Mercedes-Benz ML550 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 ML550 Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Mercedes-Benz ML550V8-4.7L TurboService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2008 Mercedes-Benz ML550V8-5.5LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2013 Mercedes-Benz ML550V8-4.7L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2009 Mercedes-Benz ML550V8-5.5LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.48 - $125.60
2015 Mercedes-Benz ML550V8-4.7L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.02 - $112.55
2014 Mercedes-Benz ML550V8-4.7L TurboService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2010 Mercedes-Benz ML550V8-5.5LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$117.28 - $130.25
2011 Mercedes-Benz ML550V8-5.5LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$117.94 - $131.39
Show example Mercedes-Benz ML550 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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Excellent Rating

(25)

Rating Summary
23
2
0
0
0
23
2
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0

Manuel

32 years of experience
582 reviews
Manuel
32 years of experience
Mercedes-Benz ML550 V8-5.5L - Brake Pads Replacement (Front) - Dana Point, California
Manuel was awesome. Showed up on time and was outstanding making sure he kept everything clean while installing new rotors and breaks. He went over everything with me and no doubt I will request him again for my next service

Justin

8 years of experience
40 reviews
Justin
8 years of experience
Mercedes-Benz ML550 V8-5.5L - Liftgate Latch - Roanoke, Texas
Justin was great. Professional and kind and fixed the problem. Would definitely use again.

Attila

19 years of experience
963 reviews
Attila
19 years of experience
Mercedes-Benz ML550 V8-4.7L Turbo - Check Engine Light is on - Norwood, New Jersey
Attila performed his job with the utmost passion and precision! His personality is inviting and he thoroughly explained the processes as well as his recommendations on all work required and not required. I will undoubtedly book him for future work.

Chris

22 years of experience
2266 reviews
Chris
22 years of experience
Mercedes-Benz ML550 V8-4.7L Turbo - Axle / CV Shaft Assembly Replacement (Driver Side Front) - Santa Ana, California
On time professional and great work!

Excellent Rating

(25)

Rating Summary
23
2
0
0
0
23
2
0
0
0
Number of Mercedes-Benz ML550 services completed
275+
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TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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