AUDI Transmission Transfer Gear Bearing Spline B8.5

( Type: Automatic Transmission ), ( Ipn: A4 B8.5 ), ( Seller Warranty: Yes ), ( Oe/oem Part Number: 09 10 11 12 13 14 2009 2010 2011 2012 2013 2014, A4 Quattro, A5 Quattro, A6 Quattro, Oem Original Oe Genuine Replacement, 2013 Audi A4 Awd Quattro B8.5, Q5, Transmission Transfer Case Gear Bearing Spline, 531 M8 K19 / 531m8k19 ), ( Country Of Origin: Germany ), ( Performance Part: No )

Review AUDI B8.5 Transmission Transfer Case Gear Bearing Spline Oem fits A4 B8 A5 A6 Q5 2009–2014

The **Audi A4 B8.5 (2009 2014), A5, A6, and Q5** particularly those equipped with the **Quattro all-wheel-drive system** rely on a sophisticated **transmission transfer gear, bearing, spline assembly** that ensures seamless power distribution between the front and rear axles. This critical component, often found in the **central differential or transfer case**, is engineered to handle the high torque demands of Audi s 2.0L and 3.0L turbocharged engines, as well as the 3.0L V6 and 4.2L V8 models, while maintaining precision under dynamic driving conditions. The **transfer gear** itself is a precisely machined steel component designed to mesh with the **ring gear** of the rear axle, transmitting power efficiently with minimal friction, whereas the **bearing** supports the rotating shaft, reducing wear and preventing axial movement. The **spline connection**, a series of evenly spaced ridges on the shaft, ensures a secure yet flexible coupling between the transfer case and the driveshaft, accommodating slight misalignments while maintaining torque transfer integrity. Over time, however, this assembly can degrade due to wear from high-mileage driving, aggressive off-road use, or improper maintenance, leading to symptoms such as **clunking noises during acceleration, vibration in the cabin, or even complete failure of the Quattro system**. Replacing these components requires specialized tools and expertise, as they must be perfectly aligned to avoid premature wear on the new parts. For enthusiasts and mechanics alike, sourcing **OEM-quality or high-grade aftermarket replacements** such as those from **Audi, Valeo, or reputable performance brands** ensures longevity and reliability, especially in vehicles that see frequent use on mixed surfaces or in demanding climates. Whether restoring a classic B8.5 A4 to its original performance or upgrading an A6 Quattro for modern driving demands, attention to this often-overlooked but vital assembly is essential for maintaining the integrity of Audi s legendary all-wheel-drive system.

### Pros and Cons of Buying a Used Audi A4 (B8.5, 2009 2014), A5, A6, or Q5 with a Transmission Transfer Gear, Bearing, Spline Issue

#### **Pros**

1. **Strong Brand and Resale Value**

Audi maintains a strong reputation for luxury, performance, and resale value, even in older models. A well-maintained B8.5 A4, A5, A6, or Q5 can still hold its value better than many competitors.

2. **Reliable Engines (When Properly Maintained)**

The 2.0L TFSI (turbocharged) and 3.0L V6 engines in these models are generally robust if they have been regularly serviced. The 2.0T engines, in particular, are known for lasting well with proper care, though they can be prone to oil consumption if neglected.

3. **Quattro All-Wheel Drive System**

The Quattro system is one of Audi s strongest features, offering excellent traction and handling, especially in adverse weather. This is a major selling point for those who prioritize driving dynamics.

4. **Modern for Their Time**

The B8.5 A4 (2009 2014) introduced many refinements over the previous generation, including improved interior quality, better infotainment (with optional MMI navigation), and a more refined ride. The A5, A6, and Q5 also benefited from these updates, offering a more premium feel.

5. **Available Performance Options**

Models like the S4, RS5, or high-performance variants of the V6 engines provide thrilling driving experiences. If you re looking for a sporty Audi, these can be great finds at lower prices.

6. **Potential for Cost-Effective Upgrades**

With newer models now available, parts and labor for these Audi models can sometimes be cheaper than for more recent generations, making upgrades (e.g., suspension, exhaust, or interior) more affordable.

7. **Good Fuel Economy (For Their Class)**

The 2.0T engines, especially in non-S models, offer decent fuel efficiency (around 20 25 MPG combined), which is reasonable for a luxury sedan or SUV.

---

#### **Cons**

1. **Transmission and Drivetrain Weaknesses**

The most critical issue with these Audi models is the **transmission transfer gear, bearing, or spline failure**, particularly in the **S tronic (dual-clutch) and Tiptronic (automatic) transmissions**. These failures often occur between **100,000 150,000 miles** and can be extremely expensive to repair (often **$3,000 $6,000 ** depending on labor and parts).

- **S tronic (DCT):** Known for premature wear, especially in high-performance models (e.g., S4, RS5). The dual-clutch system is less reliable than traditional automatics.

- **Tiptronic (automatic):** While more durable than S tronic, it can still fail, particularly in models with high mileage or poor maintenance history.

- **Spline and transfer gear issues:** These are often linked to transmission failure and can cause shuddering, slipping, or complete transmission lockup.

2. **Oil Consumption in 2.0T Engines**

Many 2.0L TFSI engines (especially pre-2014) suffer from **excessive oil consumption**, sometimes burning **1 quart per 1,000 miles** or more. This can lead to:

- Low oil levels and potential engine damage if not caught early.

- Frequent oil changes (every **1,000 2,000 miles** in some cases).

- Potential need for **engine rebuilds or replacements** if ignored.

3. **Electrical and Infotainment Issues**

Audi s early MMI (Multimedia Interface) systems can be **glitchy, slow, or unresponsive**, especially in older models. Radio resets, touchscreen failures, and wiring issues are common.

- The **2010 2012 models** often have the most electrical quirks.

- Aftermarket upgrades (e.g., better infotainment systems) can be costly.

4. **High Maintenance Costs**

Audi is not known for being cheap to maintain. Even minor issues (e.g., suspension, brakes, or minor electrical faults) can add up quickly. Parts and labor are often **20 30% more expensive** than for German rivals like BMW or Mercedes in similar trim levels.

5. **Rust and Body Issues**

Some B8.5 A4s, especially those from **harsh climates (salt, snow)**, develop **rust in wheel wells, rocker panels, and undercarriage**. A thorough inspection is essential before purchase.

6. **Depreciation and Reliability Concerns**

While Audi retains value better than some brands, these models are **not known for long-term reliability**. Many owners report **transmission, electrical, or engine issues** as they approach **150,000 miles**.

- The **A5 and Q5** (especially the early models) have had more complaints about **transmission failures** than the A4.

7. **Limited Warranty Coverage**

If buying used, you ll likely have **no warranty**, and Audi s extended warranty programs are expensive. This means any major failure (e.g., transmission) would be a **full out-of-pocket expense**.

---

### **Key Questions to Ask Before Buying**

1. **Transmission History**

- Has the transmission ever been rebuilt or replaced? If yes, **why?** (Common reasons: spline failure, bearing wear, clutch issues.)

- Does the seller have **service records** showing transmission fluid changes (every **60,000 miles**)?

- Smooth shifting (no jerking, hesitation, or slipping).

- No unusual noises (whining, grinding) from the transmission.

- Proper engagement of the **Quattro system** (listen for any whining in the center differential).

2. **Engine Health**

- Check for **oil leaks** (valve cover, oil filter housing gasket).

- Look for **blue smoke from the exhaust** (sign of oil burning).

- Verify **oil consumption history** if the seller says it s "fine," ask for **daily oil top-ups records**.

3. **Electrical System**

- Test all **windows, locks, infotainment, and lights**.

- Check for **water damage** in the infotainment screen (common in older Audis).

4. **Suspension and Steering**

- Listen for **clunks or rattles** over bumps (worn bushings, struts).

- Check for **excessive play in the steering wheel** (worn tie rods, ball joints).

5. **Underbody Condition**

- Look for **rust** in wheel wells, subframe, and rear axle.

- Check for **fluid leaks** (transmission, differential, power steering).

---

### **Ending Conclusion**

Buying a **used Audi A4 (B8.5), A5, A6, or Q5 (2009 2014) with transmission, bearing, or spline concerns** is a **high-risk, high-reward** decision. **The biggest red flags are transmission issues and oil consumption**, which can turn a seemingly good deal into a **financial nightmare** if not properly addressed.

- You **find a well-documented example** with **full service records**, **low mileage (

- You re **prepared to budget $3,000 $6,000 for a transmission rebuild** if needed.

- You **plan to drive it for only a few years** (e.g., as a short-term luxury car) and then sell it.

- You **have mechanical skills** or access to a trusted Audi specialist for maintenance.

- The seller **won t provide service records** or **transmission history**.

- The car has **high mileage (>120,000 miles)** without proof of proper maintenance.

- You **can t afford unexpected repairs** (transmission, oil consumption, electrical).

- You **prioritize reliability over luxury** in which case, a **BMW 3 Series, Lexus ES, or Toyota Avalon** may be safer choices.

---

### **Final Recommendation**

You ve **verified the transmission is in perfect condition** (no spline/bearing issues).

The **engine has no oil consumption problems** (or you re prepared to manage it).

You **have a budget for potential major repairs** (transmission, electrical, suspension).

You **plan to keep it for a short time** (3 5 years) before trading it in.

- **Audi A4 B8 (2004 2008):** Older but **less prone to transmission issues** (though still check for oil consumption).

- **BMW 3 Series (E90/E91):** More

Details:

Larger and heavier items are shipped only to the lower 48 / Continental States. Wash hands after Handling. Came off of 2013 Audi A4 AWD Quarto B8.5 Black. Make sure the provided part numbers and photos match with your old.

Make sure the part number matches your vehicle. It takes only 5 minutes and totally free. The part is used and may show some signs of previous use. Any known defects are pointed in the photos and items.

See all photos for the condition. Please see all photos prior making the purchase to ensure that condition of item meets your standards. Left Driver Side / Right Passenger. See photos for details to ensure proper fitment your vehicle.

The parts are used and expected to have some signs of wear due previous use. Shipping only within the US States and Territories.

specifications autotransmissionsgo:

• for models: A4, B8, A5, A6, Q5
• for makes: Audi
• for years: 2009-2014
• type: Automatic Transmission
• ipn: A4 B8.5
• seller warranty: Yes
• oe/oem part number: 09 10 11 12 13 14 2009 2010 2011 2012 2013 2014, A4 Quattro, A5 Quattro, A6 Quattro, Oem Original Oe Genuine Replacement, 2013 Audi A4 Awd Quattro B8.5, Q5, Transmission Transfer Case Gear Bearing Spline, 531 M8 K19 / 531m8k19
• country of origin: Germany
• performance part: No

general autotransmissionsgo:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission

offer autotransmissionsgo:

• best offers: True
• options: Ship-to-home
• started: June 10, 2026
• sold: 0
• quantity: 1
• availability: In Stock

seller autotransmissionsgo:

• rating: 100.0%
• city: Clearwater, Florida
• # reviews: 8489

shipping autotransmissionsgo:

• transit: 2-6 Days
• class: Standard
• cost: $6.75
• carrier: USPS
• service: USPS Ground Advantage
• type: Fixed

payments autotransmissionsgo:

• credit card: Diners-club
• other
• wallet: Google-pay

returns autotransmissionsgo:

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

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