BMW Coolant Expansion Tanks

Expansion Tank Replacement Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15744017

Part#: N524ECSTNKKT-KT

In Stock

Sale - Save 21% $ 127.99

This product was last offered at the strikethrough price on
10-20-2026

$ 100.95 USD

Add to Wish List

Qty

Sale - Save 21%

$ 127.99

This product was last offered at the strikethrough price on
10-20-2026

$ 100.95 USD

Add to Wish List

The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it. The kit includes: Expansion tank with level sensor URO expansion tank cap Genuine BMW expansion tank grommet Genuine BMW mounting bolts

Show More Show Less

OEM Coolant Expansion Tanks Kit - F22/23 F3X B48 B58

10X Entries Into Our F80 M3 Sweepstakes

T#:27605427

Part#: 17138677649TKT

Ships in 1 Business Day

Sale - Save 3% $ 208.99

This product was last offered at the strikethrough price on
05-03-2026

$ 202.62 USD

Add to Wish List

Qty

Sale - Save 3%

$ 208.99

This product was last offered at the strikethrough price on
05-03-2026

$ 202.62 USD

Add to Wish List

Genuine BMW expansion tanks have a bad habit of failing after a few years. This has primarily been caused by the plastic construction of the expansion tanks. After enough heat cycles, the plastic becomes brittle and can crack, causing coolant to leak out and air to enter the coolant system. If a failing expansion tank is not addressed soon enough, the coolant loss can lead to an overheating engine. This kit includes two brand new high quality expansion tanks and caps

Show More Show Less

ECS Cooling System Refresh Kit - Level 2

10X Entries Into Our F80 M3 Sweepstakes

T#:15677514

Part#: 11281706545-KT

Ships in 1 Business Day

Sale - Save 3% $ 474.99

This product was last offered at the strikethrough price on
05-03-2026

$ 460.17 USD

Add to Wish List

Qty

Sale - Save 3%

$ 474.99

This product was last offered at the strikethrough price on
05-03-2026

$ 460.17 USD

Add to Wish List

Stop the problems before they arise. If your BMW has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. Avoid water pump failure, cracked thermostat housings, and expansion tank leaks, which all lead to overheating and subsequent damage. This kit was put together by Turner for a complete cooling system service. GEBA water pump with metal impeller ECS aluminum water pump pulley Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses Accessory drive belts Radiator drain plug

Show More Show Less

ECS Cooling System Refresh Kit - Level 1

10X Entries Into Our F80 M3 Sweepstakes

T#:15677493

Part#: 11517527910-KT

In Stock

Sale - Save 4% $ 336.99

This product was last offered at the strikethrough price on
05-03-2026

$ 323.65 USD

Add to Wish List

Qty

Sale - Save 4%

$ 336.99

This product was last offered at the strikethrough price on
05-03-2026

$ 323.65 USD

Add to Wish List

Stop the problems before they arise. If you vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. This kit was put together by Turner including the basic parts that need replaced. Water pump with metal impeller Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses

Show More Show Less

N52 ECS Cooling System Refresh Kit - E8x E9x

10X Entries Into Our F80 M3 Sweepstakes

T#:59440849

Part#: TWTRPMPPIEBRPRKT

In Stock

$ 665.99 USD

Add to Wish List

Qty

$ 665.99 USD

Add to Wish List

Be sure your cooling system is up to the task

ECS Cooling System Refresh Kit - Level 2

10X Entries Into Our F80 M3 Sweepstakes

T#:15710821

Part#: 17137607482-KT

In Stock

Sale - Save 20% $ 917.99

This product was last offered at the strikethrough price on
10-13-2026

$ 736.19 USD

Add to Wish List

Qty

Sale - Save 20%

$ 917.99

This product was last offered at the strikethrough price on
10-13-2026

$ 736.19 USD

Add to Wish List

As your mileage increases, so does wear and tear on your engine's cooling components. Cooling system components live a rough life, going through extreme temperature changes and being exposed to the elements. A cooling system failure can, and probably will leave you stranded. Included in this kit Water pump with new bolts Thermostat & housing Expansion tank with level sensor Expansion tank cap 1 Gallon of OEM Coolant Waterpump & thermostat hoses Upper and lower radiator hoses Accessory belt

Show More Show Less

Cooling System Refresh Kit - Level 2

10X Entries Into Our F80 M3 Sweepstakes

T#:15744066

Part#: 11287837898-KT

Ships on Dec 18, 2026

Sale - Save 3% $ 808.99

This product was last offered at the strikethrough price on
07-15-2026

$ 786.20 USD

Add to Wish List

Qty

Sale - Save 3%

$ 808.99

This product was last offered at the strikethrough price on
07-15-2026

$ 786.20 USD

Add to Wish List

BMW has been designing notoriously failure-prone cooling systems since the late 1980s. The coolant capacity in most BMW engines is not sufficient to accommodate any driving or overheating near red zone temperatures. After the gauge reaches this critical area, it is common for thousands of dollars in damage to occur. Stop the problems before they arise. If your vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. Saleri water pump with metal impeller ECS aluminum water pump pulley Fan switch Vaico Q+ thermostat - made in Germany! Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses Accessory drive belts Radiator drain plug

Show More Show Less

Cooling System Refresh Kit - Level 2 - E9x, E82, E88, Z4

10X Entries Into Our F80 M3 Sweepstakes

T#:42099868

Part#: 11537558523TKT

In Stock

Sale - Save 20% $ 829.99

This product was last offered at the strikethrough price on
05-03-2026

$ 667.28 USD

Add to Wish List

Qty

Sale - Save 20%

$ 829.99

This product was last offered at the strikethrough price on
05-03-2026

$ 667.28 USD

Add to Wish List

Keep your BMW running at the proper temperature and avoid costly engine repairs with the Cooling System Refresh Kit, the complete maintenance solution trusted by enthusiasts and professionals alike.

Show More Show Less

Cooling System Refresh Kit - Level 2

10X Entries Into Our F80 M3 Sweepstakes

T#:15677500

Part#: 82141467704-KT

In Stock

Sale - Save 20% $ 832.99

This product was last offered at the strikethrough price on
05-03-2026

$ 669.06 USD

Add to Wish List

Qty

Sale - Save 20%

$ 832.99

This product was last offered at the strikethrough price on
05-03-2026

$ 669.06 USD

Add to Wish List

As your mileage increases, so does wear and tear on your engine's cooling components. Cooling system components live a rough life, going through extreme temperature changes and being exposed to the elements. A cooling system failure can, and probably will leave you stranded. For automatic transmission (or DCT) vehicles only This kit includes: Thermostat with mounting hardware 1 gallon of BMW coolant Water pump with mounting hardware Primary cooling system hoses and radiator hose gasket, and bleeder screw Expansion tank with cap Accessory belt

Show More Show Less

Automatic Transmission Thermostat Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:57122955

Part#: 17111438819KT2

Back Ordered

Sale - Save 2% $ 93.99

This product was last offered at the strikethrough price on
10-19-2026

$ 91.86 USD

Add to Wish List

Qty

Sale - Save 2%

$ 93.99

This product was last offered at the strikethrough price on
10-19-2026

$ 91.86 USD

Add to Wish List

Keeping your E53 X5 automatic transmission cool is essential for longevity and peak performance. The factory transmission thermostat circuit relies on plastic housings and o-ring seals that deteriorate over time. When the transmission thermostat fails or it's mounting assembly cracks, coolant loss follows putting your transmission at risk of overheating under load.

Show More Show Less

Meyle Coolant Expansion Tank - E53 X5, E46 M52/54, E83 X3

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:369184

Part#: 17117573781

In Stock

$ 66.99 USD

Add to Wish List

Qty

$ 66.99 USD

Add to Wish List

We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.

Other items to consider replacing at the same time are the radiator cap, coolant level sensor, lower radiator hose, coolant temp sensor, and the hose clamps. If your car has an automatic transmission you should also replace the oil cooler thermostat in the radiator frame, which is a common source for leaks.

As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Show More Show Less

BMW Coolant Expansion Tank - 17137642160

2X Entries Into Our F80 M3 Sweepstakes

T#:45791749

Part#: 17137642160

In Stock

$ 85.00

This product was last offered at the strikethrough price on
04-28-2026

$ 79.99 USD

Add to Wish List

Qty

$ 79.99 USD

Add to Wish List

Expansion tanks take constant abuse from high heat and harsh coolant, making them prone to cracking or failure over time. A damaged tank can quickly lead to overheating and serious engine damage, so replacement is critical at the first sign of trouble. Features: Direct fitment for hassle-free installation Precision-molded to OE specs for perfect sensor and hose connections Durable construction stands up to extreme heat and coolant chemicals Factory pressure-tested for reliable performance

Show More Show Less

Charge Air Cooler Expansion Tank - Rein | BMW F22/23, F3X B48/B46 B58...

2X Entries Into Our F80 M3 Sweepstakes

T#:38229110

Part#: 17138617045

Ships in 3 Business Days

$ 73.99 USD

Add to Wish List

Qty

$ 73.99 USD

Add to Wish List

Charge Air Cooler Expansion Tank - Rein | BMW F22/23, F3X B48/B46 B58 is an essential component that ensures proper coolant circulation in the charge air cooling system. Acting as a reservoir, this expansion tank allows coolant to expand and contract with temperature fluctuations, preventing excessive pressure buildup. Over time, plastic tanks can become brittle due to constant exposure to heat cycles, leading to cracks and leaks. A failing tank can cause coolant loss, reducing the efficiency of the charge air cooler and leading to increased intake temperatures, which negatively impact horsepower and engine performance. Rein offers a high-quality direct replacement designed for durability and a perfect fit on BMW F22, F23, and F3X models with B48, B46, and B58 engines.

Maintains proper coolant circulation within the charge air cooling system
Prevents excessive pressure buildup caused by temperature fluctuations
Durable construction resists cracking and leaks for long-lasting performance
Direct replacement for BMW F22, F23, and F3X models with B48, B46, and B58 engines
Helps maintain optimal intake air temperatures, preserving horsepower and efficiency
OE-quality fitment ensures hassle-free installation and reliable function

Show More Show Less

BMW Expansion Tank With Cap - 17107514964

2X Entries Into Our F80 M3 Sweepstakes

T#:46616026

Part#: EPK0025

Ships in 3 Business Days

$ 74.99 USD

Add to Wish List

Qty

$ 74.99 USD

Add to Wish List

The coolant expansion tank provides a place for excess coolant to flow as temperatures rise and fall. Because it’s exposed to constant heat cycles and pressure changes, it can eventually crack, split, or suffer damage to its nipples or mounting points. Keeping coolant properly contained within the system is essential, so if your tank shows signs of wear or damage, replacement is necessary. This direct-fit replacement installs easily and delivers the same heating and cooling performance as the factory unit. When replacing the tank, be sure to have additional coolant on hand. ECS Tuning carries a full range of vehicle-specific coolants designed to meet OEM specifications. Most German vehicles require specialized formulas—using the correct coolant will help prevent corrosion and ensure long-term reliability.

Show More Show Less

Rein Engine Coolant Reservoir - BMW G1X, G3X

2X Entries Into Our F80 M3 Sweepstakes

T#:52516268

Part#: EPT0274

Ships in 3 Business Days

$ 114.99 USD

Add to Wish List

Qty

$ 114.99 USD

Add to Wish List

Protect your BMW investment with the Rein EPT0274 Engine Coolant Reservoir, the professional’s choice for cooling system restoration.

Meyle Coolant Expansion Tank - E36, E39, Z3

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:556111

Part#: 17111723520

Ships on Nov 16, 2026

$ 34.99 USD

Add to Wish List

Qty

$ 34.99 USD

Add to Wish List

Does not include cap or coolant level sensor

OEM Rein Coolant Expansion Tank Overflow Hose - BMW G01 G02 Gen1 B46/...

2X Entries Into Our F80 M3 Sweepstakes

T#:45757470

Part#: 17125A022D6

Back Ordered

$ 35.99 USD

Add to Wish List

Qty

$ 35.99 USD

Add to Wish List

This hose connects the expansion tank to the radiator. If your coolant expansion tank hose is cracked or leaking, replace it early to prevent further coolant loss and eventual overheating.

BMW Expansion Tank With Cap - 17137601948

2X Entries Into Our F80 M3 Sweepstakes

T#:46616024

Part#: EPK0141

In Stock

$ 97.99

This product was last offered at the strikethrough price on
06-01-2026

$ 87.99 USD

Limited Qty Sale

Add to Wish List

Qty

$ 97.99

This product was last offered at the strikethrough price on
06-01-2026

$ 87.99 USD

Limited Qty Sale

Add to Wish List

The coolant expansion tank provides a reservoir for excess coolant as it expands and contracts with temperature fluctuations. Constant exposure to these extreme changes can eventually cause the tank to crack or fail.

Show More Show Less

Meyle Expansion Tank Cap

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:579357

Part#: 3148009004

In Stock

Sale - Save 40% $ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD

Add to Wish List

Qty

Sale - Save 40%

$ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD

Add to Wish List

Replace worn or missing pieces.

Rein Expansion Tank Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:384807

Part#: 17117639021

In Stock

$ 16.99 USD

Add to Wish List

Qty

$ 16.99 USD

Add to Wish List

Cap for plastic expansion tank

OEM Rein Expansion Tank Cap - BMW E32 E34 E36 E38 E39 E46 & More ...

2X Entries Into Our F80 M3 Sweepstakes

T#:340541

Part#: 17111742231

In Stock

$ 17.99

This product was last offered at the strikethrough price on
10-22-2026

$ 13.69 USD

Add to Wish List

Qty

$ 13.69 USD

Add to Wish List

This radiator expansion tank cap is used most BMW's from 1991-2006. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

Show More Show Less

Coolant Expansion Tank

2X Entries Into Our F80 M3 Sweepstakes

T#:17704748

Part#: 17138677649

In Stock

$ 118.99

This product was last offered at the strikethrough price on
10-04-2026

$ 106.99 USD

Limited Qty Sale

Add to Wish List

Qty

$ 118.99

This product was last offered at the strikethrough price on
10-04-2026

$ 106.99 USD

Limited Qty Sale

Add to Wish List

Coolant Expansion Tank

5X Entries Into Our F80 M3 Sweepstakes

T#:54959296

Part#: 314 223 0004

In Stock

$ 75.99 USD

Add to Wish List

Qty

$ 75.99 USD

Add to Wish List

This Meyle original-quality expansion tank provides a durable, reliable solution to get your cooling system back to performing exactly as it should.

OEM Rein Expansion Tank w/ Cap - G30 540iX, G32 640iX, G11 740i ...

2X Entries Into Our F80 M3 Sweepstakes

T#:33946948

Part#: 17139846642

In Stock

$ 99.65 USD

Add to Wish List

Qty

$ 99.65 USD

Add to Wish List

The Expansion Tank is an essential part of your vehicle’s cooling system, designed to accommodate the expansion of coolant as it heats up during engine operation. This high-quality tank helps regulate coolant pressure, preventing overheating and ensuring optimal engine performance. Built to meet or exceed OEM standards, this expansion tank is crafted from durable, heat-resistant materials to provide long-lasting reliability. It offers a direct fit for a wide range of European vehicles, ensuring easy installation.

Prevents Overheating: Manages coolant expansion to maintain consistent engine temperature.
Durable Construction: Made from premium, heat-resistant materials to ensure long-term durability.
OEM Quality Fit: Designed for a precise fit, meeting or exceeding original equipment specifications.
Leak-Proof Design: Provides a secure seal to prevent coolant loss and maintain system efficiency.
Easy Installation: Direct replacement part, compatible with a variety of European vehicle models.

Find the Rein Expansion Tank at Turner Motorsport for top-quality replacement parts and reliable performance.

Show More Show Less

OEM Rein Coolant Expansion Tank - F97 F98 G01 G02 B46 B58 S58 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:39059266

Part#: 17135A6A030

In Stock

$ 86.99 USD

Add to Wish List

Qty

$ 86.99 USD

Add to Wish List

Coolant expansion tanks can crack over time, especially during services where they need to be removed. Replace your tank with a brand new tank to ensure your cooling system remains leak-free.

BMW Coolant Expansion Tank - 17139485733

2X Entries Into Our F80 M3 Sweepstakes

T#:45791753

Part#: 17139485733

In Stock at Vendor

$ 64.99

This product was last offered at the strikethrough price on
04-28-2026

$ 52.99 USD

Add to Wish List

Qty

$ 52.99 USD

Add to Wish List

Expansion tanks take constant abuse from high heat and harsh coolant, making them prone to cracking or failure over time. A damaged tank can quickly lead to overheating and serious engine damage, so replacement is critical at the first sign of trouble. Features: Direct fitment for hassle-free installation Precision-molded to OE specs for perfect sensor and hose connections Durable construction stands up to extreme heat and coolant chemicals Factory pressure-tested for reliable performance

Show More Show Less

Rein Coolant Expansion Tank Kit - F97 F98 G01 G02 G05 G06 G07 - S58 B...

2X Entries Into Our F80 M3 Sweepstakes

T#:55965839

Part#: 17138610661

Ships in 3 Business Days

$ 56.99 USD

Add to Wish List

Qty

$ 56.99 USD

Add to Wish List

Keep your ultimate driving machine cool under pressure with this replacement auxiliary expansion tank from Rein. On modern turbocharged BMWs, the secondary cooling system plays a critical role in managing intake charge air temperatures, making a solid reservoir vital for both spirited street driving and track day reliability.

Show More Show Less

Rein Expansion Tank Cap - E30, E34

2X Entries Into Our F80 M3 Sweepstakes

T#:592018

Part#: 17137639023

Ships in 3 Business Days

$ 14.99 USD

Add to Wish List

Qty

$ 14.99 USD

Add to Wish List

1.4 Bar pressure

Expansion Tank With Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:46616025

Part#: EPK0138

Ships in 3 Business Days

$ 71.99 USD

Add to Wish List

Qty

$ 71.99 USD

Add to Wish List

The coolant expansion tank allows excess coolant to flow in and out as temperatures rise and fall. Over time, repeated exposure to extreme temperature changes can cause the tank to crack, split, or break. To keep your cooling system sealed and functioning properly, any tank showing signs of damage—such as cracks, broken nipples, or compromised mounting points—should be replaced.

Show More Show Less

Expansion Tank - 17137617362

2X Entries Into Our F80 M3 Sweepstakes

T#:46478556

Part#: EPT0238

Ships in 3 Business Days

$ 56.99 USD

Add to Wish List

Qty

$ 56.99 USD

Add to Wish List

These expansion tanks tend to leak and will need replaced

Coolant Expansion Tank W/ Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:592210

Part#: 17137529273

In Stock at Vendor

$ 44.99

This product was last offered at the strikethrough price on
10-22-2026

$ 42.99 USD

Add to Wish List

Qty

$ 42.99 USD

Add to Wish List

Rein Reservoir Hose R50 / R52

2X Entries Into Our F80 M3 Sweepstakes

T#:34114213

Part#: 17127526414

Ships in 3 Business Days

$ 9.99 USD

Add to Wish List

Qty

$ 9.99 USD

Add to Wish List

Reservoir Hose CHE0885 is a top-quality replacement part designed for BMW vehicles, ensuring a reliable connection between your vehicle’s reservoir and cooling system. Engineered for durability and heat resistance, this hose provides a seamless flow of coolant to maintain optimal engine temperature, preventing overheating. Reservoir Hose CHE0885 is made to meet or exceed OEM specifications, ensuring a perfect fit for your BMW. Available through Turner Motorsport, this hose is an essential component for keeping your vehicle's cooling system functioning efficiently.

High-quality reservoir hose for BMW vehicles
Ensures reliable coolant flow for optimal engine performance
Made from heat-resistant, durable materials
Prevents overheating and engine damage
Meets or exceeds OEM specifications
Perfect fit for a variety of BMW models
Available from trusted supplier Turner Motorsport
Easy to install with secure connections

Show More Show Less

Coolant Expansion Tank

2X Entries Into Our F80 M3 Sweepstakes

T#:57086700

Part#: 17137642158

Ships in 3 Business Days

$ 55.99 USD

Add to Wish List

Qty

$ 55.99 USD

Add to Wish List

The factory expansion tank is one of the most common failure points in modern BMW cooling systems, often failing along seam welds or developing micro-cracks around fluid quick-connect fittings. Replacing a degraded reservoir with this direct-fit Rein expansion tank restores pressure containment, ensures accurate coolant expansion volume, and prevents fluid loss before it turns into severe engine damage.

Show More Show Less

Rein Coolant Expansion Tank - With Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:53891623

Part#: 17135A6A030C

Ships in 3 Business Days

$ 99.99 USD

Add to Wish List

Qty

$ 99.99 USD

Add to Wish List

Replace your old brittle expansion tank

Rein Coolant Expansion Tank - F97 F98 G01 G02 G05 G06 G07 - S58 B46 B...

2X Entries Into Our F80 M3 Sweepstakes

T#:55965843

Part#: 171386106612

Ships in 3 Business Days

$ 49.99 USD

Add to Wish List

Qty

$ 49.99 USD

Add to Wish List

Keep your ultimate driving machine cool under pressure with this replacement auxiliary expansion tank from Rein. On modern turbocharged BMWs, the secondary cooling system plays a critical role in managing intake charge air temperatures, making a solid reservoir vital for both spirited street driving and track day reliability.

Show More Show Less

Rein Coolant Expansion Tank With Cap And Level Sensor - BMW F22/23 F3...

2X Entries Into Our F80 M3 Sweepstakes

T#:58782356

Part#: 17137642158K

Ships in 3 Business Days

$ 76.99 USD

Add to Wish List

Qty

$ 76.99 USD

Add to Wish List

Eliminate coolant leaks with this brand new reservoir and cap kit from Rein - integrate coolant level sensor included with the coolant reservoir

BMW Expansion Tank With Cap - 17138570079

2X Entries Into Our F80 M3 Sweepstakes

T#:46616019

Part#: EPK0146

Ships in 3 Business Days

$ 93.99 USD

Add to Wish List

Qty

$ 93.99 USD

Add to Wish List

The coolant expansion tank serves as a reservoir for excess coolant as it expands and contracts with changing temperatures. Since it’s constantly exposed to extreme heat cycles, it can eventually crack, split, or suffer broken nipples or mounting points. To keep your cooling system sealed and operating properly, any damaged tank should be replaced.

Show More Show Less

OEM Rein Coolant Expansion Tank Overflow Hose - BMW G30 530e, G12 740...

2X Entries Into Our F80 M3 Sweepstakes

T#:45757471

Part#: 17125A02485

Ships in 3 Business Days

$ 41.99 USD

Add to Wish List

Qty

$ 41.99 USD

Add to Wish List

This hose connects the expansion tank to the radiator. If your coolant expansion tank hose is cracked or leaking, replace it early to prevent further coolant loss and eventual overheating.

Engine Coolant Expansion Tank Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:59038367

Part#: 17135A1BD89

Ships in 3 Business Days

$ 9.99 USD

Add to Wish List

Qty

$ 9.99 USD

Add to Wish List

Meyle Coolant Expansion Tank - BMW G0X X3 X4, F9X X3M X4M

5X Entries Into Our F80 M3 Sweepstakes

T#:50066859

Part#: 17135A6A030

In Stock

$ 75.99

This product was last offered at the strikethrough price on
09-20-2026

$ 65.99 USD

Limited Qty Sale

Add to Wish List

Qty

$ 75.99

This product was last offered at the strikethrough price on
09-20-2026

$ 65.99 USD

Limited Qty Sale

Add to Wish List

Replaces cracked or aged coolant expansion tank.

Meyle Expansion tank cap - E70, E71, F01, F02, F10, G80, G82 ...

5X Entries Into Our F80 M3 Sweepstakes

T#:40714795

Part#: 3142380005

Ships on Nov 16, 2026

$ 9.99 USD

Add to Wish List

Qty

$ 9.99 USD

Add to Wish List

Ensure your BMW's cooling system stays sealed and protected with this dependable Meyle expansion tank cap.

Fluid Level Sensor

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:5973204

Part#: 17117546548

Ships on Nov 16, 2026

$ 13.99 USD

Add to Wish List

Qty

$ 13.99 USD

Add to Wish List

MEYLE-ORIGINAL: True to OE fluid level sensor. Used in multiple locations. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 17117546548

Show More Show Less

Meyle Expansion Tank - BMW F39/F44/F48, MINI F54/56/57/60 (B48/46/36)...

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:8677201

Part#: 17138687503

Ships on Nov 16, 2026

$ 67.99 USD

Add to Wish List

Qty

$ 67.99 USD

Add to Wish List

The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it.

Show More Show Less

Meyle Coolant Expansion Tank - F30/32/36 N20/26 2.0L

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:5973235

Part#: 17137642158

Ships on Nov 16, 2026

$ 111.99 USD

Add to Wish List

Qty

$ 111.99 USD

Add to Wish List

The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans, and commercial vehicles.

Show More Show Less

Meyle Coolant Expansion Tank - BMW E70 E71

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:35998394

Part#: 17138621092

Ships on Nov 16, 2026

$ 85.99 USD

Add to Wish List

Qty

$ 85.99 USD

Add to Wish List

The coolant expansion tank in your vehicle provides extra space for fluid expansion and contraction due to temperature changes. Because it regularly experiences these fluctuations, it can become prone to cracks or breaks over time. To ensure that all coolant remains within the system, it's important to replace the tank if it has been damaged, such as with cracks, broken nipples, or damaged mounting points.

Show More Show Less

Meyle Charge Air Cooler Expansion Tank - F22, F23, F30, F31, F32, F33...

5X Entries Into Our F80 M3 Sweepstakes

T#:40714794

Part#: 17138617045

Ships on Nov 16, 2026

$ 72.99 USD

Add to Wish List

Qty

$ 72.99 USD

Add to Wish List

Keep your turbocharged BMW operating at its best with the Meyle Charge Air Cooler Expansion Tank 314 223 0025.

Coolant Expansion Tank

5X Entries Into Our F80 M3 Sweepstakes

T#:55569540

Part#: 17137823626

Ships on Nov 16, 2026

$ 74.99 USD

Add to Wish List

Qty

$ 74.99 USD

Add to Wish List

BMW Expansion Tank With Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:46616010

Part#: EPK0128

Ships in 3 Business Days

$ 86.99

This product was last offered at the strikethrough price on
04-28-2026

$ 74.99 USD

Add to Wish List

Qty

$ 74.99 USD

Add to Wish List

The coolant expansion tank acts as a reservoir for excess coolant as it expands and contracts with temperature changes. Over time, the constant exposure to extreme heat cycles can cause the tank to crack, break, or suffer damage to its nipples or mounting points. To keep coolant properly contained within the system, a damaged tank should be replaced promptly.

Show More Show Less

BMW Expansion Tank Kit - 17137647283

2X Entries Into Our F80 M3 Sweepstakes

T#:46616005

Part#: EPK0151

Ships in 3 Business Days

$ 100.99 USD

Add to Wish List

Qty

$ 100.99 USD

Add to Wish List

Replace your damaged expansion tank to prevent coolant loss or potential overheating issues. his item fits the following BMW Chassis: F01,F02,F06,F10,F12,F13 Fits BMW Engines including: N54,N55,N57N

Show More Show Less

BMW Coolant Expansion Tank With Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:46616009

Part#: EPK0013

In Stock at Vendor

$ 71.99 USD

Add to Wish List

Qty

$ 71.99 USD

Add to Wish List

The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it. This replacement will fit perfectly and provide the same heating and cooling characteristics as an original unit. When replacing, be sure to have some extra coolant. Check ECS Tuning's website for a wide variety of coolants specifically designed for your car. Most German vehicles require specialized coolant. Be sure to pick up the proper coolant when refilling to avoid damage or premature corrosion.

Show More Show Less

Project Cars

SELECT YOUR BMW

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results