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Shop BMW 325i Replacement Expansion Tank

The elegant design and reliable performance of the BMW make your daily drives more enjoyable. When it comes to style and enduring design car buyers seek out the innovation that is featured in every BMW vehicle. Is it smart to lay out a large sum for a great luxury vehicle, only to skimp on new OEM or aftermarket parts and components? To preserve the comfort and style you chose with your BMW 325i, it's critical to use only the very best new OEM car parts. Luxurious cars like your well-appointed BMW 325i were intended to be used carefully and then serviced and maintained. The BMW in your carport was built using care and expertise; it ought to have new replacement components of a similar high level of quality. Your car has a place in your heart because of its excellent performance and great style, and to have it humming in its best shape you'll need the acme in top-notch parts and accessories. You bought a performance-optimized car to take advantage of its awesome power and performance, support that investment by installing high quality replacement parts. The BMW 325i Expansion Tank can fail because of harsh weather or simple wear; when this occurs a new one should be installed to maintain the car's cooling systems in top condition. Your BMW 325i Expansion Tank permits the gas in the radiator to swell because of the higher temperature and rising pressure. BMW 325i Expansion Tanks provide room for the cooling fluid to expand as it heats up, saving your radiator from bursting or boiling over, or cooling fluid from overflowing from your cooling system. Since you would not consider something other than a BMW when you selected your car or truck, why settle for anything other than the best parts and service? Whether you own a smokin' hot rod or everyday Detroit metal, we have all the parts and accessories you are searching for right here. No matter whether you drive a classic roadster or a sport utility vehicle, we have all the parts and accessories you want right on site at PartsGeek.com.

We stock these Expansion Tank brands for the BMW 325i: ReplacementBehrOriginal EquipmentMetrixHellaAPA/URO PartsAction CrashContiTechStandard Motor ProductsAPIDIY SolutionsBrockSKPMahle

Expansion Tank for BMW 325i - Partsgeek

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Review Fitment Notes
Showing 24 of 304 Results
Replacement Expansion Tank - for 2006 BMW 325i 3.0L 6 Cyl - 123-069 Click to Enlarge
Replacement Expansion Tank - for 2006 BMW 325i 3.0L 6 Cyl - 123-069 Click to Enlarge
4.5 Stars
Replacement 123-069
Expansion Tank
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Part Number: 123-069
Brand: Replacement
Notes: Engine Coolant Reservoir -- ENGINE COOLANT RADIATOR OVERFLOW TANK BOTTLE, WITH CAP
Condition: New
Shipping Options: Free Ground Shipping
$49.95
with FREE Shipping
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This Part Fits:
Catalog: E
Vehicle Engine
2006 BMW 325i 3.0L 6 Cyl
Behr Expansion Tank - for 2003 BMW 325i - W0133-1797677 Click to Enlarge
4.9 Stars
Behr W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Behr
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $38.58
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2003 BMW 325i
Behr Expansion Tank - for 2002 BMW 325i - W0133-1797677 Click to Enlarge
4.9 Stars
Behr W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Behr
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $38.58
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2002 BMW 325i
Behr Expansion Tank - for 2004 BMW 325i - W0133-1797677 Click to Enlarge
4.9 Stars
Behr W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Behr
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $38.58
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2004 BMW 325i
Behr Expansion Tank - for 2001 BMW 325i - W0133-1797677 Click to Enlarge
4.9 Stars
Behr W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Behr
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $38.58
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2001 BMW 325i
Behr Expansion Tank - for 2005 BMW 325i - W0133-1797677 Click to Enlarge
4.9 Stars
Behr W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Behr
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $38.58
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2005 BMW 325i
Original Equipment Expansion Tank - for 2001 BMW 325i - W0133-1797677 Click to Enlarge
4.8 Stars
Original Equipment W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Original Equipment
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $65.58
View Details
This Part Fits:
Catalog: A
Vehicle
2001 BMW 325i
Original Equipment Expansion Tank - for 2003 BMW 325i - W0133-1797677 Click to Enlarge
4.8 Stars
Original Equipment W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Original Equipment
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $65.58
View Details
This Part Fits:
Catalog: A
Vehicle
2003 BMW 325i
Original Equipment Expansion Tank - for 2002 BMW 325i - W0133-1797677 Click to Enlarge
4.8 Stars
Original Equipment W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Original Equipment
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $65.58
View Details
This Part Fits:
Catalog: A
Vehicle
2002 BMW 325i
Original Equipment Expansion Tank - for 2004 BMW 325i - W0133-1797677 Click to Enlarge
4.8 Stars
Original Equipment W0133-1797677
Expansion Tank
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Part Number: W0133-1797677
Brand: Original Equipment
Product Remark: w/o Cap or Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$127.33
Our Price: $65.58
View Details
This Part Fits:
Catalog: A
Vehicle
2004 BMW 325i
Metrix Expansion Tank - for 1994 BMW 325i - W0133-1614860 Click to Enlarge
4.9 Stars
Metrix W0133-1614860
Expansion Tank
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Part Number: W0133-1614860
Brand: Metrix
Product Remark: w/o Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$101.47
Our Price: $29.58
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
1994 BMW 325i
Hella Expansion Tank - for 2003 BMW 325i M56 FI - 376755111 Click to Enlarge
5 Stars
Hella 376755111
Expansion Tank
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Part Number: 376755111
Brand: Hella
Notes: New Perfect fit Engine Coolant Reservoir -- OE SUPPLIER - Behr Hella Service is the thermal management expert- from air conditioning to engine cooling.; 362xx128
Condition: New
Shipping Options: Ground
$40.43
View Details
This Part Fits:
Catalog: B
Vehicle Engine
2003 BMW 325i M56 FI
APA/URO Parts Expansion Tank - for 1994 BMW 325i - W0133-1614860 Click to Enlarge
Website Reviews
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Part Number: W0133-1614860
Brand: APA/URO Parts
Product Remark: w/o Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$101.47
Our Price: $19.58
View Details
This Part Fits:
Catalog: A
Vehicle
1994 BMW 325i
Hella Expansion Tank - for 2004 BMW 325i M56 FI - 376755111 Click to Enlarge
5 Stars
Hella 376755111
Expansion Tank
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Part Number: 376755111
Brand: Hella
Notes: New Perfect fit Engine Coolant Reservoir -- OE SUPPLIER - Behr Hella Service is the thermal management expert- from air conditioning to engine cooling.; 362xx128
Condition: New
Shipping Options: Ground
$40.43
View Details
This Part Fits:
Catalog: B
Vehicle Engine
2004 BMW 325i M56 FI
Metrix Expansion Tank - for 1995 BMW 325i - W0133-1614860 Click to Enlarge
4.9 Stars
Metrix W0133-1614860
Expansion Tank
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Part Number: W0133-1614860
Brand: Metrix
Product Remark: w/o Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$101.47
Our Price: $29.58
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
1995 BMW 325i
Action Crash Expansion Tank - for 2006 BMW 325i - BM3014102 Click to Enlarge
5 Stars
Action Crash BM3014102
Expansion Tank
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Part Number: BM3014102
Brand: Action Crash
Notes: COOLANT RECOVERY TANK FOR MODELS WITH 6-CYLINDER ENGINE
Quality: Premium - High quality new replacement part.
Condition: New
Shipping Options: Ground
List Price:
$127.33
Our Price: $51.98
(51) In Stock
This Part Fits:
Catalog: D
Vehicle Body Type Notes
2006 BMW 325i Convertible COOLANT RECOVERY TANK FOR MODELS WITH 6-CYLINDER ENGINE
Behr Expansion Tank - for 2006 BMW 325i - 17 13 7 640 514 Click to Enlarge
5 Stars
Behr 17 13 7 640 514
Expansion Tank
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Part Number: 17 13 7 640 514
Brand: Behr
Notes: Coolant Expansion Tank with Level Sensor -- Also use- (Qty.) (1) 17 11 7 639 020 cap.
Condition: New
Shipping Options: Ground
$62.73
(26) In Stock
This Part Fits:
Catalog: G
Vehicle
2006 BMW 325i
ContiTech Expansion Tank - for 2005 BMW 325i 2.5L 6 Cyl - EPT0018 Click to Enlarge
Website Reviews
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Part Number: EPT0018
Brand: ContiTech
Notes: Engine Coolant Reservoir
  • Produced from virgin plastic meeting/exceeding OE specifications and ensuring long life
  • Resistant to cracking and wear from heat cycles preventing coolant loss
  • Direct fitment allows easy installation
  • Manufactured to strict engineering standards/specifications in materials and tolerances
Condition: New
Shipping Options: Ground
$47.08
(2) In Stock
This Part Fits:
Catalog: H
Vehicle Engine
2005 BMW 325i 2.5L 6 Cyl
Standard Motor Products Expansion Tank - for 2006 BMW 325i - S49002 Click to Enlarge
4.7 Stars
Standard Motor Products S49002
Expansion Tank
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Part Number: S49002
Brand: Standard Motor Products
Notes: Engine Coolant Reservoir -- Includes Thermostat and Housing
Condition: New
Shipping Options: Ground
$122.98
(4) In Stock
This Part Fits:
Catalog: T
Vehicle
2006 BMW 325i
API Expansion Tank - for 2005 BMW 325i 2.5L 6 Cyl - 1608-259949 Click to Enlarge
Website Reviews
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Part Number: 18489-07444726
Brand: API
Notes: Engine Coolant Reservoir
Condition: New
Shipping Options: Ground
$39.98
(34) In Stock
This Part Fits:
Catalog: P
Vehicle Engine
2005 BMW 325i 2.5L 6 Cyl
DIY Solutions Expansion Tank - for 2006 BMW 325i 3.0L 6 Cyl - HVA02844 Click to Enlarge
Website Reviews
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Part Number: HVA02844
Brand: DIY Solutions
Notes: Engine Coolant Reservoir -- L6 3.0L
  • Direct Fit Replacement
  • Quality Tested - built to a strict level of product standards.
Condition: New
Shipping Options: Free Ground Shipping
$58.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: Q
Vehicle Engine
2006 BMW 325i 3.0L 6 Cyl
Brock Expansion Tank - for 2006 BMW 325i - 8667-0004 Click to Enlarge
Website Reviews
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Part Number: 8667-0004
Brand: Brock
Notes: Engine Coolant Reservoir -- 99-06 BMW 3 Series E46 Coolant Recovery Tank Without Sensor-Cap 01-06 BMW X5 E53 3.0L 04-10 BMW X3 E83
Condition: New
Shipping Options: Free Ground Shipping
$42.98
with FREE Shipping
(99) In Stock
This Part Fits:
Catalog: K
Vehicle Notes
2006 BMW 325i On E46 type platform ONLY
Front SKP Expansion Tank - for 1987 BMW 325i 2.5L 6 Cyl - 17111707540 Click to Enlarge
Website Reviews
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Part Number: 17111707540
Brand: SKP
Notes: Engine Coolant Reservoir
  • OE Style for easy replacement and fitment
Position: Front
Condition: New
Shipping Options: Free Ground Shipping
$42.98
with FREE Shipping
View Details
This Part Fits:
Catalog: S
Vehicle Engine
1987 BMW 325i 2.5L 6 Cyl
Mahle Expansion Tank - for 2006 BMW 325i - CRT 207 000S Click to Enlarge
Website Reviews
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Part Number: CRT 207 000S
Brand: Mahle
Notes: Engine Coolant Reservoir -- 221x266x160
Condition: New
Shipping Options: Ground
$56.98
(4) In Stock
This Part Fits:
Catalog: N
Vehicle
2006 BMW 325i

Related Cooling System Parts

Research on Expansion Tank for BMW 325i

You worked hard to get where you are today. You slugged through college and worked late to be able to provide yourself with a certain lifestyle. And if you are like most people, there is nothing that represents that lifestyle more fully than what you drive. The BMW makes a statement. It is part of your identity and most owners take care of it like it is part of the family.

Expansion Tank 101

Without a properly functioning expansion tank, your BMW can overheat. The expansion tank is a vital component to your heating and cooling system. This system is first filled with cool water from your supply line. Then the pressure of the expansion tank is equal to the supply line pressure, keeping the diaphragm pressing up tightly against the tank. As the temperature of the water in the system rises and your BMW 523i expansion tank expands, it pushes against the air cushion to absorb added pressure. As the system pressure is becomes greater, excess coolant is forced out the radiator and into the expansion tank.

Basically the tank's ability to compress absorbs excess pressure that occurs as a result of thermal expansion. It keeps the rest of your system from being damaged due to excessive pressure.

Is My BMW 325i Expansion Tank Malfunctioning?

Problems with your BMW 325i expansion tank can result from either a leakage or blockage, or could indicate a bigger problem leads to a complete malfunction. To determine whether your BMW 325i expansion tank is malfunctioning, be on the lookout for a few potential problems. If you are the DIY type, be sure you have the necessary knowledge and tools before starting the project. A pipe wrench, old towels and the type of waterproof tape that plumbers use are on the short list. Follow all directions carefully.

The first clue that you need a BMW 325i expansion tank replacement is simply excess water. As the heated water expands, as explained above, its physical volume increases and that creates pressure. If this extra water is blocked or damaged, the water has nowhere to go and you have a leak.

A Potentially Explosive Situation

If gauges or valves are damaged, the water in-flow and out-flow is disrupted and excess water build up can occur. This creates a somewhat dangerous situation because the tank could explode. Take care with your BMW 325i expansion tank removal. It can be done but care must be taken to avoid accidents.

Sometimes there is excess water condensation. This is often because the tank is holding too much water. Condensation problems also occur in high humidity. That is why you see so many cars overheating in the summer. But keep your cool. There is a solution. A new expansion tank will cost you roughly between $51.95 to $125.95.

Partsgeek.com to the Rescue

Partsgeek.com has a wide variety of tank sizes to fit very system. Whether you are looking for a 2002 BMW 325i expansion tank replacement or other model year, find the exact size and model tank you are looking at rock bottom prices at partsgeek.com.

Expansion Tanks available for the following BMW 325i years: 2006, 2005, 2004, 2003, 2002, 2001, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987, 06, 05, 04, 03, 02, 01, 95, 94, 93, 92, 91, 90, 89, 88, 87. This part is also sometimes called BMW 325i Radiator Overflow Tank. We stock expansion tank parts for most BMW models including X5, 528i, 328i, X3, 530i, 323i, 740iL, 540i, 525i, 335i, 330Ci, 330i, 325Ci, Z4, 325xi, 535i, 750Li, 740i, 545i, 745Li, Z3, M3, 330xi, 650i, 550i, 323Ci, 325is, 645Ci, 750i, 745i, 335i xDrive, 750iL, 328is, 530xi, 328Ci, 535xi, 528i xDrive, 535i xDrive, 335xi and 135i.

BMW 325i Expansion Tank Reviews
5 of 5
Verified Customer
4/18/13 01:16 AM - USA

Got the product for half the retail price and very quickly!! Car is working perfectly now!! - Abel

- 2002 BMW 325i Expansion Tank
5 of 5
Verified Customer
4/26/13 09:45 PM - USA

pretty good give better discount - Jerry Price

- 2002 BMW 325i Expansion Tank
5 of 5
Verified Customer
5/24/13 02:21 PM - USA

Very fast service and prices! - Dwayne

- 2005 BMW 325i Expansion Tank
5 of 5
Verified Customer
7/1/13 07:56 AM - USA

I received my part in a timely matter. - Galen

- 1995 BMW 325i Expansion Tank
5 of 5
Verified Customer
7/24/13 03:25 PM - USA

excellent prices... fast searches on line... - lynford

- 1995 BMW 325i Expansion Tank
5 of 5
Verified Customer
8/14/13 01:41 PM - USA

exact fit... - expansion tank

- 1995 BMW 325i Expansion Tank