Audi A6 Engine Camshaft Position Sensor Replacement Guide (2020-2024)
Is your A6 running rough or showing a check engine light? The camshaft position sensor could be the problem.
- A bad camshaft sensor will typically cause a Check Engine Light, rough running, hard starting, and poor acceleration.
- For a modern Audi, using a genuine OEM sensor is the safest bet for reliability, though a quality aftermarket brand like Walker Products offers a more affordable option.
- Replacement is a DIY-friendly job for many, often requiring only basic tools and about an hour of time.
- If you have a 3.0T engine, a camshaft sensor code could point to a more serious rocker arm issue, so a professional diagnosis is wise.
Is a Faulty Camshaft Position Sensor a Serious Problem?
When the camshaft position sensor in your 2020-2024 Audi A6 starts to fail, it can cause a range of noticeable problems. The most common sign is the check engine light turning on. You might also experience the engine running poorly, such as shaking at idle, hesitating when you accelerate, or even stalling completely. In some cases, your car may be hard to start or won't start at all. Ignoring these symptoms can lead to poor fuel economy and potentially damage other parts of your car, like the catalytic converter.
Known Issues for 3.0T Engines
For A6 models with the 3.0T V6 engine, be aware that camshaft-related fault codes (like P0341) can sometimes be a symptom of a larger issue with rocker arm bearing failure. While the sensor itself may be what triggers the code, a mechanic should verify the health of the engine's timing system if you have this engine.
Choosing the Right Aftermarket Sensor
When replacing a critical sensor on a modern Audi, you have a choice between a genuine Audi (OEM) part and an aftermarket part. For sensitive electronics, many experienced mechanics recommend using OEM parts to ensure perfect compatibility and long-term reliability. Aftermarket sensors can sometimes fail prematurely, causing you to do the job all over again.
However, quality aftermarket brands like Walker Products engineer their parts to meet or exceed original equipment standards. They are designed as a direct-fit replacement and can be a cost-effective alternative to the more expensive OEM part. 🎬 See this guide on Audi Hall Senders and sensor diagnostics. The choice comes down to balancing cost with the peace of mind that a genuine part provides.
Cost to Replace Audi A6 Camshaft Position Sensor
| Part Type | Estimated Cost |
|---|---|
| New OEM | $90 - $150 |
| New Aftermarket (Walker Products) | $56.37 |
| Shop Labor | $120 - $200 |
Cost estimates are for a single sensor and do not include taxes or diagnostic fees. Your final cost may vary based on your location and vehicle's specific engine.
Frequently Asked Questions
Where is the camshaft position sensor located on my A6?
The camshaft position sensor is usually found on the top of the engine, mounted on the cylinder head or valve cover. On many recent Audi engines, it is located near the oil cap and held in place by a single screw, making it relatively easy to access after removing the plastic engine cover.
Can I replace this sensor myself?
Yes, this is a feasible DIY project for someone with basic tools. The sensor is often held by just one T30 Torx screw. The main challenges are making sure you have the right tool for tight spaces and carefully releasing the VAG-style electrical connector clip without breaking it. 🎬 Watch: How to easily remove those pesky Audi D-style connectors. Always disconnect the battery before starting work.
Are there any recalls for this part on my Audi A6?
As of early 2026, there are no specific NHTSA safety recalls for a failing camshaft position sensor on the 2020-2024 Audi A6. There is a Technical Service Bulletin (TSB) for some 2020-2023 models with the 4.0T engine that notes camshaft sensor faults can be logged incorrectly at low RPMs; the bulletin advises to clear the code first before replacing the part if it only happened once.
What do the fault codes P0340 or P0341 mean?
These are common diagnostic trouble codes (DTCs) that point to a problem with the camshaft position sensor. P0340 indicates a general malfunction in the sensor's circuit, while P0341 means the signal from the sensor is out of the expected range or not performing correctly. While these codes usually mean the sensor is bad, the problem could also be with the wiring or, in rare cases, the engine's timing chain.
🎬 Watch: How to replace a bad camshaft sensor and clear codes.Helpful Videos
Technical Specifications
OEM Part Numbers: 04C907601L 04C907601K 06H905163B 07L905163C
This is a Hall-effect sensor that reads the camshaft's position via a reluctor wheel. It uses a 3-pin connector and is typically held in place by a single T30 Torx bolt. Your A6 may have two or more camshaft position sensors (e.g., for intake and exhaust camshafts on each bank).
We Have This Part in Stock
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 A6: