BMW 740LI Expansion Tank Parts

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BMW 740LI
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Belts and Cooling
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Expansion Tank/Coolant Reservoir
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BMW 535i, 535i xDrive, 740i, 535d, 740Li, 535d xDrive, 640i Gran Coupe, 535i GT, 535i GT xDrive, 740Li xDrive & more
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$154.99
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$161.45
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$171.97
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BMW 535i, 535i xDrive, 740i, 535d, 740Li, 535d xDrive, 640i Gran Coupe, 535i GT, 535i GT xDrive, 740Li xDrive & more
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$88.99
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$92.70
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$168.63

BMW 740LI expansion tank typically cost between $88.99 and $154.99.

The BMW 740LI expansion tank is a component of the vehicle's cooling system. It is responsible for storing excess coolant as it expands under high temperature conditions and also acts as a reservoir for the coolant. The expansion tank is typically located near the radiator at the front of the engine compartment. Its position may vary slightly depending on the specific model and year of the BMW 740LI, but it is generally easily accessible for inspection and maintenance purposes.

The typical lifespan of a BMW 740LI expansion tank can vary depending on various factors such as driving conditions, maintenance practices, and overall vehicle health. However, under normal circumstances, the expansion tank can last anywhere from 50,000 to 100,000 miles before it may start experiencing issues like cracks or leaks. It is always recommended to regularly inspect and maintain your vehicle's cooling system to ensure optimal performance and longevity.

Signs of a Faulty BMW 740LI Expansion Tank

  1. Coolant Leaks: One of the most obvious signs of a faulty expansion tank is coolant leakage. If you notice any puddles or pools of coolant underneath your BMW 740LI, it could be a sign that the expansion tank is cracked or damaged.
  2. Overheating Engine: A faulty expansion tank may lead to insufficient coolant levels, resulting in engine overheating. If you consistently observe your engine temperature rising above normal levels, it could indicate a problem with the expansion tank.
  3. Low Coolant Levels: If you frequently find yourself having to top up the coolant in your BMW 740LI, it may be due to a faulty expansion tank. A properly functioning expansion tank should maintain the coolant levels at a consistent and appropriate level.
  4. Swelling or Bulging Expansion Tank: Inspect the expansion tank regularly for any signs of swelling or bulging. This can occur due to excessive pressure within the tank, which often indicates a faulty pressure cap or a malfunctioning expansion tank itself.
  5. Discolored Coolant: When the expansion tank fails, it can allow contaminants to mix with the coolant, causing it to change color. If you notice that the coolant has become murky or discolored, it could be an indication of a faulty expansion tank.
  6. Hissing Sounds: Faulty expansion tanks might result in air leaks and produce hissing sounds. If you hear any unusual noises coming from the engine bay, especially when the coolant system is pressurized, it's worth checking the expansion tank for potential issues.
  7. Visible Cracks or Damage: Carefully inspect the expansion tank for any visible cracks, damage, or signs of wear. Over time, the plastic material of the tank can degrade, leading to cracks or leaks.

If you suspect any problems with your BMW 740LI's expansion tank, it is advisable to have it inspected and repaired by a qualified mechanic or BMW dealership. Ignoring a faulty expansion tank can lead to more severe engine damage or overheating issues.

Top BMW 740LI Expansion Tank Manufacturers

Genuine BMW Expansion Tank:
As the name suggests, Genuine BMW expansion tanks are manufactured directly by BMW or by auto parts manufacturers chosen by BMW. These expansion tanks are built to meet the strict quality standards set by BMW, ensuring that they provide optimal performance and fit seamlessly into your BMW 740LI. Genuine BMW expansion tanks are known for their exceptional quality and reliability, making them a preferred choice for many BMW owners. However, being branded under the vehicle manufacturer's name, Genuine BMW expansion tanks tend to be on the higher end of the price spectrum.

Febi Expansion Tank:
Febi is a reputable aftermarket brand that offers a wide range of automotive parts including expansion tanks. Although not directly manufactured by BMW, Febi expansion tanks are designed to meet or exceed OEM (Original Equipment Manufacturer) specifications. Febi prides itself on delivering high-quality parts that are built to last and perform reliably. Febi expansion tanks are a more cost-effective alternative to Genuine BMW tanks, providing excellent value for money without compromising on quality. By choosing a Febi expansion tank, BMW 740LI owners can ensure a proper fit and reliable performance at a more affordable price point.

Shop Deals On BMW 740LI Expansion Tanks

At AutohausAZ, customers can easily browse and find the BMW 740LI expansion tank they need without any hassle. The streamlined website layout ensures a seamless shopping experience, allowing shoppers to quickly locate the desired product. With a wide selection of high-quality expansion tanks, AutohausAZ ensures that customers can find the perfect fit for their BMW 740LI.

One advantage of shopping at AutohausAZ is the extensive product information available for each expansion tank. Detailed descriptions and specifications provide customers with all the necessary details about the product, enabling an informed purchasing decision. This way, customers can have confidence in knowing that they are selecting the right expansion tank for their BMW 740LI.

AutohausAZ also offers competitive pricing on their expansion tanks. By providing affordable options, customers can save money while still receiving a top-notch product. This affordability extends to the variety of expansion tanks available, catering to different budget ranges. Such flexibility allows customers to choose based on their specific needs and preferences, ensuring a tailored shopping experience.

Additionally, AutohausAZ values customer satisfaction and has established a reputation for exceptional service. Their knowledgeable and friendly customer support team is readily available to assist customers with any queries or concerns. From providing guidance on product selection to addressing post-purchase inquiries, the dedicated team ensures that customers feel supported throughout their shopping journey.

Moreover, AutohausAZ maintains a reliable shipping and delivery system. Customers can expect prompt and efficient processing of their orders, ensuring a timely arrival of the purchased BMW 740LI expansion tank. This attention to detail and commitment to customer convenience demonstrates AutohausAZ's dedication to providing a seamless shopping experience.

In conclusion, AutohausAZ offers numerous advantages when it comes to shopping for a BMW 740LI expansion tank. From a user-friendly website to extensive product information, competitive pricing, exceptional customer service, and reliable shipping, AutohausAZ prioritizes customer satisfaction at every step.

Auto Parts We Offer for BMW 740LI