2018 BMW 540i Engine Cooling Parts

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Keep Your 2018 BMW 540i in Top Shape with Quality Engine Cooling Parts

Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 2018 BMW 540i looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Coolant Reservoirs, Coolant Reservoir Caps, and Coolant Temperature Sensors. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2018 BMW 540i Engine Cooling Part at Advance Auto Parts is around $82.81, with a range that starts at $8.99 and goes up to $292.99. With 11 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like Brass Coolant Air Bleeder Screw (OE Fix), Radiator Cap: 20 PSI, and Radiator Cap: 20 PSI start at just $8.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Blower Motor and Related Products and HVAC Electrical Parts. At Advance Auto Parts, we’re here to help you keep your 2018 BMW 540i in peak condition, inside and out.

Essential 2018 BMW 540i Engine Cooling Parts

Driveworks Water Pumps – Water Pump: New, Installation Gasket Included (Part No.57-1590)

Water Pump: New, Installation Gasket Included

from

$76.99
Driveworks Water Pumps offer a complete replacement part solution, with application coverage that spans from antique to present-day vehicles. All units are 100% tested and engineered to meet or exceed OEM performance, providing you a quality product you and your vehicle can rely on. All units are manufacturered with brand new components and are packaged with all gaskets required for replacement.

Product Features:
  • 100% Factory tested for leakage and dimensional precision
  • Manufactured to original casting specifications to ensure a proper fit and proper water flow for efficient cooling
  • Bearings made of heat-treated carbon or carburized steel are sealed and lubricated to ensure smooth performance throughout units life
  • Assembled with new, high-quality unitized shaft seals to prevent premature leakage
  • Supplied with gasket and other seals/gaskets as applicable per application to help complete the job
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
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Carquest Premium – Engine Water Pump (Part No.T7137)

Engine Water Pump

from

$80.99
Manufactured to meet or exceed OEM specifications.

Product Features:
  • 100% factory tested for leakage and dimensional precision.
  • Bearing noise and durability-tested.
  • Designed to match OE coolant flow rate and pressure.
  • All required hardware included for easy installation.
See More

Carquest Premium – Radiator (Part No.432527)

Radiator

from

$181.99
Carquest Premium Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Carquest Premium Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

Product Features:
  • Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
  • Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
  • Our fin edges are folded for increased stability and heat disbursement properties.
  • Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
  • Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
  • We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
  • We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
See More

Carquest Premium – Radiator (Part No.813634)

Radiator

from

$292.99
Carquest Premium Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Carquest Premium Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

Product Features:
  • Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
  • Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
  • Our fin edges are folded for increased stability and heat disbursement properties.
  • Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
  • Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
  • We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
  • We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
See More

Carquest Premium – Radiator (Part No.432487)

Radiator

from

$191.99
Carquest Premium Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Carquest Premium Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

Product Features:
  • Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
  • Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
  • Our fin edges are folded for increased stability and heat disbursement properties.
  • Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
  • Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
  • We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
  • We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
See More

KAI – Radiator (Part No.RAD2285)

Radiator

from

$182.99
New Platinum Pro Radiator, 4.4/5.0/5.4 Liter Engines

Product Features:
  • 4.4/5.0/5.4 Liter Engines, Made Of Plastic and Aluminum
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Warranty: 5 Year, Limited
  • Radiator Cap Not Included
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Carquest Premium – Radiator (Part No.432526)

Radiator

from

$236.99
Carquest Premium Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Carquest Premium Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

Product Features:
  • Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
  • Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
  • Our fin edges are folded for increased stability and heat disbursement properties.
  • Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
  • Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
  • We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
  • We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
See More

KAI – Coolant Reservoir (Part No.BM3014101)

Coolant Reservoir

from

$83.99
New Platinum Pro Coolant Recovery Tank

Product Features:
  • Made Of Plastic
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Rein – Expansion Tank (Part No.EPT0263)

Expansion Tank

from

$77.99
Rein Automotive OE quality expansion tanks, install, fit and perform the way the original manufacturer intended. These tanks are designed to match or exceed the OE materials used and are produced from virgin plastic with no regrind to prevent cracking from heat cycles and ensure the plastic is durable and will have a long service life.

Product Features:
  • Produced from virgin plastic meeting/exceeding OE specifications and ensuring long life.
  • Resistant to cracking and wear from heat cycles preventing coolant loss.
See More

Rein – Expansion Tank (Part No.EPT0013)

Expansion Tank

from

$65.99
Rein Automotive OE quality expansion tanks, install, fit and perform the way the original manufacturer intended. These tanks are designed to match or exceed the OE materials used and are produced from virgin plastic with no regrind to prevent cracking from heat cycles and ensure the plastic is durable and will have a long service life.

Product Features:
  • Produced from virgin plastic meeting/exceeding OE specifications and ensuring long life
  • Resistant to cracking and wear from heat cycles preventing coolant loss
  • Direct fitment allows easy installation
  • Manufactured to strict engineering standards/specifications in materials and tolerances
See More

KAI – Coolant Reservoir (Part No.BM3014103)

Coolant Reservoir

from

$57.99
New Platinum Pro Coolant Recovery Tank

Product Features:
  • Made Of Plastic
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

URO Parts – Expansion Tank (Part No.17138610656)

Expansion Tank

from

$119.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced ¿Genuine¿ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.

Product Features:
  • Guaranteed fitment
  • Precision-molded to OE dimensions to ensure compatibility with original sensors and connections
  • Quality materials resist engine heat and harsh cooling system environment
  • Factory pressure-tested
See More

URO Parts – Coolant Tank Bleeder Screw, Made from durable brass instead of plastic like the OEM (Part No.17111712788PRM)

Coolant Tank Bleeder Screw, Made from durable brass instead of plastic like the OEM

from

$2.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced ¿Genuine¿ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.

Product Features:
  • Made from durable brass instead of plastic like the OEM
  • Plastic tends to try out and break
  • Stronger material reduces chance of stripping the head during removal
  • Guaranteed fitment
  • Replacement of leaking recovery tank bleeder screw instantly restores cooling system integrity
  • Durable materials and stout design matches OE to resist hot pressurized coolant
See More

Dorman – Brass Coolant Air Bleeder Screw (OE Fix) (Part No.902-404HP)

Brass Coolant Air Bleeder Screw (OE Fix)

from

$8.99
On certain BMW, Mini, Chrysler, Dodge, Jeep, and Ram vehicles, the original equipment engine coolant bleeder screw is made of plastic. Over time and during normal service, the head of the plastic screw deforms, becomes difficult to turn, and inevitably requires replacement. This Dorman OE FIX coolant air bleeder screw is made of brass to resist deforming during service, saving the expense of replacing the original screw with the same failure-prone plastic design.

Product Features:
  • Upgraded material – this brass coolant air bleeder screw reduces future maintenance costs by replacing the original equipment plastic screw on specified BMW, Mini, Chrysler, Dodge, Jeep, and Ram vehicles
  • Ideal solution – instead of wasting time wrestling with a deformed plastic screw head, this sturdy brass screw ensures easy, reliable removal and reuse
  • Durable construction – made of quality brass for reliable performance and long service life
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Coolant Air Bleeder Screw (Part No.902-404)

Coolant Air Bleeder Screw

from

$14.99
This engine coolant bleeder screw has been manufactured from durable material to prevent cooling system leaks. Matches the original screw for fit and function.

Product Features:
  • Ideal replacement – this engine coolant bleeder screw matches fit and function of the original equipment screw
  • Durable materials – designed to withstand high cooling system temperatures and pressures
  • Cost-effective solution – this bleeder screw offers original equipment quality at a competitive price
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and Length service life
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Delphi – Engine Coolant Temperature Sensor (Part No.TS10258)

Engine Coolant Temperature Sensor

from

$59.99
Delphi’s history is one of OE heritage and quality. Our global technical requirements include design specifications and validation testing based on over 100 years of OE experience. Our material selections, material thickness, and material types are built from OE specifications to exceed aftermarket expectations. We put in place strict manufacturing processes to ensure quality control in every part we make. Delphi’s pioneering spirit delivers innovative solutions designed to support the aftermarket in servicing the vehicles of today, and tomorrow.

Product Features:
  • Delphi temperature sensors deliver accurate readings and optimal performance
  • Delphi’s 1 piece design and automated production process eliminates internal connectors and failure points
  • Each sensor is electrically insulated to eliminate interference from other components in the vehicle
  • Delphi temperature sensors are impervious to electrical noise and interference
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Carquest Premium – Engine Coolant Temperature Sensor (Part No.WTA2276)

Engine Coolant Temperature Sensor

from

$96.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% factory resistance calibrated to ensure extremely accurate temperature readings for optimal performance
  • O-rings, seals or thread sealant are included if required
  • Wires, clips and probe length match OE (where applicable)
  • Weather-tight connectors prevent leaks and corrosion for longer life
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Carquest Premium – Coolant Temperature Sensor 1TS1036 (Part No.WTC1142)

Coolant Temperature Sensor 1TS1036

from

$32.99
Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • OE precision matched thermistor ensuring Carquest sensors match OE output resistances across all temperature positions
  • O-rings, seals or thread sealant are included if required
  • Weather-tight connectors prevent leaks and corrosion for longer life
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Carquest Premium – Coolant Temperature Sensor (Part No.WTC1608)

Coolant Temperature Sensor

from

$32.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • OE precision matched thermistor ensuring sensors match OE output resistances across all temperature positions
  • O-rings, seals or thread sealant are included if required
  • Weather-tight connectors prevent leaks and corrosion for longer life
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Carquest Premium – Coolant Temperature Sensor 1TS1015 (Part No.WTC1038)

Coolant Temperature Sensor 1TS1015

from

$28.99
Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • OE precision matched thermistor ensuring Carquest sensors match OE output resistances across all temperature positions
  • O-rings, seals or thread sealant are included if required
  • Weather-tight connectors prevent leaks and corrosion for longer life
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

NTK – Engine Coolant Temperature Sensor (Part No.EF0086)

Engine Coolant Temperature Sensor

from

$32.99
The Engine Coolant Temperature Sensor determines the exact temperature of the engine coolant by sending an analog signal to the ECM to ensure proper air/fuel ratio along with proper operation of the cooling fans and temperature gauge. The Engine Coolant Temperature Sensor may be located on the cylinder head, engine block, thermostat housing or intake manifold. Reasons for replacement include, check engine light illumination, erratic or no temperature gauge operation, erratic or no cooling fan operation, and engine overheating.

Product Features:
  • OE MATCHED: Wires and probe length match OE. Mounting clips included where applicable
  • FASTER RESPONSE TIME: Thermal conductive grease inside brass housing increases sensor response time
  • THE DIFFERENCE: Thread sealant/o-ring installed where applicable. Thermistor placement within the housing matches OE to ensure proper output. Proper thermal conductive grease to provide accurate temperature transfer to the thermistor
See More

Carquest Premium – Radiator Cap: 20 PSI (Part No.T64)

Radiator Cap: 20 PSI

from

$27.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:


    Product Features:
    • Maintains proper cooling system pressure
    • Easy installation and removal
    • 100% tested to ensure proper pressure and longevity
    • Meets all OEM specifications
See More

Rein – Cap-Expansion Tank (Part No.CPE0035)

Cap-Expansion Tank

from

$24.99
Rein Automotive OE Quality expansion tank caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Rein Automotive OE quality expansion tank caps keep the coolant system at the proper pressure just like the OE cap.

Product Features:
  • Manufactured to strict engineering standards/specifications in materials and tolerances.
  • Direct fit.
  • Meets or exceeds pressure specifications demanded by the OE manufacturer.
  • Produced by an original equipment supplier.
See More

Carquest Premium – Radiator Cap: 30 PSI (Part No.10247)

Radiator Cap: 30 PSI

from

$25.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Carquest Premium – Standard Reservoir Cap: 20 PSI (Part No.10246)

Standard Reservoir Cap: 20 PSI

from

$23.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Motorad – Radiator Cap: 20 PSI (Part No.T-64)

Radiator Cap: 20 PSI

from

$26.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Most Popular Coolant Reservoirs for 2018 BMW 540is

Enhance your 2018 BMW 540i with one of the 2 Coolant Reservoirs we have in stock, starting at just $77.99.

URO Parts – Expansion Tank (Part No.17138610656)

Expansion Tank

from

$119.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced ¿Genuine¿ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.

Product Features:
  • Guaranteed fitment
  • Precision-molded to OE dimensions to ensure compatibility with original sensors and connections
  • Quality materials resist engine heat and harsh cooling system environment
  • Factory pressure-tested
See More

Rein – Expansion Tank (Part No.EPT0263)

Expansion Tank

from

$77.99
Rein Automotive OE quality expansion tanks, install, fit and perform the way the original manufacturer intended. These tanks are designed to match or exceed the OE materials used and are produced from virgin plastic with no regrind to prevent cracking from heat cycles and ensure the plastic is durable and will have a long service life.

Product Features:
  • Produced from virgin plastic meeting/exceeding OE specifications and ensuring long life.
  • Resistant to cracking and wear from heat cycles preventing coolant loss.
See More

Best-Selling 2018 BMW 540i Coolant Reservoir Caps

Upgrade your 540i with one of our 3 best-selling Coolant Reservoir Caps.

Motorad – Radiator Cap: 20 PSI (Part No.T-64)

Radiator Cap: 20 PSI

from

$26.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Carquest Premium – Radiator Cap: 20 PSI (Part No.T64)

Radiator Cap: 20 PSI

from

$27.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:


Product Features:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Rein – Cap-Expansion Tank (Part No.CPE0035)

Cap-Expansion Tank

from

$24.99
Rein Automotive OE Quality expansion tank caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Rein Automotive OE quality expansion tank caps keep the coolant system at the proper pressure just like the OE cap.

Product Features:
  • Manufactured to strict engineering standards/specifications in materials and tolerances.
  • Direct fit.
  • Meets or exceeds pressure specifications demanded by the OE manufacturer.
  • Produced by an original equipment supplier.
See More

Top-Quality Coolant Temperature Sensors for 2018 BMW 540is

Choose a high-quality OEM or aftermarket Coolant Temperature Sensor for BMW 540is and enjoy top-notch performance from $96.99.

Carquest Premium – Coolant Temperature Sensor (Part No.WTA2355)

Coolant Temperature Sensor

from

$137.99
Approved materials for increased durability in even the most extreme temperatures. All Carquest Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
  • Thread Sealant and/or O-ring pre-installed on applicable sensors to ensure leak free performance
  • Brass sensor housing precision machined to meet or exceed OE thermal conductivity
  • OE precision matched thermistor position for correct output parameters
  • Extensive product testing includes salt spray, high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all sensors meet or exceed OEM specifications.
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Carquest Premium – Engine Coolant Temperature Sensor (Part No.WTA2276)

Engine Coolant Temperature Sensor

from

$96.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% factory resistance calibrated to ensure extremely accurate temperature readings for optimal performance
  • O-rings, seals or thread sealant are included if required
  • Wires, clips and probe length match OE (where applicable)
  • Weather-tight connectors prevent leaks and corrosion for longer life
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

Our Top Pick for a 2018 BMW 540i Radiator

Invest in a durable Radiator for your 2018 BMW, knowing you’re getting trusted brands and expert craftsmanship.

Carquest Premium – Radiator (Part No.813634)

Radiator

from

$292.99
Carquest Premium Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Carquest Premium Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

Product Features:
  • Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
  • Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
  • Our fin edges are folded for increased stability and heat disbursement properties.
  • Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
  • Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
  • We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
  • We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
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Our Water Pumps for 2018 BMW 540is

Make a smart move for your 2018 BMW 540i with our Water Pump for $80.99.

Carquest Premium – Engine Water Pump (Part No.T7137)

Engine Water Pump

from

$80.99
Manufactured to meet or exceed OEM specifications.

Product Features:
  • 100% factory tested for leakage and dimensional precision.
  • Bearing noise and durability-tested.
  • Designed to match OE coolant flow rate and pressure.
  • All required hardware included for easy installation.
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FAQs for 2018 BMW 540i Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2018 BMW 540is?

Out of 11 Engine Cooling Parts that fit 2018 BMW 540is, the following parts are the top sellers:

What’s the price range for 2018 BMW 540i Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2018 BMW 540i range from $8.99 up to $292.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2018 BMW 540i?

The average price for Engine Cooling Parts for the 2018 BMW 540i is $82.81. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Cooling Parts for other BMW 540i model years?

Yes, we carry Engine Cooling Parts for 14 model years of BMW 540is between 1994 and 2023. The following model years are the most popular for Engine Cooling Part purchases: 2023, 2022, 2021, 2020, 2019, 2017, 2003, 2002, and 2001.

What are the cheapest Engine Cooling Parts for my 2018 BMW 540i?

The cheapest 2018 BMW 540i Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 2018 BMW models?

Yes. We stock Engine Cooling Parts for 52 other popular 2018 BMW models. Some of the most popular are 2018 M3 Engine Cooling Parts, 2018 530i Engine Cooling Parts, 2018 330i Engine Cooling Parts, 2018 X3 Engine Cooling Parts, and 2018 X5 Engine Cooling Parts.

What types of Engine Cooling Parts do you sell for my 2018 BMW 540i?

As of 3/1/26, these are some of the most in-demand types of Engine Cooling Parts for a 2018 BMW 540i:

Can I get help with 2018 BMW 540i Engine Cooling Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about BMW Engine Cooling Parts and more.

What is your return policy for BMW 540i Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new BMW 540i Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.