N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit
This product was last offered at the strikethrough price on
08-09-2025

Product Details
Turner Motorsport's 5052 aluminum wrinkle black powder coated expansion tank is an excellent upgrade or preventative maintenance item that addresses all of the issues with factory N52/N54 expansion tanks. Direct fit with no modifications. In addition to the aluminum expansion tank, this kit includes an aluminum bleeder screw, new expansion tank cap, new coolant level sensor, and more.
Don't be a part of the stigma that BMW's are unreliable, they are well engineered and made to drive. Unfortunately BMW's Achilles heel is the cooling system. Factory plastic expansion tanks are known to crack, explode or the plastic nipple for the return line breaks off. If your N52/N54 has a plastic expansion tank and it is still intact after years of heat cycling, consider yourself lucky - however, it is not a question of whether or not it will fail, it is a question of when it will fail. When your expansion tank fails it could leave you stranded on the side of the road or with a mess of coolant covering everything under your hood. Install the Turner aluminum expansion tank before it is too late!
Chances are your BMW needs a new expansion tank right now, make sure this is the last expansion tank you ever buy. With a full aluminum construction and wrinkle black powder coat, this expansion tank will be durable and the last expansion tank you will ever need purchase. One and done, make sure the job is done correctly and fixed forever. This kit comes with all the components you need to replace your expansion tank the right way and get back to enjoying your BMW.
Kit includes:
- Turner Aluminum Expansion Tank
- Heavy duty aluminum bleeder screw
- Coolant level sensor
- Expansion tank cap
- Flared coolant pressure release line
- Hardware for installation
Product Features:
- Maintains stock coolant capacity and expansion volume
- Designed to maintain OE coolant elevation, preventing air pockets
- Baffled tank ensures that air pockets cannot be introduced during aggressive driving and provides accurate coolant level reading
- Carefully designed bleed passage prevents the introduction of air as the engine cools
- Turner engraved internal fill level
- TIG welded 5052 aluminum construction
- All bungs are machined to fit factory hose ends
Installation:
Everything you need to complete the installation is included in Turner's kit. Check under the documentation tab for detailed installation instructions from Turner Motorsport.
PRODUCT DEVELOPMENT
Turner expansion tanks are designed, engineered, tested and quality inspected by the Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer and rigorous long term product testing.
- 17137640514
- 17137553919
- 11537793373
- 17117639020
This Part Fits the Following Vehicles
Make | Model | Submodel | Engine | Special Fitment Notes |
---|---|---|---|---|
BMW | E82 | 1 M Coupe | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E82 | 128i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E82 | 135i | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E84 | X1 sDrive28i | N20 2.0L | Use vehicle selector to confirm fitment |
BMW | E84 | X1 xDrive28i | N20 2.0L | Use vehicle selector to confirm fitment |
BMW | E88 | 128i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E88 | 135i | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E90 | 325i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E90 | 325xi | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E90 | 328i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E90 | 328xi | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E90 | 330i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E90 | 330xi | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E90 | 335i | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E90 | 335xi | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E91 | 325xi | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E91 | 328i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E91 | 328xi | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E92 | 328i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E92 | 328xi | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E92 | 335i | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E92 | 335is | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E92 | 335xi | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E93 | 328i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | E93 | 335i | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | E93 | 335is | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | Z4 | sDrive28i | N20 2.0L | Use vehicle selector to confirm fitment |
BMW | Z4 | sDrive30i | N52 3.0L | Use vehicle selector to confirm fitment |
BMW | Z4 | sDrive35i | N54 3.0L | Use vehicle selector to confirm fitment |
BMW | Z4 | sDrive35is | N54 3.0L | Use vehicle selector to confirm fitment |
Installation
This Product Is Covered By Our Lifetime Replacement Program
Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.
If you have any questions, would like to learn more or are ready to place a replacement claim, click here!
Return and Exchanges
Need to set up a return? Click here to begin: Return Process
All you need is your order number and email address.
New/Unused Product Returns
ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.
In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.
Refused Packages
Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.
Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.
Return Process
ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!
Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.
Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.
All in store credit balances will expire after one year from the original purchase date.
Shipping Policy
Free Shipping On Orders $49 & Up
Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.
Free Shipping
Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.
The policies listed above are subject to change at any time without notice.
Lifetime Replacement
Want to know more about our Lifetime Replacement program?
Click here to learn more.
Why You Should Shop From ECS Tuning
ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.
Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.
Cancellation Policy
At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.
Hurry, limited stock available!
