Mercedes-Benz GLC300 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 Mercedes-Benz GLC300 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 Mercedes-Benz GLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2021 Mercedes-Benz GLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2016 Mercedes-Benz GLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2019 Mercedes-Benz GLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$104.99 - $112.48
2017 Mercedes-Benz GLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.02 - $112.55
2020 Mercedes-Benz GLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
Show example Mercedes-Benz GLC300 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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Theodore

16 years of experience
1601 reviews
Theodore
16 years of experience
Mercedes-Benz GLC300 L4-2.0L Turbo - Oil Change - Bellevue, Washington
Efficient and spent time explaining a few extra things.

Nicholas

11 years of experience
589 reviews
Nicholas
11 years of experience
Mercedes-Benz GLC300 L4-2.0L Turbo - Oil Change - Raleigh, North Carolina
I have used Nicholas 3 times and have been very pleased each time.

Tomas

17 years of experience
226 reviews
Tomas
17 years of experience
Mercedes-Benz GLC300 L4-2.0L Turbo - Oil Change - Springfield, New Jersey
Very competent mechanic and conveniently done at my drive way.

Mike

20 years of experience
42 reviews
Mike
20 years of experience
Mercedes-Benz GLC300 L4-2.0L Turbo - Oil Change - Stockbridge, Georgia
Service was Great. Mike xmas on time and very knowledgeable. Will request him again without a doubt.

Excellent Rating

(11)

Rating Summary
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Number of Mercedes-Benz GLC300 services completed
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