MERCEDES Accelerator Gas Pedal Tps Sensor 234.MB1314 Benz
fits model: Ml350. make: Mercedes. year: 2014.
( Part Type: Pedal Sensor ), ( Conditions Options: Gas Pedal With Sensor ), ( Genuine Oem: Yes ), ( Ipn: 234.mb1314 ), ( Make: Mercedes-benz ), ( Manufacturer Warranty: 90 Day )
Review MERCEDES benz Accelerator Gas Pedal Tps Sensor fits ML350 2014
The **Mercedes-Benz 234.MB1314 Accelerator Gas Pedal Throttle Position Sensor (TPS)** is a precision-engineered component designed exclusively for the **2014 Mercedes-Benz ML350 (W164)** and its related variants, ensuring seamless integration with the vehicle s advanced electronic throttle control system. This high-performance sensor plays a critical role in regulating engine power delivery by monitoring the position of the accelerator pedal with exceptional accuracy, allowing the engine control unit (ECU) to optimize fuel injection, ignition timing, and turbocharger boost levels for smooth, responsive, and efficient operation. Crafted from durable materials and assembled to Mercedes-Benz s stringent quality standards, the **234.MB1314 TPS** features a robust potentiometer mechanism that provides real-time feedback to the vehicle s electronic systems, eliminating throttle lag and ensuring consistent performance under varying driving conditions whether cruising on the highway, accelerating from a standstill, or navigating tight city streets.
Beyond its functional excellence, this sensor is engineered to withstand the demands of Mercedes-Benz s **AMG-tuned** powertrain, which includes the **V8 4.7L M177 engine** in the ML350, delivering a balance of torque and precision. The **234.MB1314** is compatible with both **mechanical and electronic throttle systems**, making it a versatile upgrade or replacement option for owners seeking to restore factory-like performance after sensor failure or wear. Its compact yet rugged design ensures a secure fit within the accelerator pedal assembly, while its **OEM-grade wiring harness** and **resistant connectors** prevent signal interference, ensuring reliable communication between the pedal and the engine control module. Whether replacing a faulty sensor due to age, corrosion, or mechanical stress, or upgrading for enhanced throttle response, this **direct-fit replacement** guarantees the same level of precision and reliability as the original equipment, helping maintain the ML350 s legendary driving dynamics and luxury performance.
### Pros and Cons of Buying a Replacement **Mercedes-Benz 234.MB1314 Accelerator Gas Pedal Throttle Position Sensor (TPS) for a 2014 ML350**
#### **Pros:**1. **Compatibility and Fitment** The **234.MB1314** is a genuine or high-quality aftermarket part designed specifically for the **2014 Mercedes-Benz ML350 (M256 engine)**, ensuring proper fitment and functionality without modification.
2. **Reliability and Durability** A quality TPS sensor is built to last, reducing the risk of frequent failures that could lead to drivability issues, stalling, or poor acceleration. A well-made sensor minimizes wear over time.
3. **Performance Improvement** A faulty TPS can cause erratic throttle response, hesitation, or even engine misfires. Replacing it with a reliable unit restores smooth acceleration and optimal engine performance.
4. **Diagnostic Clarity** A bad TPS often triggers **check engine lights (CEL)** with codes like **P0120, P0121, P0122, or P0123**. Replacing it resolves these codes, allowing the ECU to function correctly without false readings.
5. **Prevents Further Damage** A failing TPS can stress the **throttle body, fuel system, or even the transmission** if the engine struggles to maintain proper throttle control. Replacing it early prevents secondary issues.
6. **Ease of Installation** The **234.MB1314** is typically a straightforward plug-and-play replacement, requiring only basic tools. Many owners report installation in under an hour with minimal technical skill.
7. **Cost-Effective Long-Term Solution** While the upfront cost may seem high, replacing a faulty TPS is far cheaper than dealing with **transmission damage, fuel system failures, or engine misfires** caused by prolonged TPS failure.
8. **Warranty Coverage (If Genuine or OEM-Equivalent)** Some aftermarket brands offer warranties, while genuine Mercedes parts come with factory-backed guarantees, providing peace of mind against early failure.
---
#### **Cons:**1. **Cost** A **genuine Mercedes-Benz TPS** or a high-quality aftermarket equivalent can be **expensive**, often ranging between **$150 $300 ** depending on the brand and retailer. This is one of the more costly sensors in a luxury vehicle.
2. **Potential Counterfeit Parts** If purchasing from an untrusted seller, there is a risk of receiving a **low-quality or counterfeit part**, which may fail prematurely or not function correctly. Always buy from reputable suppliers.
3. **Additional Labor Costs (If Not DIY)** If you do not perform the replacement yourself, **dealer or shop labor costs** can add **$100 $200 **, increasing the total expense.
4. **Recalibration Needs** Some modern Mercedes vehicles require **throttle body recalibration** after a TPS replacement. If not done properly, the engine may run poorly until the ECU relearns the new sensor s position.
5. **Compatibility Risks with Modified Vehicles** If the ML350 has been **tuned, modified, or had other engine changes**, a standard TPS may not work optimally. In such cases, a **custom or performance-oriented TPS** may be needed.
6. **Potential for Other Underlying Issues** A TPS failure can sometimes be **symptomatic of a larger problem**, such as:- **Faulty throttle body** (carbon buildup, sticking)
- **Wiring or connector issues** (corrosion, poor connections)
- **ECU or software glitches** (requiring a scan tool reset)
If these are ignored, the problem may recur.
7. **Limited Lifespan (If Poor Quality)** While a **genuine or high-end aftermarket TPS** should last the vehicle s lifespan, **cheap or low-quality sensors** may fail within **1 2 years**, leading to repeated replacements.
8. **Learning Curve for DIY Installation** While the job is manageable for most mechanics, **first-time installers** may struggle with:- **Removing the intake manifold** (if required)
- **Properly reconnecting wiring harnesses**
- **Ensuring the sensor is seated correctly** (misalignment can cause false readings)
---
### **Conclusion**
Replacing the **234.MB1314 TPS sensor** in your **2014 Mercedes-Benz ML350** is a **necessary repair** if the sensor is failing, as it directly impacts drivability, throttle response, and engine performance. The **pros outweigh the cons** for most owners, as a faulty TPS can lead to **costlier repairs** if left unaddressed.
The **main drawbacks** **cost and potential for counterfeit parts** can be mitigated by:- **Buying from a trusted supplier** (e.g., **Mercedes-Benz dealership, RockAuto, Amazon, or specialty auto parts stores**).
- **Performing the installation yourself** to avoid labor fees.
- **Ensuring proper recalibration** if required.
If the TPS is **genuine or high-quality**, the replacement will **restore optimal engine function, prevent further damage, and extend the lifespan of your ML350**.
---
### **Final Recommendation**
1. **Verify the Issue** Before purchasing, confirm the TPS is indeed faulty by:- Checking **OBD-II codes** (P0120 P0123).
- Testing the sensor with a **multimeter** (resistance should be ** 90 120 ohms at idle** and vary smoothly with pedal position).
- Inspecting for **physical damage, corrosion, or loose wiring**.
2. **Choose the Right Part**
- **Genuine Mercedes-Benz (OEM)** Most reliable but expensive.
- **High-quality aftermarket (e.g., Dorman, Bosch, or MB-approved brands)** Good balance of cost and reliability.
- **Avoid no-name or extremely cheap sensors** unless from a well-reviewed seller.
3. **Install Properly**
- Follow **Mercedes-Benz service manuals** or **YouTube tutorials** for the **M256 engine**.
- Ensure the **throttle body is clean** before reinstalling the sensor.
- If unsure, consult a **Mercedes specialist** for recalibration.
4. **Monitor Post-Installation**
- Clear the **check engine light** and perform a **test drive** to ensure smooth throttle response.
- Watch for **recurring issues**, which may indicate a **throttle body problem** or **ECU misconfiguration**.
**Verdict:** **Worth the investment** if the TPS is confirmed faulty. A well-executed replacement will **restore your ML350 s performance, prevent further damage, and avoid more expensive repairs down the line.**
Details:
Menu Accelerator Gas Pedal With TPS Sensor 2014 Mercedes ML350. Just the option. All Engines and Transmission must be shipped to a commercial address. Toggle navigation Menu.
Model ML350.
specifications pedalspadsaz:
- for models: Ml350
- for makes: Mercedes
- for years: 2014
- part type: Pedal Sensor
- conditions options: Gas Pedal With Sensor
- genuine oem: Yes
- ipn: 234.mb1314
- make: Mercedes-benz
- manufacturer warranty: 90 Day
shipping pedalspadsaz:
- cost: $0.00
- class: Standard
- carrier: USPS
- transit: 5-10 Days
- type: Fixed
- service: USPS Ground Advantage
returns pedalspadsaz:
- time: 30 Days
- policy: Returns Accepted
- paid by: Seller
payments pedalspadsaz:
- other
- credit card: Discover
- wallet: Google-pay
seller pedalspadsaz:
- rating: 99.9%
- # reviews: 11669
- city: Pompano Beach, Florida
general pedalspadsaz:
- Car Truck Parts Accessories > Interior Parts Accessories > Pedal Assemblies, Pads Parts
- condition: Used
offer pedalspadsaz:
- sold: 0
- availability: In Stock
- quantity: 1
- options: Ship-to-home
- best offers: True
- started: May 13, 2026
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