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BMW E30 325e M20 2.7L

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BMW E30 325e M20 2.7L Cooling Expansion Tank Parts

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E30 Coolant Expansion Tank

ES#3464804 - 17111712641 - E30 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
For vehicles with production date from 09/1987

Brand:
Mahle-Behr - Corporate Logo
ES#:
3464804
Mfg#:
17111712641
In Stock at Vendor
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2814069 - 17111707540 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Hamburg Tech - BMW

Replace your cracked or faded expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/1987

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814069
Mfg#:
17111707540
In Stock
$79.99 USD
Free Shipping
on orders $49 and up
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! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4772597
Mfg#:
61132359999
Ships on Jul 28, 2026
Auto Notify
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#4389467 - 17111712641 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - URO - BMW

Replace your cracked or faded expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1987

Brand:
URO - Corporate Logo
ES#:
4389467
Mfg#:
17111712641
In Stock
$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#37828 - 17111712641 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Genuine BMW - BMW

Replace your cracked or faded expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/1987

Brand:
Genuine BMW - Corporate Logo
ES#:
37828
Mfg#:
17111712641
Ships in 6 Business 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
06-12-2026

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

Coolant Level Sensor

ES#2695771 - 61311378320 - Coolant Level Sensor - Located on the top of the coolant expansion tank - Febi - BMW

Located on the top of the coolant 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#:
2695771
Mfg#:
61311378320
Ships in 3 Business Days
$23.99

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

$23.22 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E30 Over Flow Hose

ES#130509 - 51731911369 - E30 Over Flow Hose - Allows coolant overflow to escape from the expansion tank - Genuine BMW - BMW

Allows coolant overflow to escape from the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
130509
Mfg#:
51731911369
In Stock
2% off MSRP

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

$45.99

This product was last offered at the strikethrough price on
06-12-2026

$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#166579 - 61311378320 - Coolant Level Sensor - Located on the top of the coolant expansion tank - Genuine BMW - BMW

Located on the top of the coolant expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
166579
Mfg#:
61311378320
Ships in 6 Business Days
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
06-12-2026

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

Coolant Level Sensor

ES#4818660 - 61311378320 - Coolant Level Sensor - Located on the top of the coolant expansion tank - Bremmen Parts - BMW

Located on the top of the coolant 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#:
4818660
Mfg#:
61311378320
In Stock
ON SALE! SAVE 56%
$34.99

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

$15.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3015898 - 17137639023 - Expansion Tank Cap - 1.4 Bar pressure - Genuine BMW - BMW

1.4 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/1987

Brand:
Genuine BMW - Corporate Logo
ES#:
3015898
Mfg#:
17137639023
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E30 Expansion Tank

ES#36928 - 16131178014 - E30 Expansion Tank - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
36928
Mfg#:
16131178014
Special Order: No Guaranteed ETA
4% off MSRP

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

$373.00

This product was last offered at the strikethrough price on
06-12-2026

$358.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor - 109mm Long

ES#166524 - 61311375715 - Coolant Level Sensor - 109mm Long - Replace your coolant level sensor and ensure that your levels are accurately monitored - Genuine BMW - BMW

Replace your coolant level sensor and ensure that your levels are accurately monitored affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
166524
Mfg#:
61311375715
Ships in 3 Business Days
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
06-12-2026

$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator To Expansion Tank Hose - 1 Meter

ES#37639 - 17111150232 - Radiator To Expansion Tank Hose - 1 Meter - Runs from the radiator to the expansion tank - Genuine BMW - BMW

Runs from the radiator to the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37639
Mfg#:
17111150232
Ships in 3 Business Days
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#37766 - 17111707540 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Genuine BMW - BMW

Replace your cracked or faded expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 09/1987

Brand:
Genuine BMW - Corporate Logo
ES#:
37766
Mfg#:
17111707540
In Stock
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
06-12-2026

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

Expansion Tank Cap

ES#2874167 - 17111742232 - Expansion Tank Cap - 1.4 Bar pressure - Febi - BMW

1.4 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1987

Brand:
Febi - Corporate Logo
ES#:
2874167
Mfg#:
17111742232
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#38066 - 17114379047 - Expansion Tank Cap - 1.2 Bar pressure - Genuine BMW - BMW

1.2 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 09/1987

Brand:
Genuine BMW - Corporate Logo
ES#:
38066
Mfg#:
17114379047
Ships in 3 Business 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.

$47.99

This product was last offered at the strikethrough price on
06-12-2026

$45.99 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.

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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