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Mercedes ML320 Expansion Tank Reviews
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Shop Mercedes ML320 Replacement Expansion Tank

Would a smart driver spend a hefty price on a beautiful luxury car, only to cut corners on new aftermarket or OEM components? To keep the style and elegance you chose with your Mercedes ML320, it's key to use only the top names in high-performance auto parts. Elegant vehicles like the high-end Mercedes ML320 were built to be driven with consideration and then given needed maintenance. When consumers want the finest in lavishness, style and dependability they put their trust in Mercedes. If superior feel and elegant design are what you need in a car then Mercedes, an automaker known for exceptional performance, is definitely for you. Your Mercedes was built with the highest care and craftsmanship; it needs new parts of the same top level of quality. Mercedes ML320 Expansion Tanks provide space for the radiator's cooling fluid to expand as it heats up, preventing your cooling system from cracking or boiling over, or cooling fluid from overflowing from your cooling system. Your Mercedes ML320 Expansion Tank will let the air and antifreeze in a cooling system to increase with the heat and rising pressure. The car's Mercedes ML320 Expansion Tank is a pressure vessel that is designed to allow coolant and trapped air bubbles inside a car's coolant system to rise due to an increase in temperature and pressure. Your car or truck has a place in your heart because it has excellent performance and great style, so to have it purring along in top form you want the best in quality parts. First-rate horsepower and high performance come from first-rate components and accessories. The Mercedes ML320 is a beautiful vehicle ... keep it humming with our selection of quality parts. No other supplier will give you a better price on exceptional parts and accessories than we do all year long. If there are any concerns about our aftermarket accessories, our customer service people are available to you via e-mail or telephone - with the usual world-class commitment to the customer!

We stock these Expansion Tank brands for the Mercedes ML320: ReplacementBehrSKPAPA/URO PartsHellaFebiDormanAPIDIY SolutionsBrockMahle

Expansion Tanks available for the following Mercedes ML320 years: 2009, 2008, 2007, 2003, 2002, 2001, 2000, 1999, 1998, 09, 08, 07, 03, 02, 01, 00, 99, 98. This part is also sometimes called Mercedes ML320 Radiator Overflow Tank. We stock expansion tank parts for most Mercedes models including C230, SLK230, ML350, S500, ML500, ML430, S430, E350, GL450, C240, E320, S550, SL500, C280, E500, 560SL, 190E, SLK320, CLS550, 300E, CLK430, CLA250, 450SL, C320, R350, Sprinter 2500, CLK320, CLS500, 300D, CLK500, 300SDL, 300SD, 380SL, Sprinter 3500, CL500, S55 AMG, ML55 AMG, R500, C300 and 500SL.

Select your ML320 year

Review Fitment Notes
Showing 22 of 182 Results
Replacement Expansion Tank - for 1998 Mercedes ML320 - 123-006 Click to Enlarge
4.7 Stars
Replacement 123-006
Expansion Tank
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Part Number: 123-006
Brand: Replacement
Notes: Engine Coolant Reservoir -- ENGINE COOLANT RADIATOR OVERFLOW TANK, WITH CAP
Product Remark: Includes level sensor.
Condition: New
Shipping Options: Free Ground Shipping
$40.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: E
Vehicle
1998 Mercedes ML320
Replacement Expansion Tank - for 1999 Mercedes ML320 - 123-006 Click to Enlarge
4.7 Stars
Replacement 123-006
Expansion Tank
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Part Number: 123-006
Brand: Replacement
Notes: Engine Coolant Reservoir -- ENGINE COOLANT RADIATOR OVERFLOW TANK, WITH CAP
Product Remark: Includes level sensor.
Condition: New
Shipping Options: Free Ground Shipping
$40.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: E
Vehicle
1999 Mercedes ML320
Replacement Expansion Tank - for 2000 Mercedes ML320 - 123-006 Click to Enlarge
4.7 Stars
Replacement 123-006
Expansion Tank
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Part Number: 123-006
Brand: Replacement
Notes: Engine Coolant Reservoir -- ENGINE COOLANT RADIATOR OVERFLOW TANK, WITH CAP
Product Remark: Includes level sensor.
Condition: New
Shipping Options: Free Ground Shipping
$40.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: E
Vehicle
2000 Mercedes ML320
Replacement Expansion Tank - for 2001 Mercedes ML320 - 123-006 Click to Enlarge
4.7 Stars
Replacement 123-006
Expansion Tank
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Part Number: 123-006
Brand: Replacement
Notes: Engine Coolant Reservoir -- ENGINE COOLANT RADIATOR OVERFLOW TANK, WITH CAP
Product Remark: Includes level sensor.
Condition: New
Shipping Options: Free Ground Shipping
$40.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: E
Vehicle
2001 Mercedes ML320
Replacement Expansion Tank - for 2002 Mercedes ML320 - 123-006 Click to Enlarge
4.7 Stars
Replacement 123-006
Expansion Tank
Loading Reviews...
Part Number: 123-006
Brand: Replacement
Notes: Engine Coolant Reservoir -- ENGINE COOLANT RADIATOR OVERFLOW TANK, WITH CAP
Product Remark: Includes level sensor.
Condition: New
Shipping Options: Free Ground Shipping
$40.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: E
Vehicle
2002 Mercedes ML320
Behr Expansion Tank - for 2000 Mercedes ML320 - W0133-1718103 Click to Enlarge
5 Stars
Behr W0133-1718103
Expansion Tank
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Part Number: W0133-1718103
Brand: Behr
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$106.09
Our Price: $95.58
(28) In Stock
This Part Fits:
Catalog: A
Vehicle
2000 Mercedes ML320
Behr Expansion Tank - for 1999 Mercedes ML320 - W0133-1718103 Click to Enlarge
5 Stars
Behr W0133-1718103
Expansion Tank
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Part Number: W0133-1718103
Brand: Behr
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$106.09
Our Price: $95.58
(28) In Stock
This Part Fits:
Catalog: A
Vehicle
1999 Mercedes ML320
Behr Expansion Tank - for 2001 Mercedes ML320 - W0133-1718103 Click to Enlarge
5 Stars
Behr W0133-1718103
Expansion Tank
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Part Number: W0133-1718103
Brand: Behr
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$106.09
Our Price: $95.58
(28) In Stock
This Part Fits:
Catalog: A
Vehicle
2001 Mercedes ML320
Behr Expansion Tank - for 1998 Mercedes ML320 - W0133-1718103 Click to Enlarge
5 Stars
Behr W0133-1718103
Expansion Tank
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Part Number: W0133-1718103
Brand: Behr
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$106.09
Our Price: $95.58
(28) In Stock
This Part Fits:
Catalog: A
Vehicle
1998 Mercedes ML320
SKP Expansion Tank - for 2000 Mercedes ML320 3.2L V6 - 1635000349 Click to Enlarge
4.9 Stars
SKP 1635000349
Expansion Tank
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Part Number: 1635000349
Brand: SKP
Notes: Engine Coolant Reservoir -- W163
  • OE Style for easy replacement and fitment
Condition: New
Shipping Options: Free Ground Shipping
$37.98
with FREE Shipping
View Details
This Part Fits:
Catalog: S
Vehicle Engine
2000 Mercedes ML320 3.2L V6
Behr Expansion Tank - for 2002 Mercedes ML320 - W0133-1718103 Click to Enlarge
5 Stars
Behr W0133-1718103
Expansion Tank
Loading Reviews...
Part Number: W0133-1718103
Brand: Behr
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$106.09
Our Price: $95.58
(28) In Stock
This Part Fits:
Catalog: A
Vehicle
2002 Mercedes ML320
APA/URO Parts Expansion Tank - for 2000 Mercedes ML320 - 1635000349 Click to Enlarge
5 Stars
APA/URO Parts 1635000349
Expansion Tank
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Part Number: 1635000349
Brand: APA/URO Parts
Notes: Engine Coolant Reservoir -- Cooling level sensor included; Cap not included
  • Guaranteed fitment
  • Precision-molded to OE dimensions to ensure compatibility with original sensors and connections
  • Quality materials resist engine heat and harsh cooling system environment
  • Factory pressure-tested
Condition: New
Shipping Options: Ground
$32.43
(45) In Stock
This Part Fits:
Catalog: B
Vehicle
2000 Mercedes ML320
Hella Expansion Tank - for 1999 Mercedes ML320 - 376755201 Click to Enlarge
4.8 Stars
Hella 376755201
Expansion Tank
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Part Number: 376755201
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.
Condition: New
Shipping Options: Ground
$41.43
(2) In Stock
This Part Fits:
Catalog: B
Vehicle
1999 Mercedes ML320
SKP Expansion Tank - for 1999 Mercedes ML320 3.2L V6 - 1635000349 Click to Enlarge
4.9 Stars
SKP 1635000349
Expansion Tank
Loading Reviews...
Part Number: 1635000349
Brand: SKP
Notes: Engine Coolant Reservoir -- W163
  • OE Style for easy replacement and fitment
Condition: New
Shipping Options: Free Ground Shipping
$37.98
with FREE Shipping
View Details
This Part Fits:
Catalog: S
Vehicle Engine
1999 Mercedes ML320 3.2L V6
APA/URO Parts Expansion Tank - for 1998 Mercedes ML320 - 1635000349 Click to Enlarge
5 Stars
APA/URO Parts 1635000349
Expansion Tank
Loading Reviews...
Part Number: 1635000349
Brand: APA/URO Parts
Notes: Engine Coolant Reservoir -- Cooling level sensor included; Cap not included
  • Guaranteed fitment
  • Precision-molded to OE dimensions to ensure compatibility with original sensors and connections
  • Quality materials resist engine heat and harsh cooling system environment
  • Factory pressure-tested
Condition: New
Shipping Options: Ground
$32.43
(45) In Stock
This Part Fits:
Catalog: B
Vehicle
1998 Mercedes ML320
Febi Expansion Tank - for 2003 Mercedes ML320 - 163 500 03 49 Click to Enlarge
5 Stars
Febi 163 500 03 49
Expansion Tank
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Part Number: 163 500 03 49
Brand: Febi
Notes: Coolant Expansion Tank -- Includes level sensor.
Condition: New
Shipping Options: Ground
$42.73
View Details
This Part Fits:
Catalog: G
Vehicle
2003 Mercedes ML320
Front Dorman Expansion Tank - for 2003 Mercedes ML320 3.2L V6 - 603-258 Click to Enlarge
Website Reviews
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Part Number: 603-258
Brand: Dorman
Notes: Engine Coolant Reservoir
  • Direct replacement - this engine coolant reservoir matches the fit and function of the original part
  • Ideal solution - engineered for a seamless installation
  • Durable construction - manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design - backed by 100 years of automotive aftermarket experience
Position: Front
Condition: New
Package Contents: 1 Coolant Reservoir; 1 Cap
Color: Clear
Shipping Options: Ground
$43.98
(2) In Stock
This Part Fits:
Catalog: C
Vehicle Engine
2003 Mercedes ML320 3.2L V6
SKP Expansion Tank - for 2003 Mercedes ML320 3.2L V6 - SK603258 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: SK603258
Brand: SKP
Notes: Engine Coolant Reservoir -- W163
  • OE Style for easy replacement and fitment
Condition: New
Shipping Options: Ground
$27.98
(14) In Stock
This Part Fits:
Catalog: T
Vehicle Engine
2003 Mercedes ML320 3.2L V6
API Expansion Tank - for 2003 Mercedes ML320 3.2L V6 - 1608-277219 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 18833-07538447
Brand: API
Notes: Engine Coolant Reservoir
Condition: New
Shipping Options: Ground
$38.98
(2) In Stock
This Part Fits:
Catalog: P
Vehicle Engine
2003 Mercedes ML320 3.2L V6
DIY Solutions Expansion Tank - for 2003 Mercedes ML320 - HVA02650 Click to Enlarge
Website Reviews
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Part Number: HVA02650
Brand: DIY Solutions
Notes: Engine Coolant Reservoir
Condition: New
Shipping Options: Free Ground Shipping
$44.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: Q
Vehicle
2003 Mercedes ML320
Brock Expansion Tank - for 2009 Mercedes ML320 - 8667-0039 Click to Enlarge
Website Reviews
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Part Number: 8667-0039
Brand: Brock
Notes: Engine Coolant Reservoir -- 92-16 Mercedes-Benz Various Models Coolant Recovery Tank Cap 04-08 Chrysler Crossfire
Condition: New
Shipping Options: Free Ground Shipping
$13.98
with FREE Shipping
(2) In Stock
This Part Fits:
Catalog: K
Vehicle
2009 Mercedes ML320
Mahle Expansion Tank - for 2009 Mercedes ML320 - CRT 57 000S Click to Enlarge
Website Reviews
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Part Number: CRT 57 000S
Brand: Mahle
Notes: Engine Coolant Reservoir
Condition: New
Shipping Options: Ground
$57.98
(2) In Stock
This Part Fits:
Catalog: N
Vehicle
2009 Mercedes ML320

Related Cooling System Parts

Research on Expansion Tank for Mercedes ML320

Mercedes ML320 Expansion Tank

Luxury vehicles, like your Mercedes ML320, require premium parts in order to work at optimal performance. One of these parts is the expansion tank, which keeps your coolant fluid from overflowing when it expands with the heat it absorbs from the engine. Without this tank, your radiator would be in danger of rupturing every time your engine warmed up. A high-quality replacement expansion tank can keep your cooling system running at peak performance.

Shop at PartsGeek.com and get the best aftermarket and OEM parts at competitive prices. We sell parts like the Mercedes ML320 expansion tank from the trusted brands of Behr, Hella, Meyle, Febi and APA/URO Parts. All of our millions of parts are covered by our standard 30-day return policy.

What is an expansion tank?

Your Mercedes ML320 expansion tank is a vital component in your car's cooling system. The coolant in your cooling system absorbs heat from your engine and, as it does so, the coolant expands in volume. This expanded volume into the expansion tank, which allows the pressure inside the radiator to remain at a fixed level while also allowing any air bubbles trapped in the coolant to rise to the surface and escape.

How much is a new Mercedes ML320 expansion tank?

There are several factors that can affect the price of a new Mercedes ML320 expansion tank such as,

  • The model year of your ML320
  • The number of parts in the kit
  • The brand.

Taking these into consideration, you should expect to pay between $34 and $62 for a new Mercedes ML320 expansion tank at PartsGeek.com.

How do I know if I need a new expansion tank?

Your Mercedes ML320 expansion tank operates under considerable stress and can wear out and need replacing. Signs that you need to replace your expansion tank can include,

  • You're always low on coolant
  • Your expansion tank is leaking coolant
  • Your engine overheats.

Mercedes ML320 Expansion Tank Reviews
5 of 5
Verified Customer
7/11/13 07:41 AM - USA

Have not had the part installed yet, but very satisfied with the ease of both your ordering & receiving process. - A. Harper

- 2001 Mercedes ML320 Expansion Tank
5 of 5
Verified Customer
8/2/13 09:25 AM - USA

I had a choice of an original 99 tank out of a wrecked Benz or an aftermarket from PartsGeek. I chose PartsGeek.

I could see a picture of what I was buying, so I was comfortable, and the exact part showed up exactly when it was supposed to. PartsGeek is now Bookmarked in my computer. - Jeff McTague

- 1999 Mercedes ML320 Expansion Tank
5 of 5
Verified Customer
10/30/13 04:52 PM - USA

I am very pleased with my product. I received it in a timely manner. I look forward to ordering in the future. - Melvin Jenkins

- 1998 Mercedes ML320 Expansion Tank
5 of 5
Verified Customer
12/9/13 02:23 PM - USA

I am very satisfied with the purchase, and it's a good quality product, the shipping was pretty fast, buying online was very fast and safe and very acceptable delivery charges. I highly recommend this vendor and will be my first choice to buy elsewhere. - Agustin Betancourt

- 2000 Mercedes ML320 Expansion Tank
5 of 5
Verified Customer
7/30/15 07:09 PM - USA

Been meaning to finish the refurbishing of the cooling system; matter became more pressing with a leak in the overflow expansion tank. Prompt handing and shipping and the exact product ordered - well packaged - made short order of this repair!!! - Great product and prompt h/s

- 1998 Mercedes ML320 Expansion Tank
5 of 5
Verified Customer
1/28/16 10:44 AM - USA

This was an easy process. The part fit perfectly. As opposed to having this replaced in a shop, I saved at least $200. - Easy and Econoical

- 2000 Mercedes ML320 Expansion Tank