AUDI 3691640 Automatic Transmission Torque Converter

( Manufacturer Part Number: 3691640 ), ( Model: AUDI-Q7 ), ( Part Type: Torque Transmission Converter ), ( Manufacturer Warranty: 90 Day ), ( Genuine Oem: No ), ( Seller Notes: 3.0l, Awd Diesel ), ( Interchange Item Code: 407 ), ( Color: White ), ( Partout Id: A-129435400 )

Review AUDI Used Automatic Transmission Torque Converter Grade fits Q7 2015

The **Audi 3691640 Automatic Transmission Torque Converter** is a precision-engineered component designed exclusively for the **2015 Audi Q7** models equipped with the **09G (09G1) or 09J (09J1) Tiptronic 8-speed automatic transmission**. This high-performance torque converter is a critical element of the transmission system, responsible for transferring power from the engine to the transmission while managing torque multiplication, fluid circulation, and smooth shifting all of which are essential for the Q7 s refined driving dynamics and reliability. Crafted from high-grade materials, including a robust **stamped aluminum housing** and a **precision-machined turbine and impeller assembly**, this torque converter is built to withstand the demanding conditions of modern internal combustion engines, particularly those paired with Audi s advanced **09G/09J transmission**, which is known for its efficiency, responsiveness, and durability.

At its core, the **3691640 torque converter** features a **multi-plate clutch assembly** with optimized friction materials, ensuring seamless engagement and disengagement during acceleration, deceleration, and shifting sequences. The **stator and pump assembly** are dynamically balanced to minimize vibration and noise, contributing to the Q7 s signature quiet cabin environment and smooth power delivery. Additionally, the converter incorporates a **lock-up clutch mechanism**, which engages at higher speeds to improve fuel efficiency by reducing fluid slippage and transmission drag a feature particularly beneficial for the Q7 s hybrid-ready powertrains, such as the **3.0L V6 TDI or 3.0L V6 TFSI** engines. The torque converter is also designed to work in harmony with the **09G/09J transmission s sophisticated valve body and solenoids**, allowing for precise hydraulic control of shift points and torque converter lock-up timing.

For installation, the **3691640 torque converter** is a direct-fit replacement, compatible with the **2015 Audi Q7 (facelift model)** and other vehicles sharing the same transmission platform, including certain **Audi A6, A7, and Q5** models. It is engineered to meet or exceed **OEM specifications**, ensuring compatibility with the Q7 s **DSG Tiptronic 8-speed automatic transmission** and its associated **ATF (Automatic Transmission Fluid)** requirements, typically **G 052 199 A40** or **G 052 512 A2** for the 09G/09J systems. The converter s robust construction and high-quality seals help prevent fluid leaks, while its optimized torque capacity supports the Q7 s towing capabilities and spirited driving styles without compromising longevity.

Whether used in a **restoration project, performance upgrade, or routine maintenance**, the **Audi 3691640 torque converter** represents a critical upgrade for maintaining the Q7 s performance, reliability, and driving enjoyment. Its integration with the **09G/09J transmission** ensures that power is transferred efficiently, shifts are executed with precision, and the vehicle operates with the same level of sophistication for which Audi is renowned. For owners seeking to preserve or enhance their Q7 s performance, this torque converter is an indispensable component that bridges the gap between engine output and transmission function, delivering both power and refinement in equal measure.

### **Pros and Cons of Buying a 2015 Audi Q7 (3691640 Automatic Transmission with Torque Converter)**

#### **Pros**

1. **Reliability of the Q7 Platform** The 2015 Q7 is based on the C7 platform, which is generally well-built with solid structural integrity. Audi s engineering ensures a comfortable and stable ride, even for larger vehicles.

2. **Strong Engine Options** The Q7 typically comes with a 3.0L V6 (TFSI) or 3.0L V6 TDI diesel, both of which are known for good performance and fuel efficiency in their classes. The V6 TDI, in particular, offers strong torque and lower emissions compliance.

3. **Automatic Transmission (09G/09J) Compatibility** The 09G (6-speed) and 09J (7-speed) transmissions used in the Q7 are robust and designed for heavy-duty use. The torque converter in the automatic system is durable, especially if the vehicle has been well-maintained.

4. **Luxury and Comfort** Audi s interior quality remains high, with premium materials, advanced infotainment (if equipped with MMI Navigation Plus), and a spacious cabin suitable for families or long trips.

5. **Resale Value** Audi Q7s hold their value reasonably well compared to some competitors, especially if well-maintained. The 2015 model is not at the end of its lifecycle, so parts and service availability remain decent.

6. **Safety Features** The Q7 includes standard safety tech such as stability control, multiple airbags, and advanced driver-assistance systems (depending on trim). The larger size also provides better crash protection.

7. **Tow and Load Capacity** With the right engine and transmission, the Q7 can tow significant loads (up to 5,000 lbs with the proper package), making it useful for hauling trailers or equipment.

8. **AWD Capability** Most Q7s come with Audi s Quattro all-wheel-drive system, improving traction in adverse conditions.

9. **Aftermarket Support** Audi has a strong aftermarket presence, meaning parts, modifications, and tuning options are widely available.

10. **Potential for Lower Mileage** If the vehicle has been kept in good condition, it may have lower mileage than comparable luxury SUVs, offering better longevity.

---

#### **Cons**

1. **Transmission and Torque Converter Issues** While generally reliable, the 09G/09J transmissions in some Audi models (especially with the 3.0L V6) have had reports of rough shifting, delayed engagement, or torque converter failures over time. The torque converter in particular can wear out, leading to slipping or overheating. A pre-purchase inspection is critical to verify its condition.

2. **Electrical Gremlins** Audi vehicles, including the Q7, are notorious for electrical system quirks. Issues like faulty sensors, intermittent power windows, or infotainment glitches can arise, often requiring costly diagnostics.

3. **Maintenance Costs** Audi parts and labor are expensive compared to mainstream brands. Regular maintenance (timing belt, spark plugs, oil changes) and potential transmission or electrical repairs can add up quickly.

4. **Fuel Economy Trade-offs** While the TDI offers better MPG, the V6 gas engine consumes more fuel, especially in stop-and-go traffic. The Q7 s size also contributes to higher fuel consumption than smaller SUVs.

5. **Rust Concerns** Some early C7 Q7 models (especially in snowy or coastal regions) have reported rust issues on wheel wells, undercarriage, or rocker panels. A thorough inspection of these areas is essential.

6. **Interior Wear Over Time** High-quality materials degrade with age, and the cabin may show signs of wear (cracked plastic, faded upholstery) if not well-maintained.

7. **Depreciation** Luxury vehicles depreciate faster than mainstream brands. A 2015 Q7 may not retain as much value as a newer model, especially if it lacks premium features.

8. **Complexity of Repairs** Audi s advanced systems (e.g., adaptive suspension, advanced driver aids) require specialized knowledge to repair, increasing repair costs.

- **Water leaks** (sunroof, windshield, or door seals leading to electrical or interior damage).

- **Exhaust manifold cracks** (common in the 3.0L V6, leading to misfires or catalytic converter damage).

- **Clutch or torque converter wear** in the automatic transmission, causing slipping or jerking.

10. **Resale Market Competition** The used luxury SUV market is crowded, with strong competition from BMW X5, Mercedes-Benz M-Class, and Lexus RX. The Q7 may not always fetch the highest resale value.

---

### **Ending Conclusion**

The 2015 Audi Q7 with the 3691640 automatic transmission and torque converter can be a **solid purchase** if you prioritize luxury, space, and reliability in a larger SUV. However, it comes with **notable risks**, particularly around transmission/torque converter longevity, electrical issues, and high maintenance costs. The key to making this a good buy lies in **thorough due diligence**:

- **Verify transmission and torque converter health** (check for slipping, rough shifts, or fluid leaks).

- **Inspect for rust, water damage, and exhaust issues** (especially in the V6 engine).

- **Review maintenance records** to ensure the vehicle has been properly serviced.

- **Test drive for electrical quirks** (windows, infotainment, sensors).

- **Compare pricing** to similar luxury SUVs to ensure you re getting a fair deal.

If you re prepared for potential repairs and can find a well-documented example with a clean history, the Q7 offers a **comfortable, capable, and capable luxury SUV** that can last well into the 200,000 mile range with proper care. However, if you re concerned about transmission reliability or want a lower-maintenance option, consider alternatives like a **Lexus RX, BMW X5, or a well-maintained used Tesla Model X** (if electric is an option).

---

### **Recommendation**

You ve had a **pre-purchase inspection** by a trusted mechanic specializing in Audi transmissions.

The **torque converter and transmission fluid** have been recently serviced or replaced.

The vehicle has **no history of rough shifting, slipping, or electrical failures**.

You re prepared for **higher-than-average maintenance costs** and have a budget for potential repairs.

The transmission shows **signs of wear** (delayed engagement, slipping, or burnt fluid).

The **torque converter is failing** (indicated by overheating, whining, or poor acceleration).

The **vehicle lacks maintenance records** or has a history of neglect.

You re not comfortable with **potential electrical or complex mechanical issues**.

For most buyers, the Q7 is a **good mid-range luxury SUV**, but it requires **smart shopping and proactive maintenance** to avoid costly surprises. If transmission reliability is a major concern, consider a **Lexus RX or a newer Audi Q5** as alternatives.

Details:

Orders placed after 2:00 pm CST cannot be guaranteed shipping that day. Unless specified as Universal this is a direct fit Automatic Transmission Torque Converter. Superseded Part Numbers This item may have been superseded from a different part number this manufacturer.

part #: 3691640 price

• $211.62

specifications torquconv:

• for makes: Audi
• for years: 2015
• mpn: 3691640
• model: Audi-q7
• part type: Torque Transmission Converter
• manufacturer warranty: 90 Day
• genuine oem: No
• seller notes: 3.0l, Awd Diesel
• interchange item code: 407
• color: White
• partout id: A-129435400

seller torquconv:

• city: Mobile, Alabama
• rating: 99.4%
• # reviews: 6816

offer torquconv:

• sold: 0
• started: May 23, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home

returns torquconv:

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

shipping torquconv:

• carrier: FedEx, USPS
• transit: 5-10 Days
• type: Fixed
• service: FedEx Ground / FedEx Home Delivery, USPS Priority Mail, USPS Ground Advantage
• class: Standard, Expedited
• cost: $0.00

general torquconv:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Torque Converters

payments torquconv:

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

Audi 3691640 Is Similar To:

• 099323571ex Volkswagen Genuine Audi Converter (22.8% similar) ...(September 30th, 2018)
• 09e323571a Audi Quattro Transmission Torque Converter Oem (59.3% similar) 2l 6-AT 2004 , 2005 , 2006 audi s8 2003 , 2005 expedited shipping is often available in rush situations, please for rates before purchasing. Guaranteed 100 functional. Please compare part number to insure proper fitment...(February 15th, 2019)
• 09e323571d Rebuilt Torque Converter Audi (42.4% similar) Please do keep in mind that these units are rebuilt to last longer the lifetime of vehicle and hundreds checked sold daily, so most likely if an issue occurs it would be same initially caused first torque converter fail. 2l ZF6HP26ATHE oem part number for the torque converter is 09E323571D. 2l ...(March 6th, 2018)
• 09g-323-571-a Vw Audi Transmission Torque Converter Passat (52.9% similar) 0t boy, CDC, calf, clog, Cruz Etta engine model's - boy code high pressure mechanical PUMP2005 2008 AUDIA42. 0t fs engine code boy with only 65,000 miles. Transmission torque converter VW pasta b6 engine model's - high pressure mechanical PUMP2009VOLKSWAGENEOSBPY code PUMP 2006 2007 ...(June 19th, 2018)
• 09l 323 571 Audi Cabriolet Cabrio Quattro Transmission Torque Converter Oem (52.3% similar) ...(December 4th, 2018)
• 09l323571r Rebuilt Torque Converter Audi Phaeton (34.9% similar) Lock-up pistons are machined and balanced in-house to ensure true piston. 2l engines on their respective HP26 transmissions for audi A6. Old hubs are replaced with new hardened heat treated. High pressure leak tests are performed in a special welding solution and the converter gets submerged to ...(March 6th, 2018)
• 09m323571f Audi Auto Trans Torque Converter (52.9% similar) Through Fri...(February 10th, 2017)
• 0bk323571g Audi Auto Trans Torque (39.6% similar) Through Fri...(April 17th, 2017)
• 0bk323571n Audi Auto Trans Torque (39.6% similar) Through Fri...(May 27th, 2017)
• 0bk323572n Audi Auto Trans Torque (39.6% similar) Through Fri. This part fits vehicles made in the following years superseded numbers item may have been from a different number manufacture...(April 29th, 2017)
• 0bk323572s Audi Auto Trans Torque (39.6% similar) Superseded part numbers this item may have been from a different number manufacture. Through Fri...(April 29th, 2017)