Audi S6 (2006-2012) V10 Engine Camshaft Position Sensor Guide
Understanding camshaft position sensor failure and replacement for your C6 Audi S6 5.2L V10.
- The S6 V10 has four camshaft position sensors; it's wise to replace them all at once if one fails.
- Fault codes for a camshaft sensor can also be caused by a faulty camshaft adjuster solenoid, a known issue on these engines.
- Choose premium aftermarket brands like Hella, Delphi, or NGK for reliability similar to OEM parts.
- Replacement is a simple DIY task for most owners, requiring basic tools and about 30 minutes of time.
Symptoms of a Failing Camshaft Position Sensor
A failing camshaft position sensor in your Audi S6 can cause a range of problems, from annoying to severe. The most common indicator is a Check Engine Light. You may also notice the engine is hard to start or takes longer to crank over than usual. A rough idle, engine stalling, misfires, and a noticeable loss of power or hesitation during acceleration are also classic signs. In some cases, you might experience a decrease in fuel economy as the engine's computer struggles with incorrect data.
Important Diagnostic Note
Forum discussions with Audi owners reveal that camshaft position sensor fault codes (like P0341 or P0346) don't always mean the sensor itself is bad. These codes can also be triggered by failing camshaft adjuster solenoids, which are a known issue. Before replacing the sensors, it's a good diagnostic step to test or swap the solenoids between engine banks to see if the fault code follows the solenoid.
Choosing the Right Aftermarket Sensor
When replacing a sensor on a high-performance German engine like the S6 V10, quality is important. While an OEM sensor from an Audi dealer is an option, quality aftermarket brands can offer similar performance for a fraction of the price. Not all aftermarket brands are created equal, however. Based on owner feedback and brand reputation, they can be grouped into tiers.
Tier 1: OEM Supplier & Premium Brands
These brands are often original equipment manufacturers for Audi and other German automakers or have a strong reputation for quality electronics. They are the most recommended choice for reliability.
- Hella: Often an OEM supplier for German cars, known for excellent quality control.
- Delphi: A major OEM supplier with a reputation for producing parts that match factory performance, especially for European vehicles.
- NGK/NTK: Well-known for ignition components and sensors, offering high-quality, reliable products with warranties.
- Vemo: A brand that sometimes re-packages OEM parts, with their "Q+" line being highly regarded.
Tier 2: Reputable Aftermarket Brands
These brands are well-established in the aftermarket and offer a good balance of price and quality. They are a solid choice for most owners.
- Standard Ignition (SMP): A long-standing brand with a wide range of reliable sensor products.
- Walker Products: Known for providing good value and direct-fit parts that perform consistently.
- Hitachi: A major electronics manufacturer that produces quality automotive components.
- Holstein: Focuses on sensors and offers parts that meet or exceed OEM specifications.
Tier 3: Value-Oriented Brands
These brands compete primarily on price. While they can be a budget-friendly solution, forum discussions often contain mixed reviews regarding their long-term reliability on sensitive European engines. They may be suitable for a temporary fix or if the budget is the primary concern.
- Bremi
- Dorman
- Facet
- Global Parts
- Prenco
- True Tech
Pro Tip: Replace in Sets
Your S6 V10 has four camshaft position sensors—one for each camshaft (intake and exhaust on both banks). If one sensor fails due to age and heat cycles, the others are likely not far behind. To save on future labor and ensure consistent engine performance, it is often recommended to replace all four sensors at the same time, especially if the vehicle has high mileage.
Cost of Replacement
The cost to replace a camshaft position sensor can vary. The part itself is relatively inexpensive, but labor costs can add up if you have a shop perform the work. The table below gives a general idea of what to expect.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Sensor (Each) | $22.69 - $57.18 |
| New OEM Sensor (Each) | $85 - $125 |
| Shop Labor | $100 - $200 |
| Total (DIY) | $91 - $229 (for four sensors) |
| Total (Shop) | $416 - $593 (for one sensor) |
Frequently Asked Questions
How many camshaft position sensors does the 2006-2012 Audi S6 have?
The 5.2L V10 engine in the C6 Audi S6 has four camshaft position sensors. There is one for the intake camshaft and one for the exhaust camshaft on each of the two cylinder banks (Bank 1 and Bank 2).
Where are the sensors located?
The sensors are located on the cylinder heads, at the front of the engine. On the S6 V10, they are typically found on the front of the valve covers. Accessing them usually requires removing the engine's plastic covers.
Can I replace a camshaft position sensor myself?
Yes, this is a DIY-friendly job for someone with basic mechanical skills. The sensors are usually held in by a single bolt and are accessible after removing the engine covers. The process involves disconnecting the battery, unplugging the electrical connector, removing the bolt, swapping the sensor, and then reassembling everything. Always be sure to apply a little clean engine oil to the new sensor's O-ring before installation.
Do I need to clear the Check Engine Light after replacement?
Yes. After replacing the faulty sensor, the fault code must be cleared from the engine computer using an OBD-II scan tool. If you don't clear the code, the light may eventually turn off on its own after a number of successful drive cycles, but it's best to clear it immediately to confirm the fix was successful.
Are there any recalls for the camshaft position sensor on this car?
A search of the National Highway Traffic Safety Administration (NHTSA) database shows no open recalls for the engine camshaft position sensor on the 2006-2012 Audi S6.
Technical Specifications
OEM Part Numbers: 07L905163C 07L905163A 07L905163B
The Audi S6 (C6) 5.2L V10 engine uses four Hall effect camshaft position sensors. Two are located on Bank 1 (passenger side) and two on Bank 2 (driver side), monitoring the intake and exhaust camshafts on each bank.
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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 S6:
- 🛍️ Shop This Part
- Symptoms of a Failing Camshaft Position Sensor
- Important Diagnostic Note
- Choosing the Right Aftermarket Sensor
- Tier 1: OEM Supplier & Premium Brands
- Tier 2: Reputable Aftermarket Brands
- Tier 3: Value-Oriented Brands
- Pro Tip: Replace in Sets
- Cost of Replacement
- Frequently Asked Questions
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