BMW Coolant Expansion Tanks for BMW 3 Series F30 (2012+)

Clear BMW chassis

Please ensure your correct model is selected

On certain models, namely E36, E46, and E90, the factory BMW expansion tank is prone to either breaking at connection points or blowing apart altogether. If you're starting to feel like your expansion tank is on borrowed time, it's probably time to replace with either a direct OE replacement, or strengthen your cooling setup with an aluminum expansion tank - we offer numerous performance upgrades for your expansion tank. Especially if you're someone who likes to track your BMW, we recommend upgrading your expansion tank to avoid ruining your track day.
Sort By:

ECS Tuning Aluminum Coolant Bleeder Screw
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:363070
Part#: 003530ECS01A
In Stock
Sale - Save 25% $ 35.99

This product was last offered at the strikethrough price on
06-13-2026

$ 26.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 35.99

This product was last offered at the strikethrough price on
06-13-2026

$ 26.99 USD
Free Shipping on orders $49 and up

Replace the flimsy plastic bleeder screw used in the coolant expansion tank or in one of the cooling system hoses with this high quality, durable, aluminum bleeder screw. The stock plastic screw can deform over time due to heat or even regular use. We have even seen the head of the screw snap off, leaving the threaded body stuck in the expansion tank. This aluminum screw will help to prevent sudden failure of the bleeder screw, which can result in immediate overheating of the car.

ECS Tuning's Aluminum Coolant Bleeder Screw replaces Genuine BMW Part Number 17111712788

Show More Show Less
Vargas Turbo Technologies - Corporate Logo
T#:51848504
Part#: VTT-B58-CEBLUE
Ships on Oct 21, 2026
New Item
$ 59.99 USD
Free Shipping
$ 59.99 USD
Free Shipping
Elevate your BMW's engine bay while safeguarding your cooling system with the VTT B58 Expansion Tank Hose in Blue.
2 Pin Connector
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:33412932
Part#: 61132359999
In Stock
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

Show More Show Less

Febi - Corporate Logo
T#:56544003
Part#: 17138677649
Special Order: No Guaranteed ETA
New Item
$ 82.99 USD
Free Shipping on orders $49 and up
Prevent catastrophic track-day or daily-driving overheating with this OEM-spec replacement Coolant Expansion Tank by Febi Bilstein.

Febi - Corporate Logo
T#:56001934
Part#: 46221
Special Order: No Guaranteed ETA
New Item
$ 19.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein coolant expansion tank cap is designed to maintain the exact 1.4 bar pressure required to maximize your coolant's boiling point.
Febi - Corporate Logo
T#:56507814
Part#: 17137642160
Special Order: No Guaranteed ETA
New Item
$ 62.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein coolant expansion tank offers OEM quality, engineered to withstand aggressive driving, high thermal loads, and pressurized environments.