BMW 7009899 Rear Seat Bottom

( Part Type: Seat ), ( Color: Black ), ( Ipn: 7009899 ), ( Manufacturer Warranty: 1 Month ), ( Material: Leather ), ( Performance Part: No ), ( Placement On Vehicle: Rear )

Review BMW Oem Sedan Black Leather Rear Seat Bottom fits MONTANA E46

The **BMW E46 Montana Rear Seat Bottom (Part Number: 7009899)** is a meticulously engineered aftermarket replacement part designed to restore the original functionality, comfort, and aesthetic appeal of the rear seat cushions in BMW s iconic E46 series, particularly models equipped with the Montana package. This high-quality aftermarket seat bottom is crafted to match the precise dimensions and ergonomic contours of the factory-fit components, ensuring a seamless fit that eliminates gaps, sagging, or misalignment common issues that arise with aging or damaged original seat upholstery. Engineered from durable, premium-grade materials, including a reinforced foam core and a robust, abrasion-resistant outer cover, this seat bottom is built to withstand the rigors of daily use while maintaining its shape and resilience over time. The cover material is typically a blend of synthetic leather or high-density vinyl, offering a balance of luxury, easy maintenance, and resistance to stains, UV degradation, and wear, making it ideal for both urban commuters and weekend adventurers. Beyond its functional benefits, the E46 Montana Rear Seat Bottom is designed with attention to detail, featuring subtle stitching and color-coding that aligns with the original BMW interior design language, ensuring a cohesive and polished appearance. Whether replacing a worn-out original seat or upgrading for enhanced comfort and durability, this aftermarket part serves as a reliable solution for owners seeking to preserve the timeless elegance and performance of their E46 while extending the vehicle s lifespan. Its compatibility with a wide range of E46 models including the 330i, 330Ci, and 325i makes it a versatile choice for enthusiasts and restorers alike, bridging the gap between practicality and heritage.

### **Pros and Cons of Buying a BMW E46 M5 (09899) with a Rear Seat Bottom (Montana Modification)**

#### **Pros**

1. **Performance and Reputation**

The BMW E46 M5 is one of the most iconic and desirable performance sedans ever produced. It features a naturally aspirated inline-6 engine (4.0L S54) producing around **400 420 hp** (depending on the year and tuning), paired with a six-speed manual or six-speed SMG (sequential manual gearbox). This makes it a track-ready machine with strong acceleration (0-60 mph in 4.5 seconds) and a high-revving, throaty exhaust note that enthusiasts love.

2. **Reliability (With Proper Maintenance)**

While BMWs of this era are not as bulletproof as modern cars, the E46 M5 is generally more reliable than standard E46 models due to its high-performance components. With regular oil changes, transmission maintenance, and suspension tuning, many examples last well beyond 150,000 miles. The S54 engine is durable if kept within its limits (avoiding excessive boost or forced induction).

3. **Aftermarket Support and Modifications**

- **Engine tuning** (e.g., MHD, JB4, or custom ECU flashing) for more power.

- **Exhaust systems** (cat-back or full systems for better flow and sound).

- **Suspension upgrades** (coilovers, lower springs, or poly bushings for better handling).

- **Braking upgrades** (larger rotors, better pads, and calipers for track use).

- **Interior mods** (leather upgrades, custom steering wheels, or infotainment retrofits).

The **Montana rear seat bottom** (a popular mod to remove the rear seat and install a flat floor) is a significant upgrade for track use or daily driving, improving weight distribution and lowering the center of gravity.

4. **Driving Experience**

The E46 M5 is a driver s car with precise steering, a well-balanced chassis, and a manual transmission that offers incredible engagement. Even with the SMG, the shift times are quick, and the car feels very responsive. The Montana mod further enhances this by improving weight distribution and allowing for better tire fitment.

5. **Resale Value (For Well-Maintained Examples)**

While not as high as modern BMWs, a well-documented E46 M5 with a Montana mod can still hold value, especially if it has a clean title, service records, and desirable features (e.g., manual transmission, early S54 engine).

6. **Track and Performance Potential**

With the right modifications (e.g., track suspension, upgraded brakes, and engine tuning), the E46 M5 can be a formidable track car. The Montana mod is particularly beneficial for track use, as it allows for better tire fitment and a more aggressive stance.

---

#### **Cons**

1. **High Maintenance Costs**

- **Oil changes** (synthetic oil every 5,000 7,500 miles to prevent sludge buildup).

- **Transmission maintenance** (SMG units can be finicky; manual transmissions require clutch and flywheel checks).

- **Suspension and bushings** (poly bushings are recommended to prevent wear).

- **Brakes** (high-performance brakes wear out quickly and can be costly to replace).

- **Electrical issues** (common in older BMWs, including faulty sensors, wiring harnesses, or infotainment glitches).

- **Engine cooling** (the S54 engine runs hot; a high-flow radiator and upgraded water pump are often needed).

2. **Rust and Bodywork Concerns**

Many E46s, especially those from the late 1990s and early 2000s, suffer from **rust in critical areas** (wheel arches, sills, and floor pans). A thorough inspection (or a rust report) is essential before purchasing. The Montana mod can exacerbate rust issues if the rear subframe or floor pans are compromised.

3. **Fuel Economy and Running Costs**

The E46 M5 is **not fuel-efficient** expect around **12 15 MPG** in real-world driving. Gasoline prices add up quickly, and the car s thirst makes it expensive to own long-term compared to modern hybrids or turbocharged engines.

4. **Comfort and Practicality**

While the E46 M5 is a fantastic driver s car, it is **not a comfortable daily driver** for long trips. The suspension is stiff, the seats are supportive but not plush, and the cabin can feel cramped compared to modern BMWs. The Montana mod removes the rear seat entirely, making it impractical for passengers or cargo.

5. **Aging Technology**

- **Advanced infotainment** (early models have basic CD/MP3 players; later ones get iDrive, but it s outdated by today s standards).

- **Driver-assistance features** (no adaptive cruise, lane-keeping, or advanced safety tech).

- **Modern connectivity** (Bluetooth, Apple CarPlay, or Android Auto are not standard).

These limitations can be mitigated with aftermarket upgrades, but they remain a drawback for tech-savvy buyers.

6. **Insurance Costs**

The E46 M5 is a **high-risk insurance target** due to its performance capabilities and high value. Premiums can be significantly higher than for a comparable non-performance BMW or modern car.

7. **Potential Hidden Issues**

- **Water pump failures** (common in the S54 engine; a high-flow pump is recommended).

- **Transmission issues** (SMG units can develop shift solenoids or clutch problems; manual transmissions may need clutch upgrades).

- **Suspension wear** (control arms, ball joints, and bushings degrade over time).

- **Exhaust leaks** (common in the S54 s dual exhaust system).

- **Electrical gremlins** (faulty sensors, wiring, or infotainment failures).

8. **Limited Legality for Track Use**

While the E46 M5 is a great track car, some modifications (especially those exceeding homologation limits) may not be street-legal in all regions. Always check local laws before heavily modifying the car for track use.

---

### **Conclusion**

The **BMW E46 M5 with a Montana rear seat bottom** is a **fantastic choice for enthusiasts** who prioritize **performance, driving dynamics, and modding potential** over practicality and modern comfort. It offers an unmatched driving experience, strong aftermarket support, and the ability to be transformed into a track-ready machine. However, it comes with **high maintenance costs, aging technology, and practical limitations** that make it less ideal for daily commuting or long-distance travel.

If you are **passionate about BMWs, willing to invest in maintenance, and enjoy tinkering with your car**, the E46 M5 is an excellent purchase. However, if you seek **a more comfortable, fuel-efficient, or low-maintenance vehicle**, you may want to consider alternatives like a modern turbocharged sedan or a well-maintained non-performance BMW.

---

### **Recommendation**

- You are an **enthusiast who values driving dynamics and performance**.

- You have **budgeted for regular maintenance and potential repairs**.

- You plan to **modify the car** (engine, suspension, brakes) for track or street use.

- You are **willing to compromise on comfort and practicality** for the joy of ownership.

- You find a **well-documented example** with a **clean title, service history, and no major rust or mechanical issues**.

- You need a **daily driver for long commutes or family use**.

- You are **unprepared for high maintenance costs** (expect **$1,000 $3,000 per year** in upkeep).

- You prefer **modern technology, fuel efficiency, or lower insurance costs**.

- The car has **significant rust, electrical issues, or a neglected service history**.

The E46 M5 with a Montana mod is a **legendary performance car** that rewards its owners with an exhilarating driving experience. For the right buyer someone who appreciates classic BMW engineering and isn t deterred by its quirks it remains one of the best sports sedans ever made. Just be prepared for the responsibilities that come with owning a high-performance classic.

Details:

60 Day Warranty. Free of excess wear and damage. Please verify fitment using the part # if available. Light blue stalkers exterior, black interior.

Part # 7009899, Removed from a 2004 330i sedan with sport package and auto transmission. Guaranteed fully functional!, Good used condition. Scrapped due to front end collision and EWS failure. Ready for install.

specifications seainterio:

• for models: E46, Montana
• for makes: Bmw
• part type: Seat
• color: Black
• ipn: 7009899
• manufacturer warranty: 1 Month
• material: Leather
• performance part: No
• placement on vehicle: Rear

returns seainterio:

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

general seainterio:

• condition: Used
• Interior Parts Accessories > Seats, Parts Accessories > Seats

payments seainterio:

• wallet: Paypal
• other
• credit card: Mastercard

shipping seainterio:

• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• type: Fixed
• transit: 3-7 Days
• cost: $0.00
• carrier: FedEx

offer seainterio:

• started: March 9, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1

seller seainterio:

• # reviews: 7626
• rating: 99.9%
• city: Canon City, Colorado

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