Call To Order: 1-800-541-9352

Get the Best Priced BMW 540i Expansion Tank

Select Your Vehicle:
  • Fast Shipping
  • 30-Day Return Policy
  • Low Prices

BMW 540i Replacement Expansion Tank Information

For vehicle owners with demands for excellence BMW automobiles offer prestigious looks and quality engineering. If performance driving and elegant design are important to you in a vehicle then BMW, a manufacturer renowned for agile handling, is worth checking out. Would it make sense to lay out a big payment for a nice, luxurious vehicle, if you plan to save pennies on new OEM or aftermarket parts and accessories? Comfort-focused cars including your finely crafted BMW 540i were intended to be used carefully and then always regularly repaired and serviced. To maintain the value and appearance you chose with your BMW 540i, it's important to use only the very best brand name OEM car parts. The BMW in your carport was made with quality and skill; it ought to have new components of the same high level of reliability. Support your vehicle's components by buying only the most reliable high-quality parts and accessories. Great engine power and automotive performance are bolstered by top-notch components and accessories. The BMW 540i Expansion Tank protects your radiator by providing a place for your engine coolant to expand as radiator temperature rises. Your vehicle's BMW 540i Expansion Tank allows the coolant and air of the cooling system to expand with the rising temperature and pressure. The BMW 540i Expansion Tank can crack because of weather or wear and tear; if this occurs a new one must be installed to keep the vehicle's cooling systems in optimum shape. Bank on us for the hard to find parts you need to repair your vehicle. Whether you drive a classic roadster or a hard working truck, we have the parts you are looking for right here. Utilize any time you desire the best quality car parts to be rewarded by our topnotch service and a competitive price every time you order.

BMW 540i Expansion Tank They are available for the following BMW 540i years: 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1995, 1994, 03, 02, 01, 00, 99, 98, 97, 95, 94. This part is also sometimes called BMW 540i Radiator Overflow Tank. We stock expansion tank parts for most BMW models including 325i, X5, 528i, 328i, X3, 530i, 323i, 740iL, 525i, 330Ci, 335i, 325Ci, 330i, Z4, 325xi, 535i, 750Li, 740i, 545i, 745Li, 330xi, Z3, 650i, M3, 550i, 323Ci, 645Ci, 750i, 745i, 325is, 750iL, 335i xDrive, 328Ci, 530xi, 328is, 535xi, 335xi, 535i xDrive, 318i and 323is.

We stock these Expansion Tank brands for the BMW 540i: Replacement, Behr, Dorman, Genuine, Action Crash, API, DIY Solutions and Brock.

Expansion Tank for BMW 540i - Partsgeek
› Change Vehicle
Review Fitment Notes to Ensure Proper Fit

Related Top Sellers

Research on Expansion Tank for BMW 540i

The BMW 540i is a high-class sedan and has high-quality parts and systems. That doesn't mean the expansion tank won't eventually develop a crack or break. If it does, then vital engine coolant will be lost and this can lead to major damage. Any time a car overheats it is a serious situation. Plastic expansion tanks do last, but also fail at the most unexpected of times. Fortunately, they don't cost much to replace and you can save even more by obtaining a brand new tank from an online supplier.

Signs You Need E39 Expansion Tank Replacement

The expansion tank is connected directly to the cooling system and radiator. Coolant that expands due to heating is stored in this plastic container. A cold engine doesn't put much pressure on the cooling system, and a heated engine requires more coolant; the tank is often pressurized as well. An expansion tank therefore has multiple functions. If it starts to fail, you may notice that coolant levels are consistently low and you have to keep adding more. A small crack can cause coolant to seep out or even evaporate so slowly it's hard to notice. Larger coolant leaks occur in older tanks or those that overheat. You'll see it as a steam, but a leak can drip or pool up on the ground. Engine overheating is a common result of, for example, damage to a 2001 BMW 530i coolant expansion tank. Overheating can seriously damage the engine, which can be very expensive to repair or replace.

How Does the Overflow Tank on a Radiator Work?

An expansion tank or radiator overflow tank is designed to hold coolant that has expanded with heat. The fluid is stored until it can be recycled back into the system. Once coolant loses heat, it contracts and can be returned to the coolant lines and engine. Coolant loss is prevented with the extra storage provided by the BMW E39 expansion tank, as it is with the radiator cap as well.

How Do I Drain My Coolant Tank?

Draining a coolant tank requires a lift or jack stands. The radiator cap must be removed and the coolant can be collected with a large drain pan. Some expansion tanks have a pressure cap, so remove this to drain it. Next, open the drain cock, and you can then drain the tank and the radiator.

Price of Replacing an Expansion Tank

To replace a BMW 540i tank, the price can vary, as it does with a 2003 BMW 530i coolant reservoir. You could spend anywhere from $40 to $120 on the part. Then there are the labor charges, taxes, and other possible fees. For the tank itself, you can save a great deal by going to, whether you need the tank or an E39 expansion tank hose as well. Our low prices are thanks to minimal operating costs, as everything is sold exclusively online, so you can find automotive parts and accessories that are affordable and correct any problems in your BMW.

Some of our Customer Reviews
Very Satisfied
Reviewer: BMW Dorman Expansion tank

Tank was promptly delivered, fit perfectly and has been holding the required pressure needed in my BMW 98 540iA.

1998 BMW 540i Expansion Tank

Very Satisfied
Reviewer: Don

This website was easily found easily navigated through found a great original part for my car very reasonably priced very easily ordered and lightning fast shipping! this was probably the best internet order I have ever placed and the most satisfying ! thank you

1997 BMW 540i Expansion Tank

Very Satisfied
Reviewer: james

The product was excactly like the display. And it is preforming very good. I will order all my parts at partsgeek.

2002 BMW 540i Expansion Tank

Very Satisfied
Reviewer: Excellent product.

Perfect fit. Very good quality and great delivery time!

1999 BMW 540i Expansion Tank

Very Satisfied
Reviewer: Brandon

Part was of quality the I expected and arrived very quickly. I highly recommend Parts Geek for all of your auto parts and accessory needs.

2001 BMW 540i Expansion Tank

Very Satisfied
Reviewer: jim

awesomely just like original. perfect fit. good. its whats supposed to be.

1995 BMW 540i Expansion Tank