1. Industrial Heat Exchangers Products
  2. sku: 2785405989964663
  3. PARTCATALOG PC-1004138

PARTCATALOG PC-1004138 Mercedes Benz Ambient Air Temperature Sensor C55 Amg

Pc-1004138 Partcatalog Ambient Air Temperature Sensor Compatible With Mercedes-benz C55 Amg 2005 200

( Brand: Partcatalog ), ( Manufacturer Part Number: PC-1004138 ), ( Part Type: Sensor )

Review PARTCATALOG Ambient Air Temperature Sensor Compatible Mercedes benz C55 Amg 200

The **PartCatalog PC-1004138 Ambient Air Temperature Sensor** is a precision-engineered component designed specifically for the **Mercedes-Benz C55 AMG (2005-2008)** model, serving as a critical element in the vehicle s climate control and engine management systems. This high-performance sensor is strategically positioned to monitor the ambient air temperature outside the vehicle, providing real-time data to the car s electronic control unit (ECU) to optimize airflow, fuel injection, and cabin comfort. Crafted to meet Mercedes-Benz s rigorous engineering standards, the sensor features a robust, corrosion-resistant housing and a reliable thermistor-based temperature detection mechanism, ensuring accurate readings even under varying environmental conditions. Its compact yet durable design allows for seamless integration into the vehicle s intake system, where it interfaces directly with the engine s air intake manifold or climate control module. The sensor s precision calibration ensures that the vehicle s engine management system can adjust air-fuel ratios, throttle response, and cabin heating/cooling performance with exceptional efficiency, contributing to both optimal engine performance and passenger comfort. Ideal for original equipment replacement (OEM) or aftermarket upgrades, this sensor is a must-have for maintaining the C55 AMG s legendary driving dynamics while preserving its advanced technological features. Whether addressing a malfunctioning sensor, upgrading for enhanced reliability, or restoring factory specifications, the **PC-1004138 Ambient Air Temperature Sensor** delivers the accuracy and durability expected from Mercedes-Benz s high-performance lineup.

### **Pros and Cons of buying a PartCatalog PC-1004138 Ambient Air Temperature Sensor for a Mercedes-Benz C55 AMG (2005-2008)**

#### **Pros:**

1. **OEM Compatibility** The sensor is designed as an original equipment part for the C55 AMG, ensuring a perfect fit and seamless integration with the vehicle s engine management system. This reduces the risk of compatibility issues that can arise with aftermarket alternatives.

2. **Reliability and Durability** Mercedes-Benz components are engineered to meet strict quality standards, which typically means longer lifespan and fewer failures compared to lower-quality aftermarket sensors. This can prevent intermittent issues like incorrect engine performance readings or warning lights.

3. **Accurate Readings** An accurate ambient air temperature (AAT) sensor ensures proper fuel injection, ignition timing, and overall engine efficiency. Inaccurate readings can lead to poor fuel economy, rough idling, or even engine misfires, so a reliable sensor helps maintain optimal performance.

4. **Prevents Diagnostic Trouble Codes (DTCs)** A faulty AAT sensor can trigger codes such as **P0113 (Throttle Position Sensor Circuit Malfunction)** or **P0112 (Throttle Position Sensor Circuit Range/Performance)**. Replacing it with a genuine or high-quality aftermarket part can resolve these issues and prevent unnecessary diagnostic trouble.

5. **Warranty Coverage** If the sensor is purchased from an authorized dealer or a reputable supplier, it may come with a warranty, providing peace of mind against premature failure.

6. **Easy Installation** The sensor is typically located near the air intake or throttle body, making it a straightforward replacement for a mechanic with basic tools. No major modifications or adjustments are usually required.

7. **Supports Emissions Compliance** An accurate AAT sensor helps the engine control unit (ECU) maintain proper emissions levels, which is particularly important for vehicles subject to regular emissions testing.

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#### **Cons:**

1. **Higher Cost** Genuine OEM sensors are more expensive than aftermarket alternatives. The PC-1004138 sensor may cost significantly more than a third-party equivalent, which could be a deterrent for budget-conscious buyers.

2. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., eBay, random online marketplaces) increases the risk of receiving a counterfeit or low-quality sensor. This can lead to premature failure and wasted money.

3. **Limited Availability** Depending on the supplier, genuine OEM sensors may not always be in stock, requiring additional time or effort to source. Aftermarket options are often more readily available.

4. **Mixed Reviews on Aftermarket Alternatives** While some aftermarket sensors are high-quality and compatible, others may not meet the same standards as OEM parts. Researching specific brands (e.g., ACDelco, Bosch, or trusted Mercedes-compatible suppliers) is essential to avoid poor performance.

5. **Labor Costs** If the sensor is not easily accessible or requires disassembly of components (e.g., air intake, throttle body), labor costs at a mechanic s shop may add to the total expense.

6. **Potential for Overkill** If the sensor is not the root cause of the issue (e.g., the problem is actually a faulty throttle body or wiring issue), replacing it alone may not resolve the problem, leading to frustration and additional diagnostics.

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### **Ending Conclusion:**

The **PartCatalog PC-1004138 ambient air temperature sensor** is a **reliable, OEM-quality replacement** for the Mercedes-Benz C55 AMG (2005-2008), offering accurate readings, long-term durability, and compatibility with the vehicle s systems. It is the **best choice for owners who prioritize performance, emissions compliance, and long-term reliability** and can afford the higher cost.

However, if **budget is a concern**, a **high-quality aftermarket alternative** (e.g., from **Bosch, ACDelco, or a reputable Mercedes-compatible supplier**) can be a cost-effective option, provided thorough research is done to ensure compatibility and quality. Always **purchase from trusted sellers** (authorized dealers, specialty auto parts stores, or verified online retailers) to avoid counterfeit or defective parts.

For most C55 AMG owners experiencing **AAT sensor-related issues (e.g., check engine light, poor idle, or fuel economy problems)**, the **OEM sensor is the safest and most effective solution**.

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### **Recommendation:**

- **If you want the best long-term solution and can afford it:** Purchase the **PartCatalog PC-1004138 OEM sensor** from an **authorized Mercedes-Benz dealer or a trusted auto parts supplier** (e.g., RockAuto, AutoZone, or a local Mercedes specialist).

- **If you prefer a budget-friendly option:** Research and select a **high-quality aftermarket sensor** (e.g., **Bosch 0 261 229 005** or **ACDelco 21R-1055**) from a **reputable brand** and **verified seller**. Ensure it matches the **part number and pinout** of the original sensor.

- **If unsure about the issue:** Have a **diagnostic scan** performed first to confirm that the AAT sensor is indeed faulty before purchasing. Sometimes, related components (wiring, connectors, or the ECU) may need attention as well.

**Final Verdict:** The PC-1004138 is the **preferred choice for OEM reliability**, while a **well-researched aftermarket alternative** can be a viable substitute if cost is a factor. Always prioritize **quality over price** to avoid recurring problems.

Details:

Installation is as straightforward it gets - no fuss, complications. Features: Includes 1 One Ambient Air Temperature Sensor. Exceptional Quality and Performance: This OE replacement ambient air temperature sensor is designed to meet, if not exceed, the performance quality standards of original equipment installed on your vehicle. Part Number: PC-1004138.

Its manufactured to OE specifications for an exact fit and smooth operation. Fits list of vehicles in image gallery fitment chart. Experience a seamless replacement process, made to match the original part perfectly. Get the perfect fit and optimal performance every time with our replacement parts.

Perfect Compatibility: Compatibility is key.: Brand Name: PartCatalog. Its designed to fit and function just like the original equipment OE part. Direct Replacement, No Fuss: This OE replacement ambient air temperature sensor is meticulously designed for your specific vehicles make and model, promising a direct fit.

Manufacturer: PartCatalog.

specifications indheatexchanger:

  • brand: Partcatalog
  • mpn: Pc-1004138
  • part type: Sensor

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  • condition: New
  • HVAC Refrigeration > HVAC Refrigeration Components > Heat Exchangers

offer indheatexchanger:

  • availability: In Stock
  • quantity: 1
  • sold: 0
  • started: June 10, 2026
  • options: Ship-to-home

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  • time: 30 Days
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  • type: Fixed
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  • rating: 98.4%
  • # reviews: 2091
  • city: US
part type: sensor,
category: business & industrial > hvac refrigeration > hvac refrigeration components > heat exchangers, sku: 2785405989964663,
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