is not very labor-intensive for a professional mechanic.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket ABS Sensor | $28.86 - $94.32 |
| New OEM Audi ABS Sensor | $91 - $152+ |
| Shop Labor | $49 - $72 |
| Total Estimated Cost (Aftermarket Part + Labor) | $78 - $166 |
Frequently Asked Questions
Do I need a special tool to diagnose the problem?
Yes, to know for sure which wheel sensor is faulty, you need a diagnostic scan tool that can read Audi-specific ABS codes. Generic OBD-II readers often can't access the ABS module. This will prevent you from guessing and replacing the wrong part.
Is this a difficult DIY job?
For someone with basic mechanical skills and tools, replacing the sensor is feasible. It involves removing the wheel, locating the sensor on the wheel hub, undoing a single bolt, and disconnecting the electrical connector. However, the sensor can sometimes get seized in the hub and be difficult to remove without breaking. Applying penetrating fluid can help.
Are there any recalls for the Audi RS5 ABS sensor?
There are no specific recalls for the ABS wheel speed sensor on the 2011-2017 Audi RS5 according to NHTSA data. However, recalls for other electrical components have been issued for some model years, so it's always good to check your VIN for any open campaigns.
Should I replace all four sensors at once?
No, it is not necessary. The sensors fail independently. You only need to replace the one that has failed. A proper diagnostic scan will identify the specific sensor that needs replacement.
Technical Specifications
OEM Part Numbers: WHT003856A WHT003857A WHT003858A WHT003859A 1K0927807A 1K0927808A 7L0927807A 7L0927808A
The sensor is an active 2-pole magnetic pickup sensor that sends wheel rotation data to the ABS control module. Each corner of the vehicle (front-left, front-right, rear-left, rear-right) uses a specific sensor.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Audi RS5:
- 🛍️ Shop This Part
- Is a Warning Light on Your Dash? Understanding ABS Sensor Failure
- Can You Drive with a Bad ABS Sensor?
- Choosing the Right Aftermarket ABS Sensor for Your RS5
- Tier 1: OEM-Quality Brands
- Tier 2: Reliable Aftermarket Brands
- Tier 3: Budget-Friendly Brands
- Pro Tip: Check Part Numbers
- Cost of Replacing an Audi RS5 ABS Wheel Speed Sensor
- Frequently Asked Questions
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