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BMW E46 M3 S54 3.2L

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BMW E46 M3 S54 3.2L Cooling Expansion Tank Parts

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E46 M3 Air Pump And Coolant Reservoir Bracket

ES#37985 - 17112229108 - E46 M3 Air Pump And Coolant Reservoir Bracket - Located on the passenger side of engine bay - Genuine BMW - BMW

Located on the passenger side of engine bay

Brand:
Genuine BMW - Corporate Logo
ES#:
37985
Mfg#:
17112229108
Ships in 6 Business Days
2% off MSRP

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

$212.99

This product was last offered at the strikethrough price on
08-25-2026

$207.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Clamp

ES#37772 - 17111707777 - Expansion Tank Mounting Clamp - Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank - Genuine BMW - BMW

Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank

Brand:
Genuine BMW - Corporate Logo
ES#:
37772
Mfg#:
17111707777
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp - Priced Each

ES#54801 - 32411712735 - Hose Clamp - Priced Each - 12mm-14.5mm diameter - Genuine BMW - BMW

12mm-14.5mm diameter

Brand:
Genuine BMW - Corporate Logo
ES#:
54801
Mfg#:
32411712735
In Stock
$2.99 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. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
205244
Mfg#:
17111742231
Ships in 2 Business Days
$17.99 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. 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3672879
Mfg#:
17117639022
In Stock
ON SALE! SAVE 40%
$14.99

This product was last offered at the strikethrough price on
05-14-2026

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

Expansion Tank Cap

ES#2187552 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - URO - BMW

Replace when performing cooling service. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2187552
Mfg#:
17111742231
Ships in 2 Business Days
$11.99

This product was last offered at the strikethrough price on
08-13-2026

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

Over Flow Hose

ES#38868 - 17222246036 - Over Flow Hose - Attaches to expansion tank - Genuine BMW - BMW

Attaches to expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
38868
Mfg#:
17222246036
Ships in 9 Business Days
2% off MSRP

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

$44.99

This product was last offered at the strikethrough price on
08-25-2026

$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2814079 - 17111742231 - Expansion Tank Cap - Replace worn or missing pieces. - Hamburg Tech - BMW

Replace worn or missing pieces. We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814079
Mfg#:
17111742231
Ships in 2 Business Days
$9.17 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Clamp

ES#3984619 - 17111707777 - Expansion Tank Mounting Clamp - Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank - URO - BMW

Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3984619
Mfg#:
17111707777
Ships in 2 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cable Clip - Priced each

ES#159278 - 61102492990 - Cable Clip - Priced each - See MOQKT - Genuine BMW - BMW

See MOQKT

Brand:
Genuine BMW - Corporate Logo
ES#:
159278
Mfg#:
61102492990
Ships in 3 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Clamp

ES#2814070 - 17111707777 - Expansion Tank Mounting Clamp - Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank - Hamburg Tech - BMW

Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814070
Mfg#:
17111707777
Ships in 2 Business Days
$6.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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.

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

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