Home
Cooling
Expansion Tanks

BMW Coolant Expansion Tanks for BMW X Series E71 (2008-2014)

Clear BMW chassis

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:

Coolant Expansion Tank Cap - E9x M3, E60 E63 F01 E70 E71

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

T#:194502

Part#: 17117639021

Ships in 1-2 days

22% off MSRP $ 34.96

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

$ 27.29 USD

Add to Wish List

Qty

22% off MSRP

$ 34.96

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

$ 27.29 USD

Add to Wish List

This radiator expansion tank cap is used most BMW's from 2006+. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

Show More Show Less

Genuine BMW Engine Coolant Expansion Tank Cap - 17135A1BD89

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

T#:29699315

Part#: 17135A1BD89

In Stock

9% off MSRP $ 34.99

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

$ 31.99 USD

Add to Wish List

Qty

9% off MSRP

$ 34.99

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

$ 31.99 USD

Add to Wish List

Genuine BMW Cover Lid
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5,E71 X6,F01,F02,F06,F10,F12,F13,F15,F16,F30,F80 M3,F82 M4,F83,i3i12

Coolant Expansion Tank - E70 X5, E71 X6

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

T#:217490

Part#: 17138621092

In Stock

8% off MSRP $ 236.99

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

$ 216.99 USD

Add to Wish List

Qty

8% off MSRP

$ 236.99

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

$ 216.99 USD

Add to Wish List

Genuine BMW Expansion Tank -

This item fits the following BMW Chassis:
E70,E71,F15,F16,

This item fits the following BMW Engines:
N63,N63N,S63,N62N

Show More Show Less

Meistersatz CAP- EXPANSION TANK

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

T#:1195781

Part#: 17117639021

Ships in 4 Business Days

$ 29.99 USD

Add to Wish List

Qty

$ 29.99 USD

Add to Wish List

URO Intercooler Expansion Tank - BMW N63 N74

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:593075

Part#: 17137647281

Ships in 2 Business Days

$ 59.99 USD

Add to Wish List

Qty

$ 59.99 USD

Add to Wish List

The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break.

Show More Show Less

Genuine MINI Engine Coolant Expansion Tank Cap - 17135A1BD89 ...

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

T#:28337931

Part#: 17135A1BD89

Ships in 3 Business Days

26% off MSRP $ 34.99

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

$ 25.99 USD

Add to Wish List

Qty

26% off MSRP

$ 34.99

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

$ 25.99 USD

Add to Wish List

Genuine BMW Intercooler Expansion Tank - N63 4.4L

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

T#:191410

Part#: 17137647281

Ships in 1-2 days

9% off MSRP $ 162.99

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

$ 148.99 USD

Add to Wish List

Qty

9% off MSRP

$ 162.99

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

$ 148.99 USD

Add to Wish List

Genuine BMW Expansion Tank -
This item fits the following BMW Chassis:
E71,F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N63,N63N

Intercooler Expansion Tank

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:584477

Part#: 17137647281

In Stock

$ 71.99 USD

Add to Wish List

Qty

$ 71.99 USD

Add to Wish List

Rein Expansion Tank Cap

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:384807

Part#: 17117639021

Ships in 2 Business Days

$ 16.99 USD

Add to Wish List

Qty

$ 16.99 USD

Add to Wish List

Cap for plastic expansion tank

Expansion Tank Cap

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:373099

Part#: 17137516004

Ships in 2 Business Days

$ 15.99

This product was last offered at the strikethrough price on
04-10-2026

$ 10.99 USD

Add to Wish List

Qty

$ 10.99 USD

Add to Wish List

The coolant expansion tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap.

Show More Show Less

Expansion Tank - E70, E71

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

T#:46468

Part#: 17137589526

Ships in 4 Business Days

8% off MSRP $ 202.99

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

$ 185.99 USD

Add to Wish List

Qty

8% off MSRP

$ 202.99

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

$ 185.99 USD

Add to Wish List

Genuine BMW Expansion Tank
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5,E71 X6

Fits BMW Engines including:
S63

BMW Coolant Expansion Tank

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

T#:38553896

Part#: 17137575578

Special Order: No Guaranteed ETA

$ 73.99 USD

Add to Wish List

Qty

$ 73.99 USD

Add to Wish List

Coolant Expansion Tank Keep your vehicle's cooling system functioning properly with the Coolant Expansion Tank, designed to safely contain and manage coolant expansion as engine temperatures rise. This durable tank helps regulate pressure and fluid levels, preventing overheating and protecting your engine components from damage. Key Features: OEM-Quality Construction – Built to meet or exceed factory standards for perfect fit and reliability. Long-Lasting Durability – Crafted from high-quality materials resistant to cracking, corrosion, and extreme heat. Pressure Regulation – Ensures balanced pressure and fluid levels for effective cooling system operation. Leak-Free Design – Seals securely to prevent coolant leaks and maintain optimal engine temperature. Simple Installation – Direct-fit replacement for a quick and easy upgrade. Replace your damaged or aging Coolant Expansion Tank to maintain optimal cooling performance and protect your engine from heat-related issues.

Show More Show Less

Fluid Level Sensor

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

T#:5973204

Part#: 17117546548

Special Order: No Guaranteed ETA

$ 13.99 USD

Add to Wish List

Qty

$ 13.99 USD

Add to Wish List

MEYLE-ORIGINAL: True to OE fluid level sensor. Used in multiple locations. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 17117546548

Show More Show Less

Meyle Coolant Expansion Tank - BMW E70 E71

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

T#:35998394

Part#: 17138621092

Special Order: No Guaranteed ETA

$ 85.99 USD

Add to Wish List

Qty

$ 85.99 USD

Add to Wish List

The coolant expansion tank in your vehicle provides extra space for fluid expansion and contraction due to temperature changes. Because it regularly experiences these fluctuations, it can become prone to cracks or breaks over time. To ensure that all coolant remains within the system, it's important to replace the tank if it has been damaged, such as with cracks, broken nipples, or damaged mounting points.

Show More Show Less

Select Vehicle

Purpose

Category

Home
Cooling

Expansion Tanks

Brand

Price

Shipping