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BMW 330Ci Replacement Expansion Tank Information

Comparable vehicles can't beat the unique styling of the uniquely sophisticated BMW, and they aren't as well crafted. For a unique look with hordes of power car enthusiasts trust BMW for their compact car wishes. For knowledgeable buyers, BMW stands for dependability, upscale design and effortless maneuverability. If a problem develops or a component needs to be replaced, that's not the time to save with a low-quality component. A BMW 330Ci deserves the right car parts to function at peak efficiency. For countless years the rock-solid design of BMW car has been the poster child of power and workmanship. Protect your BMW's critical components by only installing the finest in quality parts. BMW 330Ci Expansion Tanks provide room for the engine's cooling fluid to expand as it is heated, preventing your cooling system from cracking or boiling over, or coolant from overflowing from the car's cooling system. Your vehicle's BMW 330Ci Expansion Tank permits the air and antifreeze in a cooling system to expand because of the higher temperature and pressure. You should test antifreeze levels in the car's BMW 330Ci Expansion Tank often since large drops in the coolant level could indicate that there is a leak in your car's cooling system. Your BMW 330Ci ought to be preserved in peak shape and maintained at need; that involves selecting the best new or OEM auto parts.

BMW 330Ci Expansion Tank They are available for the following BMW 330Ci years: 2006, 2005, 2004, 2003, 2002, 2001, 06, 05, 04, 03, 02, 01. This part is also sometimes called BMW 330Ci Radiator Overflow Tank. We stock expansion tank parts for most BMW models including 325i, X5, 528i, 328i, X3, 530i, 323i, 740iL, 540i, 525i, 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 330Ci: Behr, Original Equipment, Action Crash, Hella, Standard Motor Products, APA/URO Parts, ContiTech, API, DIY Solutions and Brock.

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BMW 330Ci Expansion Tank

You chose your 330Ci for unmatched luxury and consistent performance in high-stress situations. Maintain the initial value of your 3-series by performing regular checks of the coolant system. This system is responsible for maintaining the optimum conditions for your precision-designed motor. Your BMW 330Ci expansion tank plays an integral part in keeping your engine operating safely, so replace it if you notice leaks or other damage.

We have millions of parts and accessories at, and they're all available at discounts of up to 80% off. Get all of your BMW coolant system components here, from hoses to radiator supports. Everything's covered by a 30-day return policy, so order today.

What is a BMW 330Ci expansion tank?

As your engine heats up and the contents of the radiator expand, pressure is exerted against the inner walls of the system. Sometimes, this pressure causes radiator fluid to expand to the point where it needs somewhere to go. In the old days, this might cause the radiator cap to blow off. Modern vehicles like your 330Ci have an overflow tank to prevent loss of coolant and damage to the sensitive sensors and electronics located in your engine compartment.

How much is a new BMW 330Ci expansion tank?

These parts are relatively simple, and tend to cost somewhere between $35-120. The price depends on the model year of your 3-series and the company that manufactures the part. Make sure to inspect all of your hoses when you replace your expansion tank: you save money doing all the coolant system work you need at once.

What are the signs of a failed BMW 330Ci expansion tank?

The most noticeable sign of a bad BMW 330Ci expansion tank is visible leaks. It's also important to keep an eye out for:

  • Quickly dropping coolant levels
  • Engine temperature lights
  • Low coolant levels
  • Wet spots around or beneath the tank

If you see any of these, you might have a leak somewhere in your coolant system. Do a thorough inspection and replace any parts that are worn or aged.

Some of our Customer Reviews
Very Satisfied

Fit perfectly, mental note don't overfill the tank that's what makes them crack.

2001 BMW 330Ci Expansion Tank

Very Satisfied
Reviewer: Satisfied

So far so good,product seem to be reputable to the makers.

2002 BMW 330Ci Expansion Tank

Very Satisfied
Reviewer: roadster

A perfect part like original part, but the foot note was the most important information explaining why buy the kit.

2004 BMW 330Ci Expansion Tank

Very Satisfied
Reviewer: Robles

Fast ship. Great quality. Great price. Why would you go to the dealer??

2001 BMW 330Ci Expansion Tank

Very Satisfied
Reviewer: Mike

I recieved the part quickly and it fit prefectly. OEM part at half the prices as the dealership. This site is the location to get your BMW parts from.

2006 BMW 330Ci Expansion Tank

Very Satisfied
Reviewer: Juan Valero

This was what I was looking for very easy to find and the price was grate they have OE and OE replacement parts.

2004 BMW 330Ci Expansion Tank