8040317

The BMW 8040317 and 804031805 are heat insulators designed specifically for BMW models E93 M3 and E90 3 Series with the S65 V8 engine. These insulators are an essential addition to the vehicle's cooling system, enhancing its performance and providing improved driving comfort.

The 8040317 and 804031805 are manufactured using high-quality materials, ensuring durability and effectiveness. They are designed to fit perfectly into the engine compartment, insulating the coolant lines from the external environment. By doing so, they prevent the coolant from cooling down too quickly, especially during cold weather conditions. This results in optimal engine temperature, which is crucial for the vehicle's overall performance and longevity.

Moreover, these insulators reduce the engine warm-up time, allowing the driver to enjoy a comfortable cabin temperature sooner. They also help in maintaining the engine temperature during heavy loads or high-speed driving, ensuring consistent power delivery and reducing the strain on the engine.

The BMW 8040317 and 804031805 are easy to install, and no modification to the vehicle is required. They come with clear installation instructions, making the process straightforward even for those without prior experience. The insulators are lightweight and do not add significant weight to the vehicle, maintaining its optimal balance and handling characteristics.

In summary, the BMW 8040317 and 804031805 are essential components for BMW E93 M3 and E90 3 Series with S65 V8 engines. They help in improving the vehicle's performance by insulating the coolant lines, reducing engine warm-up time, maintaining optimal engine temperature, and providing consistent power delivery. These insulators are easy to install and made from high-quality materials, ensuring durability and effectiveness.

The BMW E93 M3 Tunnel Heat Insulator with part numbers 8040317 for the E90 S65 V8 engine and 804031805 for the E93 M3 specifically is an accessory designed to improve the driving experience by reducing interior cabin temperature, especially in cold weather conditions. This insulator is installed in the engine compartment to prevent cold air from entering the car through the tunnel between the engine and the passenger compartment.

1. Improved Comfort: The main advantage of this insulator is the increased comfort it provides by keeping the cabin warmer in cold weather conditions. This can be especially beneficial during winter months or in areas with colder climates.

2. Reduced Engine Cooling Demand: By reducing the amount of cold air that enters the engine compartment, the insulator can help maintain optimal engine temperature, which can lead to improved performance and reduced wear on the engine.

3. Cost-Effective: Compared to other heating solutions, such as seat heaters or cabin heaters, the insulator is a cost-effective solution for keeping the cabin warm.

1. Installation Complexity: The installation process for the insulator can be complex, as it involves removing the engine cover, accessing the tunnel, and installing the insulator in place. This may require some mechanical knowledge and tools.

2. Potential for Decreased Airflow: Depending on the design of the insulator, there is a risk that it could restrict airflow to the engine, which could lead to increased temperatures and decreased performance.

3. Limited Impact on Cabin Temperature: While the insulator can help keep the cabin warmer, it may not provide a significant temperature increase, especially in extremely cold conditions or for extended periods of time.

In conclusion, the BMW E93 M3 Tunnel Heat Insulator can be a worthwhile investment for those who frequently drive in cold weather conditions and are looking for a cost-effective solution to improve cabin comfort and maintain engine temperature. However, it's important to consider the installation complexity and potential for decreased airflow before making a decision.

Recommendation: If you frequently drive in cold weather conditions and are looking for a cost-effective solution to improve cabin comfort and maintain engine temperature, the BMW E93 M3 Tunnel Heat Insulator could be a good investment. However, it's important to carefully consider the installation process and potential impact on airflow before making a purchase. If you're unsure about the installation process or have concerns about the potential impact on airflow, it may be a good idea to consult with a BMW mechanic or installer for guidance.

Details:

Set of two heat shields removed from a 2008 Bmw M3 convertible condition is used. The product is a black aluminum heat shield designed specifically for Bmw E93 oem M3 model's with v8 engine. See photos for part numbers.

specifications heatnshield:

• for models: E93, M3, E90, S65
• brand: Bmw
• mpn: 8040317
• color: Black
• material: Aluminum
• item length: 20 In
• vintage part: No
• placement on vehicle: Lower
• type: Heat Shield
• features: Heat Reflective
• finish: Matte
• country of origin: Germany
• item width: 14 In
• performance part: Yes

returns heatnshield:

• policy: no returns

general heatnshield:

• category: Auto Parts > Car Truck Accessories > Exhaust Emission Systems > Heat Shields, Wraps Sleeves

seller heatnshield:

• # reviews: 1171
• city: red lion, pennsylvania
• rating: 100.0%

offer heatnshield:

• availability: in stock
• in stock #: 5
• started: december 10, 2025
• sold #: 11
• prices: $80.35–$149.99
• item condition:
  • Used
  • New
• best offers: true
• options: ship-to-home

payments heatnshield:

• credit card: visa
• other
• wallet: apple-pay

shipping heatnshield:

• service: usps ground advantage
• type: fixed
• transit: 3-8 days
• carrier: usps
• class: standard

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