Mercedes-Benz ML500 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 ML500 Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2005 Mercedes-Benz ML500V8-5.0LService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2003 Mercedes-Benz ML500V8-5.0LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2006 Mercedes-Benz ML500V8-5.0LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2004 Mercedes-Benz ML500V8-5.0LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.48 - $125.60
2002 Mercedes-Benz ML500V8-5.0LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.55 - $125.72
2007 Mercedes-Benz ML500V8-5.0LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
Show example Mercedes-Benz ML500 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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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(60)

Rating Summary
49
4
0
0
7
49
4
0
0
7

Hector

14 years of experience
60 reviews
Hector
14 years of experience
Mercedes-Benz ML500 V8-5.0L - Power steering fluid is leaking - Aurora, Colorado
Professional, knowledgeable and great cu stomer service. I will chose him next time!

AL

12 years of experience
237 reviews
AL
12 years of experience
Mercedes-Benz ML500 V8-5.0L - Oil Change - Aurora, Colorado
AWESOME JOB! FAST AND PROFESSIONAL!

Bereketeab

7 years of experience
110 reviews
Bereketeab
7 years of experience
Mercedes-Benz ML500 V8-5.0L - Battery - Elk Grove, California
Bereketeabs was on time, very professional and took care of my service call as expected. It was a pleasure having him do the work.

Ben

18 years of experience
114 reviews
Ben
18 years of experience
Mercedes-Benz ML500 V8-5.0L - Brake Pads Replacement (Front, Rear) - Englewood, Colorado
Ben was great he only did the items that needed to be done and not anything extra that which is great. This was a fraction of the cost then the quote that I got at the dealership and it was really convenient!

Excellent Rating

(60)

Rating Summary
49
4
0
0
7
49
4
0
0
7
Number of Mercedes-Benz ML500 services completed
660+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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