BMW Cooling System Parts & Accessories for BMW X Series E84 (2013-2015)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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CRP Radiator Vent Hose - E82, E84, E88, E90, E92, E93
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Rein - Corporate Logo
T#:1195859
Part#: 17127565094
In Stock
$ 34.99 USD
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$ 34.99 USD
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Located on the top of the radiator
Rein Coolant Hose - E82, E84, E88, E90, E92, E93
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Rein - Corporate Logo
T#:592013
Part#: 17127599450
In Stock
$ 58.99 USD
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$ 58.99 USD
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Connects your radiator to the thermostat
Bavarian Autosport - Corporate Logo
T#:29666093
Part#: 11518635089
In Stock
Sale - Save 20% $ 343.99

This product was last offered at the strikethrough price on
05-03-2026

$ 275.19 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 343.99

This product was last offered at the strikethrough price on
05-03-2026

$ 275.19 USD
Free Shipping on orders $49 and up

A failing water pump can show early warning signs like coolant leaks or a whining noise from the engine bay—but with electric water pumps, failure can be sudden, often with no warning beyond rapid overheating.

If you suspect your water pump is on its way out, prompt replacement is critical to avoid engine damage. Stay alert to any changes in cooling system performance.

Note: Aluminum mounting bolts are single-use and must be replaced during installation.

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Rein Coolant Hose - BMW F22/23 F3X
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Rein - Corporate Logo
T#:594310
Part#: 11537639997
In Stock
$ 57.99 USD
Free Shipping on orders $49 and up
Water pipes and coolant hoses are essential for proper cooling. If they are cracked, they are going to need to be replaced as soon as possible to avoid overheating your engine.

Rein Water Hose With Gasket - Water Pump To Engine Inlet
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Rein - Corporate Logo
T#:17804808
Part#: 11537584630R
Back Ordered
$ 40.99 USD
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Rein OE quality water hoses are designed to be direct replacements for OE hoses and assemblies. This includes the hose and clamps.
Rein Coolant Hose - BMW F22/23 F3X
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Rein - Corporate Logo
T#:591823
Part#: 11537639998
In Stock
$ 42.99 USD
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Connects from water pump to block

Coolant Hose
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Rein - Corporate Logo
T#:594291
Part#: 11537584549
In Stock
$ 31.99 USD
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Connects to the thermostat. Replacement from Rein.
Rein - Corporate Logo
T#:53750144
Part#: CHU0629
In Stock at Vendor
New Item
$ 56.99 USD
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Upgraded Coolant Hose from Rein Featuring Metal Flanges to Reduce Leaks

Febi - Corporate Logo
T#:340719
Part#: 17117639020
In Stock
$ 16.99 USD
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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. 

Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered.

This item fits the following BMWs:  
2008-2013  E82 BMW  128i 135i 135is 1M Coupe 
2014+  F22 BMW  228i 228i xDrive M235i M235i xDrive 
2012+  F30 BMW  320i 320i xDrive 328d 328d xDrive 328i 328i xDrive 335i 335i xDrive - Sedan 
2013+  F31 BMW  328i xDrive 328d xDrive - Wagon 
2014+  F34 BMW  328i xDrive GT, 335i xDrive GT - Gran Tourismo 
2013+  F32 BMW  428i 428i xDrive 435i 435i xDrive - Coupe 
2013+  F33 BMW  428i Convertible 428i xDrive Convertible 435i Convertible 435i xDrive Convertible- Convertible 
2014+  F36 BMW  428i Gran Coupe 428i xDrive Gran Coupe 435i Gran Coupe 435i xDrive Gran Coupe 
2014+  F07 BMW  535i GT, 535i xDrive GT 
2012+  F10 BMW  528i 528i xDrive 535i 535i xDrive 535d 535d xDrive 
2011+  F10 BMW  528i 528i xDrive 535i 535i xDrive 535d 535d xDrive 
2012+  F12 BMW  640i 640i xDrive 650i 650i xDrive 
2013+  F06 BMW  640i Gran Coupe 640i xDrive Gran Coupe 650i Gran Coupe 650i xDrive Gran Coupe 
2009+  F01 BMW  740i 740li 740li xDrive 740ld xDrive 750i 750li 750i xDrive 750li xDrive 760li 
2013+  E84 BMW  X1 sDrive28i X1 xDrive28i X1 xDrive35i 
2011+  F25 BMW  X3 xDrive28i X3 xDrive28d X3 xDrive35i 
2015+  F26 BMW  X4 xDrive28i X4 xDrive35i 
2007-2013  E70 BMW  X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive35d X5 xDrive35i X5 xDrive48i X5 xDrive50i X5M 
2014+  F15 BMW  X5 sDrive35i X5 xDrive35d X5 xDrive35i X5 xDrive50i 
2008-2014  E71 BMW  X6 xDrive35i X6 xDrive50i X6M 
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Rein Water Pump Service Kit - N20
From production years 2013- 2015
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Rein - Corporate Logo
T#:14023856
Part#: 11518635089-3
Ships in 3 Business Days
$ 898.99 USD
Free Shipping on orders $49 and up
$ 898.99 USD
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Kits include: water pump thermostat assembly head to thermostat hose w/ aluminum flange WP to engine hose WP to thermostat hose all necessary clamps and hardware This Rein water pump service kit addresses common coolant hose plastic flange failure and ensures that the water pump replacement repair is done right the first time. The water pump and thermostat are OEM Use of OE or Pentosin NF-G11 coolant is recommended
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Radiator Hose - Engine To Radiator
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Rein - Corporate Logo
T#:594372
Part#: 17127612444
Ships in 3 Business Days
$ 57.99 USD
Free Shipping on orders $49 and up
Replacement Radiator Hose - Engine To Radiator from Rein
Rein - Corporate Logo
T#:46478582
Part#: CHT0690
Back Ordered
$ 56.00

This product was last offered at the strikethrough price on
04-28-2026

$ 55.99 USD
Free Shipping on orders $49 and up
$ 55.99 USD
Free Shipping on orders $49 and up
Your turbo is constantly working under extreme heat and pressure, generating serious boost every time you get on the gas. The turbo cooling lines are responsible for circulating coolant through the turbocharger, keeping temperatures in check and safeguarding internal components from excessive heat. With time, these lines can corrode, crack, or clog—compromising coolant flow and system efficiency. If left unchecked, a failing line can lead to overheating, loss of performance, or even costly turbo damage. Why replacing them matters: Protect your turbo – Ensures proper cooling to prevent heat soak and extend turbo life. Stop leaks early – Prevent small coolant drips from turning into bigger, more expensive problems. Keep performance consistent – Reliable cooling means steady boost and dependable operation. Don’t let a tired cooling line put your turbo at risk—replace it and keep your forced-induction system performing at its best.
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BMW Thermostat
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:16242199
Part#: 11537601158
Special Order: No Guaranteed ETA
$ 209.99 USD
$ 209.99 USD
BMW Radiator Hose
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:16873816
Part#: 17124552398
Special Order: No Guaranteed ETA
$ 49.99 USD
$ 49.99 USD
Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.
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Febi - Corporate Logo
T#:56001934
Part#: 46221
Special Order: No Guaranteed ETA
New Item
$ 19.99 USD
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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#:56001956
Part#: 11538635689
Special Order: No Guaranteed ETA
New Item
$ 126.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein thermostat assembly is the perfect solution for maintaining correct cooling system pressures and temperatures on the street or the track.

Meyle - Corporate Logo
T#:54959296
Part#: 314 223 0004
Ships on Oct 30, 2026
New Item
$ 75.99 USD
Free Shipping on orders $49 and up
This Meyle original-quality expansion tank provides a durable, reliable solution to get your cooling system back to performing exactly as it should.
Meyle - Corporate Logo
T#:5704976
Part#: 11538635689
Special Order: No Guaranteed ETA
$ 72.99 USD
Free Shipping on orders $49 and up
When it comes to your temperature gauge on your instrument cluster your thermostat plays a large role in where that temperature needle ends up. There are many cases where the vehicle will run a bit cool according to that gauge, oftentimes meaning the thermostat has failed and is stuck open allowing coolant to continuously circulate. The other more damaging side is when it closes shut and keeps the engine from cooling down properly. All vehicles are designed to operate in an ideal temperature range for the ultimate efficiency, life, and performance.
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Rein Radiator Hose - Radiator To Thermostat
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:17605210
Part#: 17127612445
Ships in 3 Business Days
$ 58.99 USD
Free Shipping on orders $49 and up
Rein lower radiator hose replacement.