Mercedes-Benz SLC300 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 SLC300 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 SLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2019 Mercedes-Benz SLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2017 Mercedes-Benz SLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2020 Mercedes-Benz SLC300L4-2.0L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$104.99 - $112.48
Show example Mercedes-Benz SLC300 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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Mazyar

8 years of experience
468 reviews
Mazyar
8 years of experience
Mercedes-Benz SLC300 L4-2.0L Turbo - Brake Pads Replacement (Front) - Atlanta, Georgia
Could not have been more pleased with the great customer experience provided by Mayzar. He was early on a day that was very nasty due to weather. Kept me updated and made sure I understood everything he did. Looking forward to my next maintenance experience with Your Mechanic team.

Alfonso

11 years of experience
9 reviews
Alfonso
11 years of experience
Mercedes-Benz E350 V6-3.5L - Battery - Modesto, California
Great job very nice guy

Hugo

22 years of experience
87 reviews
Hugo
22 years of experience
Mercedes-Benz 190E L6-2.6L - Door will not shut - Silver Spring, Maryland
Hugo arrived ahead of time which was a welcome surprise especially for a car door that would not close. He fixed it within an hour and it has worked fine since that time, even though I still may need to get the part door actuator and have it replaced, he told me.

James

30 years of experience
877 reviews
James
30 years of experience
Mercedes-Benz CLS500 V8-5.0L - Windshield Washer Tubes - Debary, Florida
Timely and knowledgeable. Did a complete job and offered credit for parts that did not fit my car.

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5,170
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117
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