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BMW E39 540i M62 4.4L

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BMW E39 540i M62 4.4L Cooling Expansion Tank Parts

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Expansion Tank Cap

ES#4304653 - 17117639022 - Expansion Tank Cap - Prevent pressure loss and overheating with a new expansion tank cap - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Prevent pressure loss and overheating with a new expansion tank cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304653
Mfg#:
17117639022
In Stock
ON SALE! SAVE 15%
$13.99

This product was last offered at the strikethrough price on
06-03-2026

$11.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#4818567 - 17111741167 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Bremmen Parts - BMW

Replace your cracked or faded expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818567
Mfg#:
17111741167
In Stock
ON SALE! SAVE 21%
$59.99

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

$47.32 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2777575 - 17117639022 - Expansion Tank Cap - Replace worn or missing pieces. - Genuine BMW - BMW

Replace worn or missing pieces. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2777575
Mfg#:
17117639022
Ships in 1 Business Day
21% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$34.96

This product was last offered at the strikethrough price on
06-03-2026

$27.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3023872 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - Mahle-Behr - BMW

Replace when performing cooling service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
3023872
Mfg#:
17111742231
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2162551 - 17111741167 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Mahle-Behr - BMW

Replace your cracked or faded expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
2162551
Mfg#:
17111741167
In Stock at Vendor
$100.99

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

$98.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2 Pin Connector

ES#4772597 - 61132359999 - 2 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. - ECS - BMW MINI

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772597
Mfg#:
61132359999
Ships on Jul 28, 2026
Auto Notify
ON SALE! SAVE 25%
$10.99

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

$8.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#37936 - 17111741167 - Coolant Expansion Tank - Does not include level sensor and cap - Genuine BMW - BMW

Does not include level sensor and cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37936
Mfg#:
17111741167
Ships in 1-2 days
4% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$164.99

This product was last offered at the strikethrough price on
06-03-2026

$158.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3148877 - 17111741167 - Coolant Expansion Tank - Plastic has a limited lifespan - replace every 80,000 miles - Rein - BMW

Plastic has a limited lifespan - replace every 80,000 miles affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3148877
Mfg#:
17111741167
In Stock
$69.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2593211 - 17111741167KT6 - Expansion Tank Replacement Kit - Includes an OE replacement expansion tank - Assembled By ECS - BMW

Includes an OE replacement expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes durable brass coolant bleeder screw - no more stripped or broken bleeder screws!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593211
Mfg#:
17111741167KT6
In Stock at Vendor
ON SALE! SAVE 17%
$114.99

This product was last offered at the strikethrough price on
01-03-2026

$95.35 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Coolant Level Sensor

ES#168111 - 61318360876 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Genuine BMW - BMW

Monitors the coolant level in the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
168111
Mfg#:
61318360876
In Stock
3% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$92.99

This product was last offered at the strikethrough price on
06-03-2026

$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#2876093 - 61318360876 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Febi - BMW

Monitors the coolant level in the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2876093
Mfg#:
61318360876
In Stock
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Grommet

ES#177738 - 64126910076 - Expansion Tank Grommet - Used in the expansion tank - Genuine BMW - BMW MINI

Used in the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
177738
Mfg#:
64126910076
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3672879 - 17117639022 - Expansion Tank Cap - Replace worn or missing pieces. - Meyle - BMW

Replace worn or missing pieces. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3672879
Mfg#:
17117639022
In Stock
ON SALE! SAVE 44%
$15.99

This product was last offered at the strikethrough price on
12-29-2025

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap Seal

ES#37883 - 17111723117 - Expansion Tank Cap Seal - Keep coolant in. - Genuine BMW - BMW

Keep coolant in. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37883
Mfg#:
17111723117
In Stock
$12.99

This product was last offered at the strikethrough price on
04-06-2026

$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#205244 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - Rein - BMW
ECS Tuning recommends this product.

Replace when performing cooling service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
205244
Mfg#:
17111742231
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2592944 - 17111741167KT5 - Expansion Tank Replacement Kit - Includes a replacement URO expansion tank - Assembled By ECS - BMW

Includes a replacement URO expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes durable brass coolant bleeder screw - no more stripped or broken bleeder screws!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2592944
Mfg#:
17111741167KT5
Ships in 6 Business Days
ON SALE!
$108.99

This product was last offered at the strikethrough price on
01-03-2026

$105.85 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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