1. Industrial Heat Exchangers Products
  2. sku: 2792317270174663
  3. PARTCATALOG PC-679312

PARTCATALOG PC-679312 Mercedes Benz Ambient Air Temperature Sensor GL550

Pc-679312 Partcatalog Ambient Air Temperature Sensor Compatible With Mercedes-benz Gl550 2008 2009

( Brand: Partcatalog ), ( Manufacturer Part Number: PC-679312 ), ( Part Type: Sensor )

Review PARTCATALOG Ambient Air Temperature Sensor Compatible Mercedes benz

The **PartCatalog PC-679312 Ambient Air Temperature Sensor** is a precision-engineered component designed exclusively for the **Mercedes-Benz GL550 models from 2008 and 2009**, 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 surrounding the vehicle, providing real-time data to the onboard computer (ECU) to optimize fuel efficiency, emissions control, and passenger comfort. Constructed with Mercedes-Benz s stringent quality standards, the sensor features a robust, corrosion-resistant housing and a reliable thermistor-based detection mechanism, ensuring accurate readings even in fluctuating environmental conditions. Its compact yet durable design allows for seamless integration into the vehicle s under-hood or exterior mounting locations, where it interfaces directly with the engine control module (ECM) and climate control systems. Whether deployed in cold winter climates or hot summer conditions, this sensor delivers consistent and dependable performance, helping maintain optimal engine operation, air conditioning efficiency, and overall driving dynamics. Ideal for both original equipment replacement and aftermarket upgrades, the **PC-679312** is a direct-fit solution that restores factory-level functionality, ensuring compatibility with the GL550 s advanced diagnostics and calibration protocols. Its precision engineering and long-term reliability make it an essential component for maintaining the vehicle s performance, safety, and longevity.

**Pros and Cons of buying a PartCatalog PC-679312 Ambient Air Temperature Sensor for a Mercedes-Benz GL550 (2008-2009)**

### **Pros:**

1. **Direct Fitment** The sensor is specifically designed for the 2008-2009 Mercedes-Benz GL550, ensuring compatibility without modifications. This reduces the risk of installation issues or incorrect part selection.

2. **OEM Quality or High-Replacement Standard** PartCatalog typically sources parts that meet or exceed OEM specifications, ensuring reliability and performance similar to factory components. This minimizes the likelihood of premature failure or sensor inaccuracies.

3. **Easy Installation** As a direct-fit part, the sensor should be straightforward to replace, requiring only basic tools (e.g., socket wrench, scanner for diagnostic codes if needed). No wiring or complex adjustments are usually required.

4. **Prevents Engine Misfires or Performance Issues** A faulty ambient air temperature sensor can cause incorrect fuel mixture calculations, leading to rough idling, reduced power, or even engine misfires. Replacing it restores proper sensor readings, which is critical for optimal engine performance and emissions compliance.

5. **Cost-Effective Long-Term Solution** While the upfront cost may seem higher than generic alternatives, a high-quality sensor reduces the risk of repeated failures or secondary damage (e.g., to the ECU or catalytic converter from incorrect readings).

6. **Warranty or Return Options** PartCatalog often provides warranties or return policies, offering peace of mind in case the sensor fails prematurely or doesn t fit as expected.

7. **Access to Technical Support** Purchasing from a reputable supplier like PartCatalog may include access to customer service or technical assistance for installation guidance or troubleshooting.

---

### **Cons:**

1. **Higher Upfront Cost** Compared to aftermarket or generic sensors, an OEM or high-quality replacement part may be more expensive. This could be a deterrent for budget-conscious buyers, though the long-term benefits often justify the cost.

2. **Potential Overkill for Minor Issues** If the sensor failure is intermittent or caused by a minor wiring issue (e.g., corroded connector), replacing the sensor alone may not resolve the problem. Diagnosing the root cause (e.g., with an OBD-II scanner) is essential before purchasing.

3. **Limited Availability of Aftermarket Alternatives** While PartCatalog offers reliable options, some buyers may prefer cheaper aftermarket sensors from brands like Bosch, Delphi, or ACDelco. These can be equally effective but may lack the same level of support or fitment guarantees.

4. **Installation Complexity (If Sensor Location is Hard to Reach)** The ambient air temperature sensor is typically located near the engine bay, often behind the grille or near the radiator. In some GL550 models, accessing it may require removing the grille or other components, which could add time and effort to the repair.

5. **Risk of Counterfeit Parts** Even from reputable suppliers, there is a slight risk of receiving a counterfeit or substandard part, though PartCatalog s sourcing practices mitigate this risk. Always verify the part s authenticity upon receipt.

6. **No Additional Features** Unlike some aftermarket sensors, this part may not include extra features (e.g., digital displays or compatibility with diagnostic tools), though this is rarely a concern for basic replacement purposes.

---

### **Conclusion:**

The **PartCatalog PC-679312 ambient air temperature sensor** is a **strong choice** for restoring proper sensor function in your 2008-2009 Mercedes-Benz GL550. Its **direct fitment, reliability, and compatibility with OEM standards** make it a dependable option, especially if you prioritize long-term performance and ease of installation. While the cost may be higher than generic alternatives, the **reduced risk of failure and potential engine issues** often outweighs this drawback.

For buyers on a tight budget, **comparing prices with other reputable suppliers (e.g., RockAuto, Amazon, or local auto parts stores)** may reveal equally good alternatives. However, if you value **brand reliability and support**, PartCatalog is a safe and well-supported option.

---

### **Recommendation:**

1. **Verify the Symptom** Before purchasing, confirm that the sensor is indeed faulty by checking for **check engine lights (P0107, P0108, P0109 codes)** with an OBD-II scanner. This ensures you re addressing the correct issue.

2. **Compare Prices** Check for similar sensors from other trusted suppliers (e.g., Bosch 0 261 229 034 or Delphi DMSA1000) to ensure you re getting the best value.

3. **Inspect the Sensor Location** If the sensor is difficult to access, consider whether you re comfortable with the installation or if you ll need professional help.

4. **Purchase from PartCatalog** If you ve confirmed the need for replacement and are satisfied with their sourcing and warranty, proceed with the purchase. Their parts are generally reliable, and their customer service can assist with fitment or installation questions.

5. **Follow Installation Guidelines** Refer to a **Mercedes-Benz service manual** or **YouTube tutorials** for your specific model year to ensure proper removal and installation.

**Final Verdict:** **Buy the PartCatalog PC-679312 sensor** if you want a **direct-fit, high-quality replacement** with minimal risk of failure. For cost-sensitive buyers, explore aftermarket alternatives first, but be cautious of quality trade-offs. Always prioritize **proper diagnosis** before purchasing.

Details:

Mounting Type: Flange Mount. 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. Get the perfect fit and optimal performance every time with our replacement parts.

Part Number: PC-679312. Features: Includes 1 One Ambient Air Temperature Sensor. Perfect Compatibility: Compatibility is key. Installation is as straightforward it gets - no fuss, complications.

Its designed to fit and function just like the original equipment OE part. Experience a seamless replacement process, made to match the original part perfectly.: Brand: PartCatalog. Fits list of vehicles in image gallery fitment chart.

Brand Name: PartCatalog. Its manufactured to OE specifications for an exact fit and smooth operation. 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 #: pc679312 price

  • $56.45

specifications indheatexchanger:

  • brand: Partcatalog
  • mpn: Pc-679312
  • part type: Sensor

returns indheatexchanger:

  • method: Money back
  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

seller indheatexchanger:

  • rating: 98.4%
  • city: US
  • # reviews: 2099

general indheatexchanger:

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

offer indheatexchanger:

  • availability: In Stock
  • started: June 11, 2026
  • sold: 0
  • quantity: 1
  • options: Ship-to-home

shipping indheatexchanger:

  • class: Economy
  • cost: $0.00
  • transit: 5-8 Days
  • type: Fixed
  • service: Economy

payments indheatexchanger:

  • credit card: Discover
  • other
  • wallet: Paypal
part type: sensor,
category: business & industrial > hvac refrigeration > hvac refrigeration components > heat exchangers, sku: 2792317270174663,
Partcatalog PC-679312 Is Similar To:
indheatexchanger logo
1 offer $56.45 USD
  • New. Offer #1 priced at $56.45 + $0.00 shipping estimate = $56.45* total. It's manufactured to OE specifications for an exact fit and smooth operation. Includes 1 (One) Ambient Air Temperature Sensor.FREE SHIPPING

Copyright © indheatexchanger.com