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BMW F30 Cooling Expansion Tank Parts

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Silver Auxiliary Coolant Reservoir Cap

ES#4882956 - 201-0394-SIL - Silver Auxiliary Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882956
Mfg#:
201-0394-SIL
Ships in 8 Business Days
$99.99

This product was last offered at the strikethrough price on
01-22-2026

$94.99 USD
Free Shipping
on orders $49 and up

Blue Auxiliary Coolant Reservoir Cap

ES#4882951 - 201-0394-BLU - Blue Auxiliary Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882951
Mfg#:
201-0394-BLU
Ships in 10 Business Days
$99.99

This product was last offered at the strikethrough price on
01-22-2026

$94.99 USD
Free Shipping
on orders $49 and up

Expansion Tank

ES#4809968 - 17138677649 - Expansion Tank - Quality replacement for your cracked and/or damaged coolant expansion tank. - URO - BMW

Quality replacement for your cracked and/or damaged coolant expansion tank. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4809968
Mfg#:
17138677649
In Stock
ON SALE!
$87.99

This product was last offered at the strikethrough price on
07-14-2026

$85.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Charge Air Cooler Expansion Tank

ES#4772705 - 17138617045 - Charge Air Cooler Expansion Tank - Replace your cracked or leaking tank - Vaico - BMW

Replace your cracked or leaking tank We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4772705
Mfg#:
17138617045
Special Order: No Guaranteed ETA
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Coolant Hose - Blue

The VTT Expansion Tank Hose is a premium cooling system upgrade designed to eliminate the most common failure points in the B58 engine’s cooling circuit. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5445610
Mfg#:
VTT-B58-CEBLUE
Ships on Aug 5, 2026
$59.99 USD
Free Shipping

Coolant Expansion Tank

ES#5340950 - 17137642158 - Coolant Expansion Tank - Includes level sensor - Bremmen Parts - BMW

Includes level sensor 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5340950
Mfg#:
17137642158
In Stock
ON SALE! SAVE 26%
$67.99

This product was last offered at the strikethrough price on
05-02-2026

$50.00 USD
Free Shipping
on orders $49 and up

BMW | Cap, coolant tank

ES#4861045 - 17135A1BD89 - BMW | Cap, coolant tank - Vaico - BMW

We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4861045
Mfg#:
17135A1BD89
In Stock at Vendor
$24.99

This product was last offered at the strikethrough price on
05-07-2026

$23.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank Cap

ES#2801130 - 17117639020 - Coolant Expansion Tank Cap - Keep that coolant expansion tank sealed - Meistersatz - BMW

Keep that coolant expansion tank sealed

Brand:
Meistersatz - Corporate Logo
ES#:
2801130
Mfg#:
17117639020
Ships in 4 Business Days
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

ES#4328152 - 17117639020 - Coolant Expansion Tank Cap - Keep that coolant expansion tank sealed - Meyle - BMW

Keep that coolant expansion tank sealed 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4328152
Mfg#:
17117639020
Ships on Nov 30, 2026
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Kit

ES#4776041 - 17138677649EKT - Coolant Expansion Tank Kit - Includes both the Engine Coolant Expansion Tank and Charge Air Cooler Coolant Expansion Tank, plus both of the expansion tank caps - Assembled By ECS - BMW

Includes both the Engine Coolant Expansion Tank and Charge Air Cooler Coolant Expansion Tank, plus both of the expansion tank caps 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4776041
Mfg#:
17138677649EKT
In Stock at Vendor
ON SALE!
$208.99

This product was last offered at the strikethrough price on
05-02-2026

$198.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Coolant Expansion Tank Cap Cover (Red Carbon)

ES#4900218 - BM-0803-RC - Carbon Coolant Expansion Tank Cap Cover (Red Carbon) - Upgrade to AutoTecknics Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover in Red Carbon and give your BMW the exclusive, high-performance look it deserves. - Autotech - BMW

Upgrade to AutoTecknic’s Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover in Red Carbon and give your BMW the exclusive, high-performance look it deserves.

Brand:
Autotech - Corporate Logo
ES#:
4900218
Mfg#:
BM-0803-RC
Ships in 8 Business Days
$74.99 USD
Free Shipping
on orders $49 and up

Charge Air Cooler Expansion Tank

ES#4883205 - 17138617045 - Charge Air Cooler Expansion Tank - Replace your cracked or leaking tank - Rein - BMW

Replace your cracked or leaking tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4883205
Mfg#:
17138617045
Ships in 4 Business Days
$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Coolant Expansion Tank

ES#4348591 - 17138677649 - Engine Coolant Expansion Tank - Replace your cracked or leaking tank - Does not include cap or coolant level sensor - Vaico - BMW

Replace your cracked or leaking tank - Does not include cap or coolant level sensor We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4348591
Mfg#:
17138677649
In Stock at Vendor
$258.99

This product was last offered at the strikethrough price on
05-07-2026

$251.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Charge Air Cooler Expansion Tank

ES#4325545 - 17138617045 - Charge Air Cooler Expansion Tank - Replace your cracked or leaking tank - MTC - BMW

Replace your cracked or leaking tank

Brand:
MTC - Corporate Logo
ES#:
4325545
Mfg#:
17138617045
Ships in 10 Business Days
$64.46 USD
Free Shipping
on orders $49 and up

Black Engine Coolant Reservoir Cap

ES#4882996 - 201-0393-BLK - Black Engine Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay! - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882996
Mfg#:
201-0393-BLK
Ships in 10 Business Days
$115.99

This product was last offered at the strikethrough price on
01-22-2026

$109.99 USD
Free Shipping
on orders $49 and up

Black Auxiliary Coolant Reservoir Cap

ES#4882954 - 201-0394-BLK - Black Auxiliary Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882954
Mfg#:
201-0394-BLK
Ships in 10 Business Days
$99.99

This product was last offered at the strikethrough price on
01-22-2026

$94.99 USD
Free Shipping
on orders $49 and up

More About Cooling Expansion Tank Parts

A common source of overheating problems is a broken or leaking coolant expansion tank. Replace it with an OEM coolant expansion tank or quality aftermarket expansion tank to prevent future woes.

Let us help you find the parts that fit your BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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