BMW US ADDITIONAL Passenger Right Rear Window Regulator 135-59566R 30436764

( Brand: Bmw Us Additional ), ( Manufacturer Part Number: 750I ), ( Part Type: Window Regulator ), ( Conditions Options: Rh, Sdn, Pw ), ( Genuine Oem: Yes ), ( Ipn: 135-59566r ), ( Placement: Passenger/right ), ( Manufacturer Warranty: 6 Month )

Review BMW US ADDITIONAL Passenger Right Rear Window Regulator fits 750I 740I 2016–2021

The **BMW 135-59566-R Passenger Right Rear Window Regulator** is a precision-engineered component designed exclusively for the **2016 2021 BMW 7 Series (G12/G11) 740i models**, specifically tailored to the **passenger-side rear window** (part number **30436764**). This high-performance window regulator is a critical element of the vehicle s electrical window system, ensuring smooth, reliable, and silent operation while maintaining structural integrity under the demanding forces exerted during daily use. Crafted from durable materials, including reinforced plastics and precision-machined metal components, this regulator is engineered to withstand the rigorous demands of BMW s luxury architecture, where seamless functionality and long-term durability are paramount.

The **135-59566-R** regulator features an advanced **electric motor-driven mechanism**, complete with a **gear reduction system** that delivers precise, jerk-free movement, eliminating the common issues of sticking or uneven operation often found in lower-quality aftermarket replacements. Its **sealed bearing assembly** minimizes friction, reducing wear and extending the lifespan of the window glass and surrounding components, while the **integrated cable guide system** ensures proper alignment, preventing cable fraying or misalignment that could lead to window malfunctions. This regulator is fully compatible with BMW s **CAN bus communication system**, allowing seamless integration with the vehicle s infotainment and driver controls, ensuring smooth operation via the power window switches, voice commands, or remote keyless entry.

For installation, the **135-59566-R** is designed to fit directly into the **passenger-side rear door frame**, replacing the original OEM unit with minimal modification required. Its **universal mounting brackets** and **pre-aligned motor housing** simplify the replacement process, reducing labor time and ensuring a professional fit. Whether addressing a **failed motor**, **stuck window**, or **noise issues** in the rear passenger window, this regulator provides a direct, factory-level solution that restores both form and function to the vehicle s luxury features. Ideal for BMW enthusiasts, professional mechanics, and dealership service centers, this component upholds the brand s reputation for **German engineering excellence**, delivering a quiet, efficient, and long-lasting performance that matches the expectations of the 7 Series discerning owners.

### **Pros and Cons of buying a BMW 135-59566R Passenger Right Rear Window Regulator (F20/F21 740i, 2016-2021, Part #30436764)**

1. **Direct Fitment** This part is specifically designed for the **F20/F21 740i (2016-2021)** models, ensuring compatibility without modifications.

2. **OEM Quality** As a genuine or high-quality aftermarket replacement, it should meet BMW s engineering standards, reducing the risk of premature failure.

3. **Reliability** Window regulators are critical components; a well-made replacement minimizes the risk of sudden breakdowns, especially in extreme weather conditions.

4. **Ease of Installation** Many aftermarket regulators come with clear instructions and are designed for straightforward installation, though some may require basic tools and mechanical skill.

5. **Prevents Further Damage** A failing regulator can damage the window track or glass; replacing it early avoids costly secondary repairs.

6. **Warranty Coverage** Reputable sellers often provide warranties (e.g., 6 months to 2 years), offering peace of mind against defects.

7. **Cost-Effective Alternative** While not the cheapest option, it is often more affordable than labor-intensive repairs or full window replacements.

1. **Price** Genuine BMW parts or high-quality aftermarket regulators can be expensive, sometimes costing **$150 $300 ** depending on the brand and seller.

2. **Installation Complexity** If you lack mechanical experience, professional installation may be required, adding labor costs (typically **$100 $200** per window).

3. **Availability of Counterfeit Parts** Some sellers may offer cheap knockoffs that fail quickly or lack proper seals, leading to leaks or malfunctions.

4. **Potential for Additional Wear** If the window track or glass is already damaged, replacing just the regulator may not fully resolve the issue, requiring further repairs.

5. **Limited Customization** Unlike some aftermarket upgrades, this is a functional replacement with no performance or aesthetic enhancements.

6. **Time-Consuming** If doing it yourself, installation can take **1 3 hours**, depending on your familiarity with the process.

7. **Resale Impact** While rare, a known regulator issue could slightly affect resale value, though this is usually negligible for well-maintained vehicles.

---

### **Conclusion**

Replacing a faulty passenger right rear window regulator is a **necessary maintenance task** to prevent further damage and ensure safety. The **135-59566R (30436764)** is a reliable choice for **F20/F21 740i models (2016 2021)**, balancing quality and compatibility. The decision to buy should weigh **budget, installation confidence, and part authenticity** against the risks of delayed replacement (e.g., stuck windows, water leaks, or glass damage).

If the regulator is failing (e.g., slow operation, sticking, or complete inoperability), **procrastinating is not advisable** a broken window regulator can become a safety hazard. Opt for a **reputable seller** (e.g., BMW Approved, RockAuto, or trusted local shops) to avoid counterfeit parts, and consider professional installation if unsure.

---

### **Recommendation**

- **Buy from a trusted source** (e.g., BMW Parts Store, RockAuto, or a well-reviewed aftermarket supplier) to ensure authenticity and quality.

- **Verify the part number** (30436764) matches your vehicle s exact configuration (e.g., manual vs. power windows, trim level).

- **Budget for installation** if DIY isn t feasible, factor in labor costs ( $100 $200).

- **Check for bundled items** some sellers include seals, clips, or tools to simplify installation.

- **Act promptly** a failing regulator can worsen over time, leading to more expensive repairs.

**Final Verdict:** This is a **worthwhile replacement** for maintaining your BMW s functionality and preventing minor issues from escalating. Prioritize quality over cost to avoid repeated failures.

Details:

Fill with fluid according to manufacturers recommended type and level. If heat tabs are melted or removed, warranty void. Check with the dealer as components may be different. B R Automotive does not guarantee mileage.

Must be installed and inspected by a factory trained certified technician. Cooling lines must be flushed of debris before installing. Small Parcel Shipping UPS/FedEx: Free shipping on all small parcel orders. Contact B R immediately prior to removing or repairing any components.

BMW 740I 16-21 R. BMW 750I 16-20 LWB 126.4 , R. Confirm proper gear ratio prior to installation. Timing belts, thermostat, water pump and other maintenance items must be replaced.

Brakes, seals, sensors, and lines should be inspected replaced as needed. Torque converter must be properly seated and aligned to the front pump. Engine oil pans must be re-sealed. No Labor or any other charges related to the sale installation of this product are warranted.

BMW 745e 20 R. Warranty does not include shift motor, switches, sensors, or seals. Inspect and replace as needed. Transfer Case.

No Hardware, Accessories. We remove oil pans to inspect automatic transmissions. Residential delivery is not included in the free shipping or our regional charges. Inspect and replace seals gaskets as needed.

Purchaser must replace seals, gaskets, and filter before installation re-seal the oil pan. Each item comes with a 6-month, part-only warranty for your peace of mind. Radiators must be flow tested or replaced receipts required.

part #: 750i prices

• $149.24-$305.00

specifications cardoorhandleei:

• for models: 750i, 740i
• for makes: Bmw
• for years: 2016-2021
• brand: Bmw Us Additional
• mpn: 750i
• part type: Window Regulator
• conditions options: Rh, Sdn, Pw
• genuine oem: Yes
• ipn: 135-59566r
• placement: Passenger/right
• manufacturer warranty: 6 Month

payments cardoorhandleei:

• credit card: Discover
• wallet: Paypal
• other

general cardoorhandleei:

• Car Truck Parts Accessories > Interior Parts Accessories > Window Cranks, Grab Handles Door Pulls
• condition: Used

seller cardoorhandleei:

• city: Eugene, Oregon
• rating: 98.0%
• # reviews: 67963

returns cardoorhandleei:

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

shipping cardoorhandleei:

• service: Standard
• transit: 3-8 Days
• cost: $0.00
• class: Standard
• type: Fixed

offer cardoorhandleei:

• started: February 3, 2026
• best offers: True
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0

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