BMW Rear Drive Shaft Driveshaft Transmission 26108485741 M850 1461

( Manufacturer Part Number: 8485741 ), ( Type: Driveshaft ), ( Ipn: 26108485741 ), ( Placement On Vehicle: Rear ), ( Transmission Type: Automatic ), ( Country Of Origin: Germany ), ( California Prop 65 Warning: Motor Vehicles California Requires The Following Notice, Oils And Fluids, Battery Posts, Terminals And Related Accessories Which Contain Lead And Lead Compounds And Other Chemicals Known To The State Of California To Cause Cancer, Birth Defects And Other Reproductive Harm. These Chemicals Are Found In Vehicles, Vehicle Parts And Accessories, Both New And As Replacements. When Being Serviced, These Vehicles Generate Used Oil, Waste Fluids, Grease, Fumes And Particulates, All Known To The State Of California To Cause Cancer, Birth Defects, And Reproductive Harm. )

Review BMW Oem Rear Drive Shaft Driveshaft At Transmission fits G16 AWD 1925–2020

The **BMW 8485741 20-25 G16 M850 AWD Rear Drive Shaft (Driveshaft/Transmission Shaft, Part Number 1461)** is a high-performance, precision-engineered component designed exclusively for BMW s flagship **M8 Competition and M8 Gran Coupe (G16) models**, ensuring seamless power delivery and optimal handling in both rear-wheel-drive and all-wheel-drive configurations. This driveshaft is a critical link in the vehicle s drivetrain, transmitting torque from the transmission to the rear axle with minimal vibration, flex, or energy loss, even under the extreme demands of high-performance driving, aggressive acceleration, or high-speed stability. Constructed from **high-grade steel alloys**, the shaft features a robust, reinforced design to withstand the intense forces generated by the twin-turbocharged inline-six engine (N63T2) and the M Performance Package s enhanced power output, which can exceed 600 horsepower in the M8 Competition. The **universal joints (U-joints)** at both ends are precision-balanced and sealed with high-temperature grease to prevent premature wear, ensuring longevity and reliability even in demanding conditions. The driveshaft is engineered to maintain perfect alignment with the transmission output flange and the rear differential input, minimizing parasitic drag and maximizing efficiency. For AWD models, this component integrates seamlessly with the **haldex all-wheel-drive system**, allowing for dynamic torque distribution between the front and rear axles while maintaining structural integrity under varying load conditions. Whether installed in a standard M8 or a heavily modified performance variant, this driveshaft is a direct-fit replacement, compatible with the **G16 platform s specific mounting points and clearances**, and is often specified for restomods, track days, or high-mileage replacements where durability and performance are paramount. Its design adheres to BMW s rigorous engineering standards, ensuring compatibility with the vehicle s **electronic stability control (DSC), adaptive suspension, and M-specific tuning**, making it an essential upgrade for enthusiasts seeking to preserve or enhance the M8 s legendary driving dynamics.

### **Analysis of Buying a BMW M850 xDrive (G16) with the Specified Driveshaft (Part Number: 8485741, 20-25 Years, 1461 Transmission)**

#### **Overview of the Vehicle**

The BMW M850 xDrive (G16) is a high-performance luxury sedan based on the 8 Series, featuring a twin-turbocharged V8 engine (530 hp), all-wheel drive (AWD), and a 10-speed automatic transmission (1461). The driveshaft part number **8485741** corresponds to the **rear driveshaft assembly** for this model, which is critical for AWD functionality.

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### **Pros of Buying a Used M850 xDrive (G16) with This Driveshaft**

1. **Superior Performance and Driving Dynamics**

- The twin-turbo V8 delivers strong acceleration (0-60 mph in 4.3 seconds) and a thrilling driving experience, especially with the M Sport package.

- The AWD system (xDrive) provides excellent traction in various conditions, though it adds complexity and cost compared to rear-wheel drive (RWD) models.

- The 10-speed automatic transmission (1461) offers smooth shifts and efficient power delivery, though it can be finicky if not maintained properly.

2. **Luxury and Comfort**

- The 8 Series is one of BMW s most luxurious sedans, with premium materials, advanced infotainment (iDrive 8), and high-end sound systems.

- Spacious cabin with excellent ergonomics, though rear legroom is limited compared to larger sedans.

- Adaptive suspension and available air suspension enhance ride comfort.

3. **Brand Prestige and Resale Value**

- BMW s M division commands high prestige, and the M850 retains strong resale value, especially for well-maintained examples.

- The G16 generation (2019 2023) is relatively new compared to older BMWs, reducing long-term reliability concerns.

4. **Reliability of the Driveshaft (8485741)**

- The rear driveshaft in AWD BMWs is a critical component, and the G16 s driveshaft design is robust, though it is subject to wear over time.

- If the driveshaft is in good condition (no cracks, proper lubrication, no excessive play), it should last the lifespan of the vehicle with proper maintenance.

- The part number suggests it is an OEM or high-quality aftermarket replacement, which is preferable for longevity.

5. **Aftermarket and Customization Potential**

- The M850 is highly customizable, with options for performance upgrades (exhaust, suspension, ECU tuning) and aesthetic modifications.

- Strong aftermarket support for BMW M models, including parts, tuning, and maintenance services.

6. **Safety Features**

- Equipped with advanced safety tech: BMW s iDrive 8, adaptive cruise control, lane-keeping assist, blind-spot monitoring, and autonomous emergency braking.

- Strong structural integrity and crash-test ratings.

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### **Cons of Buying a Used M850 xDrive (G16) with This Driveshaft**

1. **High Cost of Ownership**

- BMWs, especially M models, are expensive to maintain. Parts, labor, and diagnostics can be costly compared to mainstream brands.

- The AWD system adds complexity, increasing potential repair costs (e.g., differentials, transfer case, driveshafts).

- Fuel economy is poor ( 15-16 MPG combined), adding to long-term expenses.

2. **Complexity and Maintenance Requirements**

- The twin-turbo V8 requires regular maintenance, including valve adjustment (every 60,000 90,000 miles), oil changes with high-quality synthetic oil, and cooling system checks.

- The 10-speed transmission (1461) can be finicky; issues like delayed shifts or rough gear changes may require costly repairs if neglected.

- **U-joint wear or separation** (can cause clunks or vibrations).

- **Shaft cracks or bending** (often due to rough handling or off-road use).

- **Seal leaks** (leading to grease contamination and potential damage to the differential).

- AWD systems are more prone to issues than RWD, including differential leaks, transfer case problems, or driveshaft misalignment.

3. **Depreciation and Market Saturation**

- While the M850 retains value, it depreciates quickly in its first few years. Newer models (2023 ) may offer better long-term value.

- The luxury sedan market is competitive, with high-end alternatives (Mercedes S-Class, Audi A8, Genesis G90) offering similar features at comparable prices.

4. **Driving Practicality**

- The M850 is not ideal for daily commuting due to its size, fuel consumption, and high running costs.

- The AWD system adds weight ( 200 300 lbs over RWD), slightly reducing efficiency and handling agility.

- Parking and maneuverability can be challenging due to its length.

5. **Potential Driveshaft Issues**

- The driveshaft (8485741) is a common failure point in AWD BMWs, especially if the vehicle has been driven aggressively or off-road.

- **Clunking or rattling noises** (especially over bumps).

- **Vibrations or shuddering** (indicating worn U-joints or misalignment).

- **Grease leaks** (from the driveshaft seals).

- Replacement is expensive ( $1,500 $3,000 for labor and parts), and DIY is difficult due to the complexity of AWD systems.

- If the driveshaft has been previously repaired or replaced, ensure the work was done by a reputable shop with OEM-quality parts.

6. **Software and Tech Limitations**

- The iDrive 8 system is powerful but can be glitchy, requiring occasional resets or updates.

- Some features (e.g., wireless carplay, advanced driver aids) may require additional subscriptions or updates.

- BMW s remote services (e.g., keyless entry, remote start) can be inconvenient if the vehicle is stolen or the remote is lost.

7. **Environmental and Ethical Considerations**

- The V8 engine is not fuel-efficient and contributes to higher emissions compared to modern hybrids or electric sedans.

- BMW s sustainability practices have faced criticism, though the G16 generation includes some eco-friendly features (e.g., recycled materials).

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### **Key Considerations Before Purchase**

1. **Driveshaft Condition**

- **Inspect visually**: Look for cracks, dents, or bent sections. Check for grease leaks around the U-joints and seals.

- **Test drive**: Listen for clunks, rattles, or vibrations, especially over rough roads or during acceleration/deceleration.

- **Service history**: Verify if the driveshaft has been replaced or repaired. Ask for proof of OEM parts and professional installation.

- **Professional inspection**: Have a trusted mechanic (preferably one familiar with BMW AWD systems) perform a thorough check, including a driveshaft alignment test.

2. **Transmission Health**

- The 10-speed automatic (1461) should shift smoothly without delays or harsh engagements. Listen for unusual noises (grinding, whining).

- Check for fluid leaks under the vehicle and confirm the transmission fluid has been changed recently (every 60,000 100,000 miles).

- A transmission flush or rebuild may be needed if fluid is dark or burnt-smelling.

3. **Engine and Cooling System**

- Timing belt/chain (if applicable) and water pump have been serviced.

- Cooling system is pressure-tested and free of leaks.

- No unusual noises (knocking, ticking) under acceleration or at idle.

4. **AWD System**

- Test all AWD functions (e.g., switching between AWD and RWD modes if available).

- Check for leaks from the differentials, transfer case, or driveshafts.

- Ensure the AWD system engages smoothly (no delays or warning lights).

5. **Budget for Repairs**

- Set aside **10 20% of the purchase price** for unexpected repairs, especially if the vehicle is older or lacks a full service history.

- Prioritize vehicles with **full maintenance records**, including driveshaft, transmission, and AWD service.

6. **Alternative Options**

- **BMW M5 Competition (F90)**: RWD-only, slightly more efficient, and often cheaper to maintain.

- **Mercedes-AMG E63 S**: Similar performance but with a different drivetrain (RWD or 4Matic).

- **Audi RS7**: Another high-performance luxury sedan with AWD, though with a different brand s maintenance costs.

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### **Final Recommendation**

**

Details:

STOCK NUMBER: #1279. All parts come with a 30-day warranty. Model: BMW M850i drive. AWD, Automatic Transmission ONLY.

Large Items Shipping.

part #: 8485741 prices

• $179.10-$599.95

specifications universajoin:

• for models: G16, Awd
• for makes: Bmw
• for years: 1925-2020
• mpn: 8485741
• type: Driveshaft
• ipn: 26108485741
• placement on vehicle: Rear
• transmission type: Automatic
• country of origin: Germany
• california prop 65 warning: Motor Vehicles California Requires The Following Notice, Oils And Fluids, Battery Posts, Terminals And Related Accessories Which Contain Lead And Lead Compounds And Other Chemicals Known To The State Of California To Cause Cancer, Birth Defects And Other Reproductive Harm. These Chemicals Are Found In Vehicles, Vehicle Parts And Accessories, Both New And As Replacements. When Being Serviced, These Vehicles Generate Used Oil, Waste Fluids, Grease, Fumes And Particulates, All Known To The State Of California To Cause Cancer, Birth Defects, And Reproductive Harm.

offer universajoin:

• best offers: True
• options: Ship-to-home
• started: April 22, 2026
• availability: In Stock
• quantity: 1
• sold: 0

returns universajoin:

• time: 60 Days
• policy: Returns Accepted
• paid by: Seller

general universajoin:

• Transmission Drivetrain > Driveshafts Parts > Driveshafts
• condition: Used

shipping universajoin:

• type: Fixed
• service: UPS Ground
• transit: 3-7 Days
• carrier: UPS
• cost: $49.95
• class: Standard

seller universajoin:

• city: Oceanside, California
• rating: 100.0%
• # reviews: 18629

payments universajoin:

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• wallet: Paypal
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