BMW F2065477 Rear Seat Bolster M340I

( Manufacturer Part Number: F2065477 ), ( Part Type: Seat ), ( Universal Fitment: No ), ( Country Of Origin: Germany ), ( Placement On Vehicle: Rear )

Review BMW Rear Seat Bolster Pair Oem fits 330I G20 2019–2024

The **BMW F20 330i / M340i (G20) Rear Seat Bolster (Part Number: F2065477, 2019 2024)** is a precision-engineered component designed to enhance both comfort and safety in the rear seating area of BMW s fifth-generation 3 Series sedan. Crafted from high-grade, durable materials, this bolster is integral to the vehicle s ergonomic seating system, providing targeted lumbar and lower back support to reduce fatigue during long drives. The F20 bolster is specifically tailored to the G20 platform, ensuring a seamless fit with the contoured rear seat cushions and the integrated lumbar adjustment mechanisms found in the 330i and M340i trims. Its design prioritizes structural integrity while maintaining the signature BMW blend of sporty agility and refined luxury, making it a critical element for drivers who demand both performance and comfort. The bolster s integration with the seat s active adjustment features allows for fine-tuned positioning, accommodating a wide range of passenger preferences from relaxed cruising to dynamic driving postures. Whether installed in a standard 330i or the more performance-oriented M340i, this part ensures that the rear seating experience remains supportive, reducing slouching and promoting better posture, even during extended journeys. For BMW owners seeking to restore or upgrade their vehicle s rear seating comfort, this bolster is an essential replacement, maintaining the brand s commitment to precision craftsmanship and driver-centric design.

### **Pros and Cons of Buying a 2019 2024 BMW F20/F21 330i/M340i (G20) with Rear Seat Bolster**

#### **Pros**

1. **Strong Performance and Driving Dynamics**

- The **330i (B58 engine)** and **M340i (S58 engine)** offer **306 hp (330i) and 382 hp (M340i)**, paired with an **8-speed ZF Steptronic transmission**, delivering smooth yet engaging acceleration.

- The **G20 platform** improves handling over the older F20/F21, with a **lower center of gravity**, sharper steering, and better weight distribution, making it more responsive than its predecessors.

- **xDrive AWD (optional)** enhances traction in wet or slippery conditions, though it adds complexity and cost.

2. **Refined Interior and Technology**

- The **iDrive 8 infotainment system** (with **8-inch touchscreen**) is more intuitive than earlier models, featuring **Apple CarPlay, Android Auto, and wireless charging** (on later models).

- **Premium materials** (aluminum trim, soft-touch surfaces, and available leather/alcaneta seats) improve comfort and aesthetics.

- **Heated/ventilated front seats** (standard on higher trims) and **adaptive cruise control (ACC) with Stop & Go** enhance convenience.

3. **Reliability Improvements Over Older F20/F21 Models**

- The **B58/S58 engines** are more refined than the N55/N54, with **direct injection, turbocharging, and twin-scroll turbos**, reducing turbo lag and improving efficiency.

- **Stronger chassis and suspension tuning** (adjustable dampers on M340i) make it more durable than the softer-sprung F20/F21.

- **Reduced common issues** (e.g., oil consumption in N55, electrical gremlins in early F20 models) compared to earlier generations.

4. **Fuel Efficiency and Practicality**

- The **330i achieves 22 25 MPG (combined)**, while the **M340i is slightly less efficient ( 20 23 MPG)** but still competitive for a turbocharged sedan.

- **Rear seat bolster** (a rare feature) provides **better side-impact protection** and comfort for passengers, though rear legroom is still tight.

- **Available panoramic sunroof** improves interior lighting and ambiance.

5. **Resale Value and Brand Prestige**

- BMWs hold their value reasonably well, especially for well-maintained examples.

- The **M340i badge** adds desirability, making it a strong choice for enthusiasts who want **performance without the full M3 price tag**.

---

#### **Cons**

1. **High Cost of Ownership**

- **Maintenance and repairs** (especially for BMW-specific parts) can be expensive, particularly for **transmission, suspension, and electrical components**.

- **Tire and brake wear** is higher due to the sporty nature of the car, adding to long-term costs.

- **Insurance premiums** are likely to be **higher than average** for a sedan in this class.

2. **Rear Seat and Cargo Space Limitations**

- **Tight rear legroom** (similar to earlier F20/F21 models) makes long trips uncomfortable for adults.

- **Cargo capacity is modest ( 12 15 cu. ft. behind rear seats)**, which may be insufficient for families or frequent haulers.

- The **rear seat bolster** improves safety but does not significantly improve space.

3. **Potential Electrical and Software Issues**

- **iDrive glitches** (freezing, lagging) can occur, though updates have improved reliability.

- **Sensor-related problems** (e.g., parking sensors, blind-spot monitoring) may require recalibration or repairs.

- **Adaptive cruise control (ACC) and lane-keeping assist** can be finicky in some conditions.

4. **Suspension and Ride Quality Trade-offs**

- While the **G20 platform improves handling**, the **stiffer suspension** (especially on M340i) makes the ride **less comfortable on rough roads** compared to competitors like the **Audi A4 or Genesis G70**.

- **Road noise** can be intrusive at highway speeds, though better than the F20/F21.

5. **Depreciation and Market Saturation**

- The **330i/M340i segment is competitive**, with alternatives like the **Audi A4, Genesis G70, and Lexus IS** offering similar performance at lower costs.

- **Used market pricing** may not reflect the car s value as strongly as luxury brands like Mercedes or Audi.

6. **Minor Build Quality Quirks**

- Some owners report **plastic panel rattles** (especially in lower trims) and **door ajar sensors** that trigger false alarms.

- **Clutch wear** (if manual transmission is equipped) can be an issue over time, though the **8-speed auto is more reliable**.

---

### **Conclusion**

The **2019 2024 BMW F20/F21 330i/M340i (G20)** is a **well-rounded sedan** that excels in **performance, driving enjoyment, and premium features**, making it an excellent choice for **enthusiasts who prioritize handling and tech** over space and cost efficiency. However, **high ownership costs, limited rear space, and potential electrical quirks** mean it s not the best fit for **budget-conscious buyers or families**.

If you **value a **sporty, tech-forward sedan with strong acceleration and a refined interior**, this BMW is a **solid pick**, especially the **M340i** for those who want **more power without the M3 s price**. However, if **practicality, lower running costs, or a more comfortable ride** are priorities, alternatives like the **Audi A4, Genesis G70, or Lexus IS** may be worth considering.

### **Recommendation**

- **Buy if:** You want a **fun-to-drive, high-performance sedan** with **modern tech**, are prepared for **higher maintenance costs**, and don t need **maximum rear space**.

- **Avoid if:** You prioritize **fuel efficiency, long-term affordability, or a more spacious interior**.

- **Best for:** **Single drivers, couples, or performance-oriented buyers** who can justify the **premium price and ownership costs**.

Would you like insights on **specific model years, alternatives, or maintenance tips**?

Details:

PARTS CAME OFF A 2021 BMW 330I RWD M-SPORT. G20 BODY/CHASSIS. 2.0L TURBO I4 B46D ENGINE. 8-SPEED AUTOMATIC TRANSMISSION 2WD.

part #: f2065477 prices

• $129.99-$839.99

specifications seainterio:

• for models: 330i, G20
• for makes: Bmw
• for years: 2019-2024
• mpn: F2065477
• part type: Seat
• universal fitment: No
• country of origin: Germany
• placement on vehicle: Rear

general seainterio:

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

shipping seainterio:

• cost: $0.00
• transit: 2-6 Days
• type: Fixed
• service: Standard
• class: Standard

returns seainterio:

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

seller seainterio:

• city: Anderson, South Carolina
• rating: 99.8%
• # reviews: 14747

offer seainterio:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: April 8, 2026
• quantity: 1

payments seainterio:

• credit card: Discover
• wallet: Paypal
• other

Bmw F2065477 Is Similar To:

• 020-146 4 Genuine Bmw Control Light Seat Safety Belt (22.2% similar) Bmw E21 control light seat safety belt 3'ER please verify part number and connector to ensure fitment. Used item with light wear and blemishes, as seen in the E21 3'ER control safety belt fits 1982 FROM:05 01 1976 TO: ended. Doing this gives us an opportunity to troubleshoot the situation best ...(September 1st, 2018)
• 52-11-1-824-773 Bmw Left Bottom Horsehair Seat Pad Oem (32.2% similar) Left cushion bottom pad oem for bmw ti Ti this is a brand new horsehair straight from germany. Not many left, possibly discontinued. Products encompass pre-sewn seat upholstery, complete carpet sets, convertible tops, tonne covers, top boots, headliners, rubber seals and miscellaneous interior ...(July 24th, 2018)
• 52-11-1-824-774 Bmw Right Bottom Horsehair Seat Pad Oem (33.6% similar) Brand new, never been taken out of the plastic it came in. Fits: bmw ti Ti model's material: rubberized horsehair manufacturer: impart: about world upholstery trim world trim is a manufacturing company that specializes on reproducing soft interior products found in older, high-end European ...(July 24th, 2018)
• 52-12-1-824-775 Bmw Backrest Horsehair Seat Pad Oem (31.3% similar) Products encompass pre-sewn seat upholstery, complete carpet sets, convertible tops, tonne covers, top boots, headliners, rubber seals and miscellaneous interior panels all made in the USA but sold over world. Not many left, possibly discontinued. Backrest pad oem for bmw ti Ti this is a brand new ...(July 24th, 2018)
• 61318368934 Bmw E39 E38 Oem (24.2% similar) Part come off a 2003 bmw 525I. Up for sale is a oem original bmw E38 E39 switch...(September 5th, 2017)
• 635csi Driver 633csi Side Seat Leather Bmw (35.8% similar) ...(August 18th, 2015)
• 8198485 Bmw Oem E39 Rear (25% similar) Part come off a 1999 bmw 528I...(September 30th, 2017)
• 8198500 Bmw Oem E39 Front (15.7% similar) Up for sale is a oem original bmw E39 5 series seat belt...(October 30th, 2017)
• 2-point Bmw 1974-1976 2002 2002tii Rear Retracting Seat Belts Repa Original (44.6% similar) Bmw 2002 2002 TII E10 probably earlier years as well original reap rear 2 point seat belts very good working condition need cleaned up a bit no cracks or tears missing one bolt washer nut...(August 16th, 2016)
• Detroit 7078 Oem 1997-99 Bmw Roadster German (24.1% similar) There are 6 yards available. New old stock oem upholstery fabric for german vehicles bmw the color is black this piece 55 inches wide. Actual item in photos...(March 10th, 2017)
• 3.0 Seats Bmw Cs Rear Bucket E9 Pair (36% similar) In storage for 18 years. Ship to lower 48 us states only. 2 rear bucket seats from a one seat has a tear. Price is for both seats. Black leather and cloth...(June 14th, 2015)