Mercedes-Benz CL550 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 CL550 Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2013 Mercedes-Benz CL550V8-4.7L TurboService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2008 Mercedes-Benz CL550V8-5.5LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2009 Mercedes-Benz CL550V8-5.5LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2011 Mercedes-Benz CL550V8-4.7L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$104.99 - $112.48
2014 Mercedes-Benz CL550V8-4.7L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.02 - $112.55
2012 Mercedes-Benz CL550V8-4.7L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2007 Mercedes-Benz CL550V8-5.5LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$117.28 - $130.25
2010 Mercedes-Benz CL550V8-5.5LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$117.94 - $131.39
Show example Mercedes-Benz CL550 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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Farnaz

20 years of experience
80 reviews
Farnaz
20 years of experience
Mercedes-Benz CL550 V8-5.5L - Oil Change - San Clemente, California
First class, will definitely use his expertise again. I rarely give 10's but will make an exception in Hani's case.

Adam

17 years of experience
230 reviews
Adam
17 years of experience
Mercedes-Benz CL550 V8-5.5L - Battery Light is on - West Palm Beach, Florida
Guys top class period

Tom

42 years of experience
205 reviews
Tom
42 years of experience
Mercedes-Benz CL550 V8-4.6L Turbo - Battery - Los Altos, California
Very professional and customer service oriented! Highly recommended!!!

Patrick

32 years of experience
369 reviews
Patrick
32 years of experience
Mercedes-Benz CL550 V8-5.5L - UberX Inspection and Oil Change Package - Henderson, Nevada

Excellent Rating

(21)

Rating Summary
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21
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Number of Mercedes-Benz CL550 services completed
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