Mercedes-Benz 600SEC 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 600SEC Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 Mercedes-Benz 600SECV12-6.0LService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$132.49 - $145.62
Show example Mercedes-Benz 600SEC 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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Jeff
33 years of experience
Mercedes-Benz E350 V6-3.5L - Inspection / Diagnostics - Elk Grove, California

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Aurelio
36 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - Starter - New Braunfels, Texas
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11 years of experience
129 reviews
Mila
11 years of experience
Mercedes-Benz GL550 V8-4.6L Turbo - Brake Pads Replacement (Front, Rear) - Great Falls, Virginia
He arrived on time and was quick with the service but he was not able to complete the job as he did not have correct tools(software) to perform REAR break replacement.

Colby

14 years of experience
66 reviews
Colby
14 years of experience
Mercedes-Benz GLK350 V6-3.5L - Spark Plugs - Broomfield, Colorado
I would highly recommend Colby as he's professional, honest, trustworthy and a true expert at his craft! 5+ Stars indeed! Thanks again Colby!

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5,188
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