DELPHI SX-6248 Coolant Temperature Sensor Engine Antifreeze Ir

( Brand: Delphi ), ( Manufacturer Part Number: SX-6248 ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C671 29-21 ), ( Placement On Vehicle: Belts Cooling Sensors ), ( Compatible Year: 2006 2005 2004 2003 2002 2001 ), ( Core Charge: Free No Core Charge ), ( Type: Engine Coolant Temperature Sensor ), ( Universal Fitment: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Delphi Engine Coolant Temperature Sensor )

Review DELPHI Coolant Temperature Sensor Bmw Engine Antifreeze Ir fits 325XI 2001–2006

The Delphi SX-6248 Coolant Temperature Sensor is a precision-engineered, high-performance replacement part designed specifically for the 2001 through 2006 BMW 325xi models, ensuring seamless integration with the engine s cooling system and maintaining optimal performance. This sensor is a critical component of your vehicle s engine management system, responsible for monitoring the temperature of the coolant as it circulates through the engine block, providing real-time data to the engine control unit (ECU) to regulate fuel injection, ignition timing, and idle speed for peak efficiency and emissions compliance. Crafted from durable, corrosion-resistant materials, the Delphi SX-6248 is built to withstand the harsh conditions of continuous engine operation, including exposure to antifreeze, heat, and vibration, while delivering accurate and reliable readings throughout its operational lifespan. The sensor features a robust threaded design with a precision-machined thermistor element, ensuring a secure and leak-free fit within the engine s coolant passage. Whether you re restoring a classic BMW or maintaining a well-used vehicle, this sensor guarantees consistent performance, helping to prevent overheating, fuel inefficiency, and potential engine damage. Backed by Delphi s reputation for quality and compatibility, the SX-6248 is an ideal choice for enthusiasts and mechanics alike, offering a direct, plug-and-play replacement that restores your BMW s cooling system to factory specifications with confidence.

### Pros and Cons of buying a Delphi SX-6248 Coolant Temperature Sensor for a 2001-2006 BMW 325xi Engine

1. **Direct Fitment and Compatibility** The Delphi SX-6248 is specifically designed for the M52B30 engine found in the 2001-2006 BMW 325xi, ensuring proper threading, electrical connections, and sensor placement. This reduces the risk of installation errors and misfit issues that can occur with generic or aftermarket sensors.

2. **Reliability and Quality** Delphi is a well-known manufacturer of automotive sensors, known for producing high-quality, durable components that meet or exceed OEM standards. This sensor is likely to provide consistent performance and longevity, reducing the likelihood of premature failure.

3. **OEM-Level Performance** Since this sensor is an OEM replacement part, it should function identically to the original equipment sensor, maintaining accurate temperature readings for the engine control unit (ECU). This ensures optimal engine performance, fuel efficiency, and emissions compliance.

4. **Widely Available and Easy to Install** The Delphi SX-6248 is a stock part for many BMW dealerships and aftermarket suppliers, making it easy to purchase. Installation is straightforward, typically requiring only basic tools (socket wrench, torque wrench, and possibly a thermometer for calibration if needed).

5. **Cost-Effective for Long-Term Use** While the upfront cost may be higher than some aftermarket alternatives, the reliability of a Delphi sensor can save money in the long run by avoiding repeated replacements or related engine issues (e.g., overheating, poor fuel economy, or check engine lights).

6. **Compatibility with Diagnostic Tools** The sensor s design aligns with BMW s diagnostic protocols, ensuring it will work seamlessly with OBD-II scanners and diagnostic software. This makes troubleshooting easier if issues arise.

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1. **Higher Upfront Cost** Compared to some aftermarket or generic sensors, the Delphi SX-6248 may be more expensive. However, this cost is often justified by its quality and longevity.

2. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., unverified online marketplaces) could result in receiving a counterfeit or low-quality replica. Always buy from reputable suppliers (e.g., BMW dealerships, authorized distributors, or well-reviewed online retailers).

3. **Limited Customization** Unlike some aftermarket sensors, the Delphi part is not customizable in terms of resistance values or calibration. If your engine has unique requirements (e.g., modified tuning), you may need to verify compatibility with your setup.

4. **Installation May Require Drainage of Coolant** Depending on the sensor s location, you may need to drain some coolant to remove the old sensor and install the new one. This adds minor inconvenience but is not a major drawback.

5. **No Warranty with Aftermarket Purchase** If you buy from a non-dealer source, the warranty may be limited or nonexistent. BMW dealerships typically offer warranties, but aftermarket sellers vary widely.

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The Delphi SX-6248 coolant temperature sensor is an excellent choice for replacing the sensor in a 2001-2006 BMW 325xi (M52B30 engine) due to its direct fitment, reliability, and OEM-level performance. While it may cost more upfront than some alternatives, its quality and compatibility make it a dependable long-term solution. The key to a successful purchase is sourcing the part from a trusted seller to avoid counterfeit items and ensuring proper installation to maintain engine health.

- **Buy from an authorized dealer or reputable supplier** (e.g., BMW Parts Online, RockAuto, or a local BMW specialist) to guarantee authenticity.

- **Verify the sensor s resistance values** (typically around 1,700 ohms at 20 C/68 F) to ensure it matches your engine s requirements.

- **Follow BMW s recommended torque specifications** (usually 25-30 Nm) during installation to prevent damage to the sensor or engine block.

- **Consider pairing this with a coolant flush** if the sensor is being replaced due to age or contamination in the cooling system.

For most owners, the Delphi SX-6248 is the safest and most practical choice for restoring proper engine temperature monitoring in a 325xi.

Details:

Delphi Coolant Temperature Sensor for 2001 - 2006 BMW 325XI Engine Antifreeze ir: Status: In Stock.

part #: sx6248 prices

• $39.55-$49.74

specifications ocoosys:

• for models: 325xi
• for makes: Bmw
• for years: 2001-2006
• brand: Delphi
• mpn: Sx-6248
• manufacturer warranty: 1 Year / 12, 000 Miles
• ipn: C671 29-21
• placement on vehicle: Belts Cooling Sensors
• compatible year: 2006 2005 2004 2003 2002 2001
• core charge: Free No Core Charge
• type: Engine Coolant Temperature Sensor
• universal fitment: Direct Replacement
• bundle description: 1 Pc Genuine Delphi Engine Coolant Temperature Sensor

returns ocoosys:

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

payments ocoosys:

• credit card: Mastercard
• other
• wallet: Paypal

shipping ocoosys:

• class: Standard, Expedited
• transit: 2-5 Days
• service: Standard, Expedited
• type: Fixed
• cost: $0.00

offer ocoosys:

• sold: 0
• quantity: 2
• options: Ship-to-home
• started: February 9, 2026
• availability: In Stock

general ocoosys:

• Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
• condition: New

seller ocoosys:

• city: Indianapolis, Indiana
• rating: 99.5%
• # reviews: 620604

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