SIMENS 12721709853 Accelerator Pedal Actuator Sensor M73 V12

( Brand: Simens ), ( Manufacturer Part Number: 12721709853 ), ( Part Type: Actuator Pedal Sensor ), ( Manufacturer Warranty: 1 Month ), ( Vintage Part: No ), ( Country Of Origin: Germany )

Review SIMENS Bmw M73 V12 Accelerator Pedal Actuator Sensor fits E38 750IL 1995–2001

The **Siemens 12721709853 (95-01 BMW E38 750iL M73 V12 Accelerator Pedal Actuator Sensor)** is a precision-engineered component designed exclusively for BMW s legendary **E38 7 Series (1994 2001)**, specifically tailored to the high-performance **750iL and M73 V12 models**. This sensor serves as the critical interface between the driver s accelerator pedal and the vehicle s electronic engine management system, ensuring seamless communication between human input and the sophisticated fuel injection and ignition controls of the powerful **7.0L V12 engine**. Crafted with Siemens signature reliability and engineering precision, this part adheres to BMW s strict OEM specifications, guaranteeing flawless integration with the vehicle s **M52/M57 engine management systems** and **DME (Digital Motor Electronics)** architecture.

The actuator sensor features a robust, corrosion-resistant construction, incorporating high-grade materials to withstand the demanding conditions of high-performance driving, including aggressive throttle inputs and prolonged use in demanding environments. Its design incorporates a **linear potentiometer mechanism**, allowing for precise and responsive throttle position feedback to the engine control unit (ECU). This ensures optimal engine performance, smooth acceleration, and accurate idle management, even under heavy loads or at high RPMs. The sensor s **magnetic or Hall-effect-based detection system** (depending on the specific model variant) provides consistent and repeatable signals, eliminating common issues such as erratic throttle response, stalling, or hesitation that can plague aftermarket or poorly calibrated replacements.

For BMW enthusiasts seeking to restore or enhance the driving dynamics of their **E38 750iL or M73**, this Siemens sensor is an ideal choice due to its **direct OEM compatibility**, eliminating the need for complex wiring harness modifications or additional calibration. It is particularly well-suited for applications involving **performance tuning, engine swaps, or restoration projects**, where maintaining the original vehicle s electronic integrity is paramount. Whether replacing a failed sensor due to wear, corrosion, or electrical failure, or upgrading as part of a broader engine management overhaul, this Siemens part delivers the durability and performance expected from a genuine BMW component. Its installation is straightforward, requiring only basic mechanical and electrical skills, and it is designed to seamlessly integrate with the vehicle s existing throttle linkage and wiring loom, ensuring a hassle-free upgrade.

### **Pros and Cons of buying a Siemens 12721709853 (95-01 BMW E38 750iL M73 V12 Accelerator Pedal Actuator Sensor)**

1. **Direct Fitment** This part is specifically designed for the 1995-2001 BMW E38 750iL with the M73 V12 engine, ensuring compatibility without modification.

2. **High Quality** Siemens is a reputable manufacturer known for producing reliable automotive sensors and actuators, reducing the risk of premature failure.

3. **Easy Installation** The part is designed for straightforward replacement, typically requiring only basic tools and minimal disassembly.

4. **Prevents Driving Issues** A faulty accelerator pedal actuator sensor can cause erratic throttle response, stalling, or failure to accelerate. Replacing it resolves these symptoms.

5. **Long-Term Reliability** Since the M73 V12 is a high-performance engine, using an OEM-quality or high-grade aftermarket part like this one helps maintain engine health and performance.

6. **Warranty Coverage** Siemens parts often come with manufacturer warranties, providing peace of mind against defects.

7. **Supports Modern Diagnostics** The sensor integrates with BMW s OBD-II system, allowing proper error code clearing and preventing false diagnostics.

1. **Cost** As an OEM or high-quality aftermarket part, this sensor is more expensive than generic or low-end alternatives, which may be a concern for budget-conscious buyers.

2. **Potential Counterfeit Risk** If purchased from an untrusted seller (e.g., unverified online marketplaces), there is a risk of receiving a fake or low-quality part that fails prematurely.

3. **Additional Labor Costs** While installation is relatively simple, some buyers may need to pay a mechanic for labor, especially if they lack experience with BMW E38 repairs.

4. **Compatibility Confusion** Some aftermarket sensors may not perfectly match the original sensor s electrical or mechanical specifications, though Siemens parts are less likely to have this issue.

5. **Limited Availability** Depending on the region, finding this exact part in stock may require ordering from specialty suppliers, which could delay repairs.

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The **Siemens 12721709853 accelerator pedal actuator sensor** is a **highly recommended choice** for BMW E38 750iL owners experiencing throttle-related issues. Its **direct fitment, reliability, and compatibility** with the M73 V12 make it a superior option compared to cheaper alternatives. While the **upfront cost is higher**, the long-term benefits including **preventing engine damage, ensuring smooth operation, and avoiding diagnostic headaches** outweigh the drawbacks for most owners.

If budget is a concern, **verifying the seller s reputation** and ensuring the part is **genuine Siemens** is critical. For those who prioritize **performance, durability, and peace of mind**, this is the best available solution.

- **Buy from a trusted source** (e.g., BMW specialty parts dealers, reputable online retailers with return policies).

- **Compare prices** but avoid sacrificing quality for significant savings.

- **Follow installation instructions carefully** to ensure proper function.

- **Clear error codes** after replacement to confirm the issue is resolved.

For most E38 750iL owners, this is the **best available option** for restoring proper throttle response and maintaining engine reliability.

Details:

Shipping prices for ground apply only to the continental USA. All electronics are tested before removed from vehicle.

specifications pedalspadsaz:

• for models: E38, 750il
• for makes: Bmw
• for years: 1995-2001
• brand: Simens
• mpn: 12721709853
• part type: Actuator Pedal Sensor
• manufacturer warranty: 1 Month
• vintage part: No
• country of origin: Germany

general pedalspadsaz:

• Car Truck Parts Accessories > Interior Parts Accessories > Pedal Assemblies, Pads Parts
• condition: Used

payments pedalspadsaz:

• credit card: Discover
• wallet: Paypal
• other

returns pedalspadsaz:

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

shipping pedalspadsaz:

• cost: $0.00
• type: Fixed
• class: Standard
• service: Standard
• transit: 4-10 Days

seller pedalspadsaz:

• rating: 99.7%
• city: Rancho Cordova, California
• # reviews: 3248

offer pedalspadsaz:

• best offers: True
• started: April 28, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1