BMW M235i 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 M235i 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
2016 BMW M235i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$139.99 - $158.75
2015 BMW M235i xDriveL6-3.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$120.04 - $138.82
Show example BMW M235i 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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Robert

22 years of experience
285 reviews
Robert
22 years of experience
BMW M235i xDrive L6-3.0L Turbo - Oil Change - Fort Worth, Texas
Did an awesome job

Tien

23 years of experience
903 reviews
Tien
23 years of experience
BMW 325es L6-2.7L - Timing Belt - Oakland, California
Booked Tien 3 times for troubleshooting misfire on engine. He is always on time and provides explanation for everything you ask. Very honest with the answers and will not sugar coat things if he finds a problem. We ended up fixing idle issues, intake leaks, coolant leaks, and did a timing belt/water pump replacement. In summary, you will want to book him for your next appointment if you booked him your first time.

Jose

10 years of experience
285 reviews
Jose
10 years of experience
BMW X3 L6-2.5L - Alternator - Saint Petersburg, Florida
Great mechanic!

Joseph

27 years of experience
578 reviews
Joseph
27 years of experience
BMW 540i V8-4.4L - Radiator Hose Repair - Missouri City, Texas
As before..very nice.. courteous and professional

Excellent Rating

(6,643)

Rating Summary
6,192
205
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142
6,192
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44
142
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