HELLA MF87Y6 Exhaust Temperature Sensor 2.8L V6 3.2L 3.0L

( Brand: Hella ), ( Manufacturer Part Number: MF87Y6 ), ( Part Type: Exhaust Sensor ), ( Product Warranty: 12 Month Warranty ), ( Part Info: Hella Oe Certified 12v Cable ), ( Years: 2009 2010 2011 09 10 11 ), ( Models: A6 A6 Quattro S6 ), ( Mfr Label: Hella Oe Certified ), ( Important: Please Read All Notes Before Making This Purchase ), ( Cs-sku: 400 )

Review HELLA Exhaust Temperature Sensor Audi 2.8l V6 3.2l 3.0l fits QUATTRO A6 S6 2009–2011

The **HELLA MF87Y6 Exhaust Temperature Sensor** is a high-performance, precision-engineered component designed specifically for Audi s **A6 Quattro (S6) and S6 models** produced between **2009 and 2011**, covering a range of **2.8L, 3.0L, and 3.2L V6 engines** built on the **FSI (Fuel Stratified Injection) platform**. This sensor is a critical part of the vehicle s emissions and engine management systems, ensuring optimal exhaust gas recirculation (EGR), catalytic converter efficiency, and overall drivetrain performance. Crafted with **HELLA s signature quality and reliability**, this sensor is built to withstand the extreme thermal and mechanical stresses of high-performance driving while maintaining accurate temperature readings critical for both daily commuting and spirited track use.

The **MF87Y6** is a **thermocouple-type exhaust gas temperature (EGT) sensor**, featuring a **stainless steel sheath and a robust thermocouple junction** that provides real-time feedback to the engine control unit (ECU). This feedback is essential for **adjusting fuel delivery, ignition timing, and EGR flow** to minimize emissions, prevent engine damage from excessive heat, and optimize power output. Unlike standard OEM sensors, which may degrade prematurely under aggressive driving conditions, the **HELLA MF87Y6** is engineered with **enhanced durability**, ensuring long-term reliability even in demanding applications. Its **precise calibration** aligns with Audi s factory specifications, guaranteeing seamless integration with the vehicle s diagnostic and performance systems.

For Audi enthusiasts seeking **both performance and compliance**, this sensor is an ideal upgrade. Whether you re pushing the limits on the track or simply maintaining peak efficiency on the road, the **HELLA MF87Y6** delivers **consistent, accurate temperature monitoring**, helping to prevent **premature catalytic converter failure, EGR system clogging, and potential engine overheating**. Its **direct-fit design** ensures a hassle-free installation, matching the exact dimensions and thread specifications of the original equipment, while its **high-temperature resistance** (capable of withstanding prolonged exposure to exhaust gases exceeding **1,000 C**) makes it a superior choice over aftermarket alternatives that may compromise on quality. Whether you re restoring an older A6 Quattro or upgrading a high-mileage S6, the **HELLA MF87Y6 Exhaust Temperature Sensor** is a **must-have component** for maintaining engine health, emissions compliance, and long-term reliability.

### **Pros and Cons of buying a Hella MF87Y6 Exhaust Temperature Sensor for 2009 2011 Audi A6 Quattro/S6 (2.8L V6, 3.2L, 3.0L TDI)**

1. **Direct Fitment** The Hella MF87Y6 is a known OEM replacement part for the exhaust temperature sensor (ETS) in your Audi A6/S6 models, ensuring compatibility without modification.

2. **Reliability** Hella is a reputable automotive supplier, and this sensor is commonly used in aftermarket and OEM applications, reducing the risk of failure compared to generic or low-quality alternatives.

3. **Easy Installation** The sensor is designed to replace the stock unit with minimal tools, typically requiring only a socket wrench and possibly a scan tool to reset the system after installation.

4. **Compatibility with Modern Systems** Since Audi uses this sensor in multiple models, it integrates well with the vehicle s ECU, reducing the chance of error codes or calibration issues.

5. **Cost-Effective** Compared to OEM sensors, this aftermarket part offers a significant price reduction while maintaining quality.

6. **Widely Available** Easy to find on platforms like Amazon, RockAuto, or specialty auto parts stores, reducing lead times.

1. **Potential Quality Variations** While Hella is a trusted brand, some aftermarket units may have slight manufacturing inconsistencies compared to genuine OEM parts, though this is rare with this specific sensor.

2. **No Warranty (or Limited Warranty)** Unlike OEM parts, aftermarket sensors may come with no warranty or a very short one (e.g., 30 90 days), leaving you responsible for failures beyond that period.

3. **Possible Code Retention** If the original sensor failed due to a deeper issue (e.g., wiring damage, ECU corruption), replacing it alone may not fully resolve the problem, requiring a scan tool to clear codes.

4. **Installation Challenges** In some cases, the sensor s location (often near the exhaust manifold) can make access difficult, especially if the vehicle has been previously modified or has rusted mounting points.

5. **Mixed Reviews on Durability** Some owners report that while this sensor works initially, it may fail prematurely (e.g., within 1 2 years) if the vehicle has high mileage or aggressive driving habits. OEM sensors tend to last longer under these conditions.

The **Hella MF87Y6 is a solid choice** for replacing a faulty exhaust temperature sensor in your 2009 2011 Audi A6 Quattro/S6, offering a balance of affordability, reliability, and ease of installation. It is the most widely recommended aftermarket alternative to OEM parts for this application. However, if you prioritize longevity and warranty coverage, an **OEM replacement sensor** (e.g., from Audi or a trusted dealer) may be preferable, though at a higher cost.

- Use a **scan tool** to clear any error codes after installation.

- Ensure the **wiring and connections** are intact (not corroded or damaged).

- Consider **preventative maintenance** (e.g., checking for exhaust leaks or catalytic converter issues that could stress the sensor).

If the sensor fails prematurely, it may indicate an underlying problem (e.g., exhaust system leaks, ECU issues) that should be addressed.

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- You need a **direct replacement** at a lower cost than OEM.

- You re comfortable with basic installation and troubleshooting.

- You ve ruled out other potential issues (e.g., wiring, ECU errors).

- You want **maximum reliability and warranty coverage**.

- Your vehicle has **high mileage or a history of sensor failures**.

- You re willing to pay the premium for peace of mind.

For most users, the **Hella part is the best aftermarket option**, but always verify the sensor s condition (e.g., no cracks, clean threads) before installation.

Details:

Audi A6 Quattro 2009 - 2011 4.2L V8. Audi A6 Quattro 2009 - 2011 3.0L V6. Audi S6 2009 - 2011 5.2L V10. Audi A6 Quattro 2009 3.2L V6.

part #: mf87y6 prices

• $113.63-$118.76

specifications emissyste:

• for models: A6, S6, Quattro
• for makes: Audi
• for years: 2009-2011
• brand: Hella
• mpn: Mf87y6
• part type: Exhaust Sensor
• product warranty: 12 Month Warranty
• part info: Hella Oe Certified 12v Cable
• years: 2009 2010 2011 09 10 11
• models: A6 A6 Quattro S6
• mfr label: Hella Oe Certified
• important: Please Read All Notes Before Making This Purchase
• cs-sku: 400

seller emissyste:

• # reviews: 68776
• rating: 98.8%
• city: Tempe, Arizona

offer emissyste:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: June 6, 2026
• quantity: 1

shipping emissyste:

• type: Fixed
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• cost: $0.00
• carrier: FedEx
• transit: 3-6 Days

general emissyste:

• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
• condition: New

payments emissyste:

• wallet: Google-pay
• other
• credit card: Visa

returns emissyste:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

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