BMW 540i xDrive Pressure Test Radiator Cap at your home or office.

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Pressure Test Radiator Cap Service

How much does a Pressure Test Radiator Cap cost?

On average, the cost for a BMW 540i xDrive Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2018 BMW 540i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2020 BMW 540i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
* BMW 540i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2019 BMW 540i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$104.99 - $112.48
2017 BMW 540i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.02 - $112.55
2021 BMW 540i xDriveL6-3.0L Turbo HybridService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2022 BMW 540i xDriveL6-3.0L Turbo HybridService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$109.87 - $117.28
Show example BMW 540i xDrive Pressure Test Radiator Cap prices

What is the radiator cap pressure test all about?

In a pressurized cooling system like those found on all cars, your car’s radiator cap is calibrated to seal in coolant to a particular pressure point, then allow some vapor to escape once that threshold has been reached. The ejected fluid is piped into the overflow bottle you might have seen in the engine bay. Then, as the engine cools, the coolant level may drop inside radiator. When that happens, a reverse-flow valve in the radiator cap opens to allow fluid from the bottle to return to the radiator. A radiator cap that isn’t working properly may cause too much fluid to escape the system.

Keep in mind:

  • A radiator cap pressure test is quick and simple, and replacement radiator caps are inexpensive.
  • Leaving a defective radiator cap in place can cause damage to the engine.

How it's done:

  • The vehicle engine is cooled before the radiator cap can be removed
  • The radiator pressure is relieved and the cap is removed
  • The radiator cap is pressure tested to specifications
  • The radiator cap is replaced and/or reinstalled to the radiator
  • The vehicle is verified to confirm problem is fixed

Our recommendation:

If your car’s engine overheats, or the overflow bottle seems overly full, have the radiator (and radiator cap) pressure tested.

What are the common symptoms indicating you need to pressure test the radiator cap?

  • Car overheats
  • Car’s overflow bottle fills up

How important is this service?

Not having this safety valve on the car’s cooling system operate properly can over- or under-pressurize the system, leading to damage to hoses, the radiator, and even the car’s cylinder head.

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Craig

16 years of experience
67 reviews
Craig
16 years of experience
BMW 530i L6-3.0L - Windshield Washer Pump Replacement (Front) - San Jose, California
Craig is a very nice guy and his service is super!

Fred

33 years of experience
7 reviews
Fred
33 years of experience
BMW Z4 L6-2.5L - Ambient Temperature Sensor (Switch) - Santa Cruz, California
Fred was not only right on time and knowledgeable, he was also very easy to talk to and friendly. As a woman, it was such a relief to not be condescended to. I felt so comfortable with Fred and being new to Santa Cruz, I think I've found my mechanic now. Thank you, Your Mechanic.

Joshua

27 years of experience
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Joshua
27 years of experience
BMW 528i L6-2.8L - Check Engine Light is on - Concord, California
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Allen

36 years of experience
471 reviews
Allen
36 years of experience
BMW 328i L6-3.0L - Starter - Lake Mary, Florida
Allen is a fantastic mechanic by far one of the most honest I have ever met. Thanks Allen

Excellent Rating

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Rating Summary
6,159
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141
6,159
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141
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