FOUR SEASONS 37824 Engine Cooling Fan Temperature Switch

( Brand: Four Seasons ), ( Manufacturer Part Number: 37824 ), ( Label: Temperature Switch ), ( Product Type: Factory Replacement ), ( Type: Temperature ), ( Connector Shape: Oval ), ( Connector Gender: Male ), ( Description: Switch-temp /radiator Mount ), ( Fitting Thread Size: No Threads/clip In ), ( Meets / Exceeds Oem : Yes ), ( Mnt Sys Loc: System Mount ), ( Ipn: 37824 A14174 Sw1502 ), ( All Interchanges: 37824, A14174, Sw1502 )

Review FOUR SEASONS Engine Cooling Fan Temperature Switch More fits PASSAT A6

The **Seasons 37824 Engine Cooling Fan Temperature Switch** is a high-performance, precision-engineered component designed specifically for the **Volkswagen Passat (A6) models**, ensuring optimal thermal management and reliable operation under demanding driving conditions. This temperature switch is a critical part of the vehicle s cooling system, responsible for monitoring the engine s coolant temperature and activating the radiator fan when necessary to prevent overheating. Crafted with durable materials and built to exacting standards, this switch features a robust construction that guarantees long-lasting performance, even in extreme environments. Its robust design incorporates a high-quality bimetallic strip or electronic sensor (depending on the model variant), which accurately detects temperature fluctuations and triggers the fan at the correct threshold, typically around **95 105 C (203 221 F)**, to maintain engine temperatures within safe operating ranges. Ideal for both original equipment replacement (OEM) and aftermarket upgrades, this switch is engineered to match the factory specifications of the Passat A6, ensuring seamless integration with the vehicle s cooling system. Whether used in high-performance applications, extended highway driving, or stop-and-go urban traffic, this temperature switch provides consistent and reliable protection against overheating, helping to extend the lifespan of the engine and prevent costly damage. Its compact yet sturdy design ensures easy installation, making it a straightforward upgrade for mechanics and DIY enthusiasts alike. Trusted for its precision, durability, and compatibility, the Seasons 37824 is the perfect choice for maintaining peak cooling efficiency in your Volkswagen Passat A6.

Buying the **Genuine VW/Audi 37824 Engine Cooling Fan Temperature Switch (N90)** for a **Passat A6 (1.8T, 2.8L V6, or 3.2L V6 models)** has both advantages and disadvantages. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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1. **Exact Fit and Functionality** The genuine VW/Audi part is designed specifically for your vehicle s cooling system, ensuring proper integration with the engine bay wiring and mounting points. It will replicate the original performance without compatibility issues.

2. **Reliability and Durability** VW/Audi parts are engineered to meet strict quality standards, reducing the risk of premature failure compared to aftermarket alternatives. The temperature switch is built to last the lifespan of the vehicle if maintained properly.

3. **Warranty Coverage** Purchasing from an authorized dealer or VW/Audi-approved supplier may include a warranty (typically 1 2 years), providing peace of mind against defects.

4. **Compatibility with Original Systems** The part is calibrated to work seamlessly with the vehicle s ECM (Engine Control Module) and cooling system sensors, ensuring accurate fan activation based on engine temperature.

5. **Resale Value** If you plan to sell the vehicle later, having original equipment parts can be a selling point for buyers who prefer factory specifications.

6. **No Modification Needed** Unlike some aftermarket parts, the genuine switch requires no additional wiring or adjustments, making installation straightforward.

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1. **Higher Cost** Genuine VW/Audi parts are significantly more expensive than aftermarket alternatives. The price can range from **$150 $300 **, depending on the source (dealer vs. online retailer).

2. **Longer Lead Times** Genuine parts may not be in stock at local dealers, requiring an order from a warehouse or VW/Audi s distribution center, which can take days or weeks.

3. **Potential Overkill for Minor Issues** If the failure is isolated to the temperature switch (e.g., a faulty sensor or wiring issue), replacing the entire switch may be unnecessary. Diagnosing the root cause first could save money.

4. **Limited Availability for Older Models** If your Passat A6 is from an older generation (pre-2000s), finding a genuine part may be difficult, and you might need to source it from a salvage yard or international supplier.

5. **Environmental and Ethical Concerns** Purchasing new genuine parts contributes to e-waste and resource consumption. Some buyers prefer refurbished or aftermarket options for sustainability reasons.

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1. **Aftermarket Temperature Switches** Brands like **Bosch, Denso, or ACDelco** offer compatible switches at a fraction of the cost (typically **$30 $80**). These are often just as reliable and come with warranties.

2. **Refurbished/Genuine Rebuilt Parts** Websites like **eBay, RockAuto, or local junkyards** sell used or rebuilt switches. This can save money while still providing a functional part.

3. **DIY Testing and Repair** Before replacing the switch, test the **coolant temperature sensor (G66)** and wiring harness for faults. A faulty sensor or corroded connectors can mimic switch failure.

4. **Fan Relay or ECM Issues** Rarely, the problem may lie with the **fan relay (J292)** or a glitch in the ECM. Replacing these components (if faulty) could resolve the issue without needing a new switch.

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The **37824 genuine VW/Audi engine cooling fan temperature switch** is the **best choice for long-term reliability, exact fitment, and compatibility** with your Passat A6. It is ideal if:

- You prioritize **original equipment quality** and **warranty coverage**.

- You have **verified the switch is indeed faulty** (not the sensor or wiring).

- You are **not concerned about cost** and want to avoid potential aftermarket risks.

However, if **budget is a concern** or you suspect a **different component is failing**, an **aftermarket or refurbished switch** may be a practical alternative. Always **diagnose the issue thoroughly** (using a scan tool to check for error codes) before purchasing.

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- Buy the **genuine 37824 part** from an **authorized VW/Audi dealer or reputable online supplier** (e.g., VW Parts Direct, RockAuto).

- Ensure the part matches your **specific model year and engine variant** (e.g., 1.8T vs. 2.8L V6).

- Opt for a **high-quality aftermarket switch** (e.g., **Bosch 0 261 205 001** or **Denso CT101**).

- Verify compatibility with your vehicle s **ECM and wiring diagram** before purchasing.

- **Test the coolant temperature sensor (G66)** and **fan relay** first.

- Use an **OBD-II scanner** to check for **cooling system error codes** (e.g., P0115, P0116, P0117, P0118).

- Consider **upgrading to a high-performance cooling fan** (if applicable) or **improving coolant flow** (e.g., replacing the thermostat) to prevent future issues.

**Final Verdict:** The genuine part is the **most reliable choice**, but **aftermarket options are viable** if sourced carefully. Always **diagnose thoroughly** before replacing components.

Details:

SHIPPING INFORMATION: This ships via standard shipping. For example, if it states with fog lamps, this means your vehicle must be equipped lamps. This does not mean that fog lamps are included. Manufacturer Part Number: 37824.

Four Seasons Engine Cooling Fan Temperature Switch for Passat, A6 More 37824, Fitment Chart:: Years: Make: model: Sub model: Drive Type: 2003 -2004AudiRS6, 2001 AudiA4Avant Comfort, Luxury, 2001 AudiA4Basico, 2001 AudiA4Confort, 2001 AudiA4Luxury, 2001 AudiA4Sport, 1998 -2002AudiA4, 1998 2002AudiA4 Quartered, 1998 -2004AudiA6, 1998 2004AudiA6 1998 -2005VolkswagenPassat.

part #: 37824 prices

• $96.03-$107.82

specifications ocoosys:

• for models: A6, Passat
• brand: Four Seasons
• mpn: 37824
• label: Temperature Switch
• product type: Factory Replacement
• type: Temperature
• connector shape: Oval
• connector gender: Male
• description: Switch-temp /radiator Mount
• fitting thread size: No Threads/clip In
• meets / exceeds oem : Yes
• mnt sys loc: System Mount
• ipn: 37824 A14174 Sw1502
• all interchanges: 37824, A14174, Sw1502

returns ocoosys:

• policy: Returns Accepted
• time: 60 Days
• paid by: Seller

offer ocoosys:

• quantity: 4
• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: April 14, 2026

general ocoosys:

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

seller ocoosys:

• city: USA
• # reviews: 62970
• rating: 99.7%

payments ocoosys:

• credit card: Visa
• wallet: Paypal
• other

shipping ocoosys:

• cost: $0.00
• class: Standard
• transit: 3-8 Days
• service: Standard
• type: Fixed

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